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:
Jul. 15, 2003
Filed:
Mar. 19, 2001
Applicant:
Inventors:
Jackson W. Wegelin, Akron, OH (US);
Kurt D. Harsh, North Canton, OH (US);
Ryan S. Steiner, Dalton, OH (US);
Assignee:
The Hoover Company, North Canton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 5/34 ;
U.S. Cl.
CPC ...
A47L 5/34 ;
Abstract
A vacuum cleaner of the fixed or floating nozzle type wherein a spring is utilized for urging the suction nozzle into the carpet pile to maintain and improve nozzle suction over a wide range of carpet pile heights and types. Such cleaners often lose nozzle suction as the pile height of the carpet increases and forces the suction nozzle upward away from the carpet. The addition of a spring to force the suction nozzle downward restores and improves nozzle suction and thereby improves overall cleaning efficiency of the vacuum cleaner.