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:
Feb. 19, 1985
Filed:
Oct. 07, 1983
John J Borzym, Birmingham, MI (US);
Alexander Borzym, West Bloomfield Township, Ingham County, MI (US);
Alpha Industries, Inc., Novi, MI (US);
Abstract
Tube cutoff apparatus of the double cut type wherein a horizontal blade passes across and notches a section of tube wall prior to the entry of a vertical severing blade. The horizontal blade holder assembly comprises a carriage which is interconnected with the base by means of a pair of parallelogram links. In one embodiment the horizontal blade holder assembly is driven through an arcuate path of travel by a depending dogleg cam which is mounted on the upper platen assembly of a die set. In a second embodiment the horizontal blade holder assembly is driven by a linkage including a triangular link and a drive link connected to the upper platen assembly. The result in both cases is to drive the horizontal blade holder assembly through an arcuate path which carries it downwardly and away from the path of the vertical blade in a minimum vertical stroke length. In both embodiments, means are provided for adjusting the vertical position of the notching blade relative to the tube section to accommodate tubes of varying diameter.