Invention Grant
- Patent Title: Parking brake reset mechanism for railway vehicles
-
Application No.: US13803056Application Date: 2013-03-14
-
Publication No.: US09751513B2Publication Date: 2017-09-05
- Inventor: James Thomas Dewberry , Robert Norman Scharpf
- Applicant: Wabtec Holding Corp.
- Applicant Address: US PA Wilmerding
- Assignee: Wabtec Holding Corp.
- Current Assignee: Wabtec Holding Corp.
- Current Assignee Address: US PA Wilmerding
- Agency: The Webb Law Firm
- Main IPC: B60T13/68
- IPC: B60T13/68 ; B60T15/60 ; B61H13/00 ; B60T13/26 ; B60T13/66 ; B60T17/22

Abstract:
A parking brake reset system for a railway vehicle, such as a transit vehicle, includes a brake operating unit fluidly connected to a main air reservoir and controlling air flow to a brake cylinder of the railway vehicle, a brake pipe, a parking brake, and a control valve in line between the brake pipe and the parking brake to establish fluid communication between the brake pipe and the parking brake. The control valve is in line between the brake operating unit and the parking brake, whereby the control valve controls air flow to the parking brake from the main air reservoir and the brake pipe. The control valve may be a double check valve or a 3-way cutout valve, as examples.
Public/Granted literature
- US20140262640A1 Parking Brake Reset Mechanism for Railway Vehicles Public/Granted day:2014-09-18
Information query