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. 01, 2014
Filed:
Jan. 14, 2011
Wilbur Keith Moffatt, Freeport, IL (US);
Wilbur Keith Moffatt, Freeport, IL (US);
Greenlee Textron Inc., Rockford, IL (US);
Abstract
An assembly includes a hole saw, an arbor, a collar and a nut. The hole saw is formed from a back plate and a skirt which has a cutting edge on its free end. A passageway is provided through the hole saw. The arbor is rotatably mounted to the hole saw and extends through the passageway. The collar is nonrotatably mounted on the arbor. The collar has a protrusion extending from an end face thereof. A nut is rotatably mounted on the arbor. The collar is trapped between the nut and the hole saw. The nut directly bears against the end face and the protrusion of the collar, which causes the nut to cock relative to the collar. As a result, the nut does not easily come loose on the arbor, even during aggressive use.