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US 7,111,875 B2Granted
Wall hydrant with slip clutch assembly
AssigneeWCM Industries, Inc.
InventorWilliam T Ball
Life of this patent
Estimating the term…
Abstract
A hydrant for use with a plumbing outlet pipe has a fluid passage passing from an inlet end to an outlet end and a retention body connected to the inlet end. A slip clutch adapted to contractibly receive the pipe and prevent reverse pipe movement therethrough is located within the retention body. The slip clutch comprises a retaining ring having a plurality of sloped spring fingers normally allowing pipe movement in a linkage-contracting direction but preventing reverse pipe movement.
Claims7
A hydrant used in combination with a pipe comprising:
- a hydrant body having a fluid passage passing from an inlet end to an outlet end;
- a slip clutch assembly connected to the inlet end, the slip clutch assembly adapted to retain the pipe;
- said slip clutch assembly comprises a retaining ring having a plurality of sloped spring fingers around said pipe;
- said fingers having inside surfaces toward said pipe and outside surfaces away from said pipe;
- said fingers having an inherent bias toward said pipe;
- said spring fingers having pipe engaging ends allowing pipe movement in a first direction therethrough but preventing reverse pipe movement therethrough in an opposite direction;
- a deactuator in engagement with said inside surfaces of said sloped fingers to shift said fingers against the inherent bias of the fingers to allow said reverse pipe movement;
- a rim affixed within the slip clutch assembly to capture the deactuator and the retaining ring;
- and
- wherein the deactuator is slidably retained between the rim and an annular ring.
7 more elements
Dependencies are inferred from the claim text.