Anthony Manufacturing Corp.

Clemar Manufacturing Corp.

Anthony Manufacturing, Co.

Charles A Ray

Fred J Szekely

John L Kent

Samuel C Walker

An improved locking assembly is provided for releasably locking a valve unit incorporated into a sprinkler housing or the like, wherein the locking assembly prevents the valve unit from being driven from the housing as a projectile by water under pressure at the upstream side of the valve unit. The valve unit includes a mounting ring normally held seated upon a shoulder seat within the base of the sprikler housing by the locking assembly including a stacked pair of snap rings installed into an enlarged housing lock groove thereby positioning a movable valve member in association with a valve seat to control water flow into the sprinkler housing. The valve unit is removable from the housing, for example, for maintenance purposes by removing the two snap rings one at a time. In the event the first snap ring is removed without prior relieving of water pressure at the upstream side of the valve unit, the water pressure lifts the valve unit from the valve seat to permit water flow into the housing while the second snap ring remains locked within the lock groove to block valve unit removal. When the water flow is turned off, the valve unit is removable quickly and easily by removal of the second snap ring.

Releasable locking assembly for sprinkler valve units

For use with a pop-up sprinkler of the full or part circle type, a multi-purpose seal is provided between the movable stem of the pop-up sprinkler and a stationary mounting base which is fixed with respect to the sprinkler housing. The seal is preferably a unitary molded article and includes a grit wiper at its upper end, a central bearing to slidingly guide the stem within the housing, a sliding water-activated seal, and an annular static seal for providing a watertight seal between the movable stem and stationary housing during normal operation of the sprinkler.

Multi-purpose seal for pop-up sprinkler

For use with a remotely actuated fluid supply valve, an internally balanced pressure regulating module is provided for regulating the pressure downstream of the valve by modulating the rate at which fluid is bled from a closure chamber of the valve in response to downstream pressure. The module includes a flow restricting member arranged at the open end of a cylinder and having a first surface facing the open end of the cylinder and a second surface facing outwardly of the cylinder and exposed to downstream pressure. The flow restricting member is secured to a piston in the cylinder which is resiliently biased toward the open end of the cylinder, and the downstream pressure acting on the second surface urges the first surface against the force of the biasing means, into a flow restricting relationship with the open end of the cylinder.

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Arcadia, CA, United States of America

Charles A Ray