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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-4852926-A, on 1 August 1989. 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-2026-000003476

Vacuum cup construction

Published
Permanent URL
Classification
Robotics & Automation › Robot Architectures
Inventors
LITTELL EDMUND R
Assignee
LITTELL EDMUND R
Original source
US-4852926-A, the United States Patent and Trademark Office, 1 August 1989
Document SHA-256
fdb8b9ec43bc1320a0598b8d8f65eeeaa4fa088ff9ae45ead3e5f3c30f29a22c

A vacuum cup construction designed to support large items includes a planar outer plate, and a planar, generally coincidentally shaped inner plate which is smaller than the outer plate. A generally flat coincidentally shaped compressible unmolded, non-preformed sealing member, which is larger than the inner plate, is retained between the outer and inner plates by a threaded stud and a threaded nut connecting the outer and inner plates, the tightening of which compresses the sealing member. Compression of the sealing member causes the periphery to deform and form a sealing edge. A vacuum passage passes through the outer plate, the sealing member, and the inner plate to permit a vacuum to be drawn when the assembly is placed against the surface of an item or object.

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Abstract

A vacuum cup construction designed to support large items includes a planar outer plate, and a planar, generally coincidentally shaped inner plate which is smaller than the outer plate. A generally flat coincidentally shaped compressible unmolded, non-preformed sealing member, which is larger than the inner plate, is retained between the outer and inner plates by a threaded stud and a threaded nut connecting the outer and inner plates, the tightening of which compresses the sealing member. Compression of the sealing member causes the periphery to deform and form a sealing edge. A vacuum passage passes through the outer plate, the sealing member, and the inner plate to permit a vacuum to be drawn when the assembly is placed against the surface of an item or object.

1. Drawings

[0001]Sheet 1.

[0002]Sheet 2.

[0003]Sheet 3.

Publication information

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Citation

OpenTechnical Publication OT-2026-000003476, “Vacuum cup construction,” published September 15, 2026 at 20:32:24 UTC, https://opentechnical.org/p/OT-2026-000003476.

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