Fluid handling – Removable valve head and seat unit – Retained by bonnet or closure
Patent
1993-09-30
1995-06-13
Rivell, John
Fluid handling
Removable valve head and seat unit
Retained by bonnet or closure
251282, 251295, 239526, 239586, F16K 3902, B05B 130
Patent
active
054233488
ABSTRACT:
In accordance with an illustrative embodiment of a high pressure water blast gun as disclosed herein, such gun includes a valve body having inlet and outlet ports and an internal chamber, and a removable valve cartridge in the chamber which includes a guide tube and a valve closure element slidably arranged in the tube. The closure element includes a leading end portion having a peripheral edge that engages an inclined seat surface in the guide tube with line contact on a first diameter, and a trailing end portion which is sealed against the guide tube on a second diameter which is greater than the first diameter to provide a hydraulic bias force that tends to close the valve against the seat. Both hand and foot operated embodiments are disclosed.
REFERENCES:
patent: 1320944 (1919-11-01), Thoens
patent: 1861916 (1932-06-01), Hennebohle
patent: 3019810 (1962-02-01), Aymar et al.
patent: 3037740 (1962-06-01), Sheps et al.
patent: 3272393 (1966-09-01), Roeser
patent: 3294362 (1966-12-01), Schultz
patent: 4199132 (1980-04-01), de Mey, II
patent: 4593858 (1986-06-01), Pacht
patent: 5224686 (1993-06-01), Pacht
patent: 5297777 (1994-03-01), Yie
Jezek Paul D.
Stachowiak J. Edward
Rivell John
Stachowiak J. Edward
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