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:
Sep. 03, 2019
Filed:
Jul. 30, 2015
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Joseph P. Keller, Wahpeton, ND (US);
Dean Sitz, Wahpeton, ND (US);
Mary Jo Johnson, Lake Elmo, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
A61B 7/02 (2006.01); A61B 7/00 (2006.01); G10K 11/18 (2006.01);
U.S. Cl.
CPC ...
A61B 7/02 (2013.01); A61B 7/00 (2013.01); G10K 11/18 (2013.01);
Abstract
The present invention is a diaphragm including a disc formed from a first material and a rim formed from a second material. The disc and the rim are a unitary piece. The rim has a Shore A durometer hardness of between about 40 and 110.