Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1980-04-15
1981-07-28
Schwadron, Martin P.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
251315, 251316, F16K 4300
Patent
active
042805260
ABSTRACT:
A valve, such as a ball valve of known configuration, is provided with an elongated housing which has an open end the internal diameter of which is sufficiently large to permit the insertion of a ball valve member into the housing during assembly of the valve. The open end of the housing is internally threaded and receives a hollow cylindrical externally threaded end plug which is screwed into the open end of the housing following insertion of the ball to retain the ball in place within the housing. The end plug is provided with a plurality of notches that are spaced from one another about the end plug axis, and, after the valve has been completely assembled, portions of the housing adjacent the said open end are deformed to provide locking tabs which extend into the end plug notches to prevent rotation of the end plug. The number of notches provided is preferably greater than the number of locking tabs so that, if the valve should be disassembled for purposes of repair or maintenance by removal of the locking tabs provided at the time of original assembly, new locking tabs can be deformed from the housing at locations angularly displaced from the positions of the original locking tabs for insertion into others of the end plug notches when the valve is reassembled.
REFERENCES:
patent: 1697232 (1929-01-01), Ewald
patent: 2995336 (1961-08-01), Usab
patent: 3016226 (1962-01-01), Freeman
patent: 3234958 (1966-02-01), Butters
patent: 3438387 (1969-04-01), Scaramucci
patent: 3717323 (1973-02-01), Geipel
Schwadron Martin P.
Walton G. L.
Worcester Controls Corp.
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