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. 23, 2006
Filed:
Sep. 07, 2005
Masahiko Sako, Anjo, JP;
Masahiko Sako, Anjo, JP;
Makita Corporation, Anjo, JP;
Abstract
Power toolmay include tableon which work W is positioned. A portion of a circular bladeprotrudes above table. Circular blademay be driven by a motor. The motor may be controlled by a control device. Work W is cut by means of an operator sending work W positioned on an upper face of tablein the direction of the circular bladewhile circular bladeis being driven by the motor. Power toolmay include first radar deviceand second radar devicefor monitoring a predetermined area in the vicinity of circular blade. First radar devicemay detect whether objects other than work are present in the vicinity of a outer edge of circular blade. Second radar devicemay detect the location of objects moving within the predetermined area in the vicinity of circular blade and detects the speed at which the objects are moving in the direction in which work is sent. Control devicemay cause an emergency halt of the motor in the case where first radar devicedetects that an object other than work is present in the vicinity of the outer edge of circular blade. Further, Control devicemay cause an emergency halt of the motor in the case where an object detected by second radar devicehas a predetermined positional relationship relative to circular bladeand the detected speed exceeds a predetermined value.