Apparatus for use in servicing valves

Details Apparatus for use in servicing valves Apparatus for use in servicing valves

1992-04-22

1993-07-20

Watson, Robert C.

Metal working

Means to assemble or disassemble

Valve applying or removing

B23P 1904

Patent

active

052281787

ABSTRACT:
Apparatus for radiator valve servicing has a main body 1 including a valve 5 and an adaptor 2 connecting the main body to a valve assembly support body 102. Mounted for movement within the main body is an extractor 3 comprising a shaft 30 and coupler 31 which is connected by a bayonet fitting 39,40 to the shaft and mechanically connected by a screw 37 to the valve assembly spindle 103. The coupler includes a socket 33 which fits on and facilitates unscrewing of the spindle and valve assembly from the support body. After being unscrewed, the valve assembly can be lifted past the valve 5 and, after closing the valve, withdrawn reliably from the main body because of the screw connection for servicing. A selection of adaptors and couplers enable a range of different valve systems to be serviced without draindown.

REFERENCES:
patent: 2517870 (1950-08-01), Gump
patent: 4305193 (1981-12-01), Anderson
patent: 4550481 (1985-11-01), Preston
patent: 4597147 (1986-07-01), Henry
patent: 4599776 (1986-07-01), Haggard et al.

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