Fluid handling – With lock or seal – Locks against rotary motion
Patent
1988-04-20
1989-04-04
Rosenthal, Arnold
Fluid handling
With lock or seal
Locks against rotary motion
251292, 251293, F16K 3146
Patent
active
048176630
ABSTRACT:
A fluid control valve stem extension and locking device includes a rod member to extend the valve stem with a lower end bored and threaded to threadably engage the exposed end of the valve stem with set screws extending horizontally into the bore opening to bear on the sides of the valve stem, the upper of the extension rod shaped to duplicate the shape of the exposed end of the valve stem and a detached plate having a hole shape to interfit over the exposed end of the valve stem coupled to move with turning of the valve stem and including a stop device duplicating the function of the stopping device used in the valve with a locking mechanism including a cylindrical tube sized to interfit over the stem extension device with an attachment plate structurally attached to the lower end of the tube with a horizontal radial plate structurally attached to the outside surface of the upper end of the tube with two holes corresponding to the valve positions and a locking plate with an opening to interfit over the shape at the upper end of the rod to couple with and move in conjunction with the turning of the valve stem and having a hole to align with either of the two holes in the radial plate and receive a pad lock.
REFERENCES:
patent: 400944 (1889-04-01), Powell
patent: 905172 (1908-12-01), Godson
patent: 1082935 (1913-12-01), Cross
patent: 1111865 (1914-09-01), Serrell
patent: 1181565 (1916-05-01), Block
patent: 1355544 (1920-10-01), Drane et al.
patent: 1360340 (1920-11-01), Wetzler
patent: 1433139 (1922-10-01), Lofton
patent: 1434846 (1922-11-01), Schwiesow
patent: 1482008 (1924-01-01), Haisley
patent: 1754310 (1930-04-01), Ellenberger
patent: 1878569 (1932-09-01), Zolleis
patent: 2138530 (1938-11-01), Wagner
patent: 2198455 (1940-04-01), Mueller et al.
patent: 2431527 (1947-11-01), Walters
patent: 3582116 (1971-06-01), Young
Watt Ball Valve Options and Accessories, Watts Regulator Company.
Jamesbury Specifications Bulletin B160-3, Jamesbury Corp. 1985.
The Jamesbury stem extension devices, specifically style A, B, valve design is, based on communcations directly with the company, attached in the factory such that the extension is threadably engaged on the stem and the "indicator stop" is welded to the extension. Once welded, the extension cannot be removed without breaking the weld.
Lennox Thomas A.
Rosenthal Arnold
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