Water hammer absorber

Details Water hammer absorber Water hammer absorber

1990-02-21

1991-06-04

Cohan, Alan

Fluid handling

Diverse fluid containing pressure systems

Gas pressure storage over or displacement of liquid

137192, F15B 102

Patent

active

050205650

ABSTRACT:
A water hammer absorber provided in a cold or hot water supply passage including: a tubular portion whose cross section gradually decreases toward a flow direction of cold or hot water until the inner diameter of the portion becomes minimum and then gradually increases toward that direction so that a negative pressure generates therein; and a pressure absorbing chamber which is formed at the minimum inner diametered section of the tubular portion or therearound at the downstream side so as to communicate with the water supply passage and which is provided with a passage-way leading to the atmosphere and a check valve disposed in the passage-way and capable of admitting the entry of air only into the pressure absorbing chamber. The absorber according to the invention is suitably used in the joint of a delivery faucet or a mixing faucet.

REFERENCES:
patent: 3018799 (1958-02-01), Volkmann et al.
patent: 3137316 (1964-06-01), Everett
patent: 3146796 (1964-09-01), Everett
patent: 3444883 (1969-05-01), Slaughter
patent: 3672398 (1972-06-01), Ichiryu et al.
patent: 3942549 (1976-03-01), Tobin
patent: 4344752 (1982-08-01), Gallagher
patent: 4518005 (1985-05-01), Allewitz
Soviet Inventions Illustrated, Section P,Q, Week E17, Jun. 9, 1982, Q67, p. 14.

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