Relief valve
AssigneeConbraco Industries, Inc.
InventorsBertito Tubo Rodriguez, Gregory Dean Goodson
Life of this patent
Estimating the term…
Abstract
A relief valve for relieving pressure in a fluid conduit that includes a cradle positioned in the relief valve conduit and having a ball support surface and a ball mounted on the ball support surface adapted for sealing against the valve seat of the pressure relief port. A spring supported surface and a spring positioned in the pressure relief conduit urges the cradle and the ball into sealing position against the valve seat of the pressure relief port.
Claims15
A relief valve for relieving pressure in a fluid conduit, comprising:
- (a) a relief valve body in fluid communication with a fluid pressure system;
- (b) a relief valve conduit formed in the relief valve body and having a valve seat positioned around a pressure relief port at one end of the conduit adapted for communication with the fluid pressure system and a discharge vent in an opposite end of the conduit;
- (c) a cradle positioned in the relief valve conduit that includes:
- (i) a ball support surface and a ball positioned on the ball support surface, the ball is adapted for sealing against the valve seat of the pressure relief port;
- (ii) a spring support surface;
- and
- (iii) a plurality of spacers positioned between the ball support surface and spring support surface, the spacers form at least one flow port that permits fluid flow through and around the cradle;
- and
- (d) a spring positioned adjacent the spring support surface and adapted to urge the cradle and the ball into sealing position against the valve seat of the pressure relief port when a predetermined load of the spring is not exceeded.
A water heater shutoff/thermal expansion control valve adapted for being positioned in flow communication with a water pressure system, and including pressure relief valve for relieving pressure in the system above a predetermined level, the pressure relief valve comprising:
- (a) a relief valve body adapted for fluid communication with a fluid pressure system;
- (b) a relief valve conduit formed in the relief valve body and having a valve seat positioned around a pressure relief port at one end of the conduit adapted for communication with the fluid pressure system and a discharge vent in an opposite end of the conduit;
- (c) a cradle positioned in the relief valve conduit that includes:
- (i) a ball support surface and a ball positioned on the ball support surface, the ball is adapted for sealing against the valve seat of the pressure relief port;
- (ii) a spring support surface;
- and
- (iii) a plurality of spacers positioned between the ball support surface and spring support surface, the spacers form at least one flow port that permits fluid flow through and around the cradle;
- and
- (d) a spring positioned adjacent the spring support surface and adapted to urge the cradle and the ball into sealing position against the valve seat of the pressure relief port when a predetermined load of the spring is not exceeded.
Dependencies are inferred from the claim text.