Spot Type Patents (Class 188/370)
  • Patent number: 11802600
    Abstract: A caliper body of a caliper for a disc brake may have two opposite elongated portions, each adapted to face one of the two opposite braking surfaces of the disc of disc brake. The two opposite elongated portions are connected to each other by at least one caliper bridge. At least one of the two opposite elongated portions may have seat walls which delimit at least one seat, adapted to house at least one portion of a thrusting element. The thrusting element may be adapted to determine a thrusting action against at least one brake pad associable with the caliper body to press the at least one brake pad against one of the two opposite braking surfaces. The seat walls may have at least one seat bottom wall, in which the axial thickness of the seat bottom wall is less than 5 mm.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: October 31, 2023
    Assignee: Brembo S.p.A.
    Inventors: Cristian Crippa, Enrico Ongaretti, Giorgio Ascanelli
  • Patent number: 11193549
    Abstract: A brake caliper comprising a body manufactured from ALM and having a skinned lattice structure. A method of designing and forming said brake caliper.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: December 7, 2021
    Assignee: ALCON COMPONENTS LIMITED
    Inventors: Stephen Hodgkins, Richard Humble, Andrew Smith
  • Patent number: 11149807
    Abstract: A hydraulic caliper disc brake includes an opposing pair of pistons adapted to act on an opposing pair of washers adapted to act on an opposing pair of stator assemblies, each of the pistons comprising a spherical piston face, each of the washers comprising a spherical washer face abutting a respective one of the spherical piston faces, and a straight washer face opposite the spherical washer face and abutting a respective one of the stator assemblies.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: October 19, 2021
    Assignee: Ausco Products, Inc.
    Inventors: James W. Haines, Keith R. McAllister, Kenneth A. Dodd, Brian P. Dennis, Norman D. Crawford, Peter J. Pozivilko
  • Patent number: 11034339
    Abstract: A method for operating a brake system for a motor vehicle, wherein the brake system has a braking pressure source and at least one wheel brake which can be pressurized with a braking pressure which is provided by means of the braking pressure source and acting on a brake piston. For performing a diagnosis of the brake system, the wheel brake is pressurized with a braking pressure which corresponds to a diagnosis braking pressure and which applies a certain force on the brake piston, and a counterforce directed oppositely to said force is applied to the brake piston.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 15, 2021
    Assignee: AUDI AG
    Inventor: Kai Volkmar
  • Patent number: 10941825
    Abstract: A multilayer piston insulator may comprise a plurality of axially aligned disks of a disk stack comprising, a first disk, a second disk, and a third disk, wherein the second disk is coupled axially between the first disk and the third disk and comprises a different material than the third disk, and wherein the disk stack is configured to couple to a hydraulic piston.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: March 9, 2021
    Assignee: Goodrich Corporation
    Inventor: Timothy Kyle Todd
  • Patent number: 10837506
    Abstract: A disc brake for utility vehicles includes a brake disc, a first brake lining on a first side of the brake disc and a second brake lining on a second side of the brake disc opposite the first side. A spreading device is also provided which generates a force that moves the first and the second brake lining away from one another.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: November 17, 2020
    Assignee: WABCO EUROPE BVBA
    Inventors: Frank Beyer, Jochen Frank, Hans-Christian Jungmann, Marcel Kalmbach, Marcus Keller, Peter Moser, Martin Müller, Vitalij Scherer, Mirko Seip, Markus Stafflinger
  • Patent number: 10690204
    Abstract: A brake caliper apparatus includes a caliper portion configured to be supported by a vehicle, a piston seal disposed in an annular cavity of the caliper portion, a piston disposed in a cylindrical recess in said caliper portion and having a cylindrical outer surface in sealing contact with the piston seal, the piston being movable within said cylindrical recess along an axial direction, a heat shield disposed at an axial end of the piston, and a sealing boot having a first end attached to the heat shield at an attachment portion of the heat shield and a second end engaged to the caliper portion at an engagement portion of the caliper portion, the piston seal and the engagement portion being on a common plane perpendicular to the axial direction.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 23, 2020
    Assignee: ADVICS CO., LTD.
    Inventor: Masakazu Takeuchi
  • Patent number: 10414883
    Abstract: A method for producing a molded article of the present invention includes a step of preparing a pellet raw material containing a resin and raw fibers, a step of cutting the pellet raw material to obtain a plurality of pellets each containing the resin and fibers produced by cutting the raw fibers, a step of opening the fibers contained in each pellet; and a step of molding the pellets after being opened to obtain the molded article. According to the present invention, it is possible to easily produce a molded article (e.g., a back plate of a brake pad) having excellent mechanical strength. Further, According to the present invention, it is also possible to provide a molded article and a back plate each having excellent mechanical strength, and a brake pad having high reliability.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: September 17, 2019
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Hideaki Inokuchi, Shinya Yamamoto, Koji Koizumi
  • Patent number: 9970493
    Abstract: A disc brake having a caliper, a housing bore, a guide insert, and a piston. The housing bore extends inboard from an outboard face of a housing portion of the caliper. The guide insert may have an inner guide bore and may be mounted within the housing bore. The piston may be slideable within the inner guide bore relative to the guide insert so as to urge a brake pad towards a rotor.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: May 15, 2018
    Assignee: Meritor Heavy Vehicle Braking Systems (UK) Limited
    Inventors: Sean Cleary, Dietmar Knoop, Refaat Malki, Mark Norman, Paul Roberts, Paul Thomas, Neil Williams
  • Patent number: 9746042
    Abstract: In an opposed-piston disc brake caliper, a pair of reinforcement bridge portions, which are inclined relative to an axial direction, are provided on outside of a rotor in a radial direction of the rotor so as to define corner opening portions in an opening portion which is defined by an inner body portion, an outer body portion, and an entry-side connection portion and an exit-side connection portion connecting the inner body portion and the outer body portion. A torque receiving portion of one of the entry-side torque receiving portion and the exit-side torque receiving portion is exposed toward an outside in the radial direction via the corner opening portions.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: August 29, 2017
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Takefumi Morio, Tetsuya Noguchi, Tsuyoshi Suzuki, Yoshio Totsuka
  • Patent number: 9551388
    Abstract: Disclosed is a disk brake caliper assembly where a second seal is positioned in a second annular groove to eliminate the seizure of the piston cylinder that commonly occurs on trailer brakes that are immersed in water. The second seal is slightly deformable and designed to frictionally engage the piston. The second seal functions as both a wiper to keep dirt and contaminants out of the cylinder assembly and to prevent water ingress. The use of the secondary seal can compliment or eliminate the need for a dust boot.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: January 24, 2017
    Inventors: Henry Dombroski, Anthony Cunningham
  • Patent number: 8991564
    Abstract: A disk brake includes a caliper body having a cylinder portion (25) with a cylindrical shape. The cylinder portion (25) has a bore (30) with a bottom (34) formed by integrally joining together an opening peripheral edge (98) at the bottom side of the cylinder portion (25) and a bottom cover member (92) to be fitted to the opening peripheral edge (98) through friction stir welding. The bottom cover member (92) has a disk shape and is friction-stir-welded along the outer periphery thereof. The terminating point of the friction stir welding is within the boundaries of the bottom cover member (92).
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 31, 2015
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shinji Suzuki, Takahiro Tokunaga, Yuichi Kobayashi, Yasuhisa Omata, Jun Watanabe, Seunghwan Park, Akihiro Sato, Satoshi Hirano, Kazutaka Okamoto
  • Patent number: 8991565
    Abstract: Disc brake piston cap (3) interposed between the caliper (1) and the piston (2) to protect the piston (2). The cap (3) has a bulge (351) on the inner fold (35) which is engaged in the groove (22) of the piston (2), and has an overmolded insert (31) fixed to the annular groove (11) of the caliper. The folded cap (3), with the overmolded insert (31), intermediate folds (33, 34) and an outer fold (32), comprises longitudinal ribs (352) on the face of the inner fold (35) to stiffen this fold and allow air to pass from the inside to the outside around the bulge (351) of the inner fold (35), housed in the groove (22).
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: March 31, 2015
    Assignee: Chassis Brakes International B.V.
    Inventors: Pascal Champion, Philippe Barret, François Daguzan, Thierry Bindner
  • Patent number: 8807298
    Abstract: A disk brake is provided which is free from problems attributed to the obverse-reverse orientation of a cover member as installed. A cylinder portion (21) slidably accommodating a piston is formed from a plate-shaped cover member (43) constituting the bottom thereof and a caliper body main part (46) having an opening (45) that is closed with the cover member (43). The cover member (43) is joined to the caliper body main part (46) to close the opening (45). A projection (60) is provided on one side of the cover member (43) that faces inside the cylinder portion (21), and a blind hole (61) is provided on the other side of the cover member (43). When the cover member (43) has been installed in the normal orientation, the blind hole (61) remains after the outer surface of the bottom of the caliper body has been subjected to face cutting after the installation of the cover member (43).
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: August 19, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Keisuke Nanri, Junichi Nagasawa, Yuichi Kobayashi, Yoshimasa Matsui, Kiyotaka Nomura, Jun Takahashi
  • Publication number: 20140202811
    Abstract: A brake caliper of a disk brake for a utility vehicle is provided. The brake caliper includes tension braces which are arranged substantially parallel and at a distance from each other, straddling a brake disk and connecting receptacles for functional parts arranged on both sides of the brake disk. One receptacle forms a caliper back and the other receptacle forms a housing having a lever dome formed thereon. The brake caliper includes at least one replaceable service-related wear protection element fastened to areas of potential wear during in-service use of the brake caliper, such as at the lower side of the leading tension brace and at least partially around the lever dome.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicant: KNORR-BREMSE Systeme Fuer Nutzfahrzeuge GmbH
    Inventors: Markus GRUBER, Wolfgang PRITZ, Martin MACK
  • Publication number: 20140158488
    Abstract: Caliper bodies are provided for disc brakes suitable for being arranged astride of a disc for a disc brake, which include an attachment side portion, a non-attachment side portion and at least one bridge, said bridge being suitable for connecting such side portions and for being arranged astride of the disc, wherein the caliper body includes at least one portion made from thermoplastic material, reinforced with carbon fibres, with resistance to a temperature of at least 200° C. Disc brakes which incorporate such caliper bodies are also provided.
    Type: Application
    Filed: May 9, 2011
    Publication date: June 12, 2014
    Applicant: PETROCERAMICS S.p.A.
    Inventors: Massimiliano Valle, Niccolo' Ignazio Maria Pini
  • Patent number: 8701841
    Abstract: Brake caliper bodies and brake calipers for disc brakes are provided.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: April 22, 2014
    Assignee: Freni Brembo S.p.A.
    Inventors: Cristian Crippa, Paolo Cesani, Massimo Preda
  • Patent number: 8672100
    Abstract: A disk brake having a cylinder apparatus wherein although an opening of a cylinder body is closed by a covering member, processing and parts' costs are reduced, fluid leakage is prevented, and the apparatus can be reduced in size. A piston (17) is caused to slidingly move in a bore (26) of a cylinder (21) of the cylinder apparatus. The cylinder (21) includes a covering member (43) provided in a bottom portion (42) of the cylinder (21), and a cylinder body (46) having an opening that is closed by the covering member (43). The covering member (43) is friction stir welded to the cylinder body (46).
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: March 18, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Tomoji Sato, Keisuke Nanri
  • Patent number: 8651254
    Abstract: An apparatus for a disk brake comprises a caliper body having an inner peripheral surface and a seal groove disposed at the inner peripheral surface. The inner peripheral surface is dimensioned to slidably receive a piston therein, wherein the piston moves in a direction of a braking direction axis, and the seal groove is dimensioned to receive a seal therein so that the seal can seal a space between the inner peripheral surface and the piston. The seal groove comprises a movement restricting part that restricts movement of the seal in the direction of the braking direction axis, and a movement permitting part formed as a step facing radially inwardly.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: February 18, 2014
    Assignee: Shimano, Inc.
    Inventors: Etsuyoshi Watarai, Shinichi Takizawa, Hisashi Matsui
  • Patent number: 8616349
    Abstract: A disc brake to receive a disc and a brake pad. The disc brake includes an inner pad to produce friction with one side of a disc, an outer pad to produce friction with an opposite side of the disc, and a caliper housing including a cylinder part provided therein with a cylinder to receive a piston to press the inner pad and a finger part provided in front of the cylinder part to press the outer pad. The caliper housing includes a spacer to variably change an interval between the cylinder part and the finger part.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: December 31, 2013
    Assignee: MANDO Corporation
    Inventor: Jung Sik Kang
  • Patent number: 8567574
    Abstract: A brake caliper has a brake pad having a backplate with a friction material attached to one side and a loading face on an opposite side. The caliper further includes a piston that applies a force to the loading face. The brake pad is releasably attached to the piston, thereby eliminating a separate brake pad retaining structure in the caliper.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: October 29, 2013
    Assignee: ArvinMeritor Light Vehicle Systems (UK) Ltd.
    Inventors: Paul Roberts, Paul Anthony Thomas, Anthony John Williams, Denis John McCann, Carl Edward Heinlein
  • Patent number: 8561762
    Abstract: A brake piston may include a steel core and a phenolic outer layer that may be overmolded to the steel core.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: October 22, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Peter Schupska, Jeff Platt
  • Patent number: 8534428
    Abstract: A hydraulic disc brake caliper that includes a housing that has first and second side portions and first and second end portions that cooperate to define a braking opening. The housing also includes first and second piston receiving openings and first and second fluid openings. The caliper also includes a bolt received in the second fluid opening that includes a shaft having a portion of a fluid path defined in the outer surface thereof that includes at least one channel and at least one reduced diameter portion. The fluid path extends from the first fluid opening to the second fluid opening. The at least one channel and the at least one reduced diameter portion are part of the fluid path and are in fluid communication between the first and second piston receiving openings.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: September 17, 2013
    Assignee: Shimano Inc.
    Inventors: Takahiro Yamashita, Shinichi Takizawa
  • Patent number: 8459421
    Abstract: There is provided a disk brake comprising: a piston that presses a brake pad to a disk rotor; and a caliper at which the piston is slidably provided through a piston seal, the caliper making the piston moved forward by hydraulic pressure, wherein the piston has that an anodized film layer formed by an anodized treatment is formed on a surface of a piston base body made of aluminum alloy, and a chromium plating layer is directly laminated on a surface of the anodized film layer.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: June 11, 2013
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shintaro Tsujimi, Kiyokazu Nakane
  • Patent number: 8448754
    Abstract: Disc brake comprising an hydraulic actuator for clamping shoes guided by a caliper (14) and an annular seal (10) lodged with axial clearance (J) in a groove (28) of the actuator for ensuring fluid-tightness between the piston (16) and the cylinder of the actuator, characterized in that the groove (28) comprises a rib (40) for the axial locking of the seal (10).
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: May 28, 2013
    Assignee: Chassis Brakes International B.V.
    Inventors: Olivier Kubic, Eric Lemoine
  • Publication number: 20130126284
    Abstract: The invention relates to a disk brake, in particular for utility vehicles, having a carrier, a caliper, a holder device for displaceably holding the caliper on the carrier, a seal which is fixed in a recess on the holder device, and a pretensioning device for pretensioning the seal in the recess, wherein the pretensioning device is activated by the mounting of the holder device.
    Type: Application
    Filed: April 7, 2011
    Publication date: May 23, 2013
    Applicant: WABCO RADBREMSEN GMBH
    Inventor: Manuel Reiser
  • Patent number: 8408366
    Abstract: The bottom surface of a seal groove provided in a cylinder bore has a first slant portion and a second slant portion. A transition point between the first slant portion and the second slant portion is located closer to the opening of the cylinder bore than the center in the cylinder bore axial direction of the seal groove. A gap is formed between the outer peripheral surface of a piston seal member and the bottom surface of the seal groove, and the surface pressure applied to the bottom surface of the seal groove from the piston seal member is higher at the cylinder-bottom-side end of the piston seal member than at the cylinder-opening-side end thereof. Thus, it is possible to suppress the movement of the piston toward the cylinder bore bottom due to thermal expansion of the piston seal member.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: April 2, 2013
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kimiyasu Kono, Keisuke Nanri
  • Patent number: 8376101
    Abstract: A brake caliper comprising a piston seat (10) wherein a piston (2) slides with its side surface (11) in contact with a radial surface (13) of an elastic member (12). The member further comprising two axial surfaces (15,16) adapted to be affected by a pressurized fluid and being arranged at the piston coming out side facing the pads respectively. The latter surface facing with a portion (17) thereof, a first chamber (18) arranged in the proximity of the piston side surfaces, with another portion (24) thereof, an abutment surface (19) adapted to support said elastic member when it is urged by the pressurized fluid, said abutment surface being radially retracted so as to be farther from the piston side surface than said first chamber and with a further portion (25) thereof, at least one second chamber (20) arranged radially farther from said piston side surface than said abutment surface.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: February 19, 2013
    Assignee: Freni Brembo S.p.A.
    Inventors: Cristian Crippa, Paolo Cesani, Luca Lenzi
  • Patent number: 8371422
    Abstract: A torque plate for a vehicle brake is comprised of a sheet metal body. The sheet metal body includes a center opening that defines a lateral axis and a plurality of mounting holes. The center opening receives an axle housing and the mounting holes are used to secure the vehicle brake to the torque plate. Each mounting hole is defined by a center axis that is non-parallel to the lateral axis.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: February 12, 2013
    Assignee: Meritor Wabco Vehicle Control Systems
    Inventors: Mark L. Frost, Daniel J. Philpott
  • Patent number: 8348030
    Abstract: A brake pad actuating device comprising: a piston including: a first pocket; an opposing second pocket; and an internal wall located in the piston separating the first pocket and the second pocket, wherein the volume of the first pocket to the volume of the second pocket form a ratio of less than about 20:1; and wherein the piston is adapted to be used as a brake piston.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: January 8, 2013
    Assignee: Akebono Brake Corporation
    Inventors: Amar Alamin, Eric J. Roszman
  • Patent number: 8261889
    Abstract: An opposed-piston disc brake includes cylinder connection oil passages respectively connected to a cylinder of an inner caliper portion and a cylinder of an outer caliper portion, passage communication bores respectively formed at bridge portions to extend in an axial direction of a disc in a substantially straight manner. The cylinder connection oil passages are formed using a core at the time when a caliper body is cast. The cylinder connection oil passages extend in a radially outer direction of the disc. Ends of the cylinder connection oil passages in a longitudinal direction thereof are directly connected to the passage communication bores. In a state where the caliper body is mounted on a vehicle, a top portion of an inner wall surface of one of the passage communication bores is positioned higher than the ends of the cylinder connection oil passages.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: September 11, 2012
    Assignee: Advics Co., Ltd.
    Inventors: Satoru Itsuaki, Shinichi Morita
  • Patent number: 8196716
    Abstract: A caliper for a disc-brake includes two side walls at a distance from each other which delimit a space to accommodate a portion of a brake disc. The side walls are connected to each other by a connecting structure which straddles the disc space. Each of the side walls delimits at least one seating capable of accommodating a pad. The caliper comprises a thrust to clamp the pads against the brake disc. The thrust is secured to the side walls in such a way that the side walls absorb the entire clamping force and the seatings are capable of securing the pads so that the side walls also absorb the entire braking moment. The connecting structure comprises arc-shaped shells, connected so as to be integral with both the side walls. The slenderness of the shells expressed as the ratio of thickness to circumferential extension relative to an axis of rotation of the brake disc is less than 17/100.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: June 12, 2012
    Assignee: Freni Brembo S.p.A.
    Inventors: Michael Schorn, Giovanni Mario Tironi, Enrico Battista Ongaretti, Paolo Sala
  • Patent number: 8162111
    Abstract: An exemplary embodiment of a brake caliper has a housing with a first chamber and a second chamber. The brake caliper also has a first piston that moves in response to fluid pressure in the first chamber and has a second piston that moves in response to fluid pressure in the second chamber. A brake pad has a leading end portion that is acted upon by the first piston and has a trailing end portion that is acted upon by the second piston. A fluid passage leads to the first chamber. The trailing end portion contacts an associated rotor before the leading end portion contacts the rotor.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: April 24, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Mark T. Riefe, Brent D. Lowe, David B. Antanaitis, Patrick J. Monsere
  • Patent number: 8083036
    Abstract: A method for manufacturing callipers for disc brakes. The calliper includes a body in which cylindrical chambers are formed inside which pistons run bearing pads intended for acting on the disc of the brake during the braking step. The method includes the steps of providing a body provided with a slit intended for receiving the disc of the brake and with a pair of cavities aligned transversely to the slit on opposite sides of the slit. The cavities are intended for forming a pair of cylindrical chambers. One of the cavities has a first opening on the slit and a second opening to the outside of the body at which there is a tapered portion with a decreasing section towards the outside of the body. Closing the second opening is a cap applied in the cavity by the slit. The cap has a tapered portion that is forced at the tapered portion of the second opening to form a cylindrical chamber of the calliper.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: December 27, 2011
    Assignee: Sunstar Engineering Pte. Ltd.
    Inventor: Cesare Brioschi
  • Patent number: 8083035
    Abstract: A method of manufacturing a cylinder apparatus wherein although an opening of a cylinder body is closed by a covering member, processing and parts costs are reduced, fluid leakage is prevented, and the apparatus can be reduced in size. The cylinder apparatus includes a piston (17) which is caused to slidingly move in a bore (26) of a cylinder (21). The cylinder 21 includes a covering member (43) provided in a bottom portion (42) of the cylinder (21), and a cylinder body (46) having an opening that is closed by the covering member (43). The covering member (43) is friction stir welded to the cylinder body (46).
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: December 27, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tomoji Sato, Keisuke Nanri
  • Publication number: 20110308904
    Abstract: A brake pad actuating device comprising: a piston including: a first pocket; an opposing second pocket; and an internal wall located in the piston separating the first pocket and the second pocket, wherein the volume of the first pocket to the volume of the second pocket form a ratio of less than about 20:1; and wherein the piston is adapted to be used as a brake piston.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 22, 2011
    Applicant: Akebono Corporation
    Inventors: Amar Alamin, Eric Roszman
  • Patent number: 7980366
    Abstract: A hydraulically actuated disc brake has at least two hydraulic brake pistons acting upon a brake lining, arranged in a brake housing. The hydraulic disc brake includes a hydraulic synchronization device for reducing oblique wear of the brake lining. The hydraulic synchronization device is interposed between an input pressure line for brake actuation and the brake piston.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 19, 2011
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventors: Aleksandar Pericevic, Johann Baumgartner, Robert Trimpe, Steffen Geissler
  • Patent number: 7971689
    Abstract: A hydraulic caliper brake assembly for a bicycle comprises a caliper body; a first chamber installed in the caliper body; a first piston installed in the first chamber; a second piston installed in the first chamber; an inner chamber formed between the first piston and the second piston for receiving brake oil; an outer chamber installed between the second piston and the caliper body for receiving brake oil; and an outer valve installed in the second piston for switching flowing of the brake oil between the inner chamber and outer chamber. When a small force is applied, the brake oil will flow into the inner chamber; by closing the outer valve, the first piston is pushed to have the effect of speed reduction; when the braking force is increased, by opening the outer valve, the second piston is pushed to have the effect of emergent braking.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: July 5, 2011
    Inventor: Wayne-Ian Moore
  • Patent number: 7905336
    Abstract: A flexible boot for protecting a cylinder-piston unit of a disk brake of the type that includes a piston slidable in a cylinder in order to act on a brake pad. The flexible boot has a surface with a portion that can face a wall of the pad when in a rolled-up position. The flexible boot is characterized in that it comprises at least one spacer element that is associated with the surface and is intended to come into contact with the wall of the pad in order to keep the portion of the surface spaced from the wall of the pad.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: March 15, 2011
    Assignee: Freni Brembo S.p.A.
    Inventor: Gianpaolo Cortinovis
  • Publication number: 20110048869
    Abstract: A brake piston may include a steel core and a phenolic outer layer that may be overmolded to the steel core.
    Type: Application
    Filed: September 3, 2009
    Publication date: March 3, 2011
    Inventors: Peter Schupska, Jeff Platt
  • Patent number: 7669699
    Abstract: A brake caliper has a brake pad having a backplate with a friction material attached to one side and a loading face on an opposite side. The caliper further includes a piston that applies a force to the loading face. The brake pad is releasably attached to the piston, thereby eliminating a separate brake pad retaining structure in the caliper.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: March 2, 2010
    Assignee: ArvinMeritor Light Vehicle Systems (UK) Limited
    Inventors: Paul Roberts, Paul Anthony Thomas, Anthony John Williams, Denis John McCann, Carl Edward Heinlein
  • Publication number: 20090255769
    Abstract: A brake caliper that has the same performance as a brake caliper with multiple pistons despite its compact structure, in which drag resistance between a brake pad and a brake disk is minimized, that is less likely to produce non-uniform wear of brake pad and brake squealing, and whose weight and cost are suppressed. Pistons (23) are formed in a circular hollow cylindrical shape, and apply pressing force to a disk rotor (1) by circular pressing parts. Piston-containing holes (21) recessed in a circular shape and containing the pistons (23) so that they can slide in the axial direction of the pistons are formed in caliper bodies (100, 105).
    Type: Application
    Filed: April 17, 2009
    Publication date: October 15, 2009
    Applicant: NUKABE CORPORATION
    Inventor: Shozo KURITA
  • Publication number: 20090050427
    Abstract: The present invention is predicated upon a brake caliper assembly, comprising a finger portion including a first end that is free and a second end, an inner surface and an outer surface, a cylinder portion including a first end that is free and a second end, an inner surface and an outer surface, and a bridge portion, including an inner surface and an outer surface, for connecting with the second end of the finger portion at a finger corner region having an inner surface and an outer surface, and for connecting with the second end of the cylinder portion at a cylinder corner region having an inner surface and an outer surface, and for defining a continuous surface that includes the inner surfaces of each of the finger portion, the cylinder portion, the finger corner region, the cylinder corner region and the bridge portion, wherein the inner surface of at least one of the finger or cylinder corner regions includes an inclined surface that is generally flat for a span of at least about 2 mm.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 26, 2009
    Applicant: Akebono Corporation ( North America)
    Inventor: Philip N. Jedele
  • Patent number: 7275624
    Abstract: To provide a motorcycle disk brake that can ensure brake force and also enable miniaturization. A motorcycle disk brake unit (10) has a part (105) of a piston (56) which projects outwards from an outer edge (35) of a brake disk (33), and by forming parts (67), within an outer back plate (65) and an inner back plate (75), corresponding to the piston (56) following the piston (56) so that an outer pad (90) and an inner pad (95) do not project out further than the outer edge (35) of the brake disk (33), another part (68) following the outer edge (35) of the brake disk (33), and a bridge section (53) following respective back plates (65), (75), a part (54) of the bridge section (53) can project further inwards than the piston (56) resulting in miniaturization of disk brake unit (10).
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: October 2, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventor: Kazuhiko Gogo
  • Patent number: 6968928
    Abstract: An air disk brake caliper housing is disclosed. The caliper housing includes a open rear end portion that opens into a passageway for receiving an actuator/adjuster mechanism. To minimize the outer contour of the caliper housing to alleviate packaging concerns with respect to a vehicle axle, the passageway is offset above an operating position for the actuator/adjuster mechanism. As the actuator/adjuster mechanism is inserted into the offset passageway, it passes a retaining step formed in the interior of the passageway to provide sufficient running clearance for gears of the actuator/adjuster mechanism. Once passing the retaining step, the actuator/adjuster mechanism may be dropped down to the appropriate operating height and installed in the operating position within the caliper.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: November 29, 2005
    Assignee: Dana Corporation
    Inventor: Daniel E. Banks
  • Publication number: 20040256187
    Abstract: A piston seal of a disc brake can stabilize the amount of rollback of a piston by reducing thermal expansion and a decrease in modulus of elasticity of the piston seal caused by an increase in temperature, thereby preventing a driver from feeling that the brake operation is unnatural. The piston seal is formed of a rubber composition in which at least 100 parts by weight or more of carbon black is added to 100 parts by weight of ethylene propylene rubber.
    Type: Application
    Filed: April 15, 2004
    Publication date: December 23, 2004
    Applicants: NISSIN KOGYO CO., LTD., FUKOKU CO., LTD.
    Inventors: Toru Noguchi, Kazuhito Kawata, Takashi Wanibuchi, Koichi Arita
  • Publication number: 20040188188
    Abstract: A caliper assembly has a one-piece housing with a first and second wall opposing one another. A pair of bridge sides connect the first and second walls. A bore is formed in the first wall to receive a piston assembly. An opening is formed between the first wall, second wall and pair of bridge sides. The opening enables access into the caliper body. At least one aperture is formed in the second wall. The aperture is continuous with the opening to enable access into the body.
    Type: Application
    Filed: March 24, 2003
    Publication date: September 30, 2004
    Inventors: Manuel Barbosa, Sean C. Barrett, Philip N. Jedele
  • Patent number: 6719104
    Abstract: The invention relates to a composite brake caliper and method for producing the same. The method for producing the composite brake caliper comprises the steps of: (a) providing a molding apparatus having at least a pair of mold sections, at least one of the pair of mold sections including at least one projection extending from a surface thereof; (b) providing at least one reinforced preform formed from at least a first material, the preform having at least one opening formed at least partially therein; (d) positioning the preform in the molding apparatus with the projection of the mold section extending into the opening of the preform so as to orient the preform in a predetermined position within the molding apparatus; and (e) casting a caliper body formed from a second material in situ therewith to produce the composite brake caliper.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: April 13, 2004
    Assignee: Kelsey-Hayes Company
    Inventors: Jonathan Wemple, Perry Jenkins, Harry A. Hunnicutt
  • Patent number: 6497315
    Abstract: Modified friction pad and friction-pad receptale assembly for a brake/clutch module permitting greater ease inserting pad into and withdrawing it from the brake/clutch module. The pad is held into the receptacle by clips at the distal end of the receptacle rather than the proximal end. That configuration, in conjunction with finger-grip depressions near the proximal end of the pad, allow the pad to be removed with one hand. Additionally, the friction pad assembly protects the torque-resistor pad guides from wear by interposing the spring steel of the retaining clips between the pad assembly and these guides.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: December 24, 2002
    Assignee: The Montalvo Corporation
    Inventor: Ryan T. Peary
  • Patent number: RE38975
    Abstract: A bicycle disc brake is provided in which a support member movably couples the brake caliper to the frame of the bicycle. The bicycle disc brake caliper has a caliper housing with a single piston unit. The piston unit is movably coupled to the housing between a release position, in which the piston unit is spaced from a disc brake mounted to a wheel of a bicycle, and a braking position, in which the piston unit engages the disc brake of the bicycle wheel. The piston unit has a first friction member movably coupled between a release position and a braking position and a second friction member arranged substantially parallel to the first friction member to form a disc brake receiving space between the first and second friction members. In one embodiment, the caliper housing is movably coupled to the support member by a pivot pin. In another embodiment, the caliper housing is movably coupled to the support member by a linkage assembly.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: February 14, 2006
    Assignee: Shimano Inc.
    Inventors: Kanji Kirimoto, Yoshiaki Ando, Kenji Ose, Tadashi Ichida, Toshio Tetsuka, Tatsuya Matsushita