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. 27, 1989
Filed:
Aug. 31, 1987
Thomas B Huggins, Sr, Columbia, SC (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A positive drive mechanism is provided to operate an internal tube cutter. The tube cutter has a body insertable into a tube to be severed, and a wedge-shaped slide supporting a cutting wheel on a forward portion of the cutter body. The slide and cutting wheel are movable toward and away from the tube. An elongated member is mounted through the cutter body for movement longitudinally thereof in one direction to cause outward radial movement of the slide and advancement of the cutting wheel toward and into contact with the tube to cause severing of the same upon rotation of the cutter body and in an opposite direction to permit inward radial movement of the slide and retraction of the cutting wheel away from and out of contact with the tube. The positive drive mechanism includes a housing rotatably mounting the cutter body, a cutter body drive portion mounted to the housing and drivingly interconnected to the cutter body for rotating or counterrotating the same, and a cutter wheel feed portion engaged with the elongated member of the cutter at a rear portion of the cutter body and operable to intermittently move the elongated member in the one direction toward the slide or permit intermittent movement of the elongated member in the opposite direction away from the slide during each rotation cycle of the cutter body.