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| Number | Title | Issue Date |
| 6454057 | Brake cylinder A brake cylinder device with an effective adjustment bolt processing and with an improved air bleeding effect, wherein an adjustment bolt (40) as a component of an automatic shoe clearance adjustment mechanism, wherein an external thread stem (40a) makes ... | 09/24/2002 |
| 6155385 | Vehicle brake systems In a vehicle brake system a wedge is provided between the brake pedal and the pushrod which operates the master cylinder. Movement of the wedge is controlled by a control unit by means of a solenoid, when the control unit anticipates that the brakes may b... | 12/05/2000 |
| 5996744 | Shoe gap adjusting device for drum brake A shoe gap adjusting device includes a piston for pressing a brake shoe through a piston head, having a projecting end part with a boot cover for protecting an elastic boot that seals an end part of a cylinder body. A shoe gap adjusting ring is fitted on ... | 12/07/1999 |
| 5806635 | Friction brake system for a vehicle A brake system includes a pair of brake shoes and a wheel cylinder actuating the brake shoes such that the brake shoes contact a drum to apply braking action thereto. The wheel cylinder includes a housing, a first pair of oppositely facing pistons dispose... | 09/15/1998 |
| 5497859 | Hydraulic slack adjuster A hydraulic brake actuator which includes a cylinder, two pistons which are in the cylinder and which are movable apart by hydraulic pressure in the cylinder, a toothed rod which is engaged with one piston and which is movable to a limited extent axially ... | 03/12/1996 |
| 5435419 | Drum brake wear adjustor with eccentric roller and pawl assembly The present invention relates to a cam-operated, self-adjusting brakeshoe adjustor that is utilized in heavy duty air braking vehicles that employ single and/or multiple-web brakeshoes. The brakeshoe adjustor includes a roller assembly, a cylindrical roll... | 07/25/1995 |
| 5404971 | Adjuster releasing apparatus in drum brake An adjuster releasing apparatus for a drum brake in which an adjuster lever is pushed up by a pin-shaped member inserted from an opening of a backing plate, a stopper for limiting the movement amount of push-up of the adjuster lever in the state where the... | 04/11/1995 |
| 5400879 | Drum brake wheel cylinder with internal automatic adjustment The drum brake wheel cylinder (20) comprises a longitudinal through bore (16) having therein a pair of opposed pistons (22, 24) with each piston (22, 24) engaging a respective web (12, 14) of an adjacent drum brake shoe. A first piston (22) includes a lon... | 03/28/1995 |
| 5316115 | Brake actuator A brake actuator has a housing containing tappets operable by a cam to apply brake shoes against a rotary brake drum. The housing defines a cavity to which lubricant is admitted. A flexible element which is not compressed at the maximum positive system lu... | 05/31/1994 |
| 5246091 | Drum brake wheel cylinder with internal adjuster A wheel cylinder has a body, pistons, boots and seals. A screw assembly positioned between the two pistons holds the pistons apart to maintain the specified clearance between the brake linings and the brake drum while the brake is released. If a predeterm... | 09/21/1993 |
| 5195617 | Brake linkage self-adjustment mechanism A self-adjustment mechanism for a brake system includes a first sprag clutch seated in a support. An eccentric serves as an inner race for the first sprag clutch and as an outer race for a second sprag clutch. A timing assembly serves as an inner race for... | 03/23/1993 |
| 5193653 | Mechanically actuated brake with automatic adjustment The mechanically actuated brake (10) comprises a laterally movable sleeve housing (22) which is attached by slots (24) and connections (26) with the support plate (28). A mechanical actuator and adjuster mechanism (40) has parts (42, 48) received within a... | 03/16/1993 |
| 5085296 | Mechanically actuated brake with automatic adjustment The mechanically actuated brake (10) comprises a laterally movable sleeve housing (22) which is attached by way of slots (24) and connections (26) with the support plate (28). A mechanical actuator and adjuster mechanism (40) has parts (42, 48) received w... | 02/04/1992 |
| 5080202 | Wheel cylinder The invention relates to a wheel cylinder for a drum brake, comprising a body (2) provided with a longitudinal bore, two pistons (4,6) sliding in opposite directions outwards in the bore under the action of a pressurized fluid introduced between the pisto... | 01/14/1992 |
| 5069316 | Brake actuator with adjuster A brake actuator has a force applying device actuated by a rotary actuator shaft and arranged to separate opposed tappets to actuate braking elements. Each tappet includes a pair of threadedly engaged members which are relatively rotatable to enable the l... | 12/03/1991 |
| 4919237 | Automatic adjuster releasing apparatus for drum brake An automatic adjuster releasing apparatus characterized by the provision of a support member fixedly mounted on the wheel cylinder body; pin member slidably supported by the support member and having one end portion extending from an opening formed on the... | 04/24/1990 |
| 4903800 | Self-adjusting drum brake In a drum brake provided with an automatic adjustment device (40c, 40d) effecting the elongation of a spacer interposed between the shoes (12, 14) in the proximity of the brake motor (22), a device (46, 34) makes it possible to neutralize the adjustment d... | 02/27/1990 |
| 4887697 | Brake actuator A wedge and roller brake actuator comprises a wedge disposed between opposed tappets with interposed rollers acting to transmit thrust from the wedge to the tappets for brake actuation, a fixed inclined surface engaged by one roller to restrain the wedge ... | 12/19/1989 |
| 4867281 | Self-adjusting brake actuator A self-adjusting actuator is disclosed that utilizes a hydraulic system for adding necessary brake fluid to move brake actuating pistons sufficiently to bring brake linings into contact with a brake drum, regardless of how much wear has taken place on the... | 09/19/1989 |
| 4852702 | Automatic adjuster for operation gap of brake An automatic adjuster for the operation gap of a brake, comprising a piston slidably fitted in a cylinder, an adjusting nut supported in contact with the outer end of the piston the adjusting nut being rotatable relative to the piston, an unrotatable adju... | 08/01/1989 |
| 4838390 | Automatic adjuster for a vehicle shoe-drum brake An automatic adjuster comprises a transmission member, suitably a crown wheel, and thrust assemblies, of which the effective lengths are adjustable to adjust the spacing between a pair of shoe-ends, and the crown wheel is coupled to a brake-applying cam t... | 06/13/1989 |
| 4815571 | Automatic adjuster An automatic brake adjuster has a strut composed of two parts between which there is a non-reversible threaded connection, relative rotation between the parts to vary the strut length being controlled by a clutch ring urged by a spring into clutching enga... | 03/28/1989 |
| 4811821 | Compact drum brake adjuster An automatic adjusting mechanism for a drum-type brake including a pair of slidably supported tappets for actuating the brake. The tappets are comprised of two threadably connected components which effect adjustment for wear upon relative rotation of the ... | 03/14/1989 |
| 4795006 | Hydraulically-operated actuator assemblies for vehicle brakes An actuator assembly includes first and second components which are movable away from each other to initiate application of a brake, upon pressurization of a pressure space between the components. An automatic adjuster assembly co-operating with the compo... | 01/03/1989 |
| 4792021 | Self-compensating device for a drum brake An improved self-compensating device for a drum brake of the type including a first member and a second member which together define a hydraulic chamber in a wheel cylinder, said first and second members being slidably but non-rotatably arranged relative ... | 12/20/1988 |
| 4787484 | Electromagnetically operated friction brake having automatic adjustment mechanism A brake comprises a base on which a pair of brake shoes are mounted, springs to resiliently bias the brake shoes into engagement with a drum which is fixed relative to a rotatable member to be braked, to apply the brake, an electromagnet to move the brake... | 11/29/1988 |
| 4770278 | Automatic adjustment device for internal shoe brakes An automatic adjustment device for internal shoe brakes, comprises a fixed housing disposed interiorly of a rotating brake drum, a slidably guided, non-rotatable, axially displaceable pressure element disposed in the housing and operated mechanically or b... | 09/13/1988 |
| 4702352 | Automatic adjuster An automatic adjuster includes a two part strut interconnected by a non-reversible thread so that extension of the strut under the influence of an adjuster device is effected by relative rotation between the two parts. The adjuster device includes a spigo... | 10/27/1987 |
| 4638893 | Means for transmitting brake force In a key activated vehicle drum brake telescopically displaceable variable force transmitting elements have been arranged between the key and the brake shoes of the brake. In order to provide a design counteracting axial displacement of the brake shoes th... | 01/27/1987 |
| 4637499 | Expander mechanism for an internal shoe drum brake An expanding mechanism for an interior shoe drum brake, such as a simplex "expander-wedge" type brake, comprises a cylinder housing affixed to a brake support, coaxially mounted pressure pistons slidable in the housing, expander members adjoining the resp... | 01/20/1987 |
| 4611691 | Hydraulic actuator assemblies for vehicle brakes An hydraulic actuator comprising a pair of oppositely acting hydraulic pistons working in a bore incorporates an automatic slack adjuster assembly which is housed in aligned bores in the pistons and acts as a strut to determine the relative retracted posi... | 09/16/1986 |
| 4603762 | Wheel cylinder having an automatic clearance adjusting mechanism A wheel cylinder for drum brakes having a mechanism for automatically adjusting the excess clearance formed between the lining on each brake shoe and the inner surface of the brake drum due to the wear of the lining. Excess clearance may be produced in di... | 08/05/1986 |
| 4585095 | Actuating device for a disc brake The subject of the invention is an actuating device for a disc brake for motor vehicles or trailers having opposed brake jaws 5, 8 on both sides of a brake disc, which cooperates with a traction and a pressure rod, while between the traction rod 6 and the... | 04/29/1986 |
| 4553646 | Brake motor with automatic adjustment Brake motor with automatic adjustment, comprising a body (20) which incorporates a groove (62). A piston is mounted in this body and has a pivot (48) which guides the piston in the groove. A pawl (46) mounted at one end on the pivot (48) and applied elast... | 11/19/1985 |
| 4548301 | Negative acting disc brake A negative acting disc brake provided with arrangement for automatically adjusting the clearance between the brake pads and the disc caused by abrasion of the brake pads. The entire amount of abrasion is absorbed not by a single release of brake but by se... | 10/22/1985 |
| 4546861 | Automatic adjuster for shoe-drum brake An automatic adjuster includes a pair of threadedly interengaged parts forming an extensible strut and a restraint device in the form of a washer locked to a head on one part and having a projecting tongue which, when the parts are near to their limit of ... | 10/15/1985 |
| 4537293 | Hydraulic cylinder assemblies A drum brake hydraulic wheel cylinder assembly comprises a pair of piston assemblies and an abutment member. The piston assemblies are of the kind comprising an adjustable variable length tappet assembly having interengaged screw-threaded components. To e... | 08/27/1985 |
| 4530424 | Automatic braking-gap adjuster system for hydraulic brake An automatic braking-gap adjuster system for hydraulic brakes having an adjusting nut and bolt combination wherein the nut engages threadedly the bolt, the combination being disposed in the hydraulic chamber defined by a piston slidably inserted through a... | 07/23/1985 |
| 4456101 | Vehicular brake operating system A vehicular brake operating system which comprises a wheel brake, an operating member, a control wire connecting the wheel brake and the operating member and including an outer wire and an inner wire fitted in the former, and an adjusting device disposed ... | 06/26/1984 |
| 4445600 | Self adjusting release mechanism for clutch A self adjusting release mechanism for disengaging a heavy duty friction clutch that is equipped with a clutch brake. As wear occurs on the facing of the clutch disc, portions of the clutch release mechanism are repositioned to compensate for wear without... | 05/01/1984 |
