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US 4,609,177 AGranted
Valve
AssigneeBrassCraft Manufacturing Company
InventorsLarry G. Turner, Leo S. Stanish, Manfred Kuttruff, Walter J. Budzinski, Robert MacDonald
Life of this patent
Estimating the term…
Abstract
A three-piece angle stop valve comprises a valve body, resilient control sleeve and handle, with no separate fastening or sealing elements required. Inlet line pressure resiliently biases the side walls of the control sleeve and a circumferential sealing flap formed thereon into sealing engagement with the valve bore to prevent leakage. The handle is secured to the valve body by resilient formations which snap into a circumferential groove on the valve body. The handle rotates the control sleeve by means of telescoping splines. Several circumferential and axial reinforcing ribs are formed on the interior of the control sleeve.
Claims12
A plumbing valve comprising:
- a valve body having an inlet bore and and outlet bore;
- a resilient control sleeve located within said valve body for rotation therein, said sleeve being open at one axial end and closed at the other axial end, and having a side wall of circular cross-section between said ends, said side wall having at least one port;
- said control sleeve side wall having a first portion contoured and dimensioned to be snuggly but rotatably received within a sleeve receiving bore of said valve body, said valve body sleeve bore communicating with both said inlet and said outlet bores;
- a handle connected to said closed end of said control sleeve for rotating said control sleeve between a closed position of the valve, wherein said side wall blocks communication between said inlet and outlet bores, thereby preventing fluid from flowing through the valve, and an open position of the valve wherein a flow path is established between said inlet and outlet bores via said port and the interior of said control sleeve;
- said valve body and said control sleeve being constructed to maintain continuous communication between said inlet bore and the interior of said control sleeve, to thereby pressurize said interior and resiliently bias said side wall radially outwardly against said valve body sleeve bore;
- said valve body sleeve bore having a collar portion of smaller internal diameter than the adjacent portions of said valve body sleeve bore on each side of said collar, said diameter of said collar portion also being less than said outer diameter of said first portion of said control sleeve, whereby said collar acts as a stop to limit axial travel of said control sleeve along the length of said valve body sleeve bore;
- said first portion of said control sleeve having a circumferential groove and a circumferential sealing flap located between said groove and said collar portion, said sealing flap having an outer diameter greater than the internal diameter of the opposed portion of said valve body sleeve bore and contoured to pivot radially inwardly and axially toward said open end of said sleeve bore and partially into said circumferential groove as a result of the interference fit with the walls of said valve body sleeve bore.
4 more elements
A plumbing valve comprising:
- a valve body having an inlet bore and an outlet bore;
- a resilient control sleeve located within said valve body for rotation therein, said sleeve being open at one axial end and closed at the other axial end, and having a side wall of circular cross-section between said ends, said side wall having at least one port;
- said control sleeve side wall having a first portion contoured and dimensioned to be snuggly but rotatably received within a sleeve receiving bore of said valve body, said valve body sleeve bore communicating with both said inlet and said outlet bores;
- a handle connected to said closed end of said control sleeve for rotating said control sleeve between a closed position of the valve, wherein said side wall blocks communication between said inlet and outlet bores, thereby preventing fluid from flowing through the valve, and an open position of the valve wherein a flow path is established between said inlet and outlet bores via said port and the interior of said control sleeve;
- said valve body and said control sleeve being constructed to maintain continuous communication between said inlet bore and the interior of said control sleeve, to thereby pressurize said interior and resiliently bias said side wall radially outwardly against said valve body sleeve bore;
- said first portion of said control sleeve side wall having a substantially reduced wall thickness immediately adjacent said open end as compared with the adjacent portions of said first portion side wall, to facilitate radially outward deflection thereof into tighter sealing contact against said valve body sleeve bore during relatively low fluid pressure conditions.
3 more elements
A plumbing valve comprising:
- a valve body having an inlet bore and an outlet bore;
- a resilient control sleeve located within said valve body for rotation therein, said sleeve being open at one axial end and closed at the other axial end, and having a side wall of circular cross-section between said ends, said side wall having at least one port;
- said control sleeve side wall having a first portion contoured and dimensioned to be snuggly but rotatably received within a sleeve receiving bore of said valve body, said valve body sleeve bore communicating with both said inlet and said outlet bores;
- a handle connected to said closed end of said control sleeve for rotating said control sleeve between a closed position of the valve, wherein said side wall blocks communication between said inlet and outlet bores, thereby preventing fluid from flowing through the valve, and an open position of the valve wherein a flow path is established between said inlet and outlet bores via said port and the interior of said control sleeve;
- said valve body and said control sleeve being constructed to maintain continuous communication between said inlet bore and the interior of said control sleeve, to thereby pressurize said interior and resiliently bias said side wall radially outwardly against said valve body sleeve bore;
- said first portion of said control sleeve side wall having a radially inwardly projecting reinforcing rib extending axially therealong, said rib being circumferentially positioned to stiffen the portion of said side wall which blocks said valve body outlet bore in the fully closed position of said valve, thereby to reduce the tendency of high fluid pressure within said control sleeve to cause said side wall to bulge radially outwardly into said outlet bore.
3 more elements
Dependencies are inferred from the claim text.