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:
Mar. 25, 1986
Filed:
Sep. 26, 1984
Joseph J Idzik, Springfield, OH (US);
Charles H Kouse, Springfield, OH (US);
Elliott Turbomachinery Co., Inc., Jeannette, PA (US);
Abstract
A retracting internal tube cutter for severing a tube from the interior is disclosed. The tube cutter includes a pair of swing arms mounted for pivotal outward displacement for effecting cutting of the tube. A retractor collar biased by a spring is mounted about the swing arms such that the collar maintains the swing arms in an insertion position except when the cutter is rotated. When the cutter is rotated the arms are forced outwardly causing the retractor collar to retract such that the cutter may sever the workpiece where desired. Upon discontinuance of rotation of the tube cutter, the retractor collar is urged into the insertion position withdrawing the cutter arms from the workpiece such that the tube cutter may be removed from the tube.