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:
Apr. 20, 1982
Filed:
Jun. 30, 1980
John M Hale, Meinier, CH;
Eugen Weber, Hinwil, CH;
Orbisphere Corporation Wilmington, Succursale de Collonge-Bellerive, Collonge-Bellerive, CH;
Abstract
A method of mounting and securing a membrane of polymer film on an amperometric cell that has a cylindrical cell end provided with an electrolyte-bearing sensor face; the holding member is a substantially non-resilient and creep-resistant die ring, having a cylindrical inner surface that fits onto the cylindrical cell end; at least one tapered inner surface portion extends outwardly toward a leading end of the die ring; the leading end is moved over the cell end whereby the polymer film is deep-drawn between the die ring and the cylindrical cell end and is permanently shaped to form a cup-shaped membrane portion sealingly held by the die ring on the cylindrical cell end during operation of the amperometric cell. An amperometric cell having a cylindrical cell end frontally provided with sensor face, a membrane formed of a flexible polymer film and extending over the sensor face; the membrane is in contact with the cylindrical cell end; a holding member is arranged around the membrane; the holding member is a non-resilient and creep-resistant die ring having a cylindrical inner surface fitting onto the cylindrical cell end and at least one tapered inner surface portion outwardly extending toward a leading end of the die ring; the membrane has a permanently formed cup-shaped portion sealingly held by the die ring on the cylindrical cell end during operation; the die ring can be removed, e.g., for cell maintenance and reused for applying and shaping a fresh membrane.