Patent ID: 6394125
Filing Date: 2002-05-28
Classification: E03B,Y10T

Abstract:
A combination leak-containing sheath and frost-resistant wall hydrant comprising:a frost-resistant wall hydrant having: a metal, wall-penetrating conduit extending between an indoor inlet end provided with an externally-threaded portion and an outdoor apertured actuator end; a wall-mounting flange affixed to the conduit intermediate the outdoor and indoor ends, wherein said conduit is provided with a lateral outlet that discharges to the outdoors and is formed with an internal valve seat intermediate the flange and inlet end; an actuating member comprising an elongated shaft that extends through the apertured actuator end to terminate inside the conduit in a valving member that is movable axially relative to the inlet valve seat, and terminating outdoors in a hand-portion allowing operative actuation and hence opening and closing the valving member relative to the inlet valve seat; whereby the valve seat is located in a presumptively above-freezing indoor climate and spaced back from the wall flange and hence the outdoors so as to reduce the chances of freezing outdoor temperatures from freezing any water stopped behind the valve seat; and a leak-containing sheath being a device having a metal tubular body extending between spaced open ends of which one end is fitted with a peripheral rim-forming fitting and the other end forms a reduced-down-bell formation the very termination of which is cylindrically hollow, sized and adapted for a solder connection with a given indoor plumbing line, said rim-forming fitting and that much of the tubular body that excludes the reduced-down-bell formation defining a lumen being diametrically sized to telescope over the hydrant's inlet end until the sheath's rim-forming fitting mates against the hydrant's flange, wherein said reduced-down-bell formation internally flares out in the direction toward the end with the rim-forming fitting and being formed with an internally-threaded portion for the externally-threaded portion of the hydrant's inlet end to screw into and correspondingly said sheath device is axially sized such that with the rim-forming fitting abutting the hydrant's flange the reduced-down-bell formation's internally-threaded portion allows a screw connection and seal with the hydrant's inlet end's externally-threaded portion, wherein said sheath's rim-forming fitting is formed with a vent for venting leakwater from the hydrant outdoors and not indoors in cases if the hydrant leaks as being burst by freezing because water got stopped in the conduit between the valve seat and outlet and failed to drain despite an open outlet.