Patents by Inventor Brad Robert Lethorn

Brad Robert Lethorn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10968967
    Abstract: A retraction spring assembly having: a) pad clip having a lock channel and one or more assembly locks; b) a retraction spring affixed to the pad clip with two or more lock arms residing within the lock channel and a plurality of energy storage portions; and first and second retraction arms; wherein the one or more assembly locks are configured to receive the two or more lock arms and bias the retraction spring into an assembly position; during the brake apply, movement of the first and second retraction arm is toward each other and results in energy being stored in the body portion; and during the brake release, the energy stored in the body portion is released and transferred to both the first and second retraction arm to result in movement of the first retraction arm and the second retraction arm away from each other.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: April 6, 2021
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventor: Brad Robert Lethorn
  • Publication number: 20200149602
    Abstract: A retraction spring assembly having: a) pad clip having a lock channel and one or more assembly locks; b) a retraction spring affixed to the pad clip with two or more lock arms residing within the lock channel and a plurality of energy storage portions; and first and second retraction arms; wherein the one or more assembly locks are configured to receive the two or more lock arms and bias the retraction spring into an assembly position; during the brake apply, movement of the first and second retraction arm is toward each other and results in energy being stored in the body portion; and during the brake release, the energy stored in the body portion is released and transferred to both the first and second retraction arm to result in movement of the first retraction arm and the second retraction arm away from each other.
    Type: Application
    Filed: November 12, 2018
    Publication date: May 14, 2020
    Inventor: Brad Robert Lethorn
  • Patent number: 10280995
    Abstract: A brake caliper housing having: an inner body having one or more inner piston bores open toward a rotor gap; an outer body having: one or more outer piston bores open toward the rotor gap, a bridge structure which extends over the rotor gap, and a plurality of reinforcing structures included in the bridge structure; wherein a longitudinal plane passes through both the inner body and the outer body; wherein the plurality of reinforcing structures extend at an angle away from the longitudinal plane as the plurality of reinforcing structures extend from an exterior surface of the outer body over the rotor gap; and wherein one or more bridge fasteners parallel to the longitudinal plane secure the bridge structure to the inner body so that the bridge structure connects the outer body to the inner body.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: May 7, 2019
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD
    Inventors: Brad Robert Lethorn, Scott Alan Dubay
  • Patent number: 10267369
    Abstract: A brake piston that includes a body and a cap. The cap is free to move or pivot relative to the body. The body is adapted to generally maintain axial alignment with a piston bore that is adapted to support the brake piston, and the cap is free to move or pivot relative to the body and the piston bore.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: April 23, 2019
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD
    Inventors: Brad Robert Lethorn, Rory Hourihan
  • Publication number: 20190085921
    Abstract: A retraction spring having: a) a bias device which stores energy during a brake apply and releases the energy during a brake release b) an anchor arm integrally attached at the support side arm of the bias device; c) a retraction arm integrally attached at the pad side arm of the bias device; wherein the loop axis lies within and is generally parallel to a transverse plane; wherein during the brake apply, movement of the retraction arm is away from the bias device, away from the anchor arm, and/or toward a rotor and results in the energy being stored in the bias device; and wherein during the brake release, the energy stored in the bias device is released and transferred to the retraction arm to result in movement of the retraction arm toward the bias device, toward the anchor arm, and/or away from the rotor.
    Type: Application
    Filed: September 21, 2017
    Publication date: March 21, 2019
    Inventors: James Andrew Reuss, Brad Robert Lethorn
  • Publication number: 20190032735
    Abstract: A brake piston that includes a body and a cap. The cap is free to move or pivot relative to the body. The body is adapted to generally maintain axial alignment with a piston bore that is adapted to support the brake piston, and the cap is free to move or pivot relative to the body and the piston bore.
    Type: Application
    Filed: July 28, 2017
    Publication date: January 31, 2019
    Inventors: Brad Robert Lethorn, Rory Hourihan
  • Publication number: 20180187730
    Abstract: A brake caliper housing having: an inner body having one or more inner piston bores open toward a rotor gap; an outer body having: one or more outer piston bores open toward the rotor gap, a bridge structure which extends over the rotor gap, and a plurality of reinforcing structures included in the bridge structure; wherein a longitudinal plane passes through both the inner body and the outer body; wherein the plurality of reinforcing structures extend at an angle away from the longitudinal plane as the plurality of reinforcing structures extend from an exterior surface of the outer body over the rotor gap; and wherein one or more bridge fasteners parallel to the longitudinal plane secure the bridge structure to the inner body so that the bridge structure connects the outer body to the inner body.
    Type: Application
    Filed: January 5, 2017
    Publication date: July 5, 2018
    Inventors: Brad Robert Lethorn, Scott Alan Dubay
  • Patent number: 9989112
    Abstract: A caliper housing having a) an inboard side; b) an outboard side distanced from the inboard side so that a rotor gap is formed between the inboard side and the outboard side; c) a bridge structure which extends from both the inboard side and the outboard side over the rotor gap and connects the inboard side with the outboard side; d) a damper bore passing through the caliper housing from the inboard side into the bridge structure; and e) a mass damper residing within the damper bore; wherein the mass damper is adapted to dampen vibrations occurring during use of the caliper housing.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 5, 2018
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD
    Inventors: Brad Robert Lethorn, Scott Alan Dubay, Keqin Xu
  • Patent number: 9068611
    Abstract: A pin cap comprising: (a) a central portion including one or more through holes; (b) one or more springing arms extending from the central portion; (c) one or more contact regions; and wherein the pin cap is configured to receive a pin from a brake system so that the one or more contact regions of the pin cap contact the pin and connect the pin cap to the pin, and the one or more through holes in the central portion assist the pin cap in expanding to receive a pin so that the central portion of the pin cap creates a gripping force on the pin; and wherein the one or more springing arms bias the pin so that the pin and pin cap are substantially centrally located within a pin bore of the brake system.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: June 30, 2015
    Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Brad Robert Lethorn, Scott Alan Dubay
  • Publication number: 20150122598
    Abstract: A pin cap comprising: (a) a central portion including one or more through holes; (b) one or more springing arms extending from the central portion; (c) one or more contact regions; and wherein the pin cap is configured to receive a pin from a brake system so that the one or more contact regions of the pin cap contact the pin and connect the pin cap to the pin, and the one or more through holes in the central portion assist the pin cap in expanding to receive a pin so that the central portion of the pin cap creates a gripping force on the pin; and wherein the one or more springing arms bias the pin so that the pin and pin cap are substantially centrally located within a pin bore of the brake system.
    Type: Application
    Filed: November 4, 2013
    Publication date: May 7, 2015
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Brad Robert Lethorn, Scott Alan Dubay
  • Patent number: 8376092
    Abstract: A device comprising: a pair of opposing legs; a bridge between and connecting the pair of legs; a pair of retraction spring arms attached to the outside of each of the legs; the retraction spring arms each comprising: a guide support tab connected to each of the pair of opposing legs wherein the retraction spring arms assist in retracting a pair of brake pads, and the guide support tabs guide the retraction spring arms during movement.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: February 19, 2013
    Assignee: Akebono Brake Corp.
    Inventor: Brad Robert Lethorn
  • Publication number: 20120205205
    Abstract: A device comprising: a pair of opposing legs; a bridge between and connecting the pair of legs; a pair of retraction spring arms attached to the outside of each of the legs; the retraction spring arms each comprising: a guide support tab connected to each of the pair of opposing legs wherein the retraction spring arms assist in retracting a pair of brake pads, and the guide support tabs guide the retraction spring arms during movement.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 16, 2012
    Applicant: AKEBONO CORPORATION
    Inventor: Brad Robert Lethorn