Ball valve with cartridge
First Claim
1. In a ball valve, the combination comprising:
- (a) a valve body having a chamber, aligned inlet and outlet passages providing flow therethrough, and an access passage communicating with said chamber; and
(b) a replaceable cartridge assembly seated in said chamber and including;
(i) a generally spherical ball having a flow passage therethrough alignable with said inlet and outlet passages;
(ii) an inlet valve seat seating a peripheral portion of said ball and extending about said inlet passage;
(iii) an outlet valve seat seating a peripheral portion of said ball and extending about said outlet passage;
(iv) first resiliently deflectable biasing means extending about the inlet end of said cartridge body; and
(v) second resiliently deflectable biasing means biasing said inlet valve seat against said ball and said outlet seat;
(vi) a cartridge body member extending about and coupling said second biasing means, ball and said valve seats; and
(vii) deflecting means movable between a first position in which said first biasing means is substantially free from deflection and a second position deflecting said first biasing means, said first biasing means biasing said cartridge body and said outlet valve seat against the wall of said valve body chamber to effect a seat-to-body seal.
2 Assignments
0 Petitions
Accused Products
Abstract
A ball valve has a valve body having a chamber, aligned inlet and outlet passages providing flow therethrough, and an access passage communicating with the chamber. A replaceable cartridge assembly is seated in the chamber and includes a generally spherical ball having a flow passage therethrough alignable with the inlet and outlet passages, an inlet valve seat, and an outlet valve seat. A cartridge body member extends about and couples the ball and the valve seats. A resiliently deflectable biasing member biases the inlet valve seat and the ball against the outlet seat. A resiliently deflectable biasing member acts upon the inlet end of the cartridge body and a deflector is movable between a first position in which the biasing member is substantially free from deflection and a second position in which the biasing member is deflected to bias the cartridge body and the outlet valve seat against the wall of the valve body chamber to effect a seat-to-body seal.
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Citations
15 Claims
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1. In a ball valve, the combination comprising:
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(a) a valve body having a chamber, aligned inlet and outlet passages providing flow therethrough, and an access passage communicating with said chamber; and (b) a replaceable cartridge assembly seated in said chamber and including; (i) a generally spherical ball having a flow passage therethrough alignable with said inlet and outlet passages; (ii) an inlet valve seat seating a peripheral portion of said ball and extending about said inlet passage; (iii) an outlet valve seat seating a peripheral portion of said ball and extending about said outlet passage; (iv) first resiliently deflectable biasing means extending about the inlet end of said cartridge body; and (v) second resiliently deflectable biasing means biasing said inlet valve seat against said ball and said outlet seat; (vi) a cartridge body member extending about and coupling said second biasing means, ball and said valve seats; and (vii) deflecting means movable between a first position in which said first biasing means is substantially free from deflection and a second position deflecting said first biasing means, said first biasing means biasing said cartridge body and said outlet valve seat against the wall of said valve body chamber to effect a seat-to-body seal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a ball valve, the combination comprising:
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(a) a valve body having a chamber, aligned inlet and outlet passages providing straight through flow, and an access passage communicating with said chamber; and (b) a replaceable cartridge assembly seated in said chamber and including; (i) a generally spherical ball having a flow passage therethrough alignable with said inlet and outlet passages; (ii) an inlet valve seat seating a peripheral portion of said ball and extending about said inlet passage; (iii) an outlet valve seat seating a peripheral portion of said ball and extending about said outlet passage; (iv) first resiliently deflectable biasing means extending about the inlet end of said cartridge body; and (v) second resiliently deflectable biasing means biasing said inlet valve seat against said ball and said outlet seat; (vi) a cartridge body member extending about and coupling said second biasing means, ball and said value seats; and (vii) deflecting means movable between a first position in which said first biasing means is substantially free from deflection and a second position deflecting said first biasing means, said first biasing means biasing said cartridge body and said outlet valve seat against the wall of said valve body chamber to effect a seat-to-body seal. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification