Tight coupling device for two rigid, fixed pipes
US4767136A · kind A · utility
38Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 18, 1987 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Jun 18, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L25/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The device for coupling two pipes comprises a variable length assembly formed from two tubular parts, whereof the internal diameter corresponds to the internal diameter of the pipes. The tight coupling of this assembly to the ends of the pipes is brought about by compressing O-rings between a planar surface and a spherical surface by means of two nuts. The two tubular parts are then tightly joined by actuating a nut compressing a third O-ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.