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:
Aug. 25, 1987
Filed:
Oct. 16, 1986
James McCambridge, Polo, IL (US);
Central Quality Industries, Inc., Polo, IL (US);
Abstract
According to the invention, a canister with bottom and peripheral walls defines an accumulation space for matter picked up by the vacuum. A lid is secured to the upper edge of the canister and seals the space. The invention resides in the provision of a canister extension whose bottom edge conforms to the top edge of the canister and bears thereupon. The extension can be secured to the canister permanently or removably in any known manner, as by sonic welding or the like. The lid in turn mates with the extension in the same manner that it mates with the open canister edge. Accordingly, the canister capacity is increased. Any number of such extensions can be employed depending upon the range of capacity sought. The invention also contemplates providing a plate bounding an impeller chamber than can be inverted to selectively accommodate different capacity impellers and different capacity motors.