Double metal seal fitting
US8468849B2 · kind B2 · utility
7Cited by
21References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2010 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jan 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7737
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multi-port device such as a thermal expansion valve for an air conditioning system includes a seal structure with a first seal portion and a second seal portion. The first seal portion includes a metal material adapted to provide a primary seal. The second seal portion is attached to a free edge of the first seal portion and adapted to provide a secondary seal. The multi-port device with seal structure militates against leakage during operation of the air conditioning system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.