Coating implements with material supply – Including means to apply material-moving force – Piston-provided reservoir
Reexamination Certificate
2000-09-12
2001-06-12
Walczak, David J. (Department: 3751)
Coating implements with material supply
Including means to apply material-moving force
Piston-provided reservoir
C401S272000, C401S270000, C401S261000, C401S205000, C015S147200, C015S229400, C015S228000, C015S220100
Reexamination Certificate
active
06244771
ABSTRACT:
FIELD OF THE INVENTION
This disclosure concerns liquid dispenser and distribution constructions. More specifically, this disclosure describes apparatus and methods for dispensing a cleaning solution to wash structures such as vehicles, windows, boats, or other objects.
BACKGROUND OF THE INVENTION
It is desirable to keep the exterior of objects, such as a vehicle, clean. Salt and other contaminants from the environment can cause a vehicle to rust. Various methods have been employed to wash the surfaces of objects. For example, a hose conveying water and a washcloth or brush have been used. Further, a brush attached to an elongated handle has been used. Other types of constructions and methods are also known.
Improvements in apparatus and methods for washing objects such as vehicles or other structures are desirable.
SUMMARY OF THE DISCLOSURE
In one aspect, the disclosure describes a liquid dispenser arrangement including a self-contained pump including a liquid reservoir and a discharge head having an applicator construction and an aperture. The aperture will be in liquid flow communication with the liquid reservoir. The discharge head is constructed and arranged to selectively take in liquid from an external liquid source through the aperture and convey the liquid to the liquid reservoir, when a pressure differential is established between the liquid reservoir and the external liquid source by the pump. The discharge head is also constructed and arranged to selectively eject liquid from the liquid reservoir through the aperture for distribution by the applicator construction.
Preferably, the applicator construction includes a molded, flexible member with the aperture being in a portion of the flexible member. In preferred embodiments, the applicator construction is curved on a radius of about 5-10 inches.
In preferred constructions, the applicator will include a selectively removable mitt covering at least a portion of the member.
Preferred embodiments will include the pump in the form of a tubular member, a plunger slidably received in the tubular member, and a seal member to provide a liquid seal between the tubular member and the plunger.
Preferably, the applicator will include a plurality of regions of differing compliance. Preferably, these regions of differing compliance will allow the applicator to conform to and comply with the surface that is being cleaned.
A method for washing a structure, such as an object like a vehicle, will preferably include constructions and apparatus as described above. In one method, a cleaning solution will be drawn through a porous mitt to fill a reservoir with the cleaning solution. The cleaning solution will be dispensed through the mitt by sliding a plunger into the reservoir.
In another aspect, a discharge head construction is described including a single, integral flexible member having a first section and a second section. The flexible member will have an aperture therethrough, and in preferred embodiments, the first section defines the aperture. Preferably, the second section circumscribes the first section and forms an outer periphery of the flexible member. In preferred embodiments, the second section has a compliance greater than that of the first section.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive.
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Bruggeman Daniel J.
Bruggeman Thomas W.
Kohs Stephen C.
Lever Charles J.
Diversified Dynamics Corporation
Merchant & Gould P.C.
Walczak David J.
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