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. 29, 1980
Filed:
Dec. 15, 1977
Applicant:
Inventor:
Kenneth R Hiester, Cogan Station, PA (US);
Assignee:
Shop-Vac Corporation, Williamsport, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55216 ; 55472 ; 1532 / ;
Abstract
In a cannister or tank type vacuum cleaner which uses a generally cylindrical filter element that is fitted around a generally cylindrical filter cage, the cage is an integral plastic molding with the lid that closes the tank of the vacuum cleaner; the vacuum cleaner motor sits atop the lid; the lid is removably sealed to the cannister; inside the filter cage, there is a freely floating ball, which floats up through the cage as the tank becomes filled to seal the air outlet to the motor.
Quick Actions:
Hiester, Kenneth. (1980). Integral filter cage and lid for cannister type vacuum cleaner (U.S. Patent No. 4185974). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4185974
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile