Fluid handling – With casing – support – protector or static constructional... – Jacketed
Patent
1992-04-22
1993-08-17
Chambers, Michael
Fluid handling
With casing, support, protector or static constructional...
Jacketed
137559, 251288, 251292, 251285, F16L 700, F16K 5100
Patent
active
052360067
ABSTRACT:
A valve extension actuator subassembly for rotating an extending valve stem of an HVAC valve, having a rotational, polymeric, cylindrical, hollow projection body extending on a central axis coaxial with the valve stem, having an inner end and an outer end, and defining a central space therein, a transverse polymeric handle on the outer end of the projection body, a metal valve plate at said inner end of the projection body, rotatable therewith, and receiving the extended valve stem to rotate it, a removable thermal insulative plug in the central space for thermally insulating the subassembly, and a removable cap closing the outer end of the body. Connection of the body to the valve plate preferably includes snap-on detents. The body preferably has drive lugs interfitting with the valve plate. One embodiment has an adjustable memory stop plate serving as the valve plate, the stop mechanism being accessible with a tool extended through the central space of the body after removing the insert and cap. Another embodiment has interfitting spline teeth on the plug and the body, plus a stop lug on the inner end of the plug, to enable memory stop adjustment by removal and angular rotation of the plug, followed by reinsertion into engagement with the body.
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Leonhard Don A.
Platusich Bruce M.
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