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:
Nov. 08, 2011
Filed:
Mar. 22, 2010
Stephen F. Gass, Wilsonville, OR (US);
Robert L. Chamberlain, Raleigh, NC (US);
J. David Fulmer, Tualatin, OR (US);
Joel F. Jensen, Redwood City, CA (US);
Benjamin B. Schramm, Los Gatos, CA (US);
Stephen F. Gass, Wilsonville, OR (US);
Robert L. Chamberlain, Raleigh, NC (US);
J. David Fulmer, Tualatin, OR (US);
Joel F. Jensen, Redwood City, CA (US);
Benjamin B. Schramm, Los Gatos, CA (US);
SD3, LLC, Tualatin, OR (US);
Abstract
A method of controlling a woodworking machine having a movable cutting tool. The method monitors a signal for a change indicative of a dangerous condition between the cutting tool and a person, senses movement of the cutting tool, and performs an action to mitigate the dangerous condition when the signal change and movement of the cutting tool are both detected. A woodworking machine including a detection system adapted to detect a dangerous condition between a person and a working portion of the machine and then to perform some action to mitigate the dangerous condition is also disclosed. A motion detection system is adapted to detect motion of the working portion and to disable the reaction system when the working portion is not moving.