F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 15/18 (2006.01) E21B 31/107 (2006.01) E21B 34/06 (2006.01) E21B 43/12 (2006.01) F04B 7/00 (2006.01) F04B 53/10 (2006.01) F04B 53/12 (2006.01)
Patent
CA 2191955
Disclosed is an assembly for unseating a seated traveling valve ball (75), and pumps utilizing such an assembly. The assembly generally includes a tubular member having therein a piston (40) with an actuator (41) for engaging the ball. Mechanical advantage is provided either by providing a sealing area of the piston that is greater than the sealing area of the seat valve and/or by providing an engaging member (141) suitable to strike the seated ball asymmetrically with respect to the vertical axis through the center line of the ball.
On décrit un ensemble qui permet de dégager une bille de clapet de refoulement de son siège et des pompes qui comprennent cet ensemble, lequel comporte, de façon générale, un élément tubulaire contenant un piston, ainsi qu'un actuateur entrant en prise avec la bille. Un avantage mécanique provient d'une zone d'obturation du piston qui est plus grande que celle du clapet à siège et/ou d'un élément destiné à entrer en prise et conçu pour frapper une bille disposée sur son siège de façon asymétrique par rapport à l'axe vertical traversant le centre de cette bille.
Kirby Eades Gale Baker
Nelson Joe A. II
LandOfFree
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