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. 06, 1976
Filed:
Jun. 20, 1974
James B Stephens, La Crescenta, CA (US);
Westates Space-Era Products, Inc., South El Monte, CA (US);
Abstract
It is known to construct fluid dispensing structures which utilize tubes or conduits which expand or contract in cross-section in accordance with the internal pressure of a fluid within such a tube or conduit in combination with one or more flow control members mounted on such a tube or conduit. These devices are constructed so that there is relative motion between such a tube or conduit and such a flow control member as the tube or conduit changes in cross-sectional configuration. Structures of this type may be modified so that they are usable in providing a relatively constant discharge of a fluid regardless of changes in the fluid pressure within such a tube or conduit by utilizing a pressure compensating spring in combination with each flow control member used. The use of such springs makes flow regulators in accordance with the invention particularly desirable for use in dispensing water in agricultural watering or irrigation applications where there may be a variation in the internal pressure within a tube or conduit.