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. 08, 1982
Filed:
Mar. 28, 1980
John L Beiswenger, Libertyville, IL (US);
Howard R Moon, Fort Atkinson, WI (US);
Dhananjay V Chaphalkar, Lindenhurst, IL (US);
Frank A Smiesko, McHenry, IL (US);
Acme Burgess, Inc., Grayslake, IL (US);
Abstract
Plant fertilizer in granular form is supplied as replaceable cartridges and gradually dissolved within the cartridge shell by a side branch of the main stream of water which flows straight through the base of the feeder with minimum pressure loss. The cartridge container is a frustoconical disposable shell the base closure of which has a central orifice for metering inflowing water and peripheral fertilizer solution outlet holes. A port in the top of the main channel directs the side branch flow against the cartridge closure at the metering orifice to flow into the body of fertilizer and a second port receives solution from outlet apertures in the closure to rejoin the main stream at an enlarged portion of the main channel to provide suction. A dome screwed into sealed engagement on the top of the feeder encloses the cartridge. A safety valve is provided at the top of the dome to permit trapped air to escape through a central aperture.