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. 28, 1992
Filed:
May. 14, 1991
Peter J Czyzewski, Rockford, IL (US);
Greenlee Textron Inc., Rockford, IL (US);
Abstract
A hole saw arbor assembly connectable to a source of torque comprises an arbor having a first end and a second end. A power tool mount is disposed on the first end, and threads are disposed on the second end of a construction capable of mounting a hole saw thereon. A collar mount area is disposed on the arbor proximate to the second end, and a collar retraction area is disposed on the arbor proximate to the first end. A drive collar has a central bore therein, and the arbor is disposed through the central bore. The drive collar is capable of translation between the collar mount area and the collar retraction area, is rotatable about the collar retraction area independent of the arbor, and is incapable of rotation about the collar mount area independent of the arbor. Means for retaining the drive collar about the collar retraction area is disposed on the arbor. The drive collar has drive pins associated therewith, and the drive pins are insertable into apertures in the hole saw. Means for holding the drive pins within the apertures is disposed on the arbor.