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:
Jun. 29, 1976
Filed:
May. 08, 1975
Applicant:
Inventors:
William L Schaefer, Gibsonia, PA (US);
Thomas J Briar, Trafford, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29427 ; 2920 / ; 2940 / ;
Abstract
An apparatus for removing cutting blades from the periphery of an annular cutting head is disclosed which is comprised of a working table on which the cutting head is mounted and a pair of free wheeling cam members positioned to contact the blades at their portions which extend beyond the width of the cutting head. The curved portion of the cam members contact the edges of the blades while the cutting head is rotated and the blades are simultaneously moved away from the cam members. The curved surface of the cam members force the blades from their mounting in the cutter head as the head is rotated.