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:
May. 02, 1989
Filed:
Jun. 23, 1988
Applicant:
Inventor:
Joon H Han, Silver Spring, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01G / ;
U.S. Cl.
CPC ...
47 67 ; 47 79 ;
Abstract
A watering device for plants includes a plant container which is balanced on a vertical moving rod by a spring and a water reservoir tank is operatively associated with the plant container so that as the plant container becomes lighter due to a loss of water, the spring member disposed at the opposite end of the vertical moving rod from the plant container actuates a valve in the water reservoir tank and transfers water from the water reservoir tank to the plant container until a balance is again achieved, and when the balance is reached, the valve in the water tank is again closed.