Plumbing valve
AssigneeQest Products, Inc.
InventorRalph Haffner
Life of this patent
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Abstract
A plumbing valve having a plastic body with a lateral outlet and adapted for threaded connection with a metal pipe and including a resilient seal engaged and compressible upon connection of said valve body and pipe to maintain a seal therebetween incident to varying rates of expansion and contraction of said valve body and pipe with temperature changes. The valve has a rotatable actuator with an eccentric longitudinal part mounting a resilient tube having a portion pressed into contact with the cavity of the body to seal the outlet in one position and a second longitudinal part spaced from said concentric part and cooperating therewith to confine a part of said tube against radial expansion incident to liquid pressure from said metal supply pipe and retaining said tube against endwise displacement on said eccentric part.
Claims7
A plumbing valve comprising
- a tubular valve body having an internally threaded enlarged portion at one end defining an annular internal shoulder, a reduced neck portion at its opposite end defining a second annular internal shoulder, and a lateral outlet passage between and spaced from said shoulders,
- a valve actuator rotatable in said valve body and having a stem projecting from said neck, said actuator including an enlarged circular portion in said body spaced from and confronting said second shoulder and an elongated longitudinal eccentric part positioned within said valve body with clearance,
- a resilient tube encircling said eccentric actuator part and having contact with two longitudinal portions of said actuator and two spaced portions of the bore of said tubular valve body and having clearance from said actuator between said contact portions and open at its end adjacent said enlarged body end portion to accommodate radial expansion thereof by liquid pressure to sealingly engage a portion of said valve body surrounding the mouth of said outlet passage in one operative rotative position of said actuator, said tube engaging a portion of said valve body remote from said outlet in another rotative position of said actuator,
- an annular sealing ring interposed between said second shoulder of said body and said enlarged circular portion of said actuator, and
- an annular resilient compressible seal member within said threaded body end portion in engagement with said first annular shoulder and engageable and compressible by an inlet pipe threaded in said body end portion.
Dependencies are inferred from the claim text.