07748380 is referenced by 9 patents and cites 44 patents.

A combined air-supplying/air-purifying breathing system that includes a self-contained breathing apparatus, a facepiece for delivering breathable air from the self-contained breathing apparatus to a user, and a powered air-purifying respirator having at least one filter and a blower and having an output connected by a hose assembly to the facepiece. A control interface operationally connects the self-contained breathing apparatus to the powered air-purifying respirator. The self-contained breathing apparatus includes a pressure vessel, a cylinder valve assembly and a pressure reducer, all carried by a back frame, and the powered air-purifying respirator is adapted to be mounted on, and carried by, the back frame, by coupling the back frame and the respirator together at respective attachment points.

Title
Combined air-supplying/air-purifying system
Application Number
11/100051
Publication Number
7748380 (B1)
Application Date
April 6, 2005
Publication Date
July 6, 2010
Inventor
Robert Daniel Williams
Monroe
NC, US
Judge W Morgan III
Oakboro
NC, US
William Eugene Parson
Indian Trail
NC, US
Jerry Allen Phifer
Peachland
NC, US
Agent
Small Patent Law Group
Dean Small
Wyatt Pratt
Assignee
STI Licensing Corporation
OH, US
IPC
A62B 23/02
A62B 19/00
A62B 7/10
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