Invention Grant
- Patent Title: Quick Service Limiting Valve
-
Application No.: US16202750Application Date: 2018-11-28
-
Publication No.: US10647309B2Publication Date: 2020-05-12
- Inventor: William John Potter , Ryan Repko , Edward W. Gaughan
- Applicant: Westinghouse Air Brake Technologies Corporation
- Applicant Address: US PA Wilmerding
- Assignee: WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
- Current Assignee: WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
- Current Assignee Address: US PA Wilmerding
- Agency: The Small Patent Law Group LLC
- Agent Christopher R. Carroll
- Main IPC: F16K15/02
- IPC: F16K15/02 ; B60T15/02 ; B60T15/42 ; B60T17/22

Abstract:
A quick service limiting valve includes a housing defining an interior chamber, a brake pipe passageway, and a brake cylinder passageway, a valve member received within the interior chamber of the housing, with the valve member including a body, a first seal, a second seal, and a valve spring. The body of the valve member defines a valve passageway, with the valve member having a first position where the valve passageway allows fluid communication between the brake pipe passageway and the brake cylinder passageway and a second position where the brake pipe passageway is isolated from the brake cylinder passageway. The valve further includes a follower assembly received within the interior chamber of the housing, with the follower assembly including a body, a first check valve, a second check valve, a diaphragm, and a follower spring.
Public/Granted literature
- US20190176791A1 Quick Service Limiting Valve Public/Granted day:2019-06-13
Information query