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This is a record of a document published elsewhere, first published by the European Patent Office, as EP-4721915-A2, on 8 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000001054

Passive rotation disconnect

Published
Permanent URL
Classification
Robotics & Automation › Robot Architectures
Inventors
MANCUSO DOMINICK
Assignee
NAT OILWELL VARCO LP
Original source
EP-4721915-A2, the European Patent Office, 8 April 2026
Document SHA-256
070bd97633a5732ef59db77fc22ce8a7da3ea4b6ee38550e65e9fc6e02315af0

Abstract

A system for interchanging end effectors on a robot of a drill rig. The system comprises a robot (50), a coupling mechanism (100), and one or more end effectors (60). The robot (50) comprises a base portion (52) configured for securing to a drill floor of the drill rig, a shoulder portion (54) coupled to the base portion (52), an articulated arm (56) operably coupled to the shoulder portion (54) at a first end and extending to a second end, and a wrist portion (58) arranged on the second end of the articulated arm (56) and being adapted for selectively engaging and disengaging an end effector (60). The coupling mechanism (100) comprises a robot portion (102) and a tool portion (104). The one or more end effectors (60) are arranged at a setting location accessible by the wrist portion (58) of the robot (50) using the coupling mechanism (100). The robot (50) is configured to use the one or more end effectors (60) to perform selected operations on the drill rig and is further configured to use the coupling mechanism (100) to interchange end effectors (60) to use selected end effectors (60) that correspond to the selected operations.

Publication information

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Citation

OpenTechnical Publication OT-2026-000001054, “Passive rotation disconnect,” published September 15, 2026 at 19:03:48 UTC, https://opentechnical.org/p/OT-2026-000001054.

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Terms

This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.