The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 1987
Filed:
Jun. 17, 1986
Applicant:
Inventor:
Robert G Relyea, Farmington, NY (US);
Assignee:
Nalge Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
21032178 ; 210455 ; 210474 ; 21050029 ; 55158 ;
Abstract
A plastic filterware having a filter membrane consisting essentially of cellulose nitrate welded to a surface of a membrane support member. The weld can be substantially in the shape of a ring having a width of about 2.29 millimeters. The filterware can include an upper receiving chamber for receiving liquid to be filtered, a support member at the lower end of the receiving chamber and a lower receptacle below the support member of receiving filtrate.