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:
Jan. 14, 1997
Filed:
Mar. 07, 1996
Ronald A Smith, Caledon East Ontario, CA;
Other;
Abstract
A sink stopper comprises a perforated strainer basket, a sealing member, an upwardly extending handle, and a downwardly depending locating stem. The locating stem comprises a base portion and two substantially parallel spaced-apart co-operating legs that are substantially rigid yet resiliently deformable towards each other. Each peripheral surface comprises an outwardly and upwardly sloped guide surface disposed at the bottom end portion thereof, an outwardly and downwardly sloped grate-contacting surface disposed at the top end portion thereof, and a grate-receiving notch disposed between the guide surface and the grate-contacting surface. The grate-receiving notch includes an upwardly facing catch surface shaped and dimensioned to catch on the grate in interfering relation therewith. The maximum width of the locating stem at the bottom end of the sloped grate-contacting surface is greater than the diameter of the central guiding aperture in the grate. The sink stopper is movable between a seated flow precluding position whereat the locating stem engages the grate at the outwardly and downwardly sloped grate-contacting surface so as to thereby bias the sink stopper downwardly, and a raised straining position whereat the locating stem engages the grate at the grate-receiving notch, so as to thereby support the sink stopper and so as to resist upward movement therefrom of the sink stopper.