Ball cock for railway vehicle
First Claim
1. A ball cock valve for a railway vehicle, said ball cock valve comprises:
- (a) a main body portion possessing a primary-side opening and a secondary-side opening which face one another and an air exhaust aperture formed between said primary-side opening and said secondary-side opening, said air exhaust aperture being threaded;
(b) a ball-shaped valve body rotatably disposed inside a cavity formed in said main body portion, said ball-shaped valve body having a communication aperture formed therein which connects said primary-side opening and said secondary-side opening and a side aperture which, consequent to its rotation, connects said air exhaust aperture and one of said primary-side opening and said secondary-side opening; and
(c) a restrictor means threadably connected to said air exhaust aperture of said main body portion for restricting flow of air from said ball cock valve.
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Accused Products
Abstract
The present invention provides a ball cock for a railway vehicle which comprises a main body possessing a primary-side opening and a secondary-side opening which face one another and an air exhaust aperture which is formed between these openings. Such ball cock further incudes a ball-shaped valve body which is rotatably provided inside such main body and in which there is formed a communication aperture which connects the primary side opening and the secondary-side opening and a side aperture which, consequent to its rotation, connects the air exhaust aperture and either the primary-side or secondary-side opening. There is formed in the main body'"'"'s air exhaust aperture a pipe connection to which can be connected a restrictor. In another embodiment an extension pipe is connected to such pipe connection in such air exhaust aperture. Such pipe extension forms a bend portion which causes its opening surface to be positioned lower than a generally horizontal direction when, in accordance with the state in which the main body is fitted to a railway vehicle, its air exhaust aperture is positioned upwardly from such horizontal direction.
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Citations
7 Claims
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1. A ball cock valve for a railway vehicle, said ball cock valve comprises:
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(a) a main body portion possessing a primary-side opening and a secondary-side opening which face one another and an air exhaust aperture formed between said primary-side opening and said secondary-side opening, said air exhaust aperture being threaded; (b) a ball-shaped valve body rotatably disposed inside a cavity formed in said main body portion, said ball-shaped valve body having a communication aperture formed therein which connects said primary-side opening and said secondary-side opening and a side aperture which, consequent to its rotation, connects said air exhaust aperture and one of said primary-side opening and said secondary-side opening; and (c) a restrictor means threadably connected to said air exhaust aperture of said main body portion for restricting flow of air from said ball cock valve. - View Dependent Claims (2)
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3. A ball cock valve for a railway vehicle, said ball cock valve comprises:
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(a) a main body portion possessing a primary-side opening and a secondary-side opening which face one another and an air exhaust aperture formed between said primary-side opening and said secondary-side opening; (b) a ball-shaved valve body rotatable disposed inside a cavity formed in said main body portion, said ball-shaped valve body having a communication aperture formed therein which connects said primary-side opening and said secondary-side opening and a side aperture which, consequent to its rotation, connects said air exhaust aperture and one of said primary-side opening and said secondary-side opening; and (c) an extension pipe connected at a first end thereof to said air exhaust aperture, said extension pipe being hard rubber. - View Dependent Claims (4, 5, 6, 7)
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Specification