0108560-A1 is referenced by 8 patents and cites 12 patents.

A powered air supply unit for a respirator for connection by a flexible hose to a facepiece or headpiece for supplying air thereto, comprises a generally rectangular housing (1) comprising side walls (2) closed at one end by an end wall (5) and at the other end defining an opening (3) with a stepped periphery in which one or more units (25, 27) of filter materials are located. A removable protective cover (4) retains the filter unit or units in opening (3) and is apertured to permit air to flow to opening (3). Within the housing, a centrifugal pump (13) with a d.c. motor (14) connected directly to the shaft (18) of the pump are provided side-by-side with a battery housing (15) for batteries to drive the motor.; The inlet (21) of the pump (13) opens within the housing and the outlet (20) of the pump is connected directly to an outlet (6) in one side wall of the housing (1) and which is intended for connection to the flexible hose.

Title
Powered air supply units for respirators.
Application Number
EP19830306532 19831027
Publication Number
0108560 (A1)
Application Date
October 27, 1983
Publication Date
May 16, 1984
Inventor
Davies Stephen James
GB
Easton David Buckley
GB
Connor Richard Keven
GB
O& 039
Odell Raymond
GB
Assignee
Racal Safety
GB
IPC
A62B 07/10
A62B 18/00
A62B 07/00
A62B 07/10
A62B 18/04
A62B 18/00
A62B 07/00
A62B 07/10
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