Vacuum fittings and rubber band seal
US4933044A · kind A · utility
0Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Dec 23, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1744
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention disclosed herein is a combination of hardware fittings and an elastomeric peripheral seal which are used to bond two halves of a single beam together. The beam has transverse openings extending through its width when its halves are joined. The fittings cover opposite ends of each beam opening and essentially convert each into a vacuum chamber. The peripheral seal surrounds the interface between the beam's halves. A vacuum is drawn through both the fittings and the peripheral seal, thus drawing a vacuum along the interface of the halves as they are bonded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.