Gas separation – With means securing or retaining separating media
Reexamination Certificate
2007-11-21
2010-02-02
Hill, Jr., Robert J (Department: 1797)
Gas separation
With means securing or retaining separating media
C055S507000, C128S200240, C096S133000
Reexamination Certificate
active
07655063
ABSTRACT:
The invention is a can-filter structure of an oxygen concentrator, which includes: a first can-filter having filter material; a second can-filter having filter material; and an outlet cover. The first can-filter includes an air inlet provided at the entrance side of the first can-filter and a first conical joint formed at the exit side of the first can-filter, wherein the first conical joint is hollow and at least one recess is provided on the outer surface thereof. The second can-filter includes a second conical joint formed at the entrance side of the second can-filter, wherein the second conical joint is hollow, and at least one engaging hook corresponding to the recess is provided on the inner surface thereof for coupling to the first conical joint. The outlet cover is provided at the exit side of the second can-filter and is coupled thereto by ultrasonic fusion.
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patent: 2008/0185544 (2008-08-01), Yeh
Wang Shiow-Chen
Wu Wen-Ching
Yang Wen-Feng
Birch & Stewart Kolasch & Birch, LLP
Hill, Jr. Robert J
Jones Christopher P
Treatyou Medical Technology Corporation
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