STEPHEN LAU
Osteopathic Medicine at Merced St, San Leandro, CA
License number
California A128257
Category
Osteopathic Medicine
Type
Internal Medicine
Address
Address
2
2500 Merced St, San Leandro, CA 94577
2465 Shoreline Dr APT 205, Alameda, CA 94501
2465 Shoreline Dr APT 205, Alameda, CA 94501
Phone
(510) 396-4962
Professional information
Block Filter-Purifier
US Patent:
5558688, Sep 24, 1996
Filed:
Jan 17, 1996
Appl. No.:
8/591214
Inventors:
Cathy L. Cowan - San Jose CA
Stephen Y. Lau - San Leandro CA
Stephen Y. Lau - San Leandro CA
Assignee:
Semi-Gas Systems, Inc. - San Jose CA
International Classification:
B01D 4600, B01D 3502
US Classification:
55312
Abstract:
A filter-purifier that removes particles as well as trace amounts of moisture, oxygen, and other chemical impurities from a gas stream. The filter-purifier includes a removable canister that contains a purifying medium and a pair of sealing poppet valves that automatically close when the canister is removed from an in-line block body. The block body includes gas line fittings with close gland-to-gland separations, since the canister is off to one side and not positioned directly in line between the glands.