Patent US3780943A successfully refreshed from Google Patents.
US3780943A
Expired / Lapsed
US
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Spray apparatus and method
Assignee: Individual
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Filing: 1972-08-14
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Granted: 1973-12-25
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Expires: 1992-08-14
Abstract
Abstract A spray apparatus and method operable to concurrently discharge a spray product and air under pressure upon a surface. The air progressively atomizes the spray product upon discharge from an applicator to convert it into a fine, particulate, uniform spray. Air supply means provides air under pressure to a spray applicator as well as a spray product reservoir. Erratic air pressure fluctuation is not present in the reservoir. The air pressure requirement for the spray apparatus is relatively small.
Inventors
- 👤 D Lilja
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:25
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/0081; A; A45; A45D; A45D19/00; B05B7/02; B05B7/12; B05B7/1209; B05B7/24; B05B7/26; B05B7/28; B05B7/32; D; D01; D01D; D01D5/00; D01D5/08; D01D5/088; A45D19/0041; A45D19/005; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
169 words
An apparatus for the spraying of a spray product to obtain a fine particulate spray at low pressure comprising: a closed reservoir to contain the spray product; a main air line adapted to receive a supply of air under low pressure from an air supply means; spray applicator means operable to concurrently discharge air and a spray product in a fine particulate spray; said main air line connected directly to the spray applicator means to supply air under low pressure to the spray applicator means; an air pressure supply branch disposed between the main air line and the reservoir to supply air under pressure to the reservoir; a one-way air valve disposed in said air pressure supply branch orientated to allow the free passage of air from the main air line into the reservoir and restrict passage of air from the reservoir to the main air line; and a product line disposed between the reservoir and the spray applicator means to deliver spray product to the spray applicator means.
Claim 2
Independent Claim
169 words
An apparatus for the spraying of a spray product to obtain a fine particulate spray at low pressure comprising: a closed reservoir to contain the spray product; a main air line adapted to receive a supply of air under low pressure from an air supply means; spray applicator means operable to concurrently discharge air and a spray product in a fine particulate spray; said main air line connected directly to the spray applicator means to supply air under low pressure to the spray applicator means; an air pressure supply branch disposed between the main air line and the reservoir to supply air under pressure to the reservoir; a one-way air valve disposed in said air pressure supply branch orientated to allow the free passage of air from the main air line into the reservoir and restrict passage of air from the reservoir to the main air line; and a product line disposed between the reservoir and the spray applicator means to deliver spray product to the spray applicator means.
Claim 3
Dependent Claim
16 words
The spray apparatus of claim 1 including: a pressure accumulator disposed in said main air line.
Claim 4
Dependent Claim
15 words
The spray apparatus of claim 1 wherein: said spray applicator means comprises a spray gun.
Claim 5
Dependent Claim
24 words
The spray apparatus of claim 1 wherein: said one-way air valve includes a pliable, tubular, valving insert having collapsible closure means at one end.
Claim 6
Dependent Claim
20 words
The spray apparatus of claim 1 wherein: said air pressure supply branch connects with the upper portion of said reservoir.
Claim 7
Dependent Claim
20 words
The spray apparatus of claim 1 wherein: said air pressure supply branch connects with the lower portion of said reservoir.
Claim 8
Dependent Claim
63 words
The spray apparatus of claim 1 including: a plurality of said spray reservoirs associated with an equal plurality of spray applicator means; said main air line connected to each of said spray applicator means; an air pressure supply branch disposed between said main air line and each of said reservoirs; and a one-way air valve disposed in each said air pressure supply branch.
Claim 9
Dependent Claim
47 words
The spray apparatus of claim 1 wherein said spray apparatus is adapted for use in a beauty salon and including air supply means adapted to supply air to said main air line at a pressure between 8 pounds per square inch and 12 pounds per square inch.
Claim 10
Dependent Claim
130 words
In a spray apparatus of the type having a low pressure air supply means, a main air line extending from the air supply means directly to a spray applicator, and a spray product line extending to the spray applicator for the concurrent discharge of spray product and air under pressure, a spray reservoir system comprising: a closed container suitable to store a spray product; inlet means disposed on said container to admiT air under pressure from said main air line; a one-way air valve integral with said inlet means orientated to allow the free passage of air from the main air line into the container and restrict passage of air from the container to the main air line; and outlet means integral with said container connected to said product line.
Claim 11
Dependent Claim
130 words
In a spray apparatus of the type having a low pressure air supply means, a main air line extending from the air supply means directly to a spray applicator, and a spray product line extending to the spray applicator for the concurrent discharge of spray product and air under pressure, a spray reservoir system comprising: a closed container suitable to store a spray product; inlet means disposed on said container to admiT air under pressure from said main air line; a one-way air valve integral with said inlet means orientated to allow the free passage of air from the main air line into the container and restrict passage of air from the container to the main air line; and outlet means integral with said container connected to said product line.
Claim 12
Dependent Claim
20 words
The spray reservoir system of claim 9 wherein: said inlet means is located on the upper portion of said container.
Claim 13
Dependent Claim
20 words
The spray reservoir system of claim 9 wherein: said inlet means is located on the lower portion of said container.
Claim 14
Independent Claim
86 words
A method of spraying a spray product in a fine, particulate spray including the steps of: directing air under relatively low pressure through a main air line directly to a spray applicator; directing a portion of the air from the main air line through an air branch having a one-way air valve to a spray product reservoir; and directing the spray product from the reservoir through a product line to the spray applicator for concurrent discharge with air from the main air line through the applicator.
Claim 15
Independent Claim
86 words
A method of spraying a spray product in a fine, particulate spray including the steps of: directing air under relatively low pressure through a main air line directly to a spray applicator; directing a portion of the air from the main air line through an air branch having a one-way air valve to a spray product reservoir; and directing the spray product from the reservoir through a product line to the spray applicator for concurrent discharge with air from the main air line through the applicator.
Claim 16
Dependent Claim
25 words
The method of claim 12 including the step of directing a portion of the air from the main air line to an air pressure accumulator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |