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:
Jul. 18, 2006
Filed:
May. 06, 2003
Lee A. Krywitsky, Calgary, CA;
Lee A. Krywitsky, Calgary, CA;
Hilltap Fittings, LTD., Calgary, CA;
Abstract
A gear operated coupler is provided for coupling and uncoupling mating first and second coupling portions of a piping system component. A sleeve with an attached spur gear includes threads that engage the first coupling portion, and the sleeve slidingly receives the second coupling portion. The coupling portions are maintained in a metal-to-metal seal arrangement by a compensation ring in the sleeve. A pinion plate, carrying an associated pinion gear, is attached to the second coupling portion so that the pinion gear engages the spur gear. A torque applied to an operating nut connected to the pinion gear shaft causes the pinion gear and spur gear to rotate. Depending on the direction of rotation of the pinion gear, the threads of the sleeve advance the first coupling portion toward the second coupling portion until the two are coupled, or the first coupling portion is retracted from the second coupling portion.