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:
Jun. 09, 1992
Filed:
Oct. 29, 1990
Rudolph M Gunzel, Jr, Palm Springs, CA (US);
Scott W Demarest, Caledonia, WI (US);
David J Edwards, Racine, WI (US);
Donald J Shanklin, Fullerton, CA (US);
S. C. Johnson & Son, Inc., Racine, WI (US);
Abstract
An improved portable, self-contained apparatus for spreading particulate material that can, by use of alternate flow improvement and control mechanisms, be used to dispense either dusts (such as insecticides) or granular materials such as fertilizer. The apparatus has a detachable container portion and a dispensing portion which includes, in a chamber, a rotary vane turned by a battery-powered motor, a recurved channel leading from the blower chamber to an outlet nozzle, and a triggering and activation assembly which sequentially activates first the motor and the rotary vane and then the flow improvement and control mechanism.