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:
May. 28, 2002
Filed:
Jul. 27, 2000
Thomas O. Mitchell, Maryland Heights, MO (US);
Gordon R. Coates, III, Augusta, MO (US);
Husky Corporation, Pacific, MO (US);
Abstract
An elliptical expansion plug for plugging elliptical openings. The elliptical expansion plug has a concave inner surface and a convex outer surface sized to allow hand-fitting within an elliptical hole to be plugged. The size of the elliptical expansion plug is such that the elliptical expansion plug generally matches the shape of the elliptical opening to be plugged, and further sized to provide a continuous seal between the outer edge of the elliptical expansion plug and the inner surface of the elliptical opening to be plugged after installation of the elliptical expansion plug. When the convex outer surface is eliminated by deforming the elliptical expansion plug with tools such as a hammer and punch until the convex outer surface is flat, the outer edge of the elliptical expansion plug comes into continuous contact with, and provides a continuous seal against, the inside circumference of the elliptical opening to be plugged.