Metering needle assembly
First Claim
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1. A tattooing device, comprising:
- a needle having a passageway therein;
means for holding a liquid in communication with the passageway, said holding means includes a plunger having a first end and a second end;
means for dispensing a selected portion of the liquid, said dispensing means includes;
a plunger pin having a first end attached to a stationary nut member for engagement with a threaded rod, a second end of said pin being in engagement with said second end of said pin being in engagement with said second end of said plunger, wherein rotational movement of the threaded rod is converted to linear displacement of said plunger along the longitudinal axis;
a clutch member connected to the threaded rod to rotate the threaded rod about a longitudinal axis upon activation of the clutch member;
a cam member operatively fixed to the clutch member to permit activation of the clutch member; and
a spring means adjacent the cam member to provide rotational movement to the cam member.
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Abstract
A tattooing device includes a disposable syringe in which a tattoo dye is dispensed through a passageway in a needle of the syringe. A cam member is rotated to rotate a clutch rod held in a clutch member. The clutch rod rotates a threaded rod through a fixed nut member that causes the threaded rod to move linearly towards the syringe to displace a plunger pin fixed to the threaded rod. The plunger pin thereby displaces a plunger of the syringe to dispense the tattoo dye through the needle.
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Citations
11 Claims
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1. A tattooing device, comprising:
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a needle having a passageway therein; means for holding a liquid in communication with the passageway, said holding means includes a plunger having a first end and a second end; means for dispensing a selected portion of the liquid, said dispensing means includes; a plunger pin having a first end attached to a stationary nut member for engagement with a threaded rod, a second end of said pin being in engagement with said second end of said pin being in engagement with said second end of said plunger, wherein rotational movement of the threaded rod is converted to linear displacement of said plunger along the longitudinal axis; a clutch member connected to the threaded rod to rotate the threaded rod about a longitudinal axis upon activation of the clutch member; a cam member operatively fixed to the clutch member to permit activation of the clutch member; and a spring means adjacent the cam member to provide rotational movement to the cam member. - View Dependent Claims (2, 3, 4, 5)
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6. A tattooing device, comprising:
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means for holding a liquid, said holding means includes; a housing having a cavity portion, a plunger in the cavity portion, and a needle having a passageway therein attached to said housing; a threaded rod having a first end in threadable engagement with a nut member, said nut member being attached to one end of a plunger pin, a second end of said plunger pin being in engagement with said plunger, wherein rotational movement of the threaded rod is converted to linear displacement along a longitudinal axis to thereby move the plunger along said axis to dispense a selected portion of the liquid; a clutch member connected to a second end of the threaded rod to transfer rotation of the threaded rod upon rotation of the clutch member; a cam member disposed about the housing and fixed to the clutch member to provide rotational movement to the clutch member; first means for longitudinally and rotationally connecting the clutch member to the cam member; second means for connecting the clutch member to the threaded rod; a spring assembly having a first leaf spring adjacent the first connecting means and a second leaf spring adjacent the cam member for intermittent engagement therewith; and housing means supporting the threaded rod, the clutch member, the cam member, and the spring assembly. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification