EP 0437948 A1 19910724 - Underwater breathing apparatus.
Title (en)
Underwater breathing apparatus.
Title (de)
Unterwasseratmungsgerät.
Title (fr)
Dispositif sous-marin respiratoire.
Publication
Application
Priority
US 45212989 A 19891215
Abstract (en)
An underwater breathing apparatus is provided for delivering air to a submerged diver. A manual pump (17) supplies air under pressure to a reservoir bag (12) for delivery to a diver through an air hose (24,29,31). Alternatively, the reservoir bag can be further connected by an air hose to a floatable variable-pressure reservoir bag (28) that delivers air through an air hose (29,31) to a submerged diver. In order to constantly maintain the air pressure in the reservoir bag in a preselected range, a pressure gauge (40) is provided for the pump operator, who then pumps selectively to maintain the proper air pressure. The diver wears a breathing means having a flow restrictor/shut-off valve, a one-way inlet valve (32), and a one-way exhaust valve (34) for exhalation. Additionally, an electric pump may be used either to replace the manual pump or as a back-up thereto. <IMAGE>
IPC 1-7
IPC 8 full level
B63C 11/14 (2006.01); B63C 11/20 (2006.01)
CPC (source: EP)
B63C 11/14 (2013.01); B63C 11/202 (2013.01); B63C 2011/2272 (2013.01)
Citation (search report)
- [X] FR 2593136 A1 19870724 - BOUCHERON PAUL [FR]
- [X] US 3050055 A 19620821 - VAUTIN ROBERT G
- [A] FR 2119265 A5 19720804 - INST FRANCAIS DU PETROLE
- [A] FR 16281 E 19121224 - MAURICE FERNEZ [FR]
- [AD] US 4674493 A 19870623 - MITCHELL DAN E [US]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 90313674 A 19901214