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. 16, 1996
Filed:
Nov. 30, 1993
Masao Yafuso, Lake Forest, CA (US);
Ronnie L Pratt, Hammond, WI (US);
Kathryn R Bretscher, Shoreview, MN (US);
Kenneth B Wood, St. Paul, MN (US);
John L Dektar, Laguna Hills, CA (US);
James G Bentsen, North St. Paul, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
Sensing elements, useful in sensing the concentration of a gas, e.g., carbon dioxide, in a medium, e.g. blood, and methods for making such sensing elements are disclosed. In one embodiment, the method comprises continuously placing a sensing composition precursor in contact with a continuous web, forming a continuous sensing composition from the precursor, and applying a continuous opaque film to the sensing composition. A plurality of individual sensing elements are formed from this composite structure. These sensing elements, which each have very similar sensing characteristics, are placed in a sensor fixture for use.