F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
251/52
F16K 25/00 (2006.01)
Patent
CA 1245618
ABSTRACT OF THE DISCLOSURE A ball valve in which the ball of the valve is positively prevented from blowing out of the valve body in both directions, even if the valve is connected in the wrong direction or the fluid pressure is applied to the valve in the opposite direction. The ball is arranged in a valve body to selectively open and close a fluid passage in the body, and annular seals abut against the ball from both sides of the fluid passage, the annular seals being pushed towards the ball by seal carriers. In one embodiment, one of the seal carriers has a flange on the periphery of one end thereof, and the flange is locked to a step from inside which is formed on inner surface of one end portion of the valve body. In a second embodiment, the ball additionally has two grooves with abutting walls in respective ones of which a spindle and a pin coaxial with the spindle are fitted with the abutting walls positioned on the side of the one seal carrier.
465570
Asano Teruyoshi
Bando Yoshiaki
Kato Shigenobu
Tanioka Katsuhiko
Riches Mckenzie & Herbert Llp
Sekisui Kagaku Kogyo Kabushiki Kaisha
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