US3482739A - Fluid dispenser - Google Patents

Description

Dec. 9, 1969 R. F. AS I 3, 8

FLUID DISPENSER Filed April 17. 1967 lllll I I ROBERT r? LAAS I N VEN TOR.

ATTORNEY United States Patent 3,482,739 FLUID DISPENSER Robert F. Laas, Houston, Tex., assignor to Imagineering Unlimited, Inc., Houston, Tex., a corporation of Texas Filed Apr. 17, 1967, Ser. No. 636,234 Int. Cl. B6511 47/18 U.S. Cl. 222-182 3 Claims ABSTRACT OF THE DISCLOSURE A fluid dispenser for selectively dispensing in drops fluids such as medicines, oils, and the like, having a rigid barrel and a flexible nozzle thereon forming a seal for said barrel and having an axial flow passageway therethrough, said nozzle being detachably mounted in said barrel and a cap also mountable on said barrel over said nozzle having means within said cap to engage said barrel and to engage and close said flexible nozzle.

Summary of the invention A fluid dispenser having a tubular barrel and a squeeze nozzle detachably mounted on one end of said barrel, said nozzle having an axial passageway through the forward tip, and a cap for said barrel detachabl mounted on said barrel and having means for closing said passageway in said tip when said cap is in position on said barrel.

Brief description of the drawings FIGURE 1 is a side elevational, cross sectional view of the device, and

FIGURE 2 is a side elevational cross sectional view of a modified form of the device.

Description of the preferred embodiments In the drawings the numeral 1 designates a rigid barrel, tubular in conformation and open at one end as at 2, said barrel having an annular flange 3 formed adjacent said open end on the inside wall thereof. A flexible nozzle 4, formed of a yieldable material, such as squeezable plastic, or the like, is provided with the enlarged open end 5 having the external annular groove 6 adapted to receive the flange 3 of the barrel when in engaged position. The nozzle 4 tapers to the diametrically reduced end portion 7, through which an axial passageway is formed. Reinforcing ribs 8 are formed on the external side walls of the nozzle 4. These ribs provide radial squeeze mediums, but provide axial resistance to distortion.

A cap 9, tubular in conformation, fits over the nozzle 4 and abuts the end of the barrel 1. The upper inside wall of the cap 9 has the chamber 10 adapted to receive the reduced end of the nozzle 4, and to close the passageway therethrough, when the cap is moved into position on the barrel 1, and the inside longitudinal walls of the cap 9 will abut the reinforcing ribs 8, which will yield to receive the cap, and to center the nozzle in the cap and to retain the cap in position. If desired, a suitable clip, as 11, may be mounted on the cap 9, so that the device may be carried in a pocket, in the same manner as a fountain pen.

Any desired fluid may be stored in the barrel 1, such as medicines and oils, and when the user wants to use some of this material, the cap 9 is removed, the tubular barrel 1 is inverted and the nozzle directed to where the fluid is to be applied, and the user milks the nozzle 4, by squeezing same, to force drops of fluid out of the nozzle tip through the passageway provided. The nozzle 4 is readily detachable from the barrel 1 and the barrel refilled.

In the form shown in FIGURE 2, the barrel 12 is rigid and shaped to receive the flexible insert 13, which may be filled with a fluid to be dispensed. The bottom of 3,482,739 Patented Dec. 9, 1969 the insert 13 has a removable plug 14, for refilling the insert. The upper end of the insert 13 is tapered as at 15, forming a nozzle, and the end of the nozzle is received in the chamber 17 formed in the cap 18. In this form, the nozzle of the insert will be tubular with inwardly tapered inside walls gradually closing the nozzle, so that when it is desired to dispense material in the insert, the end of the nozzle may be clipped off, leaving a passageway through which the fluid in the insert may be forced out by inverting the barrel and squeezing the nozzle. When the cap is replaced on the barrel, after use, the chamber 17 will receive the end of the nozzle and close the passageway therethrough.

While the foregoing are considered preferred embodiments of the invention, they are by way of illustration only, the broad principle of the invention being defined by the appended claims.

What I claim is:

1. In a dispensing device, a rigid tubular barrel, one end of said barrel being open, means adjacent said open end for receiving one end of an elongated flexible nozzle, the other end of said nozzle being reduced and having a passageway therethrough and having an exposed portion extending outwardly from said barrel, said exposed portion being compressible by finger pressure to dispense the contents of the barrel in drops, a cap on said barrel having a straight walled chamber therein positioned to receive said reduced end of said nozzle and to close said passageway therethrough, said nozzle being provided with reinforcing ribs longitudinally thereof adapted to abut the inside walls of said cap when said cap is in position on said barrel and to maintain said nozzle against collapse upon seating said reduced end into said chamber.

2. The device defined in claim 1 wherein said barrel has an annular flange on the inside wall adjacent the open end thereof, and said nozzle has an external annular groove adjacent one end thereof adapted to receive said annular flange of said barrel forming a liquid seal and a yieldable retaining means.

3. In a dispensing device, a rigid barrel, a cap mounted on one end of said barrel, a flexible insert loosely mounted in said barrel, one end of said insert being open and extendable into said barrel, a plug adapted to be mounted in said open end of said insert, the other end of said insert and a substantial portion of said insert extending out of said barrel and being inwardly tapered forming a nozzle, said cap having a chamber therein adapted to snugly receive the extended end of said nozzle when said cap is mounted on said barrel closing the passageway therethrough, said nozzle having reinforcing ribs mounted thereon and adapted to maintain said nozzle against collapse upon mounting of said cap and to abut the inside walls of said cap when said cap is in position on said barrel.

References Cited UNITED STATES PATENTS 2,898,014 8/1959 Borah 222570 X 3,259,279 7/ 1966 Nojiri 222-562 X 2,053,892 9/1936 Beck 222490 X 2,571,010 10/1951 Busch 222490 X 2,684,789 7/1954 Marchant 222-490 X 2,713,872 7/1955 Juengling.

ROBERT B. REEVES, Primary Examiner N. L. STACK, JR., Assistant Examiner US. 01. X.R.

Images