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:
Sep. 15, 1981
Filed:
Mar. 27, 1980
Carl Parise, Sparks, NV (US);
Parise & Sons, Inc., Sparks, NV (US);
Abstract
A vacuum pump assembly, axially mounted within a hot water vacuum extraction machine enclosed housing, includes an enclosed cylindrical casing. A vertical axis shaft mounted fan at the lower end of the vacuum pump assembly casing rotates within an annular shroud bearing radial ports and which closely surrounds the fan blading with minimal air gap between the tips of the fan blades and the shroud annular sidewall to improve cooling air flow through the fan and over the pump assembly motor coils and reducing the hot water vacuum extraction machine housing interior temperature and that within the vacuum pump assembly. By cooling air flow discharge from the bottom of the extraction machine housing, water entry to the vacuum pump assembly interior is prevented.