The present invention discloses an airbrush including an elongate body having an internal cavity and an external grip surface to be held in the hand of a user. A DC electric motor and an air pump driven by the motor are oriented within the body cavity. A switch is oriented on the elongate body exter
The present invention discloses an airbrush including an elongate body having an internal cavity and an external grip surface to be held in the hand of a user. A DC electric motor and an air pump driven by the motor are oriented within the body cavity. A switch is oriented on the elongate body external surface proximate to a finger of a user's hand. A removable pen having an internal liquid reservoir and a nib cooperates with the elongate body and extends within an air chamber having an outlet nozzle and an inlet coupled to the air pump. The user selectively actuates a switch to cause the motor to drive the pump providing an air stream of pressurized air to the air chamber which flows above the nib drawing liquid particles therefrom, into the air stream forming a mist which is sprayed from an outlet orifice of the outlet nozzle.
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1. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor; a switch oriente
1. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor; a switch oriented on the elongate body external surface proximate to a finger of a user's hand; and a removable pen having an internal liquid reservoir and a nib, the pen cooperating with the elongate body and at least partially extending into a portion of the elongate body which defines an internal air chamber having an outlet nozzle and an inlet coupled to the air pump; wherein the user, grasping the elongate body, selectively actuates the switch to cause the motor to drive the pump providing an air stream of pressurized air to the air chamber which flows about the nib of the removable pen, drawing liquid particles from the nib into the air stream to form a mist which is sprayed from an outlet orifice of the outlet nozzle. 2. The airbrush of claim 1, wherein the nib is porous for enhancing the flow of liquid particles drawn from the nib and into the air stream.3. The airbrush of claim 1, further comprising a battery supply oriented within the elongate body for providing a source of power to the motor.4. The airbrush of claim 1, wherein the elongate body has a central axis and the removable pen is generally coaxially aligned with the central axis.5. The airbrush of claim 1, wherein the elongate body comprises at least two separate body pieces cooperating together to retain the removable pen.6. The airbrush of claim 1, wherein the air pump is further defined as a bellows pump.7. The airbrush of claim 1, wherein the DC electric motor has an output shaft provided with an eccentric drive cooperating with the air pump.8. The airbrush of claim 1, wherein the elongate body has a central axis and the removable pen is provided with a pen axis which is inclined relative to and generally intersecting with the elongate body central axis.9. The airbrush of claim 1, wherein the liquid reservoir contains ink which saturates the nib and is drawn into the air stream as liquid ink particles.10. The airbrush of claim 1, wherein the liquid reservoir contains paint which saturates the nib and is drawn into the air stream as liquid paint particles.11. The airbrush of claim 1, wherein the total weight of the airbrush is less than one and one-half pounds.12. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor; a switch oriented on the elongate body external surface proximate to a finger of a user's hand; a removable pen having an internal liquid reservoir and a nib the pen cooperating with the elongate body and at least partially extending into a portion of the elonate body which defines an internal air chamber having an outlet nozzle and an inlet coupled to the air pump; and an elongate sleeve oriented within the body and partially extending external to the body, the sleeve being adapted to receive the pen therein such that the pen extends, at least partially, into the internal air chamber; wherein the user, grasping the elongate body selectively actuates the switch to cause the motor to drive the pump providing an air stream of pressurized air to the air chamber which flows about the nib of the removable pen drawing liquid particles from the nib into the air stream to form a mist which is sprayed from an outlet orifice of the outlet nozzle. 13. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor; a switch oriented on the elongate body external surface proximate to a finger of a user's hand; and a removable pen having an internal liquid reservoir and a nib the pen cooperating with the elongate body and at least partially extending into a portion of the elongate body which defines an internal air chamber having an outlet nozzle and an inlet coupled to the air pump; wherein the user, grasping the elongate body selectively actuates the switch to cause the motor to drive the pump providing an air stream of pressurized air to the air chamber which flows about the nib of the removable pen drawing liquid particles from the nib into the air stream to form a mist which is sprayed from an outlet orifice of the outlet nozzle; and wherein one of the pen and nozzle has a circumferential cam configuration, and the other of the pen and nozzle has a follower for engaging the circumferential cam configuration, such that rotation of the pen or nozzle axially adjusts the pen relative to the body to vary the proximity of the nib to the outlet orifice for adjusting the spray pattern. 14. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor; a switch oriented on the elongate body external surface proximate to a finger of a user's hand; and a removable pen having an internal liquid reservoir and a nib the pen cooneratin with the elonaate body and at least partially extending into a portion of the elongate body which defines an internal air chamber having an outlet nozzle and an inlet coupled to the air pump; wherein the user, grasping the elongate body, selectively actuates the switch to cause the motor to drive the pump providing an air stream of pressurized air to the air chamber which flows about the nib of the removable pen drawing liquid particles from the nib into the air stream to form a mist which is sprayed from an outlet orifice of the outlet nozzle and wherein the elongate body further comprises a forward portion, the forward portion including the air chamber internally, wherein the outlet nozzle is a separate portion cooperating with the forward portion such that the outlet nozzle is adjustable relative to the forward portion to vary the proximity of the outlet orifice to the nib for adjusting the spray pattern. 15. The airbrush of claim 14, wherein the outlet nozzle is adjustable to a position such that the nib extends out of the outlet orifice, permitting the nib to contact a surface or workpiece.16. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor; a switch oriented on the elongate body external surface proximate to a finger of a user's hand; and a removable pen having an internal liquid reservoir and a nib the pen cooperating with the elongate body and at least partially extending into a portion of the elongate body which defines an internal air chamber having an outlet nozzle and an inlet coupled to the air pump; wherein the user, grasping the elongate body selectively actuates the switch to cause the motor to drive the pump providing an air stream of pressurized air to the air chamber which flows about the nib of the removable pen drawing liquid particles from the nib into the air stream to form a mist which is sprayed from an outlet orifice of the outlet nozzle and wherein the removable pen is axially adjustable relative to the elongate body to vary the proximity of the nib to the outlet orifice for adjusting the spray pattern. 17. The airbrush of claim 16, wherein the removable pen is adjustable to a position such that the nib extends out of the outlet orifice, permitting the nib to contact a surface or workpiece.18. The airbrush of claim 16, wherein the removable pen includes a series of configurations for allowing a user to adjust the pen axially.19. The airbrush of claim 16, wherein the elongate body does not fully enclose the removable pen, providing access to the removable pen sufficient for the user to grip an external surface of the removable pen.20. A removable pen for use with an airbrush having an elongate body, a motor, an air pump operatively driven by the motor and coupled to an air nozzle for forcing air therethrough, the pen comprising;a tubular body having an internal liquid reservoir; and a nib formed of porous material affixed to one end of the tubular body in fluid connection with the internal liquid reservoir; wherein the pen is adapted to cooperate with an airbrush, such that the pen is axially adjustable relative to the airbrush when the pen nib extends at least partially into an air stream formed by the nozzle; wherein an air stream of pressurized air provided by the airbrush flows through the air nozzle and about the nib, drawing liquid particles from the nib into the air stream to form a mist which is sprayed from the airbrush; and whereby a user may selectively translate the removable pen to vary the proximity of the nib to the outlet orifice for adjusting the spray pattern. 21. The removable pen of claim 20, wherein one of the pen and nozzle has a circumferential cam, and the other of the pen and nozzle has a follwer for engaging the circumferece cam configuration, such that rotation of the pen or nozzle axially adjusts the pen to the body to vary the proximity of the nib to the outlet orifice far adjusting the spray pattern.22. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor for providing an air stream of pressurized air; a switch oriented on the elongate body external surface proximate to a finger of a user's hand; an air chamber having an outlet nozzle and an inlet coupled to the air pump for passing the air stream therethrough; and a removable pen having an internal liquid reservoir and a nib, the pen cooperating with the elongate body such that the nib is at least partially oriented proximate to an outlet orifice of the outlet nozzle; wherein the user, grasping the elongate body, selectively actuates the switch to cause the motor to drive the pump providing the air stream of pressurized air which flows from the outlet orifice and about the nib of the removable pen, drawing liquid particles from the nib into the air stream to form a mist. 23. The airbrush of claim 22, wherein the nib is porous for enhancing the flow of liquid particles drawn from the nib and into the air stream.24. The airbrush of claim 22, further comprising a battery supply oriented within the elongate body for providing a source of power to the motor.25. The airbrush of claim 22, wherein the air pump is further defined as a bellows pump.26. The airbrush of claim 22, wherein the DC electric motor has an output shaft provided with an eccentric drive cooperating with the air pump.27. The airbrush of claim 22, wherein the elongate body has a central axis and the removable pen is provided with a pen axis which is inclined relative to and generally intersecting with the elongate body central axis the liquid reservoir contains.28. The airbrush of claim 22, wherein the liquid reservoir contains ink which saturates the nib and is drawn into the air stream as liquid ink particles.29. The airbrush of claim 22, wherein the liquid reservoir contains paint which saturates the nib and is drawn into the air stream as liquid paint particles.30. The airbrush of claim 22, wherein the total weight of the airbrush is less than one and one-half pounds.31. An airbrush comprising:an elongate body having an internal cavity and an external grin surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor for providing an air stream of pressurized air; a switch oriented on the elongate body external surface proximate to a finger of a user's hand; an air chamber having an outlet nozzle and an inlet coupled to the air pump for passing the air stream therethrough; and a removable pen having an internal liquid reservoir and a nib the pen cooperating with the elongate body such that the nib is at least partially oriented proximate to an outlet orifice of the outlet nozzle; wherein the user, grasping the elongate body selectively actuates the switch to cause the motor to drive the pump providing the air stream of pressurized air which flows from the outlet orifice and about the nib of the removable pen drawing liquid particles from the nib into the air stream to form a mist; and wherein the removable pen includes a series of configurations for allowing a user to adjust the pen axially. 32. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor for providing an air stream of pressurized air; a switch oriented on the elonnate body external surface proximate to a finger of a user's hand; an air chamber having an outlet nozzle and an inlet coupled to the air pump for passing the air stream therethrough; a removable pen having an internal liquid reservoir and a nib the pen cooperating with the elongate body such that the nib is at least partially oriented proximate to an outlet orifice of the outlet nozzle; and an elongate sleeve oriented within the body and partially extending external to the body, the sleeve being adapted to receive the pen therein such that the pen extends, at least partially, into the internal air chamber; wherein the user, grasping the elongate body selectively actuates the switch to cause the motor to drive the pump providing the air stream of pressurized air which flows from the outlet orifice and about the nib of the removable pen drawing liquid particles from the nib into the air stream to form a mist. 33. An airbrush comprising:an elongate body having an internal cavity and an external grip surface to be held in the hand of a user; a DC electric motor oriented within the body internal cavity; an air pump oriented within the body internal cavity and operatively driven by the motor for providing an air stream of pressurized air; a switch oriented on the elongate body external surface proximate to a finger of a user's hand; an air chamber having an outlet nozzle and an inlet coupled to the air pump for passing the air stream therethrough; and a removable pen having an internal liquid reservoir and a nib the pen cooperating with the elongate body such that the nib is at least partially oriented proximate to an outlet orifice of the outlet nozzle; wherein the user, grasping the elongate body selectively actuates the switch to cause the motor to drive the pump providing the air stream of pressurized air which flows from the outlet orifice and about the nib of the removable pen drawing liquid particles from the nib into the air stream to form a mist; and wherein one of the pen and nozzle has a circumferential cam configuration, and the other of the pen and nozzle has a follower for engaging the circumferential cam configuration, such that rotation of the pen or nozzle axially adjusts the pen relative to the body to vary the proximity of the nib to the outlet orifice for adjusting the spray pattern. 34. An airbrush comprising: an elongate, generally tubular body having an internal cavity and a tubular external grip surface to be held in the hand of a user; a DC electric motor oriented within the tubular body internal cavity; an air pump oriented within the tubular body internal cavity and operatively driven by the motor for providing an air stream of pressurized air; a switch oriented on the tubular body external surface proximate to a finger of a user's hand;an air chamber having an outlet nozzle and an inlet coupled to the air pump for passing the air stream therethrough; and a removable pen having an internal liquid reservoir and a nib, the pen cooperating with the tubular body such that the nib is at least partially oriented proximate to an outlet orifice of the outlet nozzle; wherein the user, grasping the tubular body, selectively actuates the switch to cause the motor to drive the pump providing the air stream of pressurized air which flows from the outlet orifice and about the nib of the removable pen, drawing liquid particles from the nib into the air stream to form a mist. 35. The airbrush of claim 34, wherein the pen nib at least partially extends into the air chamber.36. The airbrush of claim 34, wherein the pen is oriented generally parallel to the tubular body.37. The airbrush of claim 34, wherein the pen is oriented generally coaxial with the tubular body.38. The airbrush of claim 34, wherein the pen is axially adjustable relative to the tubular body to regulate a flow pattern of the mist.
Bolton Terence W. (c/o Bolton Research Limited ; Unit 6 ; City Business Centre ; Basin Road Chichester ; West Sussex PO19 2DU GB2), Air brush apparatus having an improved nozzle and connection mechanism.
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