P

Inventor

CRUMB DONALD A

US22 patents
⚠️ This page may combine multiple inventors who share the name “CRUMB DONALD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ALLIED SIGNAL INC

18 patents
US4785847ANov 22, 1988

Unitary poppet valve assembly for a proportioning valve

ALLIED SIGNAL INC35 citations92
US5016442AMay 21, 1991

Master cylinder with fluid level and pressure failure detector

ALLIED SIGNAL INC21 citations82
US5329769AJul 19, 1994

Master cylinder and brake booster arrangement for a brake system

ALLIED SIGNAL INC11 citations73
US5214917AJun 1, 1993

Center valve master cylinder with self-adjusting compensation center valve

ALLIED SIGNAL INC11 citations73
US5207062AMay 4, 1993

Center valve master cylinder with adjustable caged primary spring

ALLIED SIGNAL INC12 citations73
US5161375ANov 10, 1992

Spring caging for a master cylinder

ALLIED SIGNAL INC18 citations73
US5136847AAug 11, 1992

Cap for a reservoir of a master cylinder

ALLIED SIGNAL INC7 citations73
US4815292AMar 28, 1989

Multi-part primary pressure-balanced proportioning valve with brake pressure failure switch

ALLIED SIGNAL INC8 citations70
US5046313ASep 10, 1991

Master cylinder with fluid level and pressure failure detection

ALLIED SIGNAL INC9 citations69
US5279125AJan 18, 1994

Master cylinder with caging means to secure return spring limiting stud

ALLIED SIGNAL INC12 citations68
US4843820AJul 4, 1989

Brake system in-line fast fill valve

ALLIED SIGNAL INC2 citations63
US5144976ASep 8, 1992

Vented screw-in proportioning valve

ALLIED SIGNAL INC6 citations62
US4908522AMar 13, 1990

Pressure-balanced proportioning valve with vent-controlled bypass

ALLIED SIGNAL INC4 citations62
US4903387AFeb 27, 1990

Method for making a proportioning valve having a unitary poppet valve assembly

ALLIED SIGNAL INC2 citations62
US4821519AApr 18, 1989

Primary pressure-balanced proportioning valve

ALLIED SIGNAL INC2 citations62
US4929033AMay 29, 1990

Primary and secondary pressure-balanced proportioning valve

ALLIED SIGNAL INC2 citations60
US5313796AMay 24, 1994

Remote compensation valves for a master cylinder in a brake system

ALLIED SIGNAL INC1 citations51
US4995676AFeb 26, 1991

Positioning ring for a hydraulically operated warning device

ALLIED SIGNAL INC0 citations41

ALLIED CORP

2 patents

BOSCH SYST FREINAGE

1 patent

BENDIX CORP

1 patent