Coupling
US4838491A · kind A · utility
7Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Sep 30, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L47/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupling between parts subject to differential expansion and contraction comprising first and second sealing abutments and an intervening constraint on relative movement whereby differential movements provide a self-compensating tightening and loosening of the sealing abutments. The coupling is especially useful for joining tubular parts such as caps or spray nozzles in containers for agricultural chemicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.