Vented ball type angle cock
First Claim
1. A ball-type angle cock comprising:
- a. a hollow housing having a pair of passageways opening thereinto to which may be connected respectively an inlet conduit and an outlet conduit,b. a pair of ball seat seals disposed in said hollow housing in opposite spaced-apart relationship and each having a through bore that at one end is in alignment with one end of one of said pair of passageways in said housing, the opposite end being provided with a spherical seat, wherein the improvement comprises;
c. a ball valve element having a passageway therethrogh and so positioned between said ball seat seals in sealing relationship with said spherical seat on each respective ball seat seal as to, in an open position of said element, establish a communication between said inlet conduit and said outlet conduit, said ball valve element also having a pair of intersecting bores therein, one of said bores so intersecting said passageway that the axis thereof forms a right angle with the axis of said passageway,d. a valve stem rotatably mounted in said housing and separably connected to said ball valve element for effecting rotation of said element between said open position and a closed position in which said communication is closed,e. a bushing having a bore therein, said bushing being so disposed in said one bore in said ball valve element that one end of said bore in said bushing is in alignment with one end of the other of said pair of intersecting bores in said ball valve element, andf. a trunnion carried in said housing bore rotatably supporting thereon said bushing and having a passageway so extending therethrough that one end thereof is constantly open to atmosphere and the other end is in alignment with the other end of said bore in said bushing in only said closed position of said ball valve element whereby a venting communication is established between said outlet conduit and atmosphere.
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Accused Products
Abstract
This invention relates to a vented ball-type angle cock for use at each end of the brake pipe on a railway vehicle in which the brake pipe hose connected to the angle cock outlet is vented to atmosphere in the cock closed position via a drilled passageway extending through the ball valve, a guide bushing carried by the ball valve, and a trunnion on one end of which is rotatably supported the bushing, the opposite end of this trunnion being supported on the bottom of the cavity in the angle cock body in which the ball valve is so disposed that in its open position a communication is established between the brake pipe and the hose that is connected to the hose at the adjacent end of the brake pipe on the next car in a train.
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Citations
10 Claims
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1. A ball-type angle cock comprising:
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a. a hollow housing having a pair of passageways opening thereinto to which may be connected respectively an inlet conduit and an outlet conduit, b. a pair of ball seat seals disposed in said hollow housing in opposite spaced-apart relationship and each having a through bore that at one end is in alignment with one end of one of said pair of passageways in said housing, the opposite end being provided with a spherical seat, wherein the improvement comprises; c. a ball valve element having a passageway therethrogh and so positioned between said ball seat seals in sealing relationship with said spherical seat on each respective ball seat seal as to, in an open position of said element, establish a communication between said inlet conduit and said outlet conduit, said ball valve element also having a pair of intersecting bores therein, one of said bores so intersecting said passageway that the axis thereof forms a right angle with the axis of said passageway, d. a valve stem rotatably mounted in said housing and separably connected to said ball valve element for effecting rotation of said element between said open position and a closed position in which said communication is closed, e. a bushing having a bore therein, said bushing being so disposed in said one bore in said ball valve element that one end of said bore in said bushing is in alignment with one end of the other of said pair of intersecting bores in said ball valve element, and f. a trunnion carried in said housing bore rotatably supporting thereon said bushing and having a passageway so extending therethrough that one end thereof is constantly open to atmosphere and the other end is in alignment with the other end of said bore in said bushing in only said closed position of said ball valve element whereby a venting communication is established between said outlet conduit and atmosphere. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification