WO2012061671A3 - Railroad car hand brake release system - Google Patents

Railroad car hand brake release system Download PDF

Info

Publication number
WO2012061671A3
WO2012061671A3 PCT/US2011/059261 US2011059261W WO2012061671A3 WO 2012061671 A3 WO2012061671 A3 WO 2012061671A3 US 2011059261 W US2011059261 W US 2011059261W WO 2012061671 A3 WO2012061671 A3 WO 2012061671A3
Authority
WO
WIPO (PCT)
Prior art keywords
hand brake
actuator
release system
brake release
release
Prior art date
Application number
PCT/US2011/059261
Other languages
French (fr)
Other versions
WO2012061671A2 (en
Inventor
Brian F. Albert
Robert L. Horvath
Original Assignee
Albert Brian F
Horvath Robert L
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Albert Brian F, Horvath Robert L filed Critical Albert Brian F
Priority to US13/883,533 priority Critical patent/US20140332328A1/en
Publication of WO2012061671A2 publication Critical patent/WO2012061671A2/en
Publication of WO2012061671A3 publication Critical patent/WO2012061671A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H13/00—Actuating rail vehicle brakes
    • B61H13/02—Hand or other personal actuation
    • B61H13/04—Hand or other personal actuation by mechanisms incorporating toothed gearing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)
  • Regulating Braking Force (AREA)

Abstract

An automatic hand brake system for a railcar including a release mechanism operatively connected between an actuator and the spool gear that is turned by hand to set the hand brake. The actuator is operatively connected to a pressured fluid system. When a threshold pressure is reached the actuator operates the release mechanism to release the spool gear so that the brakes are released. When there is a pressure drop, an automatic reset apparatus resets the release mechanism so that the hand brake can set. In one aspect, the pressurized fluid system such is an air brake system. In another aspect, the pressurized fluid system is oil or hydraulic system or a combination of air and oil. An apparatus can be employed to permit release of the hand brake if desired.
PCT/US2011/059261 2010-11-05 2011-11-04 Railroad car hand brake release system WO2012061671A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/883,533 US20140332328A1 (en) 2010-11-05 2011-11-04 Railroad car hand brake release system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41045710P 2010-11-05 2010-11-05
US61/410,457 2010-11-05

Publications (2)

Publication Number Publication Date
WO2012061671A2 WO2012061671A2 (en) 2012-05-10
WO2012061671A3 true WO2012061671A3 (en) 2012-08-16

Family

ID=46025125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/059261 WO2012061671A2 (en) 2010-11-05 2011-11-04 Railroad car hand brake release system

Country Status (2)

Country Link
US (1) US20140332328A1 (en)
WO (1) WO2012061671A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10325032B2 (en) 2014-02-19 2019-06-18 Snowflake Inc. Resource provisioning systems and methods
US9758136B2 (en) * 2015-01-14 2017-09-12 New York Air Brake, LLC Integrated system for a powered handbrake on a locomotive
GB2583403B (en) * 2020-02-14 2021-08-18 Lancereal Ltd A brake assembly for a rail vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5469941A (en) * 1994-02-07 1995-11-28 James T. Williamson Automatic handbrake release system for a railroad car
US6179093B1 (en) * 1998-09-18 2001-01-30 Westinghouse Air Brake Company Power source activated handbrake release mechanism
US6789855B2 (en) * 2002-09-17 2004-09-14 Westinghouse Air Brake Technologies Corporation Automatic set and release hand brake

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0542863A (en) * 1991-08-13 1993-02-23 Akebono Brake Ind Co Ltd Brake controller
CA2406505C (en) * 2000-04-04 2009-06-16 Utd, Inc. Brake system and method
US6709068B2 (en) * 2001-08-17 2004-03-23 Westinghouse Air Brake Technologies Corporation Automatic set and release hand brake pneumatic circuit design II/automatic application function
US7156471B2 (en) * 2004-10-28 2007-01-02 Wabtec Holding Corp. Two-stage cylinder for applying automatic set and release hand brake
US8794717B2 (en) * 2009-11-10 2014-08-05 New York Air Brake Corporation Automatic release hand brake control system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5469941A (en) * 1994-02-07 1995-11-28 James T. Williamson Automatic handbrake release system for a railroad car
US6179093B1 (en) * 1998-09-18 2001-01-30 Westinghouse Air Brake Company Power source activated handbrake release mechanism
US6789855B2 (en) * 2002-09-17 2004-09-14 Westinghouse Air Brake Technologies Corporation Automatic set and release hand brake

Also Published As

Publication number Publication date
US20140332328A1 (en) 2014-11-13
WO2012061671A2 (en) 2012-05-10

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