EP 0534741 A1 19930331 - Breathing regulator having air injector feature.
Title (en)
Breathing regulator having air injector feature.
Title (de)
Atemregulator mit Luftinjektion.
Title (fr)
Régulateur respiratoire à injection d'air.
Publication
Application
Priority
US 76605491 A 19910926
Abstract (en)
A breathing system regulator (10) for a demand breathing system has adjusting apparatus (50, 52, 54) for adjusting the demand required to open the air inlet valve (32) to permit the user to increase or decrease the tension on the biasing spring (40) urging the valve (32) closed, and to decrease or increase the cushioning effect of a stream of air urging the valve closed. Adjusting apparatus is provided in which an air injector device (10) is adjustably positioned to direct a flow of air between positions for adjusting the pressure at the inlet valve side of the regulator diaphragm (18) to control the amount of breathing effort required of the user to open the air inlet valve (32). <IMAGE>
IPC 1-7
IPC 8 full level
B63C 11/16 (2006.01); B63C 11/22 (2006.01)
CPC (source: EP)
B63C 11/2227 (2013.01)
Citation (search report)
- [X] US 3783891 A 19740108 - CHRISTIANSON R
- [Y] WO 9014990 A1 19901213 - PREECE T D & CO PTY LTD [AU]
- [A] FR 2367655 A1 19780512 - SPIROTECH IND COMMERC [FR]
Designated contracting state (EPC)
FR GB IT
DOCDB simple family (publication)
EP 0534741 A1 19930331; EP 0534741 B1 19961113; JP 2764779 B2 19980611; JP H05201384 A 19930810
DOCDB simple family (application)
EP 92308679 A 19920924; JP 29758992 A 19920926