Robert Frank Gaiser

46048707, Aug 12, 1986

Dec 3, 1984

6/677271

Lloyd G. Bach - South Bend IN
Lawrence R. Myers - South Bend IN
Robert F. Gaiser - Stevensville MI

Allied Corporation - Morristown NJ

B60T 1320

60551

A brake booster (16) includes a pair of pistons (50, 56) and a valve assembly (74) operable to communicate fluid pressure to the pair of pistons (50, 56). An input assembly (90) moves in response to an input force to control the operation of the valve assembly (74). Movement of the valve assembly (74) allows fluid to be supplied to working chambers (52, 58). Resilient means (133, 135) acts on and holds pins (130, 132) against the pistons (50, 56). When the fluid pressure in the working chambers (52, 58) acting on the pins (130, 132) is sufficient to overcome the resilient means (133, 135) an increase in the fluid pressure in chamber (52, 58) moves the pins (130, 132) into engagement with the input assembly (90) to oppose movement of the input assembly (90) since a desired brake force has been generated.

48152927, Mar 28, 1989

Feb 18, 1988

7/160784

Robert F. Gaiser - Stevensville MI
Donald A. Crumb - Granger IN
William F. Dillon - South Bend IN

Allied-Signal Inc. - Morristown NJ

B60T 1120
B60T 1132
F15B 700

60534

The proportioning valve assembly may be screwed into a complementary-shaped opening in a master cylinder. The valve assembly includes a differential area piston biased by a spring toward the outlet which communicates with the rear brakes. The master cylinder includes a pair of passageways which communicate primary fluid pressure and secondary fluid pressure directly to the differential area piston of the proportioning valve assembly to displace the piston to a balanced position. If there is a failure of pressure in the primary brake circuit, the proportioning valve assembly actuates the differential area piston to permit fluid flow to bypass the piston and be communicated directly to the rear brakes of the vehicle. Upon failure, a differential area sleeve surrounding the piston moves to actuate an electrical failure warning switch.

45209111, Jun 4, 1985

Aug 23, 1982

6/410731

Robert F. Gaiser - Stevensville MI

Allied Corporation - Morristown NJ

B60K 4124

192 13A

A brake control device (16) includes a control member (70) cooperating with a housing (36) to partially define separate brake circuits. The control member is operable by an actuator (68) to close one way communication in the separate brake circuits via valves (86, 100) cooperating therewith.

46798641, Jul 14, 1987

Apr 11, 1986

6/850463

Lawrence R. Myers - South Bend IN
Lloyd G. Bach - South Bend IN
Robert F. Gaiser - Stevensville MI

Allied Corporation - Morristown NJ

B60T 828

303 6C

A proportioning valve assembly (10) in a housing (12) is pressure responsive to control the flow of fluid to a wheel brake cylinder. The proportioning valve (20) is connected to a channel (31) opening into a reservoir or fluid-containing chamber (13), a second valve (34) being disposed in the channel (31) and engaging at one end an inertia sensitive ball (40) located on a variable slope surface (17), and engaging a third valve (35) at the other end. The proportioning valve (20) includes a second piston (80) having a reduced diameter end (82) engaging a third piston (105) of enlarged diameter disposed in a portion of the channel (31), the channel (31) communicating by an opening (90) with the fluid-containing chamber (13). During initial brake application by the operator, the third valve (35) remains closed so that the third piston (105) does not move and prevents further movement of the second piston (80), thereby preventing higher braking pressure from being communicated to the wheel brake cylinder. Upon obtaining an initial level of deceleration, the inertia sensitive ball (40) moves along an initial low slope portion (39) of the surface (17) so that the third valve (35) opens and permits movement of the third piston (105) by the second piston (80) so that higher braking pressures are communicated to the wheel brake cylinder.

48215198, Apr 18, 1989

Jun 29, 1987

7/067514

Robert F. Gaiser - Stevensville MI
John E. Steer - South Bend IN
Donald A. Crumb - Granger IN

Allied-Signal Inc. - Morristown NJ

B60T 826

60591

The proportioning valve assembly (40, 140) may be screwed into a complementary-shaped opening in a master cylinder (10). The valve assembly (40, 140) includes a differential area piston (50, 150) biased by a spring (70, 170) toward the outlet (21, 121) which communicates with the rear brakes. The master cylinder (10) includes a pair of passageways (16, 18) which communicate primary fluid pressure and secondary fluid pressure directly to the differential area piston (50, 150) of the proportioning valve assembly (40, 140) to displace the piston (50, 150) to a balanced position. If there is a failure of pressure in the primary brake circuit, the proportioning valve assembly (40, 140) actuates the differential area piston (50, 150) to permit fluid flow to bypass the piston (50, 150) and be communicated directly to the rear brakes of the vehicle.

47187344, Jan 12, 1988

Nov 18, 1985

6/799219

Robert F. Gaiser - Stevensville MI

Allied Corporation - Morristown NJ

B60T 1704

303 24R

A proportioning valve assembly (10, 130) in a housing (12) is pressure responsive to control the flow of fluid to a wheel brake cylinder. The proportioning valve assembly (10, 130) includes a movable retainer (50) coupled with a differential piston (30) for movement therewith, a stationary retainer (70) mounted by the housing (12) and surrounding a second piston (80) having an enlarged diameter portion (88) that defines with an end (11, 16) of the housing (12) a chamber (90). The second piston (80) has a poppet (84) extending into an interior opening (54) of the movable retainer (50), the movable retainer (50) supporting a seal (56) disposed about the extension (82) of the second piston (80). The seal (56) is positioned for closing an opening (73) of the stationary retainer (70) through which the second piston (80) extends. The second piston (80) contains a poppet valve (99) which controls fluid flow through a passage (85) from one side of the second piston (80) to the other side, and the second piston (80) provides support for an inertia-sensitive object (110) which controls operation of the poppet valve (99).

43031463, Dec 1, 1981

Oct 1, 1979

6/080879

Robert F. Gaiser - Stevensville MI

The Bendix Corporation - Southfield MI

F16D 6574

188 718

A disc brake assembly includes a caliper movable relative to a rotor for the purpose of urging a pair of friction elements into engagement with the rotor. A housing of the caliper defines a stepped bore for receiving a piston which cooperates with the housing to form a pressure chamber within the stepped bore. A plate within the pressure chamber separate the pressure chamber into a pair of cavities and a valve assembly controls communication of fluid pressure to one of the pair of cavities and to the other cavity. During initial fluid pressure build-up in the caliper, the valve assembly remains in a first position to communicate fluid pressure to one of the cavities so that the plate and piston advance to a braking position at a first rate of speed. After the initial fluid pressure build-up when the fluid pressure reaches a predetermined value, the valve assembly is movable to a second position to communicate fluid pressure to the other cavity so that the piston is advanced at a second rate of speed less than the first rate of speed.

44648995, Aug 14, 1984

Apr 23, 1982

6/371154

Lawrence R. Myers - South Bend IN
Robert F. Gaiser - Stevensville MI
Larry G. Lohraff - Berrien Springs MI
Lloyd G. Bach - South Bend IN

The Bendix Corporation - Southfield MI

B60T 1312

605471

A brake booster (16) includes a housing (26) with a plurality of parallel bores (38, 40, 42). A first piston (50) is disposed in the bore (38), a second piston (56) is disposed in the bore (40) and a valve assembly (74) is disposed in the bore (42) to control communication of fluid pressure to a pair of working chambers (52, 58) within the bores (38, 40). A pair of connecting pins (130, 132) cooperate with a plunger (100) to transmit a reaction force to a vehicle operator.