---
publication_id: "OT-2026-000003476"
title: "Vacuum cup construction"
published_at: "2026-09-15T20:32:24.619918Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000003476"
categories:
  - "robotics-automation/robot-architectures"
keywords:
  - "b25j15/0616"
  - "b25j15/0616"
  - "b25j15/06"
  - "b65g47/91"
  - "b65g47/91"
  - "b65g47/91"
---

# Vacuum cup construction

## 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.