Robert E. Gray

Person

Glen Mills, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Combination head-protective helmet and communications system
- Patent number 5,678,205
- Issue date Oct 14, 1997
- CairnsAir, Inc.
- Robert E. Gray
- A42 - HEADWEAR
Information Patent Grant
Combination head-protective helmet & communications system
- Patent number 5,404,577
- Issue date Apr 4, 1995
- Cairns & Brother Inc.
- Lawrence H. Zuckerman
- A42 - HEADWEAR
Information Patent Grant
Positive pressure breathing assembly and demand regulator therefor
- Patent number 5,271,390
- Issue date Dec 21, 1993
- Cairns & Brother Inc.
- Robert E. Gray
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Assembly for monitoring helmet thermal conditions
- Patent number 5,200,736
- Issue date Apr 6, 1993
- Cairns & Brother Inc.
- Christopher E. Coombs
- A42 - HEADWEAR
Information Patent Grant
Pressure monitoring device for self-contained breathing apparatus
- Patent number 5,097,826
- Issue date Mar 24, 1992
- Cairns & Brother, Inc.
- Robert E. Gray
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Positive pressure breathing assembly and demand regulator therefor
- Patent number 5,000,174
- Issue date Mar 19, 1991
- Cairns & Brother Inc.
- Robert E. Gray
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Closed-circuit positive pressure breathing apparatus with pneumatic...
- Patent number 4,928,685
- Issue date May 29, 1990
- Cairns & Brother Inc.
- Robert E. Gray
- A62 - LIFE-SAVING FIRE-FIGHTING

Robert E. Gray

Person

Patents Grantslast 30 patents

Combination head-protective helmet and communications system

Combination head-protective helmet & communications system

Positive pressure breathing assembly and demand regulator therefor

Assembly for monitoring helmet thermal conditions

Pressure monitoring device for self-contained breathing apparatus

Positive pressure breathing assembly and demand regulator therefor

Closed-circuit positive pressure breathing apparatus with pneumatic...