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US 6,283,660 B1Granted
Pen dispensing and cartridge system
OwnerPatrick J. Furlong, Dennis M. Nakamurainventors
Life of this patent
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Abstract
The present invention features a pen used, for example, to dispense nail polish for finger nail application. The design is for a unit of use, meaning that the preferred pen uses cartridges, i.e., units. In a preferred embodiment, each cartridge is filled with polish and has a brush head. After the cartridge is used, the user simply disposes of the old cartridge and replaces it with a new cartridge for the next application.
Claims7
A pen dispenser for dispensing a substance, comprising:
- a disposable cartridge filled with the substance being dispensed and a brush housing unit;
- a rotating sleeve capable of accepting said cartridge, a spring loaded rod ratchet, a ratchet wheel and a bottom ratchet, wherein said rod ratchet engages both the ratchet wheel and the bottom ratchet;
- and
- a flow control button which advances the rod ratchet a specifically measured distance which in turn presses down on a spring loaded top ratchet which in turn advances a bi-directional ratchet wheel a single notch, wherein said bi-directional ratchet wheel comprises two sets of teeth, an inside set that runs one direction and an outside set that runs in the opposite direction, thereby allowing the top ratchet to advance the ratchet wheel and rod ratchet in the same direction.
1 more element
A cartridge system comprising:
- a brush housing unit and a metal or plastic capsule having a first end and a second end, said second end being hermetically sealed by a membrane made of metal or plastic, the capsule containing a liquid or cream substance;
- wherein the brush housing screws or is pushed and locked into a pen dispenser and a rod ratchet pushes the capsule forward inside the brush housing and into a spike, thereby penetrating a coined end of the capsule.
Dependencies are inferred from the claim text.