초록 ▼

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

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.

대표청구항 ▼

A unitary spray cartridge to be received in a cartridge retaining fitting of a delivery system, the delivery system providing a source of a material to be sprayed to said cartridge, the retaining fitting being configured to couple with the cartridge and hold and seal to the cartridge in use such tha

A unitary spray cartridge to be received in a cartridge retaining fitting of a delivery system, the delivery system providing a source of a material to be sprayed to said cartridge, the retaining fitting being configured to couple with the cartridge and hold and seal to the cartridge in use such that the engagement of the cartridge is completed by the application of a force along a cartridge receiving axis of the cartridge retaining fitting by pressing the cartridge toward the cartridge retaining fitting along the cartridge receiving axis and thereby holding said cartridge, said hold and seal being achieved without the necessity of simultaneously applying a twisting torque, the cartridge is held by the cartridge receiving fitting, and the retaining fitting is configured to uncouple from the cartridge by applying a release force to a release portion of the retaining fitting to uncouple the cartridge from the retaining fitting so that the cartridge can move along said cartridge receiving axis away from said retaining fitting without the necessity of simultaneously applying a twisting torque between the cartridge and the cartridge retaining fitting, the cartridge comprising: an elongated tubular body member defining an interior passage therethrough wherein said body member has a proximal end configured to form a uniform tubular section to engage and be retained by the cartridge retaining fitting and when so engaged and retained to seal the interior passage for the material to be sprayed between the cartridge retaining fitting and an interior passage of said tubular body member and a distal end configured to hold a nozzle tip in communication with said interior passage of said body member and in a particular orientation with respect to said body member when the cartridge is in use and when the cartridge is being installed and removed from the cartridge retaining fitting.