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. 20, 1976
Filed:
Dec. 19, 1974
Thomas Cannon, Chevy Chase, MD (US);
Frances G Cannon, Chevy Chase, MD (US);
Jane E Cowan, Potomac, MD (US);
Bernard McCarthy, Clinton, MD (US);
Other;
Abstract
A drain guard is disclosed having a tubular body with a funnel-shaped portion at its upper end. The tubular body has an annular recess extending about the inside periphery thereof proximate the bottom end of the guard. The recess receives a sealing grommet therein for sealing the space between a tube on which the guard is positioned and the inner periphery of the tubular portion of the guard. Stop lugs are positioned about the inner periphery of the tubular portion of the guard at the junction of the funnel-shaped end portion thereof for limiting the upward movement of the tube on which the guard is positioned through the drain guard. A liquid permeable seat is positioned on the funnel-shaped end portion of the drain to permit the ingress of water or other liquids with respect to the drain guard. In an alternative embodiment of the invention, a rubber grommet is affixed to the inside periphery of the drain guard at the junction of the tubular and funnel shaped portions thereof with the grommet serving to limit the upward movement of the tube on which the guard is positioned and to seal the space between the guard and the tube to inhibit the passage of liquids therebetween.