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. 02, 1977
Filed:
Oct. 10, 1975
David B Roberts, Jr, Largo, FL (US);
Joseph L Wells, Largo, FL (US);
Other;
Abstract
An upstanding open top reservoir is provided and a foraminated plate is disposed within an upper portion of the reservoir with the latter and the plate including coacting structure supporting the panel or plate within the reservoir against downward displacement relative thereto. An upstanding sleeve is secured through a central portion of the plate and supported therefrom. The upper and lower ends of the sleeve include liquid outlet and liquid inlet structure, respectively, spaced above and below the plate and manually operable lift pump structure is disposed within the sleeve, includes an operator actuatable from the upper end of the sleeve and is operable, upon actuation of the operator, to lift liquid plant nutrient upwardly through the sleeve from the lower end thereof to the upper end thereof for flowing outwardly from the upper end of the sleeve through the liquid outlet structure.