OpenTechnical
This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5013075-A, on 7 May 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-2026-000003431

Vacuum cup construction

Published
Permanent URL
Classification
Robotics & Automation › Robot Architectures
Inventors
LITTELL EDMUND R
Assignee
LITTELL EDMUND R
Original source
US-5013075-A, the United States Patent and Trademark Office, 7 May 1991
Document SHA-256
660cb09abc4a04778dc6c7ebe447b1858cbb45365a1faa74c16e5bd6b4ae7c0a

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-preferred sealing member, which is larger than the inner plate, is retained between the outer and inner plates by a threaded stud and an associated nut. The tightening of nut on the threaded stud compresses the sealing member between the outer and inner plates. 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.

Sheet 1
Sheet 1
Sheet 2
Sheet 2
Sheet 3
Sheet 3
Sheet 4
Sheet 4

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-preferred sealing member, which is larger than the inner plate, is retained between the outer and inner plates by a threaded stud and an associated nut. The tightening of nut on the threaded stud compresses the sealing member between the outer and inner plates. 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.

[0004]Sheet 4.

Publication information

Plain textMarkdownManifestIntegrity record

Citation

OpenTechnical Publication OT-2026-000003431, “Vacuum cup construction,” published September 15, 2026 at 20:26:36 UTC, https://opentechnical.org/p/OT-2026-000003431.

To cite specific content, add the paragraph or figure numbers.

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.