Title: Drawing and writing brush-pen with round and flat hair and adjustable flow of permanent liquid ink

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Claims: What is claimed is:

1. A brush-pen of round and flat hair and permanent liquid ink with adjustable flow for drawing and writing, comprising a cylindrical ink container having on one end a threaded removable cap for refueling and on the other end a ferrule with a brush tip, a passage for ink flow from the ink container through the ferrule to the brush tip including a stopper adjacent said ferrule and adapted to vary the passage through said ferrule in response to the position of said stopper relative to said ferrule, a shaft extending from said cap through said ink container and connected to said stopper, means for biasing said shaft into pressure contact with said cap, a freely movable hollow piston carried adjacent said stopper and cooperating in abutting relation with said biasing means, said hollow piston being movable axially within said cylindrical ink container against said biasing means in response to the axial shaking of the brush-pen to thereby clear dried ink from the interior of the ink container and means on said cap for selectively moving said shaft and thereby positioning said stopper relative to said ferrule in response to rotation of said cap so as to vary the ink passage through said ferrule to said brush tip.

2. The brush-pen of claim 1 wherein said ink container comprises a hollow cylinder threaded at both ends thereof, said brush-pen further including a hollow cylindrical member attached to said ink container through threads thereon which mesh with the threads on said ink container, said ferrule being mounted at one end of said cylindrical member, the other end of said member having a winged cap inserted therein, said winged cap having a tubular orifice centrally therethrough to guide said shaft, said freely movable, hollow piston being carried interiorly of said cylindrical member, said shaft extending through said hollow piston.

3. The brush-pen of claim 1 including a hollow cylindrical member at said other end of said ink container, said ferrule being mounted in one end of said cylindrical member, said freely movable, hollow piston being carried interiorly of said cylindrical member, a cylindrically wound spring within said cylindrical member, said shaft extending through the interior of said spring, one end of the spring adjacent said ferrule abutting an interior, circumferential surface of the piston and the other end of the spring being fixed to said shaft, said stopper including a filament extending longitudinally outwardly therefrom into the passage in said ferrule.

4. The brush-pen of claim 1 wherein said stopper includes a filament extending longitudinally outwardly therefrom, through said passage in said ferrule and into contact with said brush tip.

5. The brush-pen of claim 2 wherein said stopper includes a filament extending longitudinally outwardly therefrom, through said passage in said ferrule and into contact with said brush tip.

6. The brush-pen of claim 5 wherein said moving means on said cap comprises a threaded cylindrical member adapted to move into and out of said cap through the rotation thereof, said threaded cylindrical member being adapted to contact said shaft to thereby move said shaft longitudinally in response to rotation of said threaded cylindrical member.

7. The brush-pen of claim 1 wherein said moving means on said cap comprises a threaded cylindrical member adapted to move into and out of said cap through the rotation thereof, said threaded cylindrical member being adapted to contact said shaft to thereby move said shaft longitudinally in response to rotation of said threaded cylindrical member.

8. The brush-pen of claim 2 wherein said moving means on said cap comprises a threaded cylindrical member adapted to move into and out of said cap through the rotation thereof, said threaded cylindrical member being adapted to contact said shaft to thereby move said shaft longitudinally in response to rotation of said threaded cylindrical member.

Other info:

Inventors: Negreiros, Salvio Correia Lima (Rio de Janeiro, BR)

Application Number: 487637
Filing Date: 1974-07-11
Publication_date: 1976-07-13
Assignee:
Primary Class(es): 401/279 D19/41
Other Classes:
US Patent Ref:

862630	Aug, 1907	Garvey et al.	401/279.
965075	Jul, 1910	Cardinet	401/270.
1063020	May, 1913	Ellis	401/279.
1253934	Jan, 1918	Busch	401/4.
1572362	Feb, 1926	Rapisardi	401/279.
2331672	Oct, 1943	Falkman	401/278.

Other Refs:
Primary Examiner: Charles, Lawrence
Assistant Examiner:
Attorney: Burns, Doane, Swecker & Mathis