https://opentechnical.org/feed/latest.xml 2026-09-15T10:35:44Z OpenTechnical Creative Commons Attribution 4.0 International https://opentechnical.org/p/OT-2026-0000000382026-09-15T10:35:44Z2026-09-15T10:35:44Z

This disclosure describes a system for optimizing inventory slotting within a storage facility by utilizing co-pick frequency as an affinity measure. The system addresses the practical challenge of implementing highly disruptive slotting plans by incorporating a bounded reslotting rate. It continuously evaluates potential item movements, weighing their estimated benefits against their estimated costs, and prioritizes those that provide the greatest return within the defined movement limits. The system includes specific mechanisms for identifying and managing seasonal items to prevent their removal from optimal locations prematurely.

https://opentechnical.org/p/OT-2026-0000000372026-09-15T10:35:03Z2026-09-15T10:35:03Z

This disclosure describes a shuttle system for automated storage and retrieval that incorporates a buffer position for aisle handover. The system addresses throughput loss caused by a shuttle waiting for lift availability, which can block an entire aisle. A dedicated buffer allows shuttles to deposit or retrieve storage units (totes) independently of immediate lift access, enabling continuous aisle operations even during temporary lift unavailability. This buffer strategy includes a handover protocol, queueing policies for various lift states, and recovery procedures for stranded totes, enhancing overall system resilience and utilization.

https://opentechnical.org/p/OT-2026-0000000362026-09-15T10:34:25Z2026-09-15T10:34:25Z

This disclosure describes a C-hook arrangement for handling wound coils, incorporating an eccentricity compensating suspension. The system addresses the problem of off-center coil pickup, which can cause the hook to tip, leading to damage to the coil edge during transport or removal from storage. The suspension mechanism dynamically adjusts its geometry to maintain a level lift even when the coil's center of gravity is offset from the hook's primary lifting axis. An integrated sensing and indication system provides real-time feedback to the operator regarding the degree of eccentricity and refuses a lift if the offset exceeds a predetermined safe limit, preventing potential damage.

https://opentechnical.org/p/OT-2026-0000000352026-09-15T10:33:40Z2026-09-15T10:33:40Z

This disclosure describes a zero-gravity balancer system configured to prevent uncontrolled load movement when an operator releases a load that is not perfectly balanced in float mode. The system incorporates a grip sensor to determine operator engagement with the load or end effector. When an operator is gripping, the balancer enters a float mode where load movement is permitted, but constrained by a maximum velocity threshold. Upon release of the grip, the system interprets this as an absence of operator intent and engages the drive to bring the load to a controlled stop, thereby maintaining the load's vertical position and preventing runaway motion.

https://opentechnical.org/p/OT-2026-0000000342026-09-15T10:32:52Z2026-09-15T10:32:52Z

This disclosure describes a control system for a scissor lift table that employs two independent linear actuators to maintain platform levelness without a mechanical tie. The system utilizes continuous position feedback from each actuator to detect and correct positional deviations. A defined correction authority limit prevents over-correction and racking. Integrated diagnostics monitor actuator performance and power consumption to identify seized conditions. In the event of a channel failure, the system transitions to a safe, controlled state, preventing uncontrolled movement and structural damage. This approach enhances operational stability and extends the service life of the lift mechanism.

https://opentechnical.org/p/OT-2026-0000000332026-09-15T10:32:18Z2026-09-15T10:32:18Z

This disclosure describes an anti-sway control system for cranes that mitigates payload oscillation during hoisting and trolley travel. The system utilizes feedback from a rope angle sensor to dynamically adjust the acceleration and deceleration profiles of the crane's motion axes. By incorporating real-time rope length measurements into the control algorithm, the system adapts its sway suppression parameters. This approach aims to reduce residual load swing upon stopping, enhancing operational efficiency and safety across a range of rope lengths, unlike open-loop methods tuned for a single configuration. Operator intervention during a move triggers a recalculation of the control trajectory.

https://opentechnical.org/p/OT-2026-0000000322026-09-15T10:31:30Z2026-09-15T10:31:30Z

This disclosure describes a vacuum lifting system control arrangement designed to mitigate the risks associated with sudden vacuum supply loss. It integrates a vacuum reservoir and check valve to maintain load adhesion for a defined duration following supply interruption. A control unit monitors vacuum levels and activates both audible and tactile warning systems when a threshold is crossed. Should the vacuum level continue to decline, the system initiates a controlled descent, gradually releasing the load rather than allowing an abrupt detachment. This provides operators with time to react and ensures a safer load handling process.

https://opentechnical.org/p/OT-2026-0000000302026-09-15T10:30:01Z2026-09-15T10:30:01Z

This disclosure describes a power and free monorail carrier incorporating a pusher dog designed to disengage from the power chain under controlled overload conditions. The arrangement addresses the problem of stalled power chains or carrier damage that can occur when a carrier becomes jammed within the conveyor system. The disengaging pusher dog permits the power chain to continue operation while the jammed carrier remains stationary, facilitating detection of the disengaged state and subsequent recovery. It also enables accumulation of subsequent carriers behind a stationary carrier without chain stalling.

https://opentechnical.org/p/OT-2026-0000000292026-09-15T10:29:17Z2026-09-15T10:29:17Z

This disclosure describes methods for managing thermal conditions in a drum motor, particularly when operating in duty cycles characterized by frequent starts and stops, such as in accumulation conveyor systems. The arrangement addresses the issue of motor overheating due to transient heat generation that exceeds steady-state dissipation capacity, even when average power consumption is within design limits. It details heat transfer pathways, the role of internal lubricant volume, techniques for estimating duty cycle severity from starts per hour, and strategies for protective intervention to prevent thermal damage to the motor winding.

https://opentechnical.org/p/OT-2026-0000000282026-09-15T10:28:44Z2026-09-15T10:28:44Z

This disclosure describes a right-angle transfer system utilizing a lift-and-shift roller bank to receive articles, reorient them by 90 degrees, and discharge them. The system incorporates an article squaring mechanism that engages during the lift phase, ensuring articles are precisely aligned before transfer, thereby mitigating the accumulation of positional skew. A controlled lift profile prevents tipping of tall articles. The system accounts for articles exceeding the maximum squaring length, allowing them to pass through without full alignment, and provides a timing window for reliable operation.

https://opentechnical.org/p/OT-2026-0000000272026-09-15T10:28:14Z2026-09-15T10:28:14Z

This disclosure describes a conveyor belt take-up system utilizing a constant force spring cartridge to maintain belt tension. The arrangement provides a substantially uniform tensioning force over its entire operating travel, eliminating the need for substantial headroom or a deep pit typically associated with gravity take-up systems. It addresses the issue of unnoticed tension drift common in screw take-ups by incorporating a travel indication mechanism. The system is designed to accommodate dynamic belt length changes and allows for monitoring of the remaining tensioning capacity.

https://opentechnical.org/p/OT-2026-0000000262026-09-15T10:27:44Z2026-09-15T10:27:44Z

This disclosure describes a two-stage belt cleaning system designed to mitigate carryback material on conveyor belts. The arrangement features a primary scraper blade for bulk material removal and a secondary scraper blade mounted on a compliant mechanism for fine cleaning. This configuration addresses the problem of carryback accumulating under the return side of the belt, which can lead to premature wear and damage to the belt and conveyor components. The system incorporates features for blade wear compensation, clearance for mechanical splices, and adapted operation for belts running in reverse, ensuring sustained cleaning efficacy.

https://opentechnical.org/p/OT-2026-0000000252026-09-15T10:27:08Z2026-09-15T10:27:08Z

This disclosure describes a modular fixturing base featuring an integrated, keyed grid for encoding and precisely reconstructing the positions of fixturing elements. The system addresses the challenge of accurately replicating complex fixture setups where conventional methods, relying solely on drawings, can introduce subtle positional deviations. By embedding unique geometric features within the grid and associating them with individual locations, the arrangement enables the capture of precise element positions. This encoding facilitates automated or semi-automated reconstruction of fixture layouts, ensuring high fidelity to an original configuration, even after disassembly or reconfiguration.

https://opentechnical.org/p/OT-2026-0000000242026-09-15T10:26:33Z2026-09-15T10:26:33Z

This disclosure describes a system for verifying the tool center point (TCP) of a robotic manipulator's end effector. A reference artifact featuring three precisely oriented touch planes is positioned within the robot's workspace. A contact-sensing tool engages each plane sequentially, and the robot's position encoder readings are recorded at each contact. These recorded positions are processed to determine the actual TCP location relative to the robot's base coordinate system. This actual TCP is then compared against a stored nominal TCP, and any deviation exceeding a predefined tolerance threshold triggers an alert, indicating potential tool damage or mounting displacement.

https://opentechnical.org/p/OT-2026-0000000232026-09-15T10:25:56Z2026-09-15T10:25:56Z

This disclosure describes an arrangement for reducing vibrational energy transmission from a powered hand tool body to its operator's hand. A handle assembly is mechanically decoupled from the main tool housing using compliant isolation elements. A tuned mass element, integrated within or rigidly attached to the handle assembly, is configured to resonate out of phase with primary tool vibrations. This counter-oscillation attenuates vibration in a targeted frequency band, typically between 50 Hz and 300 Hz, at the operator's grip. The arrangement aims to extend effective tool usage duration by reducing operator exposure to harmful vibration levels.

https://opentechnical.org/p/OT-2026-0000000222026-09-15T10:24:46Z2026-09-15T10:24:46Z

This disclosure describes a plate handling tool designed to securely grip plates of varying thicknesses and weights. The tool employs an edge grip mechanism that dynamically adjusts gripping force in proportion to the suspended load, preventing both crushing of thin plates and slippage of heavy plates. It utilizes a mechanical wedge action to translate vertical load into horizontal clamping pressure, ensuring stable handling across a broad range of material properties and accommodating potential slippage events.

https://opentechnical.org/p/OT-2026-0000000212026-09-15T10:23:37Z2026-09-15T10:23:37Z

A zero point clamping interface incorporates an integrated seating confirmation port to verify the complete engagement of a workpiece pallet. This arrangement addresses the issue of out-of-tolerance machining that can occur when a pallet is clamped but not fully seated, which visually appears identical to a correctly seated pallet. The system utilizes a pneumatic circuit to monitor pressure within a sealed volume formed upon correct seating, providing a distinct pressure signature for confirmation. This confirmation signal can be used to interlock machine operations, preventing processing of unseated workpieces and thereby reducing scrap and rework.

https://opentechnical.org/p/OT-2026-0000000202026-09-15T10:22:51Z2026-09-15T10:22:51Z

This disclosure describes a system for managing torque reaction forces generated by power fastening tools. A floating reaction arm mitigates the sudden impact transmitted to an operator's hand or wrist at the moment of fastener seating or tool shut-off. The system incorporates a controlled release mechanism that allows the reaction arm to disengage or yield in a controlled manner when a predetermined torque or force threshold is reached. This controlled release is tunable to the joint characteristics, such as hardness, preventing the full reaction impulse from being absorbed by the operator, while still allowing accurate torque application. The design also addresses conditions like stripped fasteners, where reaction forces may not peak as expected.

https://opentechnical.org/p/OT-2026-0000000192026-09-15T10:22:15Z2026-09-15T10:22:15Z

This disclosure describes a vacuum fixture system designed for securing drilling equipment to rough or uneven surfaces, such as cast or weathered concrete. The system incorporates a multi-stage compliant sealing element that maintains adhesion despite minor surface irregularities and localized leakage. A strategically integrated vacuum reserve volume accommodates transient pressure fluctuations, extending the operational window during momentary seal breaches. Furthermore, an active pressure monitoring subsystem provides an early warning of impending adhesion failure, allowing for intervention before full detachment. A mechanical override ensures continued securement even in the event of vacuum system degradation or power loss, enhancing operational safety and reliability in challenging environments where conventional vacuum fixtures are ineffective.

https://opentechnical.org/p/OT-2026-0000000182026-09-15T10:21:12Z2026-09-15T10:21:12Z

This disclosure describes a mechanism for extending the payload capacity and acceleration performance of a Delta robot by counterweighting its upper arm linkage. Traditional Delta robots experience a significant reduction in acceleration capability as payload increases, primarily due to the inertia of the upper arm structure. By integrating a counterweight system that acts to offset a portion of the upper arm's effective mass, the apparent inertia presented to the drive motors is reduced. This arrangement enables either higher payloads at a given acceleration or increased acceleration for a specified payload, while balancing potential impacts on the robot's reachable workspace and introducing additional mechanical complexity.

https://opentechnical.org/p/OT-2026-0000000172026-09-15T10:19:12Z2026-09-15T10:19:12Z

This disclosure describes a vacuum fixture designed to reliably attach to irregular and rough surfaces, particularly cast or weathered concrete, which typically challenge conventional vacuum-based anchoring systems. The arrangement incorporates a highly compliant sealing element, an internal vacuum reserve volume to manage momentary leaks, and a pressure monitoring system for early leak detection. A mechanical backup mechanism is also integrated, allowing for continued operation or safe disengagement in the event of vacuum loss. This system addresses the need for secure temporary anchoring on surfaces unsuitable for standard vacuum fixtures.

https://opentechnical.org/p/OT-2026-0000000162026-09-15T10:12:55Z2026-09-15T10:12:55Z

This disclosure describes an automated system for precisely inserting a component into a receiving aperture using force feedback. The system employs a spiral search pattern to locate the aperture, dynamically bounded by accumulated lateral force to prevent galling or damage. It differentiates between successful seating and jamming conditions based on axial and lateral force profiles. Should an insertion fail, the system initiates an adaptive retry sequence, modifying the approach angle to account for potential misalignment or obstruction, thereby enhancing reliability and reducing the risk of part damage during automated assembly operations.

https://opentechnical.org/p/OT-2026-0000000152026-09-15T10:12:22Z2026-09-15T10:12:22Z

This disclosure describes a robotic grasp planning system designed to address challenges in automated handling of stacked cartons, particularly when neighboring cartons obstruct potential grasp approaches. It details a methodology for scoring the accessibility of carton faces, incorporating a clearance model to identify geometrically valid yet practically infeasible grasps. The system includes mechanisms for optimizing pick order within a layer and for dynamic replanning when stack configurations deviate from initial models, ensuring efficient and reliable carton manipulation in dense storage or loading environments.

https://opentechnical.org/p/OT-2026-0000000142026-09-15T10:09:33Z2026-09-15T10:09:33Z

This disclosure describes a method for automated part insertion using a robotic manipulator. The system employs a force-controlled spiral search pattern to locate an aperture, mitigating issues associated with blind insertion. It differentiates between successful seating and jamming conditions by analyzing accumulated lateral forces and changes in axial force. Upon detecting a jamming condition, the system executes a retry sequence that adjusts the approach angle. This approach aims to improve insertion reliability and reduce damage to components during automated assembly operations, particularly in scenarios with positional uncertainties.

https://opentechnical.org/p/OT-2026-0000000132026-09-15T10:08:20Z2026-09-15T10:08:20Z

A method for planning robotic grasps on stacked cartons is disclosed, addressing situations where geometrically valid grasps fail due to obstructed approach paths. The system employs a vision system to model the carton stack and a grasp planning module to identify potential grasp faces. Each candidate face is assigned an accessibility score based on a clearance model that evaluates potential collisions with neighboring cartons or the supporting surface during gripper approach. This scoring guides the selection of optimal grasp points, influences the picking order within a layer, and enables dynamic replanning when the stack configuration changes.

https://opentechnical.org/p/OT-2026-0000000122026-09-15T10:05:01Z2026-09-15T10:05:01Z

This disclosure describes a system for monitoring the separation distance between a robot and a human operator, employing a dynamically computed stopping contour instead of fixed safety zones. The system addresses the limitation of conventional fixed zones that often lead to premature robot stops or require oversized zones that reduce operational efficiency. By continuously predicting the robot's stopping boundary based on its current kinematic state, payload, and joint configuration, the system facilitates closer human-robot collaboration while maintaining safety, thereby optimizing throughput and workspace utilization in collaborative robotics applications.

https://opentechnical.org/p/OT-2026-0000000112026-09-15T09:59:27Z2026-09-15T09:59:27Z

A robotic end effector is disclosed, designed for handling diverse items with varying stiffness and irregular geometries. It integrates soft finger elements with a granular jamming layer to achieve adaptive compliance and tunable stiffness. This arrangement addresses the challenge of securely grasping both delicate, deformable objects and rigid, irregularly shaped items within the same operational cycle, without requiring frequent tool changes or complex force control strategies. The gripper provides a conformable contact surface that solidifies upon vacuum application, enabling a controlled grip force distribution.

https://opentechnical.org/p/OT-2026-0000000102026-09-15T09:58:08Z2026-09-15T09:58:08Z

This disclosure describes a vacuum gripper array designed to handle loads with varying porosity, preventing system-wide vacuum collapse due to localized leaks. Each vacuum pad incorporates an individual check valve to isolate it from the common vacuum manifold. A control unit monitors system vacuum and can identify conditions indicative of an uncovered pad. A vacuum reservoir maintains system vacuum during transient events. The system employs a controlled release sequence to ensure gentle load placement, mitigating issues associated with sudden vacuum loss across the array when a portion of the load is porous or missing.

https://opentechnical.org/p/OT-2026-0000000092026-09-15T09:56:15Z2026-09-15T09:56:15Z

An apparatus for dispensing pallets from a stack is disclosed, designed to tolerate variations in pallet stringer board integrity and dimensions. It employs a tine-and-fork transfer mechanism that engages pallets without relying on precise stringer geometry, thereby preventing jams caused by damaged or non-standard stringers. The system includes a detection mechanism for identifying compromised pallets and a dedicated reject path. This arrangement facilitates automated handling of mixed pallet stacks, improving operational reliability in material handling systems where pallet quality is variable.

https://opentechnical.org/p/OT-2026-0000000082026-09-15T09:54:17Z2026-09-15T09:54:17Z

This disclosure describes an intermediate hanger bearing arrangement for screw conveyors handling abrasive bulk materials. The design addresses the common problem of premature bearing failure and subsequent conveyor outage by eliminating through-shaft lubrication and incorporating external flushing. The arrangement utilizes specific bearing materials chosen for wear resistance, a controlled flushing mechanism to prevent abrasive ingress, and provisions for early detection of wear to enable proactive maintenance, thus improving operational reliability and reducing downtime in demanding applications.

https://opentechnical.org/p/OT-2026-0000000072026-09-15T09:52:03Z2026-09-15T09:52:03Z

An automated goods-to-person picking station is described, featuring dual presentation bays and a shadowed pick face to enhance picking efficiency. This arrangement addresses the problem of operator idle time incurred while waiting for a subsequent item tote to be presented. By utilizing a bay alternation logic and pre-fetching the next required tote into a ready bay while the operator is actively picking from the other, continuous operation is facilitated. The system incorporates visual indicators at the pick face to guide the operator, and includes mechanisms to manage situations where material retrieval rates fall below the operator's picking pace.

https://opentechnical.org/p/OT-2026-0000000062026-09-15T09:49:49Z2026-09-15T09:49:49Z

A system for precise article induction onto a cross belt sorter carrier is disclosed. It addresses the problem of articles being misaligned, dropped, or split across multiple carriers due to induction timing that is not precisely synchronized with the physical position and pitch of the carriers. The arrangement utilizes an encoder system to derive induction timing windows directly from carrier pitch, ensuring articles are placed centrally onto individual carriers. Mechanisms for handling missed inductions and for carriers to report persistent loads beyond discharge points are also described.

https://opentechnical.org/p/OT-2026-0000000052026-09-15T09:48:35Z2026-09-15T09:48:35Z

An arrangement for separating overlapping parcels on a conveyor system is disclosed. It utilizes a series of rollers, each comprising multiple independently driven bands, to create a speed gradient across the conveyor width. This differential speed causes parcels that are in contact or partially overlapped to separate and align, enabling subsequent processing such as scanning or sorting. The system includes mechanisms for detecting parcel width and overlap, diverting un-singulatable parcels, and recirculating parcels for another attempt at singulation, thereby improving throughput and reducing manual intervention.

https://opentechnical.org/p/OT-2026-0000000042026-09-15T09:47:49Z2026-09-15T09:47:49Z

This disclosure describes a pallet layer transfer head configured for handling full layers of packaged goods, such as cartons. It incorporates independently actuated side clamping mechanisms and a compliant layer contact surface. The arrangement addresses the problem of layer instability and collapse that can occur when a rigid transfer head releases an uneven or loosely packed layer, particularly at the periphery. The design ensures controlled support during transfer and a sequenced, controlled release to maintain layer integrity.

https://opentechnical.org/p/OT-2026-0000000032026-09-15T09:47:02Z2026-09-15T09:47:02Z

An adaptive zero pressure accumulation conveyor system is disclosed, designed to manage articles of varying lengths efficiently. The system dynamically adjusts accumulation zone boundaries based on real-time article length measurements, preventing jams and optimizing conveyor density. Each zone incorporates sensors and a local controller to detect article presence and length. A central controller coordinates zone release logic, especially for articles spanning multiple physical zones. The arrangement addresses the problem of fixed-length accumulation zones which can lead to inefficiencies or blockages when article dimensions fluctuate significantly during operation.

https://opentechnical.org/p/OT-2026-0000000022026-09-15T09:44:57Z2026-09-15T09:44:57Z

A pallet layer transfer head is described for handling layers of articles, such as cartons, which may exhibit instability. The arrangement incorporates independently retractable side clamps designed to maintain support for the outermost articles during layer release. This addresses the problem where a conventional, rigid clamp head releases unevenly, leading to the collapse or disarray of unstable layers. The design includes features for precise clamp sequencing, compliant contact with article surfaces, and adaptive layer height sensing, ensuring controlled and stable transfer operations. The sequential release mechanism prioritizes continuous support for peripheral articles, mitigating layer collapse.

https://opentechnical.org/p/OT-2026-0000000012026-09-15T09:41:37Z2026-09-15T09:41:37Z

A self-correcting belt tracking system for conveyor applications is disclosed. It utilizes a pivoting idler assembly to steer the conveyor belt and maintain its central alignment. Belt edge position is continuously monitored by a non-contact sensor, which generates a signal proportional to lateral deviation. This signal is processed by a control unit that adjusts the pivot angle of the idler, thereby applying a corrective steering force to the belt. The system is designed to prevent belt edge wear and catastrophic tearing caused by off-center travel, addressing the limitations of manual tracking adjustments that often drift over time.