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:
Apr. 09, 2019
Filed:
Nov. 17, 2016
Massachusetts Institute of Technology, Cambridge, MA (US);
Jain Irrigation Systems Ltd, Jalgaon, IN;
Ruo-Qian Wang, Berkeley, CA (US);
Amos G Winter, Somerville, MA (US);
Abhijit Bhaskar Joshi, Jalgaon, IN;
Pawel Jerzy Zimoch, Cambridge, MA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Jain Irrigation Systems Ltd., , IN;
Abstract
Self-regulating valve. The valve includes a static pressure chamber with an elastically collapsible tube supported within the static pressure chamber. A flow restrictor is in fluid communication with an inlet into the static pressure chamber for flow through the collapsible tube. Piping connects a source of pressurized liquid, both to the flow restrictor and to an opening into the static pressure chamber, whereby flow rate through the valve remains substantially constant with variations in pressure of the pressurized liquid. In a preferred embodiment, the flow restrictor is a needle valve.