Fluid handling – With indicator – register – recorder – alarm or inspection means – Fluid pressure responsive indicator – recorder or alarm
Reexamination Certificate
2005-03-31
2009-02-17
Rivell, John (Department: 3753)
Fluid handling
With indicator, register, recorder, alarm or inspection means
Fluid pressure responsive indicator, recorder or alarm
C137S247350, C137S247390, C137S254000, C137S558000
Reexamination Certificate
active
07490624
ABSTRACT:
A valve apparatus includes a housing, which defines an interior chamber, a baffle disposed in the interior chamber, and a volume of liquid. The housing includes first, second and third portions. The first portion includes first and second ports that communicate with the interior chamber. The second portion is spaced from the first portion along a longitudinal axis. And the third portion extends along the longitudinal axis between the first and second portions. The baffle at least partially defines a helical fluid flow path between the first and second ports, and the volume of the liquid is disposed in the second portion of the housing.
REFERENCES:
patent: 2020563 (1935-11-01), Moore
patent: 2418381 (1947-04-01), Wegmann
patent: 2636507 (1953-04-01), Houghland
patent: 4222405 (1980-09-01), Rosenblad
patent: 6889669 (2005-05-01), Perry et al.
patent: 2004/0134535 (2004-07-01), Mitchell
Delaire Gilles
Ivens Kirk
Perry Paul D.
Veinotte Andre
Continental Automotive Canada, Inc.
Rivell John
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