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:
Aug. 11, 1981
Filed:
Sep. 14, 1979
Applicant:
Inventors:
Richard D Darling, Youngstown, NY (US);
Christine A Lazarz, Niagara Falls, NY (US);
Assignee:
Hooker Chemicals & Plastics Corp., Niagara Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ; C25B / ; B29D / ;
U.S. Cl.
CPC ...
204252 ; 204282 ; 204295 ; 204296 ; 204301 ; 1563084 ; 156218 ; 429139 ;
Abstract
A separator for an electrolytic cell or similar cell is made of a porous polymeric material, preferably porous polytetrafluoroethylene, and comprises a plurality of tubular portions of such material with one or two flange(s) at end(s) thereof for sealing to other such flanges and to the cell. The flanges are so constructed that when being sealed in place they do not strain or tear and do not strain or tear the material of the tubular portions. The separator is especially useful as a replacement for deposited asbestos diaphragms in electrolytic cells for the manufacture of chlorine and caustic.