Railway brake pipe bracket access plate
First Claim
1. A pressure access plate for use with a freight brake control valve of a railway freight vehicle, wherein such control valve is of the type in which a brake pipe, a brake cylinder, an emergency reservoir and an auxiliary reservoir are connected to a portion thereof;
- said control valve further is of the type having a pipe bracket portion with a service portion and an emergency portion mounted on opposite sides thereto, and wherein said pipe bracket portion, said service portion and said emergency portion each have respective fluid communication means for communicating fluid pressure between such brake pipe, such brake cylinder, such emergency reservoir and such auxiliary reservoir, respectively, through said pipe bracket portion to said service portion and said emergency portion, such pressure access plate comprising;
fluid communication means for communicating fluid pressure between said fluid communication means of said pipe bracket portion and said fluid communication means of one of said emergency portion and said service portion;
means for accessing fluid pressures in said access plate fluid communication means, such that fluid under pressure may flow from said pipe bracket portion through said access plate to one of said emergency portion and said service portion, and said fluid under pressure from said pipe bracket portion may flow through said access plate to said fluid pressure accessing means; and
sealing means for sealing said access plate between said pipe bracket portion and one of said service portion and said emergency portion.
4 Assignments
0 Petitions
Accused Products
Abstract
An access plate mounted between the pipe bracket portion and either the service portion or the emergency portion of a railway freight brake control valve. Passageways are provided through the access plate, each passageway terminating in a respective access port along an end of the access plate. Openings extend through opposed sides of the access plate, intersecting respective access plate passageways. The openings on each side are sized and positioned to sealingly align with openings of the pipe bracket portion and either the emergency portion or the service portion. The openings on the pipe bracket portion, emergency portion and service portion connect to passageways communicating to the brake pipe, the brake cylinder retaining valve, the brake cylinder, the emergency reservoir and the auxiliary reservoir. A housing may be attached to the pipe bracket portion to connect to the access ports, such housing preferably having a valve means for preventing the escape of fluid pressure therefrom. An adaptor may engage with the housing, opening the valve means and allowing the fluid under pressure to enter the adaptor. A removable outer cover may be provided over the access housing once the adaptor is removed for providing additional sealing of the fluid under pressure.
-
Citations
21 Claims
-
1. A pressure access plate for use with a freight brake control valve of a railway freight vehicle, wherein such control valve is of the type in which a brake pipe, a brake cylinder, an emergency reservoir and an auxiliary reservoir are connected to a portion thereof;
- said control valve further is of the type having a pipe bracket portion with a service portion and an emergency portion mounted on opposite sides thereto, and wherein said pipe bracket portion, said service portion and said emergency portion each have respective fluid communication means for communicating fluid pressure between such brake pipe, such brake cylinder, such emergency reservoir and such auxiliary reservoir, respectively, through said pipe bracket portion to said service portion and said emergency portion, such pressure access plate comprising;
fluid communication means for communicating fluid pressure between said fluid communication means of said pipe bracket portion and said fluid communication means of one of said emergency portion and said service portion; means for accessing fluid pressures in said access plate fluid communication means, such that fluid under pressure may flow from said pipe bracket portion through said access plate to one of said emergency portion and said service portion, and said fluid under pressure from said pipe bracket portion may flow through said access plate to said fluid pressure accessing means; and sealing means for sealing said access plate between said pipe bracket portion and one of said service portion and said emergency portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- said control valve further is of the type having a pipe bracket portion with a service portion and an emergency portion mounted on opposite sides thereto, and wherein said pipe bracket portion, said service portion and said emergency portion each have respective fluid communication means for communicating fluid pressure between such brake pipe, such brake cylinder, such emergency reservoir and such auxiliary reservoir, respectively, through said pipe bracket portion to said service portion and said emergency portion, such pressure access plate comprising;
Specification