Locomotive parking brake

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6427811
SERIAL NO

09705516

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electronically controlled parking or safety brake is disclosed. The brake is capable of reliably immobilizing a locomotive. A brake may employ both manual and automatic modes, and be capable of providing for either mode in operation. The electronic control system facilitates the setting and releasing of the brake in the automatic mode without any manual manipulation or readjustment of gears, handles, levers, pawls, and the like being required by an operator. An actuating mechanism is capable of operating in a first mode to set the brake and in a second mode to release the brake. A motor, clutch, gearing means, ratchet mechanism, solenoid, and electronic control system are operatively connected to a chain to set the brake on the locomotive wheel. Further, remote operation of the brake is possible through hard wired control signals or by wireless communication using a transmitter to send signals to the electronic control means. Further, determination of the applied brake force may be through local sensing of motor current or remote sensing through a load sensor located at the wheel braking device.

First Claim

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Patent Owner(s)

Patent OwnerAddress
GRAHAM-WHITE MFG COP O BOX 1099 SALEM VA 24153

International Classification(s)

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  • 2000 Application Filing Year
  • B61H Class
  • 18 Applications Filed
  • 11 Patents Issued To-Date
  • 61.12 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20002001200220030255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Babcock, J Hunter Roanoke, VA 5 22
Goldshteyn, Leonid Y Roanoke, VA 2 19
Gurley, Anthony G Troutville, VA 2 19
Pettengill, Jr David E Salem, VA 1 16
Wedge, Leonard F Roanoke, VA 2 19

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Patent Citation Ranking

  • 16 Citation Count
  • B61H Class
  • 0 % this patent is cited more than
  • 23 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges31 - 1000.20.40.60.811.21.41.61.822.22.42.62.833.2

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