Article dispensing – With discharge assistant – Reciprocating
Reexamination Certificate
1999-08-13
2001-11-27
Walsh, Donald P. (Department: 3651)
Article dispensing
With discharge assistant
Reciprocating
C401S010000, C401S124000, C222S192000, C222S321700
Reexamination Certificate
active
06321937
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to an aerosol dispensing system having a pressurized container which stores propellant and concentrate with an on-board wiper dispenser, and more particularly to an aerosol can which includes a on-board towel dispenser.
BACKGROUND OF THE INVENTION
Aerosol dispensing systems typically consist of a cylindrical metal container which stores a concentrate and propellant which are under pressure. A plastic spray dome covers and activates a valve to initiate the flow of concentrate and propellant which mix and disburse in an aerosol spray. Such aerosol dispensers can conveniently and safely disburse a variety of chemical compositions including paint, insecticide, and lubricants. Aerosol dispensers, especially aerosol cans, are also commonly used for applications such as cleaning chemicals, in which the user needs a paper towel, cloth wipe or other absorbent material to wipe the cleaned surface or wipe up any excess of the material being dispensed. It may often be inconvenient to carry a separate towel holder in addition to the aerosol can. As a result, some users stuff paper towels in a pocket of their clothing, but the towels can become intertwined and difficult to separate. Cleaning supply caddies can be used to carry one or more aerosol cans, a roll of paper towels and other items. An example of such a caddy is shown in U.S. Pat. No. 5,035,321. However, this approach requires the purchase of a caddy, and the user must carry the large caddy even if only one aerosol can and a few wipes are needed.
SUMMARY OF THE INVENTION
The present invention relates to aerosol dispensing systems which store concentrate and propellant under pressure and provide an on-board wiper dispenser, and which are designed so as to overcome the disadvantages of conventional aerosol dispensers. The invention has particular utility with metal aerosol cans which contain cleaning products.
More particularly, the present invention includes a cup which is removably attached to the bottom of the aerosol can. The cup contains an absorbent wiper such as paper towels.
The advantages of the invention are adaptable to pressurized aerosol dispensing systems without adversely impacting the printing area for the can. The dispensing system permits essentially the entire cylindrical container to contain printing and graphic information such as product information and advertising, and creates a commercially attractive aerosol dispensing system.
One object of the present invention is to provide an aerosol dispensing system having readily available absorbent wiping materials.
Another object is to provide aerosol dispensers particularly useful for industrial applications and consumer applications involving cleaning chemicals in which users may need to wipe up excess sprayed material using a paper towel or other absorbent wiper.
Another object of the invention is to provide convenient means for replenishing the supply of absorbent material without replacing the entire aerosol can.
Other objects and advantages of the present invention will be apparent from the following description with reference to the attached drawings.
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DeSimone Ronald F.
Messina Richard
Williams Charles L.
Chase Products Company
Crawford Gene O.
Jenner & Block LLC
Walsh Donald P.
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