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| Number | Title | Issue Date |
| 7350827 | Cam expansion ring assembly An expansion ring assembly and method for sealingly installing a gasket within an opening in a wall of a structure. The expansion ring assembly includes an expansion ring having first and second adjacent end portions, and first and second cam members are rotatably c... | 04/01/2008 |
| 7270220 | Thermo clip in an adjustor mechanism for a drum brake An adjuster arrangement for maintaining first and second brake shoes of a brake between a minimum and a maximum clearance with respect to a drum. The adjuster arrangement has a pawl located on a pivot pin on the first brake shoe and an arm that engages a star wheel ... | 09/18/2007 |
| 7070025 | Drum brake apparatus An automatic clearance adjusting device 10 that automatically adjusts the position of brake shoes (3, 4) based on the wear includes an adjuster gear that is rotatably depending on the amount of how much the brake shoes are parted from each other, a cam... | 07/04/2006 |
| 6585087 | Control mechanism for use in magnetically operated wheels An improved control mechanism for use in a magnetically operated wheel. The mechanism includes an outer cover, an inner housing, a pair of compression springs, two small supporting wheels, two linkage pieces, an externally connected pull cord control moun... | 07/01/2003 |
| 6568513 | Drum brake An adjustment arrangement for a non-servo drum brake having a hydraulic actuator that engages a first web of a first brake shoe and a second web of a second brake shoe. The hydraulic actuator on receiving a hydraulic input develops an actuation force for ... | 05/27/2003 |
| 6460660 | Parking brake for drum type brakes with electronic lining wear sensor and adjuster A parking brake assembly for an automotive drum brake is provided. The parking brake assembly replaces a conventional mechanical strut with an electronic strut actuator subassembly that provides for parking brake engagement and disengagement, sensing of b... | 10/08/2002 |
| 6367367 | Brake cylinder device A brake cylinder device with a built-in automatic shoe clearance adjustment device which prevents a chance of misassembly, loosing, or omitting the spacer. The brake cylinder device includes an adjustment bolt screwed into a pair of pistons symmetrically ... | 04/09/2002 |
| 6142271 | Servo friction brake A servo friction brake which includes a carrier, and at least one friction lining which is supported on the carrier and interacts with at least one friction surface, and at least one device for actuating the friction lining. In order to considerably reduc... | 11/07/2000 |
| 6095296 | Duo-servo type drum brake device In order to indirectly open brake shoes (3, 4) through a link (19) pivoted on one of the brake shoes (3) at a location of a brake shoe holding mechanism (5), and to operate the brake shoes (3, 4) away from a shoe gap adjuster (11) while one of the brake s... | 08/01/2000 |
| 6050371 | Unit for a drum brake and drum brake equipped with same A structural unit for a drum brake comprises at least one brake shoe (12) and an adjusting device (32) which comprises an adjusting strut (34), a ratchet-detent wheel mechanism and an adjusting lever (40) which comprises the ratchet (52). The brake shoe (... | 04/18/2000 |
| 5752586 | Brake shoe wear and adjuster malfunction indicating device for drum brake assembly An improved drum brake assembly wherein the operating condition of the brake shoes and the automatic brake adjusting mechanism can be determined without removing any component from the associated vehicle includes a backing plate, a brake drum, and first a... | 05/19/1998 |
| 5718308 | Automatic brake-adjusting device An automatic brake-adjusting device, and particularly an automatic brake-adjusting device to be used in a trailer, and the device comprises an outer case, a ratchet, a pawl, a pulling bar, a transmission device and an outer lid; the ratchet includes a plu... | 02/17/1998 |
| 5480010 | Drum brake adjuster A duo-servo drum brake (10) includes an application adjuster mechanism (50). The application adjuster mechanism (50) comprises a threaded member (51) anchored to one brake shoe end (34), a socket member (61) anchored to the other brake shoe end (32), an o... | 01/02/1996 |
| 5439079 | Auxiliary drum-brake device with improved automatic clearance adjustment This drum-brake device is equipped with an automatic clearance adjustment device comprising a click (12) actuating a toothed wheel (11) whose rotation gives rise to the lengthening of a spacer (9) disposed between two brake segments (1) and (2). The click... | 08/08/1995 |
| 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 |
| 5388672 | Anti-roll-back device A device (10) allows forward (clockwise) rotation of a shaft (12) but prevents reverse rotation unless disengaged. A loop (20) is attached at one end to a slide show (16), passes round a drum (14) on the shaft (12), around a first pin (24) and a second pi... | 02/14/1995 |
| 5246090 | Drum brake and wear adjuster therefor A drum brake comprising a drum; first and second brake shoes which carry friction lining material; at least one hydraulic actuator engaging the brake shoes for moving the friction lining material into contact with the drum on actuation thereof, a clearanc... | 09/21/1993 |
| 5158160 | Automatic adjusting apparatus for a duo-servo drum brake An automatic one-shot adjusting apparatus which is applicable both for mechanically and for hydraulically actuatable duo-servo drum, brakes and which includes two ratchets (6, 14) interacting through springs (11, 15) and is capable of adjusting only upon ... | 10/27/1992 |
| 5062504 | Drum brake assembly having parking brake actuator adjuster with automatic brake adjustment during the service braking mode of operation A drum brake assembly having an automatic adjuster which adjusts the brake shoes for wear as needed during the service braking mode of operation. A spreader bar positioned between the brake shoes is capable of being acted upon by a parking brake actuating... | 11/05/1991 |
| 5058713 | Hydraulic drum brake assembly In a hydraulic drum brake and parking brake assembly, when a hydraulic actuator is operated to engage an opposed pair of brake shoes with a brake drum after a predetermined amount of wear had occurred on the friction pads of the brake shoes, a torsion spr... | 10/22/1991 |
| 5000296 | Self-adjusting vehicle wheel drum brake with multiple pawl step In a preferred embodiment a self-adjusting vehicle wheel drum brake is provided having an adjuster strut with a threadably extending star wheel and an adjuster pawl mechanism having a dual step tip. The dual step tip allows the adjuster mechanism to move ... | 03/19/1991 |
| 4844212 | Mechanically actuated brake with automatic adjustment The mechanically actuated brake (10) with automatic adjustment comprises an integral support plate (20) having first (22) and second (24) axially extending support bars which position associated pairs of brake shoe ends (13, 15, 17, 19). The brake shoe en... | 07/04/1989 |
| 4825979 | Brake adjuster A brake adjuster for the automatic adjustment of vehicle brakes during the brake application stroke has a lever (13) which is connected to a brake cylinder (2) via a piston rod (1) and, via a slack adjuster (15), is connected to a cam shaft (4) with a bra... | 05/02/1989 |
| 4809826 | Drum brake with automatic adjustment The automatic adjustment of a drum brake is obtained by way of an adjusting lever (30) fitted to pivot on one (12) of the brake shoes when the wear of the friction linings (16) on the brake shoes (12) warrants it. This lever rests against a spacer (44) co... | 03/07/1989 |
| 4706783 | Automatic adjusting device for a brake An adjusting device (24,34) of an automatically adjustable shoe drum brake has an at least prartly movable locking member (46) associated with it which cooperates with a heat sensitive spring element (50) and prevents pivoting of an adjusting lever (34) a... | 11/17/1987 |
| 4705147 | Brake actuator with automatic adjustment The invention concerns a brake actuator with automatic adjustment incorporating a screw and nut actuator mechanism (32, 34) whose elongation is controlled by a screw and nut device with reversible pitch (44) and a unidirectional clutch (56) sensitive to t... | 11/10/1987 |
| 4702357 | Drum brake adjuster Disclosed herein is an improved servo brake drum adjustment mechanism which automatically adjusts the brake shoes for wear of the friction pads and drum surface. The mechanism comprises a screw thread adjustment link activated by movement of a pawl finger... | 10/27/1987 |
| 4702354 | Brake actuator A hydraulic actuator for a vehicle brake incorporates an automatic adjuster which includes a strut of variable length formed by members which are threadedly interengaged by way of non-reversible screw thread connection. The member is an adjuster shaft whi... | 10/27/1987 |
| 4564090 | Self-centering brake assembly incorporating a brake drum and automatic adjusting mechanism A self-centering brake assembly in which the leading shoe 12 and the trailing shoe 14 are connected in a duo servo braking mode. The connected ends of the shoes have an automatic adjuster comprising an adjuster lever return spring 70, an adjuster lever 74... | 01/14/1986 |
| 4502574 | Adjuster assembly for a nonservo drum brake An adjuster assembly for a nonservo drum brake includes a pawl (44) cooperating with a star wheel (30) of an extendible strut (22). The pawl (44) includes more than one (56, 58) edge cooperating with the star wheel to control extension of the extendible s... | 03/05/1985 |
| 4487298 | Drum brake assembly and adjuster therefor A drum brake assembly and adjuster therefor includes a wire element supporting a pawl and yieldably opposing movement of the pawl away from a rest position. The wire element is releasably connected to the pawl and a brake shoe for the drum brake assembly.... | 12/11/1984 |
| 4353437 | Adjuster for drum brakes A drum brake (10) includes a rotatable brake drum (16) and a pair of brake shoes (12, 14) which are engageable with the brake drum. A non-rotatable backing plate (24) slidably carries the pair of brake shoes. The brake shoes pivotally anchor at one end to... | 10/12/1982 |
| 4344512 | Duo servo drum brake and parking mechanism therefor A duo servo drum brake includes a pair of brake shoes which are movable by a hydraulic actuator during a service brake application to a braking position in engagement with a rotatable member. A strut and parking lever are engageable with respective brake ... | 08/17/1982 |
| 4270633 | Automatic brake adjuster with automatically adjusted steady point A duo servo drum brake has an adjusting lever pivoted on the secondary brake shoe and engaging the star wheel of an adjusting screw acting between adjacent ends of the primary and secondary brake shoes. An adjusting rod for operating the adjusting lever d... | 06/02/1981 |
| 4222467 | Drum brake adjuster The present invention relates to an improved drum brake assembly having an automatic adjuster to compensate for lining wear to a pair of brake shoes. A backing plate includes an anchor to pivotally support the pair of brake shoes and to secure a hydraulic... | 09/16/1980 |
| 4220227 | Drum brake automatic adjuster A drum brake assembly includes a pair of brake shoes which are movable by a hydraulic actuator to a position engaging a rotatable member. A backing plate supports the hydraulic actuator and carries an anchor to pivotally support the pair of brake shoes re... | 09/02/1980 |
| 4147239 | Drum brake assembly having integral cable support A drum brake assembly includes a backing plate which supports a pair of brake shoes and a hydraulic actuator is engageable with the pair of brake shoes to urge the latter into braking engagement with a drum. An adjuster also engages the pair of brake shoe... | 04/03/1979 |
| 4101011 | Drum brake adjuster A drum brake adjustment mechanism is provided to maintain a running clearance between a pair of brake shoes and a rotatable member. The adjustment mechanism includes an extendible member which is disposed between the pair of brake shoes and engageable wit... | 07/18/1978 |
| 4039055 | Automatic slack adjuster for drum brakes The invention concerns a drum brake of the type comprising brake actuator inserted between two adjacent ends of two brake shoes, the opposite ends thereof cooperating with a fixed anchoring member. An adjusting lever is pivotable relative to one of the sh... | 08/02/1977 |
| 4026394 | Vehicle shoe-drum brakes of the duo-servo type In an internal shoe-drum brake of the duo-servo type a strut assembly with which non-actuated shoe ends engage is slidably guided in an open-ended through bore in a fixed housing and the length of the strut assembly is substantially greater than the maxim... | 05/31/1977 |
