Liquid dispensing apparatus
OwnerTerence W. Boltoninventor
Life of this patent
Estimating the term…
Abstract
Apparatus for dispensing a fine spray of liquid particles comprises a hollow tubular casing (1) whose internal cross section is formed with at least one abutment surface. A tubular liquid source (2) is positioned within the casing (1) with the abutment surface in close contact with the outer surface of the source to provide support thereto. The casing (1) includes a passageway for the flow of air from a mouthpiece (3) positioned at one end of the casing (1) to a nozzle (9) positioned at the other end of the casing (1) into which the discharge end of the liquid source protrudes. The liquid source may comprise a pen formed with a nib (14) of absorbent material.
Claims20
Apparatus for dispensing a fine spray of liquid particles, the apparatus comprising an elongate hollow tubular casing within which is retained a pen formed with a nib of absorbent material, the casing including at one end a mouthpiece and at its other end a nozzle having an orifice into which the nib of the pen at least partially protrudes, spacings between the internal surface of the casing and the pen periphery defining one or more passageways for the flow of air blown into the casing through the mouthpiece which passes over the nib of the pen and leaves the casing through the orifice, the apparatus being characterised in that the internal cross-section is formed with a plurality of lengthwise-extending locating surfaces between which is retained the pen and in that the orifice of the nozzle communicates with an expansion chamber into which the nib of the pen can at least partially protrude, the spacings between neighbouring locating surfaces and the pen periphery defining passageways for the flow of air through the casing, this air leaving the casing through the orifice and the expansion chamber.
Apparatus as claimed in wherein the casing interior is formed over at least a major part of its length with three or more generally flat sides, the apices between neighbouring sides defining passageways for the flow of air when a pen or cartridge is positioned in the casing.
Apparatus for dispensing a fine spray of liquid particles, the apparatus comprising:
- an elongate hollow tubular casing having at one end a nozzle with an orifice and at its other end a mouthpiece with a mouthpiece opening, the mouthpiece comprising a cap and an air passageway defined adjacent the cap, the cap being closed toward the mouthpiece opening and open toward the nozzle;
- and
- a pen having a nib formed of absorbent material, the pen being retained in the casing in a first position in which the nib of the pen protrudes in communication with the orifice of the nozzle such that air blown into the casing through the mouthpiece passes over the nib of the pen and leaves the casing through the orifice, and a second position reversed from the first position in which the nib of the pen extends into the cap to effectively seal the nib within the cap.
Dependencies are inferred from the claim text.