Combined pressure reducing and charging valve
US6105632A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Nov 12, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C2011/2218
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pressure reducing and filling valve combination for use in conjunction with gas bottles, particularly gas bottles that contain breathing gas under high pressure for use by underwater divers, firemen, etc. The valve includes a valve chamber and a spring-loaded valve slide movable in the valve chamber for reducing the pressure with the aid of the spring when gas is taken from the bottle for delivery to a part of the chamber. The pressure in this chamber part is held substantially constant at a level determined by the spring force. An external multi-purpose valve connector is adapted to connect the valve chamber to external equipment when gas is consumed. When filling the bottle with gas under high pressure, the valve delivers gas to the bottle via the same passageway as that through which gas was delivered to the valve chamber in response to gas consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.