Pen removably retaining single use capsule containing tooth whitening compounds, dental bonding compounds and adhesives and removably retaining disposable tooth whitening applicators, disposable dental bonding compound applicators and disposable adhesive applicators

摘要

The present invention involves the field of numerous types of compounds including tooth whitening compounds and in particular, to specific apparatus which are used to retain tooth whitening compounds and then dispense them either into a dental tray where the tray is placed over the patient's teeth for a period of time or the tooth whitening compound is directly applied to the patient's teeth by the dentist or the dental assistant. More broadly described, the present invention includes compound and applicators used to dispense the compounds including tooth whitening compounds, dental bonding and filling compounds, adhesives, finely ground powder, jells, creams and paints.

主权项

1. An apparatus for removably retaining a single use cartridge and dispensing compounds from the single use cartridge, comprising:
a. a single use cartridge having an exterior surface which surrounds an interior circumferential wall surrounding interior dual chambers separated by an interior longitudinal dividing wall and a rear opening leading to the interior dual chambers, two compounds with a respective compound retained within a respective one chamber of the dual interior chambers and separated by the interior longitudinal dividing wall, a plunger having front interior surfaces aligned with a respective one chamber and having sidewalls which serve as a seal against the interior circumferential wall to prevent the compounds from flowing out of the rear opening, the plunger having a pair of rear spaced apart pockets respectively aligned with a respective one of the dual chambers, the exterior surface leading to a connecting section extending from a body of the exterior surface to a nozzle having a cylindrical surface extending from the connecting section to a dispensing nozzle tip having threads on an exterior surface of the dispensing nozzle tip and a frangible seal on a front end of the dispensing nozzle tip to retain the compounds in a sealed condition within the dual interior chambers, a threaded cylindrical sealing cap with an interior surface with threads adjacent the rear of the sealing cap and a front end with an interior chamber having a piercing tooth within the interior which extends inwardly from the front end of the scaling cap, the sealing cap threaded onto the threads of the nozzle tip, and after the sealing cap is unthreaded from the nozzle tip of the cartridge, the piercing tooth is used to penetrate the frangible seal so that the nozzle tip is opened to enable the compounds to be dispensed from the interior of the single use cartridge; b. an operating mechanism for the dual chamber cartridge, the operating mechanism placed in a dispensing apparatus and the operating mechanism including a pair of pistons which are respectively used to engage a respective rear pocket of the plunger used with the dual chamber cartridge and a ratchet mechanism which is engaged by a tooth member to move the two pistons in a forward direction to push the plunger forwardly to dispense the compounds from the cartridge when the cartridge is placed in the dispensing apparatus at a location in front of the dual pistons, the operating mechanism includes a moving ratchet tooth member and housing to engage each ratchet tooth having a vertical wall and a rearwardly slanted top surface by a given amount and the ratchet tooth slides down the slanted top surface until it is adjacent a vertical wall of a next ratchet tooth in a ratchet tooth assembly to move the pistons forward; and c. the dispensing apparatus includes an exterior surface with a rear opening and a front tip dispensing opening and surrounding an interior chamber which receives the operating mechanism which also has a resetting bar at its end which extends out the opening in the rear end of the dispensing apparatus so that the entire operating mechanism is pulled backward in the interior chamber of the dispensing apparatus for the insertion of a fresh cartridge after a specific cartridge has been used up, the dispensing apparatus includes the interior chamber which contains the operating mechanism where the two pistons are adjacent an interior opening where the single use cartridge is inserted in the dispensing apparatus, the dispensing apparatus includes an interior cylindrical sidewall and an exterior cylindrical wall and an open front through which the front tip of the cartridge extends, and a back pushing member which is used to push the cartridge forward along with the mechanism to push the pistons forward to enable the pistons to move into the pockets against the back of the plunger and dispense the compounds through the opening in the nozzle tip of the cartridge.