Pressure balanced valve with integral pressure relief function
AssigneeFox Factory, Inc.
InventorsThomas Holaday, Season Chu, William O. Brown, IV, Joshua Coaplen
Life of this patent
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Abstract
A pressure balanced valve with integral pressure relief function is disclosed. The pressure relief valve includes a cap with an opening therein, a plunger configured to fill the opening in the cap, and a spring configured to hold the plunger against the cap. The pressure relief valve providing a fluid pathway through a piston, wherein the fluid pathway extends between a first fluid chamber and a second fluid chamber and provides a bypass for fluid to flow from the second fluid chamber to the first fluid chamber when a pressure of a fluid in the second fluid chamber is above a blow-off pressure of the pressure relief valve.
Claims14
A dropper seatpost comprising:
- a first post;
- a second post, said first post telescopically engaging said second post;
- a piston coupled to said second post, said piston comprising:
- a first fluid pathway;
- a fluid chamber enclosed within said telescopically engaged said first post and said second post, said piston separating said fluid chamber into a first portion and a second portion;
- and
- a pressure relief valve disposed at least partially within said piston, said pressure relief valve comprising:
- a cap with an opening therein;
- a plunger configured to fill said opening in said cap;
- and
- a spring configured to hold said plunger against said cap, said pressure relief valve providing a fluid pathway through said piston when a pressure of a fluid in said second portion of said fluid chamber is above a blow-off pressure of said pressure relief valve;
- and
- wherein said cap of said pressure relief valve is threadedly coupled with a body of said piston to provide a threaded coupling between said cap of said pressure relief valve and said body of said piston.
Dependencies are inferred from the claim text.