Pen dispensers with cartridges and interchangeable tip applicators

1. A cartridge system comprising:

a cartridge comprising a cartridge body comprising;

an open proximal end that directly connects to a separable interchangeable tip applicator,

a distal end that is open,

a separable piston at the distal end,

a separate distal seal covering the open distal end behind the piston,

a threaded exterior portion;

a flowable material contained in said cartridge body; and

the interchangeable tip applicator adapted for insertion into the cartridge body,

wherein said cartridge system is threadably insertable into a pen dispenser.

2. The cartridge system of claim 1 , wherein said open proximal end comprises a first portion of a connection mechanism for connecting to said interchangeable tip applicator.

3. The cartridge system of claim 2 , wherein said connection mechanism comprises:

a tapered connection, a threaded connection, or a press-fit connection.

4. The cartridge system of claim 1 , wherein said interchangeable tip applicator comprises:

an interchangeable tip adapter; and

an interchangeable applicator tip.

5. The cartridge system of claim 1 , wherein said flowable material comprises:

nail polish, hair dye color, lip gloss, perfume, cologne, fingernail glue, cosmetic glue, hydrogel nail paint, hair dye color, or nail varnish.

6. The cartridge system of claim 4 wherein the tip adapter comprises a tubular body comprising;

a tip adapter proximal end configured to receive the applicator tip,

a tip adapter distal end,

a hollow interior portion with a distal opening,

a second portion of the connection mechanism for insertion into said open proximal end of said cartridge body, and

a threaded exterior portion for receiving a protective cap.

7. The cartridge system of claim 4 wherein the applicator tip comprises:

a fine bristle brush, a felt tip, a foam tip, a cotton tip, a spray tip applicator, a shaped polymer tip applicator, a captured roller ball, a hair dye comb, or a mustache brush.

8. The cartridge system of claim 4 wherein the applicator tip comprises:

a spike configured for receiving alternate applicator tips, or

a fine bristle brush.

9. The cartridge system of claim 6 , wherein the protective cap comprises:

a proximally closed end and an open distal end, said distal end comprising internal threads configured to match said threaded exterior portion of said tip adapter and an interior configured to cover and protect said applicator tip.

10. The cartridge system of claim 1 , wherein said cartridge body further comprises:

a winged portion comprising a plurality of wings.

11. The cartridge system of claim 10 , comprising a protective cap configured to mate with said winged portion of said cartridge body to cover and protect said interchangeable tip applicator, wherein said protective cap comprises:

a proximally closed-end with an open distal end sized to fit over said winged portion of said cartridge body with a plurality of wing slots fitting around said cartridge body wings and said proximally closed end covering said interchangeable tip applicator.

12. The cartridge system of claim 11 , wherein the protective cap comprises:

an interior seal configured to seal the interior of the protective cap and to protect the applicator tip from the effects of ambient air when not in use; and

an internal fluid channel spike emanating from the proximally closed end of the cap.

13. An interchangeable tip applicator assembly for dispensing non-flowable material, the tip applicator assembly comprising

a tip adapter that comprises:

a tubular body comprising:

a proximal end,

a distal end,

an interior with a first opening at the distal end, a second opening at the proximal end having a first portion of a connection mechanism to receive an applicator tip, and

an exterior comprising a threaded connection for insertion into a pen dispenser; and

the applicator tip comprising a second portion of the connection mechanism to mate with the first portion of the connection mechanism on said tip adapter.

14. The interchangeable tip applicator assembly of claim 13 , wherein said connection mechanism for receiving an applicator tip comprises:

a press-fit connection,

a taper connection,

a bayoneted connection,

a snap-fit connection, or

a threaded connection.

15. The applicator tip assembly of claim 13 , comprising:

a foundation brush, an eyebrow brush, an eyelash brush, a hair comb, a mascara brush, a fine comb, a mustache comb, a fine bristle brush, a felt tip, a cotton tip, a shaped polymer tip applicator, a paint brush, or a sponge tip.

16. A pen dispenser comprising:

a cartridge system comprising;

a cartridge comprising a cartridge body comprising;

an open proximal end that connects to a separable interchangeable tip applicator,

a distal end that is open,

a separable piston at the distal end,

a separate distal seal covering the open distal end behind the piston,

a threaded exterior portion;

a flowable material contained in said cartridge body; and

the interchangeable tip applicator adapted for insertion into the cartridge body; and

a pen body comprising

a button-activated ratchet rod that is arranged to push through said distal seal and contact said piston, and

a barrel key, wherein the cartridge system is threadably insertable into the barrel key of the pen body.

17. The pen dispenser of claim 16

wherein the cartridge system is configured to fit within the pen body; and

wherein the pen body further comprises

a posterior jacket with capture features,

a ratchet rod compression spring,

a button carriage,

an anterior jacket, and

an activator button,

wherein said posterior jacket internally accepts said ratchet rod compression spring,

wherein said ratchet rod compresses said ratchet rod compression spring,

wherein said button carriage slides over and captures a distal end of said ratchet rod, thereby compressively retaining said ratchet rod compression spring,

wherein said barrel key slides over a protruding end of said ratchet rod,

wherein distal detents on said barrel key engage a capturing groove in an anterior surface of said button carriage,

wherein said anterior jacket aligns with, slides over, and simultaneously captures said barrel key, said button carriage, and capture features of said posterior jacket, forming an assembled button housing,

wherein said activator button inserts and is captured within said assembled button housing, and

wherein said activator button aligns with a non-splined side of said ratchet rod within said pen body.

18. The pen dispenser of claim 17 wherein the ratchet rod has splined teeth on only a splined side of the ratchet rod.

19. The pen dispenser of claim 18 , wherein said barrel key comprises a hollow tubular structure comprising

an open proximal end with a connection mechanism for receiving one or more interchangeable components through an anterior opening of the anterior jacket, and

a closed distal end having an opening therethrough for receiving the protruding end of the ratchet rod at a fixed rotation,

wherein the splined side of the ratchet rod can enter the opening in only one orientation.

20. The pen dispenser of claim 19 , wherein the interchangeable components comprise at least one of:

the cartridge system comprising a flowable material and the interchangeable tip applicator;

a tip adapter for applying non flowable materials; and

a protective cap.