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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5059088-A, on 22 October 1991. 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-2026-000003414

Suction lifter for a material handling device

Published
Permanent URL
Classification
Material Handling › Conveying Systems
Inventors
KLEIN MANFRED
Assignee
KLEIN MANFRED
Original source
US-5059088-A, the United States Patent and Trademark Office, 22 October 1991
Document SHA-256
2d6c5fbdc450b290e6063a8166b77bca1c332b2760dfb272b0b06ed8d0776e67

According to the invention, a suction lifter for a material handling device is provided for work pieces with suction surfaces. At least one pneumatic, double acting working cylinder is provided with a suction cup arranged at an end of the piston rod. A piston of the working cylinder is provided cooperating with the cylinder to define a first working chamber, opposite the suction cup, and a second working chamber, adjacent to the suction cup. A directional control is provided for controlling a connection between the compressed air source and the working cylinder and for venting the working cylinder. The directional control includes a pressure reducing arrangement for the suction cup. The first working chamber is connected to the suction cup via a throttle valve and a 4/2-way valve is employed for controlling direction, the valve connecting the first working chamber to a vacuum device and connecting the second working chamber to a compressed air source in one switching position and in a second switching position the valve connecting the first working chamber to the compressed air source and directing the second working chamber to the vacuum device.

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Abstract

According to the invention, a suction lifter for a material handling device is provided for work pieces with suction surfaces. At least one pneumatic, double acting working cylinder is provided with a suction cup arranged at an end of the piston rod. A piston of the working cylinder is provided cooperating with the cylinder to define a first working chamber, opposite the suction cup, and a second working chamber, adjacent to the suction cup. A directional control is provided for controlling a connection between the compressed air source and the working cylinder and for venting the working cylinder. The directional control includes a pressure reducing arrangement for the suction cup. The first working chamber is connected to the suction cup via a throttle valve and a 4/2-way valve is employed for controlling direction, the valve connecting the first working chamber to a vacuum device and connecting the second working chamber to a compressed air source in one switching position and in a second switching position the valve connecting the first working chamber to the compressed air source and directing the second working chamber to the vacuum device.

1. Drawings

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Publication information

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Citation

OpenTechnical Publication OT-2026-000003414, “Suction lifter for a material handling device,” published September 15, 2026 at 20:24:50 UTC, https://opentechnical.org/p/OT-2026-000003414.

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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.