Coupling with teflon seat
US5131695A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Mar 13, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S285/91
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A reusable union coupling is provided, particularly for refrigeration service, comprising two fittings, a body and an adapter, which are attached to the two conduits or other components to be joined. A variable washer seal cavity is created when the body and adapter are mated, within which a teflon washer is disposed. Means are provided for moveably connecting the body to the adapter and selectively compressing the washer within the cavity, in particular a rotatable collar is provided which engages the adapter and threads onto the body. Means are also provided to prevent extrusions, displacement, and over-compression of the washer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.