Variable metered airless applicator with cartridge
First Claim
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1. An applicator comprising:
- a housing with a distal end and a proximal end;
an interchangeable tip attachable to the distal end of the housing and in fluid communication with an interior of the housing;
a cartridge, which has a distal end and a proximal end, which is partially or wholly insertable into the housing and which optionally slidably and/or rotatably moves relative to the housing, the cartridge having a pump in fluid communication with the interchangeable tip for dispensing a fluid in the cartridge through the tip by operation of the pump via depressing a trigger which, when depressed, moves a lever to slide the cartridge to actuate the pump to dispense a desired amount of fluid; and
a variable amount selector at the proximal end of the housing for selecting a predetermined amount of the fluid to be dispensed from the cartridge,wherein the cartridge comprises a moveable plug for preventing air from contacting the fluid in the cartridge when the predetermined amount of the fluid is dispensed,wherein said variable amount selector comprises a stroke adjuster for varying a length the cartridge slides relative to the housing by rotating the cartridge when it is disposed in the housing, andwherein the stroke adjuster comprisesa plurality of axial grooves of differing lengths at the proximal end of the housing, anda protrusion on the cartridge for engaging one of the grooves, andthe variable amount selector is operated by rotating the cartridge so that, as the cartridge slides in the housing, the protrusion engages and travels in an axial direction within the one of the grooves corresponding to a desired amount of the fluid to be dispensed.
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Abstract
The present invention relates to a variable metered amount airless applicator with cartridge. Examples of such an applicator include, for example, syringes and gun-shaped applicators. A variable amount selector is a feature of an embodiment of the applicator. The applicator can be attached to a variety of pass-through devices.
33 Citations
9 Claims
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1. An applicator comprising:
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a housing with a distal end and a proximal end; an interchangeable tip attachable to the distal end of the housing and in fluid communication with an interior of the housing; a cartridge, which has a distal end and a proximal end, which is partially or wholly insertable into the housing and which optionally slidably and/or rotatably moves relative to the housing, the cartridge having a pump in fluid communication with the interchangeable tip for dispensing a fluid in the cartridge through the tip by operation of the pump via depressing a trigger which, when depressed, moves a lever to slide the cartridge to actuate the pump to dispense a desired amount of fluid; and a variable amount selector at the proximal end of the housing for selecting a predetermined amount of the fluid to be dispensed from the cartridge, wherein the cartridge comprises a moveable plug for preventing air from contacting the fluid in the cartridge when the predetermined amount of the fluid is dispensed, wherein said variable amount selector comprises a stroke adjuster for varying a length the cartridge slides relative to the housing by rotating the cartridge when it is disposed in the housing, and wherein the stroke adjuster comprises a plurality of axial grooves of differing lengths at the proximal end of the housing, and a protrusion on the cartridge for engaging one of the grooves, and the variable amount selector is operated by rotating the cartridge so that, as the cartridge slides in the housing, the protrusion engages and travels in an axial direction within the one of the grooves corresponding to a desired amount of the fluid to be dispensed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification