Inventor
LEVRAI ROLAND
FR40 patents
⚠️ This page may combine multiple inventors who share the name “LEVRAI ROLAND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BENDIX EUROP SERVICES TECH
12 patentsUS5172964ADec 22, 1992
Vacuum booster with electromagnetic valve control
BENDIX EUROP SERVICES TECH35 citations92
US5425302AJun 20, 1995
Pneumatic booster
BENDIX EUROP SERVICES TECH35 citations91
US5493949AFeb 27, 1996
Pneumatic uphill anti-runback device
BENDIX EUROP SERVICES TECH7 citations74
US5176063AJan 5, 1993
Brake-booster with adjustable jump and process for adjusting the jump
BENDIX EUROP SERVICES TECH12 citations74
US4984853AJan 15, 1991
Braking corrector governed by the height of a vehicle
BENDIX EUROP SERVICES TECH2 citations63
US5205621AApr 27, 1993
Brake-pressure reduction means for a motor vehicle
BENDIX EUROP SERVICES TECH3 citations62
US5154492AOct 13, 1992
Load sensing proportioning valve
BENDIX EUROP SERVICES TECH5 citations62
US5226693AJul 13, 1993
Hydraulic assembly for conversion of a pressure of a brake fluid
BENDIX EUROP SERVICES TECH1 citations52
US5028094AJul 2, 1991
Brake regulator
BENDIX EUROP SERVICES TECH1 citations52
US5186523AFeb 16, 1993
Brake compensator for a motor vehicle
BENDIX EUROP SERVICES TECH0 citations42
US5094510AMar 10, 1992
Load sensing supporting member for a suspension spring
BENDIX EUROP SERVICES TECH0 citations42
US5176434AJan 5, 1993
Brake pressure proportioning valve with an additional valve
BENDIX EUROP SERVICES TECH0 citations31
BENDIX FRANCE
9 patentsUS4824180AApr 25, 1989
Brake corrector subject to the load of a vehicle
BENDIX FRANCE106 citations96
US5046314ASep 10, 1991
Control device of a brake booster, applying additional force when a pressure difference between a front and rear booster chamber exceeds a pre-determined threshold
BENDIX FRANCE7 citations74
US4996843AMar 5, 1991
Tandem hydraulic pressure transmitter device
BENDIX FRANCE8 citations74
US4671168AJun 9, 1987
Single actuator tandem brake pressure control valve
BENDIX FRANCE7 citations72
US4978820ADec 18, 1990
Device for detecting the position of a member movable inside a stationary member
BENDIX FRANCE7 citations69
US4798127AJan 17, 1989
Tandem brake pressure control valve with pressure-failure-compensating parallel piston
BENDIX FRANCE3 citations61
US4673223AJun 16, 1987
Deceleration responsive braking corrector
BENDIX FRANCE1 citations52
US4828330AMay 9, 1989
Brake corrector subject to the load of a vehicle
BENDIX FRANCE1 citations50
US5005914AApr 9, 1991
Dual brake compensator
BENDIX FRANCE0 citations49
DBA SA
9 patentsUS4630711ADec 23, 1986
Device for lubricating a geartrain
DBA SA103 citations95
US4490102ADec 25, 1984
Volumetric screw compressor
DBA SA47 citations92
US4588363AMay 13, 1986
Volumetric screw compressor
DBA SA7 citations74
US4286504ASep 1, 1981
Drum brake actuating device
DBA SA13 citations74
US4292883AOct 6, 1981
Wheel cylinder
DBA SA8 citations72
US4709550ADec 1, 1987
Hydraulic assistance device
DBA SA7 citations71
US4651528AMar 24, 1987
Hydraulic amplifier for braking system
DBA SA6 citations63
US4484671ANov 27, 1984
Pressure generator unit for hydraulic braking system
DBA SA3 citations63
US4445263AMay 1, 1984
Method of preforming a booster casing element with its reinforcement
DBA SA1 citations52
BOSCH SYST FREINAGE
4 patentsUS6116141ASep 12, 2000
Pneumatic brake booster with control chamber
BOSCH SYST FREINAGE5 citations63
US6109163AAug 29, 2000
Pneumatic servomotor with dynamically variable mechanical reaction
BOSCH SYST FREINAGE2 citations63
US5848827ADec 15, 1998
Braking assistance pneumatic servomotor with improved valve
BOSCH SYST FREINAGE6 citations63
US5878577AMar 9, 1999
Pneumatic brake servo with an improved valve
BOSCH SYST FREINAGE2 citations62
BOSCH GMBH ROBERT
3 patentsUS6192685B1Feb 27, 2001
Master cylinder for motor vehicle electro-hydraulic braking installation
BOSCH GMBH ROBERT54 citations92
US6186042B1Feb 13, 2001
Pneumatic booster with floating reaction disc and dynamically cancellable reaction
BOSCH GMBH ROBERT11 citations70
US7077051B1Jul 18, 2006
Self-boosting pneumatic booster using a pivoting key
BOSCH GMBH ROBERT0 citations40