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. 25, 1976
Filed:
Jun. 24, 1974
Donald B Tschudy, Canton, OH (US);
The Hoover Company, North Canton, OH (US);
Abstract
Canister cleaner arrangements are provided in which auxiliary cooling air is introduced to the cleaner main air stream fan system discharge so as to provide a cooled discharge air temperature to maintain cooled portions of the canister cleaner adjacent the fan discharge. In the first embodiment of the invention, auxiliary cooling air flows through perforations in the bottom pan of the cleaner to mix with the fan system discharge air so that the total flow may then be exited outwardly around the periphery of the canister cleaner. In the second embodiment of the invention auxiliary cooling air moves inwardly into the canister cleaner between the bottom pan therefor and an auxiliary pan spaced above the bottom pan to mix with main stream fan discharge air so that the combined air flow can be discharged downwardly through the bottom pan of the cleaner. This provides an air cushion effect for the canister cleaner.