In-line water hammer arrester
AssigneeLSP Products Group, Inc.
InventorsDuane Condon, Bill Ghiglieri
Life of this patent
Estimating the term…
Abstract
An in-line water hammer arrester comprises a housing connectable at each end to a piping system, a fluid channel disposed within the housing to permit fluid to flow from the piping system through the housing and back into the piping system, a piston and a pressurized gas chamber. When a pressure spike occurs, the piston is pushed against the pressurized gas chamber allowing an expanded area for water flow until the pressure spike is dissipated and the piston returns to its resting position. When used with flexible hoses and tubing typically found with household appliance water supply lines, the in-line arrester is easily installed by a crimping or clamping type connector and takes up little space.
Claims18
A pressure spike reducing apparatus comprising:
- a housing connectable at each end to a pipe or hose through which fluid may flow, the housing having a fluid channel to permit the flow of fluid from the pipe or hose at one end of the housing through to the pipe or hose at the other end of the housing;
- a piston disposed within the housing and around the fluid channel;
- a pressurized gas chamber disposed within the housing;
- a first fitting disposed at the upstream end of the housing and a second fitting disposed at the downstream end of the housing, each fitting comprising a substantially cylindrical body disposed inside the housing and a neck extending outwardly from the housing that is engageable with the pipe or hose;
- and
- wherein the second fitting further comprises a shaft extending inwardly from the substantially cylindrical body, wherein such shaft forms part of the fluid channel.
An in-line water hammer arrester comprising:
- a housing;
- a first fitting disposed at an upstream end of the housing comprising a neck extending outwardly from the housing for engagement with a pipe or hose and a body disposed inside the housing;
- a second fitting disposed at a downstream end of the housing comprising a neck extending outwardly from the housing for engagement with a pipe or hose, a body disposed inside the housing, and a shaft extending inwardly from the body;
- a piston disposed within the housing between inwardly facing ends of the first and second fittings and around the shaft;
- a pressurized gas chamber disposed within the housing between the downstream end of the piston and the inwardly facing end of the body of the fitting disposed at the downstream end of the housing;
- and
- a fluid channel to permit the flow of fluid from the upstream end of the housing out through the downstream end of the housing, the channel comprising interior portions of the shaft and the necks and bodies of the first and second fittings.
Dependencies are inferred from the claim text.