Safety cap for fluid valve
US5597010A · kind A · utility
9Cited by
5References
14Claims
0Family size
Inventors
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7062
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A safety cap for preventing unauthorized access to a refrigerant valve is described. The safety cap has a locking piece that attaches to the valve's threaded portion and covers the valve's access port. A collar surrounds the locking piece and is mechanically decoupled therefrom, so that motion is not communicated therebetween. The locking piece has a topographic feature such as a number of asymmetrically placed holes. A special releasing tool that has complementary protrusions for interfacing with the holes is required in order to decouple the locking piece from the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.