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:
Aug. 13, 1996
Filed:
Mar. 22, 1995
Durham K Giles, Davis, CA (US);
David C Slaughter, Davis, CA (US);
Regents of the University of California, Oakland, CA (US);
Abstract
A cartridge for use in a spray system, and for releasable connection to a quick-release coupling to form a nozzle assembly. The cartridge includes a generally elongated and hollow body member having a proximal end and a distal end. A nozzle tip is retained at the distal end of the cartridge, and the proximal end is adapted to fit, at least in part, within the quick-release coupling. The body member includes a shoulder for retaining the nozzle tip. In a basic embodiment, the cartridge includes a generally hollow tubular spacer which fits, at least partially, inside the body member, for pressing the nozzle tip against a shoulder formed by the body member at the distal end. An O-ring is disposed between the shoulder and the spacer, in order to seal the cartridge and to prevent leakage. A screw fits within the proximal end of the body member for retaining the spacer in tight engagement with the nozzle tip. In other embodiments, the cartridge includes a plurality of components, such as a sequence of filters and a check valve. The basic embodiment of the cartridge is assembled by fitting the O-ring on the nozzle tip; by inserting the nozzle tip inside the body member; by introducing a spacer inside the body member for abutting against the nozzle tip; and by advancing the hollow screw within the body member to securely retain the spacer against the nozzle tip.