US PATENT SUBCLASS 137 / 499-- .~.~.~ Turbine or swinging vane type reactor

US PATENT SUBCLASS 137 / 499
.~.~.~ Turbine or swinging vane type reactor

Current as of: June, 1999
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137 /	HD	FLUID HANDLING

455	DF	LINE CONDITION CHANGE RESPONSIVE VALVES {11}
494	DF	.~ With separate connected fluid reactor surface {8}
497	DF	.~.~ Responsive to change in rate of fluid flow {4}
499		.~.~.~ Turbine or swinging vane type reactor

DEFINITION

Classification: 137/499

(under subclass 497) Apparatus wherein the separate reactor surface is a member pivoted for oscillation or rotation, having blades, vanes or surfaces which are exposed to the fluid flow and rotating or tending to rotate the member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47+, for speed responsive governors for valves having, as driving means for the governor, a turbine exposed to the

fluid flow in a conduit, in which the turbine is not a prime mover.

332, for valves having a nonvalving motion imparted by a turbine on the valve, as for friction reducing or antifouling purposes.

SEE OR SEARCH CLASS

222, Dispensing, 59+, for dispensers having cut-offs operated by rate of flow responsive means.

251, Valves and Valve Actuation,

15+, for valves which are closed after a flow period by fluid actuated means, and subclasses 48+ for valve retarders or timers of the fluid controlled type.