Breathing apparatus
US4214580A · kind A · utility
18Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 1978 |
| Grant date | Jul 29, 1980 |
| Priority date | — |
| Expiry date | May 1, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7781
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The venturi action in a demand regulator is controlled by moving a baffle across an air inlet into the regulator chamber as the inlet valve is opened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.