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. 12, 2011
Filed:
Oct. 09, 2009
Stephen F. Gass, Wilsonville, OR (US);
J. David Fulmer, Tualatin, OR (US);
Joel F. Jensen, Redwood City, CA (US);
Benjamin B. Schramm, Los Gatos, CA (US);
Robert L Chamberlain, Raleigh, NC (US);
Stephen F. Gass, Wilsonville, OR (US);
J. David Fulmer, Tualatin, OR (US);
Joel F. Jensen, Redwood City, CA (US);
Benjamin B. Schramm, Los Gatos, CA (US);
Robert L Chamberlain, Raleigh, NC (US);
SD3, LLC, Tualatiin, OR (US);
Abstract
Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable.