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. 26, 1993
Filed:
Dec. 05, 1991
Dan R Kirkland, Fort Wayne, IN (US);
Wayne/Scott Fetzer Company, Fort Wayne, IN (US);
Abstract
A sewage pump includes an injection molded thermoplastic upper housing that surrounds an electric motor and its cast iron motor support, except for the bottom wall of the motor support which forms one wall of a vortex volute, the remainder of the volute being constructed of injection molded thermoplastic. The volute includes an inlet aperture through the bottom, and integrally molded legs extending downwardly whose length is related to the diameter of the inlet aperture such that the clearance underneath the volute is less than the diameter of the solids that will pass through the inlet aperture. This prevents oversized solids from reaching the inlet aperture. The outlet of the volute terminates in an annular thermoplastic threaded connection that is threaded on both the interior and exterior for fitting to different sized effluent pipes. The volute can be resized with a solids restricter in the inlet aperture, and by cutting off the legs to a new length selected in relation to the size of solids that the solids restricter will pass into the inlet aperture, to maintain the oversized solids blocking effect.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile