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 patentsUS4785847ANov 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