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:
Dec. 26, 2006
Filed:
Jul. 14, 2004
Doug Huffer, Aiken, SC (US);
Fred Lowery, Urbandale, IA (US);
Gary Petersen, Grinnell, IA (US);
Keith Gausmann, Westerville, OH (US);
Samuel Marino, Grove City, OH (US);
Gary Myers, Westerville, OH (US);
Jamison J. Float, Westerville, OH (US);
Jay F. Perkins, Pickerington, OH (US);
Steve Pever, Bellefontaine, OH (US);
Robert Hayes, Lewis Center, OH (US);
Michael T. Kopczewski, Grove City, OH (US);
Paul E. Hsu, Powell, OH (US);
Douglas G. Schaefer, Columbus, OH (US);
Brent L. Burchfield, Dublin, OH (US);
Jeffrey T. Debord, Worthington, OH (US);
Doug Huffer, Aiken, SC (US);
Fred Lowery, Urbandale, IA (US);
Gary Petersen, Grinnell, IA (US);
Keith Gausmann, Westerville, OH (US);
Samuel Marino, Grove City, OH (US);
Gary Myers, Westerville, OH (US);
Jamison J. Float, Westerville, OH (US);
Jay F. Perkins, Pickerington, OH (US);
Steve Pever, Bellefontaine, OH (US);
Robert Hayes, Lewis Center, OH (US);
Michael T. Kopczewski, Grove City, OH (US);
Paul E. Hsu, Powell, OH (US);
Douglas G. Schaefer, Columbus, OH (US);
Brent L. Burchfield, Dublin, OH (US);
Jeffrey T. DeBord, Worthington, OH (US);
Maytag Corporation, Newton, IA (US);
Abstract
A coupling for connection of a tube comprises a coupling housing which includes a first end into which the tube is inserted, a clamping ring which is positioned in the coupling housing against a first conical surface, a sealing ring which is positioned in the coupling housing, and a return ring which is positioned in the coupling housing between the clamping ring and a second end of the housing adjacent a second conical surface that is tapered opposite to the first conical surface. The return ring is expandable and comprises a central aperture which is smaller than the external diameter of the tube. Accordingly, when the tube is pushed into the coupling housing and forced through the return ring, the return ring will expand and move along the second conical surface.