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Title: US5320198: Air brake stroke length adjustment gauge
[ Derwent Title ]

Country: US United States of America

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17 pages

Inventor: Hoyt, Gordon C.; Little Hocking, OH 45742
Hoyt, Bryan L.; Westfield, IN 46074

Assignee: None

Published / Filed: 1994-06-14 / 1993-07-22

Application Number: US1993000095508

IPC Code: Advanced: B60T 17/08; F16D 65/14; F16D 65/38; F16D 66/00; F16D 66/02;
IPC-7: F16D 66/02;

ECLA Code: F16D66/02; B60T17/08; F16D65/38; F16D66/00; R16D66/00D; R16D125/30;

U.S. Class: Current: 188/001.11W; 116/208; 188/079.55;
Original: 188/001.11; 188/079.55; 116/208;

Field of Search: 188/1.11,79.55,79.51,324,329,330,332,338,339,79.57-79.61,196 BA,196 R 192/30 W 116/208,285,288,283,284,290,281,282,286,287,300,303,304,307,310,309,311 073/129,121,118.1,709 340/454 092/5 R

Priority Number:
1993-07-22  US1993000095508

Abstract:     A gauge for indicating the setting and linear stroke movement of a brake rod of a brake assembly. Reference indicators are provided on both the brake-rod's yoke or clevis and on the arm of the brake's slack adjuster member; and the indicators cooperate, by their relative movement, showing brake rod travel and adjustment as a visual indication by the relative movement by the reference indicator of the linearly-moving clevis with respect to the angular rotation of the reference indicator on the rotating-slack adjuster arm.

Attorney, Agent or Firm: Spray, Robert A. ;

Primary / Asst. Examiners: Butler, Douglas C.;

Maintenance Status: E2 Expired  Check current status

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Family: Show 3 known family members

First Claim:
Show all 20 claims
We claim:     1. A visually indicative stroke length gauge means for visually indicating travel of a brake rod of air brake apparatus of a vehicle, the vehicle having air brake apparatus
  • including a brake rod and an air chamber cylinder from which cylinder the brake rod extends;
  • the apparatus being such that the brake rod moves substantially linearly outwardly of the air chamber cylinder in response to activation of the brake apparatus;
  • the air brake apparatus also including a clevis member having a clevis pin, and a rotatable adjuster member having a rotatable adjuster member body having a rotatable arm and a connection of the adjuster member body and the arm;
  • the clevis member being fixedly carried on the brake rod, and linearly movable therewith; and there being a pivotal connection, by the clevis pin, of the clevis member to the arm of the adjuster member body, the adjuster member body arm and the clevis member being connected solely by that connection, and the clevis member and the adjuster member being relatively rotatably movable due to their pivotal connection by the clevis pin;
  • the clevis member having a first portion relatively adjacent the air chamber cylinder and a second portion relatively remote from the air chamber cylinder, the clevis pin being connected to the clevis member's second portion;
  • the gauge means comprising visually indicative reference indicators comprising a first visual reference indicator which is carried by the clevis member's second portion; and a second visual reference indicator which is carried by the adjuster member inwardly of the side edges thereof;
  • the first and second reference indicators being cooperative to visually show, by their relative movement, the linear stroke length of the brake rod, by visually showing relatively the linear travel of the clevis member and the angular rotation of the adjuster member.

Background / Summary: Show background / summary

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Description: Show description

Forward References: Show 23 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (23)   |   Backward references (18)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 2pp USD322228  1991-12 Hoyt et al.   Brake rod stroke length indicator
Get PDF - 6pp US2379796  1945-07 Freeman et al.   Brake operating mechanism
Get PDF - 6pp US2522903  1950-09 Shively   Brake operating and adjusting mechanism
Get PDF - 6pp US3943486  1976-03 Hayoshida et al.  Tokico Ltd. Lining wear warning device
Get PDF - 5pp US4749063  1988-06 Garrett et al.  Eaton Corporation Brake clearance sensing and control system
Get PDF - 11pp US4757300  1988-07 Sebalos   Brake adjustment monitoring device for automotive vehicles
Get PDF - 7pp US4776438  1988-10 Schandelmeier   Brake adjustment indicator
Get PDF - 13pp US4800991  1989-01 Miller   Brake maintenance monitor
Get PDF - 7pp US4905800  1990-03 Mathews  Eaton Corporation S-cam for drum brake
Get PDF - 15pp US4937554  1990-06 Herman  Paccar Inc. Electronic brake monitoring system and method
Get PDF - 6pp US4945818  1990-08 Ware  Lear Siegler Truck Products Corporation Stroke indicator for air operated diaphragm spring brakes
Get PDF - 5pp US4989537  1991-02 Hutchinson, Sr. et al.   Wear indicator for vehicle air brakes
Get PDF - 5pp US4991310  1991-02 Melia   Brake chamber stroke indicator
Get PDF - 7pp US5002164  1991-03 Bowyer  Lear Siegler Truck Products Corp. Push-rod guide for air-operated diaphragm spring brakes
Get PDF - 9pp US5044302  1991-09 Goldfein et al.  LGS Research, Inc. Brake wear indicator
Get PDF - 6pp US5178092  1993-01 Schedin   Brake adjustment indicator
Get PDF - 9pp US5244061  1993-09 Hoyt et al.   Air brake stroke length gage
Get PDF - 9pp US5253735  1993-10 Larson et al.   Apparatus to sense and annunciate truck brake condition
Foreign References:
Publication Date IPC Code Assignee   Title
Get PDF - 11pp EP0208091 1987-01  F16D 65/60 WABCO Westinghouse Fahrzeugbremsen GmbH Device for automatically adjusting brake-actuating linkage 
  JP03148316 1991-06       

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