Coating implements with material supply – Material flows through porous tool
Reexamination Certificate
1999-03-23
2001-02-06
Shaver, Kevin (Department: 3754)
Coating implements with material supply
Material flows through porous tool
C222S456000
Reexamination Certificate
active
06183154
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a dispenser having a metering device, and more particularly to a dispenser for fluid material, such as an antiperspirant, deodorant or after-shave, wherein the material is applied through a porous dome applicator.
There are liquid applicators disclosed in the prior art, many of which have met with commercial success, one of which is the familiar type having a rotating ball which picks up liquid from a container and applies it to the desired surface.
Another type of dispenser is one wherein the applicator comprises a porous or microporous dome or membrane which may be manufactured of a polyurethane foam. Porous members of this type permit the liquid material to flow through the pores when the applicator is provided with a slight pressure, as it is applied to the surface upon which the liquid is to be deposited. This type of applicator has also met with success and has been manufactured in many forms.
However, a porous device of this type will generally deliver varying doses of material depending upon the particular manner in which it is used. It has been found that a uniform dose of material from the container is generally impossible to obtain from usage to usage in that the quantity of material delivered is dependent upon the pressure applied while dispensing the material, as well as the rigidity of the surface upon which the material is to be applied.
It is, therefore, an object of the present invention to provide a dispenser for fluid material which is effective to provide a uniform dosage of the material dispensed during successive applications.
Another object of the invention is to provide a dispenser for fluid material having a metering device which is both simple in construction and economical to manufacture.
A further object of the invention is to provide a dispenser of the type discussed which has a metering device adaptable for materials presently in use which are applied through a porous applicator.
Yet another object of the invention is to provide a dispenser having a metering device which may be installed in containers of a size and type generally in commercial use, and employed in the field of fluid dispensing.
SUMMARY OF THE INVENTION
The above objects and other objectives which will become apparent as the description proceeds are accomplished by providing a dispenser assembly for fluid material comprising a container having a closed end and an opposed dispensing end. A metering device is disposed in the container, the metering device having wall structure forming a dispensing cavity and a metering cavity, each separated from a storage cavity within the container. Wall structure is disposed between the metering cavity and the dispensing cavity for restricting flow of material between the metering cavity and the dispensing cavity.
The wall structure interconnecting the metering cavity with the dispensing cavity comprises a tubular element having one end extending into the metering cavity, and the wall structure forming the metering cavity is generally conical in shape having the smaller end disposed adjacent the dispensing cavity, while the wall structure forming the metering cavity is conical in shape having its smaller end disposed adjacent the metering cavity.
The wall structure forming the metering cavity has at least one opening formed adjacent the tubular element which interconnects the metering cavity with the storage cavity.
The wall structure forming the metering cavity is generally provided with a plurality of slotted openings formed therein extending toward the dispensing cavity for flow of material between the storage cavity and the metering cavity.
The metering device may also comprise an opening formed between the metering cavity and the dispensing cavity, having a plurality of flanges equally spaced about the opening and extending into the dispensing cavity.
REFERENCES:
patent: 1280654 (1918-10-01), Bream
patent: 1941745 (1934-01-01), Higley
patent: 2373551 (1945-04-01), Lauder
patent: 2693301 (1954-11-01), Allen, Jr.
patent: 2704623 (1955-03-01), Yasso
patent: 3223295 (1965-12-01), Falerni et al.
patent: 3224652 (1965-12-01), Ladwig
patent: 3565294 (1971-02-01), Schwartzman
patent: 4111567 (1978-09-01), Berghahn et al.
patent: 4424921 (1984-01-01), Feuerstein et al.
patent: 4480940 (1984-11-01), Woodruff
patent: 4652163 (1987-03-01), Karliner et al.
patent: 5230579 (1993-07-01), Klawson et al.
patent: 5449097 (1995-09-01), Meyer
patent: 5497906 (1996-03-01), Hester
patent: 5810210 (1998-09-01), Kelley et al.
patent: 5846011 (1998-12-01), Bernstein et al.
patent: 5876139 (1999-03-01), De Laforcade
Bastianelli John
Shaver Kevin
The Gillette Company
Williams Stephan P.
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