US3835896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of filling aerosol spray cans
Assignee: FOX VALLEY MARKETING SYSTEMS Inc
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Filing: 1973-01-02
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Granted: 1974-09-17
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Expires: 1993-01-02
Abstract
Abstract A method of filling aerosol spray cans with paint or other marking material so that the can is able to spray marking material in a well-defined stripe having substantially sharp edges. The can is filled with paint, capped with a valve, and pressurized with aerosol propellant in the conventional manner. The valve is then opened to release some of the propellant but substantially no marking material. The time of opening the valve varies depending on the type of marking material in the can, but the time generally is between about 1 to 60 seconds and usually between about 5 to 25 seconds.
Inventors
- 👤 T Smrt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:51
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/003
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
189 words
A method of preparing an aerosol spray marking can for spraying marking material comprising the steps of: providing a can having an open top, introducing into the open top of the can a quantity of marking material, inserting valve means in the open top of the can and securing the valve means to the can to close the top of the can, the valve means being moveable between an open position in which the interior of the can communicates with the exterior of the can and a closed position in which the interior of the can is sealed from the exterior of the can, opening the valve means and introducing a quantity of propellant under pressure through the valve means and closing the valve means, and thereafter opening the valve means to release a relatively small quantity of propellant but substantially no marking material and then closing the valve means so that when the can is later positioned and manipulated and the valve means is opened to spray a stripe of the marking material the marking material will be sprayed in a uniform, well-defined stripe having substantially sharp edges.
Claim 2
Independent Claim
189 words
A method of preparing an aerosol spray marking can for spraying marking material comprising the steps of: providing a can having an open top, introducing into the open top of the can a quantity of marking material, inserting valve means in the open top of the can and securing the valve means to the can to close the top of the can, the valve means being moveable between an open position in which the interior of the can communicates with the exterior of the can and a closed position in which the interior of the can is sealed from the exterior of the can, opening the valve means and introducing a quantity of propellant under pressure through the valve means and closing the valve means, and thereafter opening the valve means to release a relatively small quantity of propellant but substantially no marking material and then closing the valve means so that when the can is later positioned and manipulated and the valve means is opened to spray a stripe of the marking material the marking material will be sprayed in a uniform, well-defined stripe having substantially sharp edges.
Claim 3
Dependent Claim
30 words
The method of claim 1 in which the opening of the valve means to release the relatively small quantity of propellant occurs for between about 1 and about 60 seconds.
Claim 4
Dependent Claim
29 words
The method of claim 1 in which the opening of the valve to release the relatively small quantity of propellant occurs for between about 5 and about 25 seconds.
Claim 5
Dependent Claim
213 words
In a method of preparing an aerosol spray paint can for spraying paint comprising the steps of intermittently advancing a can having an open top along a path of can movement, introducing a quantity of paint through the open top of the can at a first station, inserting valve means in the open top of the can at a second station and securing the valve means to the can to close the top of the can, the valve means being moveable between an open position in which the interior of the can communicates with the exterior of the can and a closed position in which the interior of the can is sealed from the exterior of the can, opening the valve means at a third station while introducing a quantity of propellant under pressure through the open valve means into the can and closing the valve means, the improvement characterized by opening the valve means at a fourth station to release a relatively small quantity of propellant but substantially no paint and then closing the valve means so that when the can is later held in a paint-spraying position and the valve means is opened to release the paint, the paint may be sprayed in a uniform, well-defined stripe having substantially sharp edges.
Claim 6
Dependent Claim
213 words
In a method of preparing an aerosol spray paint can for spraying paint comprising the steps of intermittently advancing a can having an open top along a path of can movement, introducing a quantity of paint through the open top of the can at a first station, inserting valve means in the open top of the can at a second station and securing the valve means to the can to close the top of the can, the valve means being moveable between an open position in which the interior of the can communicates with the exterior of the can and a closed position in which the interior of the can is sealed from the exterior of the can, opening the valve means at a third station while introducing a quantity of propellant under pressure through the open valve means into the can and closing the valve means, the improvement characterized by opening the valve means at a fourth station to release a relatively small quantity of propellant but substantially no paint and then closing the valve means so that when the can is later held in a paint-spraying position and the valve means is opened to release the paint, the paint may be sprayed in a uniform, well-defined stripe having substantially sharp edges.
Claim 7
Dependent Claim
24 words
The method of claim 4 in which the valve means is opened at the fourth station for between about 1 to about 60 seconds.
Claim 8
Dependent Claim
24 words
The method of claim 4 in which the valve means is opened at the fourth station for between about 5 to about 25 seconds.
Claim 9
Dependent Claim
30 words
The method of claim 4 in which the fourth stAtion comprises at least two substations, the valve means being opened at each substantion for substantially the same period of time.
Claim 10
Dependent Claim
19 words
The method of claim 4 in which the valve is opened at the fourth station of about 15 seconds.
Claim 11
Dependent Claim
46 words
The method of claim 4 in which the can is maintained upright as it is moved from the first through the fourth stations, the can not having a dip tube so that substantially no paint is released at the fourth station when the valve is opened.
References Cited (Backward Citations)
US3651997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |