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:
Jul. 17, 2012
Filed:
Feb. 20, 2008
Chong Won Lee, Seoul, KR;
Chong Won Lee, Seoul, KR;
Seowon Co., Ltd, Bucheon-si, KR;
Abstract
The present invention provides a pressure-compensation drip tape, which is used in drip irrigation to continuously and evenly supply a small amount of water to plants. The drip tape of the present invention includes an outer shell, and overlapping sheetsand, which are expandable depending on an increase of water pressure. Furthermore, the drip tape has a main passage, which is defined by the outer shell and the innermost overlapping sheet, such that most water supplied from a water source flows through the main passage, pressure-reducing passagesand, which are defined between the overlapping sheets, and discharge holesH,H andH, which are formed in the border between the main passage and one of the pressure-reducing passages and the border between the pressure-reducing passages, such that the water sequentially flows via the main passage and the pressure-reducing passages and drips outside the drip tape.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile