Thermal expansion chambers for airtight containers

Details Thermal expansion chambers for airtight containers Thermal expansion chambers for airtight containers

2005-09-20

2011-11-22

Kramer, Devon C (Department: 3746)

Pumps

Miscellaneous

C417S065000, C417S540000

Reexamination Certificate

active

08062010

ABSTRACT:
A hydraulic pump has a rotor and a hollow housing with a main interior chamber. The rotor is rotatably mounted in the main interior chamber. A smaller interior chamber is separated from the main interior chamber such that the smaller interior chamber retains gas therein when the main interior chamber is filled with a liquid. There is also a method for accommodating changes in volume of hydraulic fluid within the main chamber of the hydraulic pump housing. The method comprises providing the smaller interior chamber separated from the main chamber and retaining gas within the smaller chamber when the main interior chamber is filled with liquid, whereby expansion or contraction of the gas accommodates changes of volume of the liquid within the housing.

REFERENCES:
patent: 54073 (1866-04-01), Sewel
patent: 832710 (1906-10-01), Wade
patent: 954916 (1910-04-01), Bewan
patent: 973474 (1910-10-01), Cameron
patent: 1150122 (1915-08-01), Jaawne
patent: 1155070 (1915-09-01), Kessler
patent: 1192134 (1916-07-01), Stevens
patent: 1304195 (1919-05-01), Noeth et al.
patent: 2531765 (1950-11-01), Burress
patent: 3064307 (1952-11-01), Sanborn
patent: 3180376 (1965-04-01), Sanborn
patent: 3426691 (1969-02-01), Anderson
patent: 3483656 (1969-12-01), Baumann
patent: 3853147 (1974-12-01), Cibulka
patent: 4028444 (1977-06-01), Brown et al.
patent: 4201056 (1980-05-01), De Martelaere et al.
patent: 4210176 (1980-07-01), Emming
patent: 4355512 (1982-10-01), Kubota et al.
patent: 4445829 (1984-05-01), Miller
patent: 4487021 (1984-12-01), Arakawa et al.
patent: 4514151 (1985-04-01), Anders et al.
patent: 4525126 (1985-06-01), Laumont
patent: 4759659 (1988-07-01), Copie
patent: 4805668 (1989-02-01), Genter et al.
patent: 5081908 (1992-01-01), McBeth et al.
patent: 5137431 (1992-08-01), Kiyoshi et al.
patent: 5277552 (1994-01-01), Higuchi
patent: 5282725 (1994-02-01), Shimizu
patent: 5356535 (1994-10-01), Ueno et al.
patent: 5413468 (1995-05-01), Tuckey
patent: 5796197 (1998-08-01), Bookout
patent: 5957545 (1999-09-01), Sawada et al.
patent: 6268672 (2001-07-01), Straub et al.
patent: 6692166 (2004-02-01), Ansell et al.
patent: 7171982 (2007-02-01), Dudra
patent: 7246636 (2007-07-01), Dudra
patent: 2003/0155015 (2003-08-01), Dudra et al.
U.S. Appl. No. 10/076,612, filed Aug. 2003, Dudra et al.

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