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:
May. 04, 2010
Filed:
Jan. 26, 2009
Applicants:
Stephen F. Gass, Wilsonville, OR (US);
Paul J. Lingane, Redwood City, CA (US);
Arjuna R. Karunaratne, Fremont, CA (US);
Inventors:
Stephen F. Gass, Wilsonville, OR (US);
Paul J. Lingane, Redwood City, CA (US);
Arjuna R. Karunaratne, Fremont, CA (US);
Assignee:
SD3, LLC, Tualatin, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B26D 7/24 (2006.01); H02P 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish contact between a person and the blade of the saw from contact between the blade and wet or green wood.