Coupling for pipes and fittings
US4215883A · kind A · utility
7Cited by
9References
5Claims
0Family size
Inventor
Key dates
| Filing date | Apr 11, 1979 |
| Grant date | Aug 5, 1980 |
| Priority date | — |
| Expiry date | Apr 11, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L21/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This invention is a ridged pipe coupling so shaped as to allow the same to be tensioned down tightly on a pipe or fitting regardless of slight irregularities or size variations. Th coupling also has provision for use in conjunction with both plain fittings, fittings having a bead, or a combination of the two. A plurality of different types of gaskets can be used with the present invention and the coupling bolts can be either threaded into the coupling itself or used in conjunction with standard bolt and nut type fasteners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.