Patents Assigned to Haldex Brake Products AB
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Patent number: 6705437Abstract: The present invention concerns a disc brake mainly for road vehicles. The disc brake comprises a fixed caliper straddling one or more brake discs, one or more thrust plates and a number of brake pads. The brake discs are received in a non-rotating but axially moveable relationship on a rotating hub. The brake pads are guided axially moveable in the caliper taking up the load of the brake pads.Type: GrantFiled: December 18, 2002Date of Patent: March 16, 2004Assignee: Haldex Brake Products ABInventors: Lars Severinsson, Håkan Larsson
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Patent number: 6705435Abstract: A disc brake for a heavy road vehicle has a caliper arranged at a brake disc mounted on a wheel axle of the vehicle. A thrust rod of the disc brake transforms a rotational ingoing movement from a drive means into a linear outgoing movement for transmission to a disc brake pad, intended for braking engagement with the brake disc. The thrust rod has a non-rotatable spindle, a rotatable nut member in thread engagement with the spindle, and a thrust rod gear for receiving the ingoing rotational movement. A biased roller and ramp arrangement is operationally interposed between the nut member and the thrust rod gear and is intended for rotating the nut member on the spindle at a low counterforce in the spindle and for axially transferring the nut member with the spindle at a high counterforce in the spindle.Type: GrantFiled: June 3, 2002Date of Patent: March 16, 2004Assignee: Haldex Brake Products ABInventor: Lars Severinsson
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Patent number: 6668981Abstract: The present invention concerns a disc brake having a brake mechanism. The disc brake comprises a caliper (16) reaching over a brake disc and having a cavity for receiving the brake mechanism. The brake mechanism comprises a bearing bracket (30) received from the inside in an opening (17) of the caliper (16) in the side wall furthest from the brake disc. The brake mechanism comprises an adjuster mechanism (23) an adjustment shaft (40) and a reset shaft (41). Means (24) are provided for transferring movement between the adjuster and reset shafts (40, 41). The adjuster mechanism is actuated by a lever pin (43) on a lever (31) of the brake mechanism and is received in the bearing bracket (30) at assembly.Type: GrantFiled: May 25, 2001Date of Patent: December 30, 2003Assignee: Haldex Brake Products ABInventors: Anders Örtegren, Stefan Sandberg
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Patent number: 6659235Abstract: The present invention concerns a brake caliper and a brake mechanism for a disc brake received in the caliper. The brake mechanism comprises a brake lever, a cross bar, one or more thrust plates and a cover. The caliper is of an open design having an opening in the wall furthest from the brake disc. A bearing bracket is mounted from the inside of the caliper in the opening.Type: GrantFiled: May 25, 2001Date of Patent: December 9, 2003Assignee: Haldex Brake Products ABInventors: Anders Örtegren, Stefan Sandberg
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Patent number: 6634468Abstract: The present invention concerns a brake caliper and a method for assembly of a brake mechanism for a disc brake in said caliper. The caliper surrounds the brake disc on both sides and has a cavity for receiving the brake mechanism. The caliper is of an open design having an opening in the wall furthest from the brake disc. The inside of the caliper may be machined through the opening, before the brake mechanism is assembled in the caliper.Type: GrantFiled: May 25, 2001Date of Patent: October 21, 2003Assignee: Haldex Brake Products ABInventors: Anders Örtegren, Stefan Sandberg
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Patent number: 6585086Abstract: The present invention concerns a brake mechanism for a brake disc. The brake mechanism comprises a brake lever, a cross bar, one or more thrust plates and a closing plate. The brake mechanism is of a modular form comprising two or more units.Type: GrantFiled: May 25, 2001Date of Patent: July 1, 2003Assignee: Haldex Brake Products ABInventors: Anders Örtegren, Stefan Sandberg
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Patent number: 6571489Abstract: For a single chamber air drier in a compressed air system on a vehicle the volume of dry regeneration air required to regenerate a desiccant in the air drier has to be determined. This can be accomplished in that data regarding system pressure, outdoor temperature and supplied air volume are continuously provided to a compute, which in relation to these parameters controls the supply of regeneration air to the air drier.Type: GrantFiled: September 24, 2001Date of Patent: June 3, 2003Assignee: Haldex Brake Products ABInventors: Sven-Olof Larsson, Mats-Örjan Pogen
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Patent number: 6484413Abstract: An air drier comprises a base member with means for supplying and carrying away air to and from the air drier, respectively, a cylindrical, dome-shaped container releasably attached to the base member, and in the container a replaceable cartridge for desiccant. The cartridge is divided by a cylindrical dividing wall into a central compartment containing desiccant and an outer annular compartment. The top wall of the cartridge is provided with holes or passages for allowing air communication inside the container between the two compartments.Type: GrantFiled: September 8, 2000Date of Patent: November 26, 2002Assignee: Haldex Brake Products ABInventor: Sven-Olof Larsson
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Patent number: 6408993Abstract: A brake lever is to be attached to a splined S-cam shaft of an automotive drum brake and to be connected to a brake cylinder push rod. The lever has a control arrangement for transmitting a control movement from a control disc with a reference point to a clutch wheel of the lever mechanism depending on the angular movement of the brake lever. The control disc is in gear engagement with a pinion, and an adjustment screw coaxial with the pinion is in engagement with the clutch wheel. A cylindrical driver is axially but non-rotatably movable in relation to the pinion coaxial therewith and forms a one-way clutch with a unit including the adjustment screw, which is axially movable a distance corresponding to a desired control distance or A-measure for the brake lever, the one-way clutch being spring-biased into engagement.Type: GrantFiled: September 27, 2000Date of Patent: June 25, 2002Assignee: Haldex Brake Products ABInventor: Jaan Truuvert
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Patent number: 6342093Abstract: An air drier arrangement including an air compressor (1), an air-drier (3) and air conduits (2, 4). In order to obtain favorable working conditions for the arrangement under different temperatures there is a switch-over valve (6) in a separate signal air pipe (5) from the air drier to the compressor. This valve is operable between a first position, giving a governor mode for the arrangement, and a second position, giving an unloader mode for the arrangement. The operations of the valve may be governed by a thermostat (9).Type: GrantFiled: February 28, 2000Date of Patent: January 29, 2002Assignee: Haldex Brake Products ABInventor: Sven-Olof Larsson
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Patent number: 6105730Abstract: An automatic brake lever (1) with a built-in slack adjuster is intended for transmitting brake force from a brake cylinder and is mounted on a brake actuating cam shaft (2). For the purpose of accomplishing a wear indicating device, a coded disc (10) is connected to the cam shaft, whereas a housing (9, 11) therefore is connected to the brake lever or a fix-point for the lever. The coded disc is provided with a number of coded paths of circular shape, magnetic areas of equal length being provided in each coded path. A number of hall-elements (15) corresponding to the number of coded paths are provided in the cover (11) of the housing, each hall-element being arranged to sense the magnetic areas in the respective coded path. The signals from the hall-elements together indicate the relative position between the disc and the cover.Type: GrantFiled: November 19, 1998Date of Patent: August 22, 2000Assignee: Haldex Brake Products ABInventor: Mats Ekeroth
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Patent number: RE37231Abstract: A disc brake caliper comprises a housing (1) to be arranged to straddle a vehicule brake disc, a cover (2) attached to the housing, two thrust sleeves (8), which are connected to a brake pad (5) and which are axially movable in the housing, a cross bar (9) connecting the two thrust sleeves, and a lever (17) for transmitting a brake force from a brake cylinder (4), attached to the caliper, to a cross bar. Bearing tappets (20), parallel with the cross bar, are fixedly connected to the inside of the cover. The lever has a curved wedge (19) with two cylindrical surfaces (19′, 19″) in engagement with corresponding cylindrical surfaces of the bearing tappets and the cross bar, respectively. An adjuster mechanism (28) is arranged on a splined shaft (29) rotatably journalled in the bearing tappets.Type: GrantFiled: June 3, 1999Date of Patent: June 19, 2001Assignee: Haldex Brake Products ABInventor: Lars Severinsson