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:
Mar. 13, 1990
Filed:
Feb. 21, 1989
I-Chung Ho, Rancho Palos Verdes, CA (US);
Other;
Abstract
Beneficial chemicals and water are dispensed by an irrigation system to vegetation served thereby. The irrigation system includes a water flow path in part defined by a housing of the inventive irrigation chemical dispenser. The dispenser housing includes a single-use disposable and replaceable chambered cartridge holding a premeasured supply of chemical material. The cartridge is sealingly closed by a penetrable diaphragm prior to and after its uniting with the remainder of the dispenser housing. Penetrating means are included by the dispenser for receiving momentum from the flow of water through the housing to penetrate the cartridge diaphragm. The chemical material is then communicated to the flow path for dispensing to the vegetation served by the irrigation system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile