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:
Oct. 25, 1983
Filed:
Aug. 17, 1981
Applicant:
Inventors:
Edward A Springer, Petaluma, CA (US);
Ronald D Smith, Petaluma, CA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
A01G / ;
U.S. Cl.
CPC ...
47-2 ;
Abstract
An apparatus and method for root zone heating of plants is disclosed. The apparatus includes an array of flexible, individually movable, plastic tubes which are positioned under the plant root systems. The tubes are preferably formed of EPDM plastic enabling their use with water from geothermal and solar pond sources, as well as conventional sources.