Thermal expansion arrester for water heaters

Details Thermal expansion arrester for water heaters Thermal expansion arrester for water heaters

2005-07-26

2005-07-26

Wilson, Gregory (Department: 3749)

Liquid heaters and vaporizers

Stand boiler

And condition responsive feature

C122S504000

Reexamination Certificate

active

06920844

ABSTRACT:
A thermal expansion arrester for positioning within the tank of a water heater comprises a rigid tube maintaining a compressible volume of gas between first and second closure members wherein at least one of the closure members comprises a piston that is slidably and sealingly secured within the tube. In a preferred embodiment both closure members comprise pistons held in the tube by crimping its ends. In an uncompressed state the pressure of the gas within the tube is sixty psig.

REFERENCES:
patent: 1338760 (1920-05-01), Wells
patent: 3381110 (1968-04-01), Fischer
patent: 3581057 (1971-05-01), Meyers
patent: 3754563 (1973-08-01), Boals
patent: 3891124 (1975-06-01), Dreibelbis
patent: 4819698 (1989-04-01), Ismert
patent: 4862834 (1989-09-01), Kurz
patent: 4906817 (1990-03-01), Kurz
patent: 4930551 (1990-06-01), Haws
patent: 4990746 (1991-02-01), Hammond
patent: 5555997 (1996-09-01), Nogles
patent: 5584316 (1996-12-01), Lund
patent: 5690061 (1997-11-01), Lopez
patent: 6041742 (2000-03-01), Drake
patent: 6418969 (2002-07-01), Bertagna
patent: 2273972 (1994-07-01), None

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