US3696973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand-held air compressor and liquid spray device
Assignee: Individual
•
Filing: 1969-12-09
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Granted: 1972-10-10
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Expires: 1989-12-09
Abstract
Abstract A hand-held air compressor having motor air pump and air discharge fitting which mates with a male fitting on a disposable plastic container for liquid to be sprayed, the top of the container having a movable inner plug containing a smooth plastic jet, which in one position aligns a conduit from the male fitting to the jet and also connects with a conduit extending to near the bottom of the container, permits spraying of the liquid, such as a hair spray, when connected with a plug in the position described. When the plug is turned through an angle, connection from the male fitting is sealed off and the jet is moved so that it is no longer opposite an opening in the top of the container. This seals off the container. Adjacent the jet is an air passage down into the container, half of which is indented into the plug and the other half of which is indented into the wall of the hole so that when the air jet passage is in line, this air passage is in line also. It is also sealed off when the plug is turned. The air compressor has charging contacts which fit into a conventional battery charger when the spray device is no longer in use.
Inventors
- 👤 Eric C Cottell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:14
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/24; B05B7/2402; B05B7/2405; B05B7/2416; B05B7/2424; F; F04; F04C; F04C29/00; F04C29/0042
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
204 words
A spray device comprising in combination, a. a light, hand-holdable air compressor capable of delivering air in large volume at low pressure, said air compressor being provided with a discharge fitting; b. a container for liquid to be sprayed having a top portion provided with means mating with the fitting on the air compressor and a liquid feed tube extending into the container and provided with an air conduit, the air compressor discharge fitting and the means on the top portion of the container mating therewith being sufficiently rigid so that when mated compressor and liquid container form a sub-stantially rigid and unitary structure, and c. a spray orifice and multiple position controller in the form of a plug insertable in and mating with the top portion of the liquid container, the controller in one position connecting the spray orifice to the fitting on the source of compressed air and to the liquid feed tube extending into the liquid container and in a second position to seal off the liquid container from the air conduit and to break the connection therefrom to the fitting on the air compressing means, whereby in this position the container for liquid to be sprayed is sealed against leakage.
Claim 2
Dependent Claim
204 words
A spray device comprising in combination, a. a light, hand-holdable air compressor capable of delivering air in large volume at low pressure, said air compressor being provided with a discharge fitting; b. a container for liquid to be sprayed having a top portion provided with means mating with the fitting on the air compressor and a liquid feed tube extending into the container and provided with an air conduit, the air compressor discharge fitting and the means on the top portion of the container mating therewith being sufficiently rigid so that when mated compressor and liquid container form a sub-stantially rigid and unitary structure, and c. a spray orifice and multiple position controller in the form of a plug insertable in and mating with the top portion of the liquid container, the controller in one position connecting the spray orifice to the fitting on the source of compressed air and to the liquid feed tube extending into the liquid container and in a second position to seal off the liquid container from the air conduit and to break the connection therefrom to the fitting on the air compressing means, whereby in this position the container for liquid to be sprayed is sealed against leakage.
Claim 3
Dependent Claim
50 words
A combination according to claim 1 in which the air compressing means is actuated by a storage battery, the air compressing means and the storage battery being mounted in a unitary element, a charger adapted to receive the air compressing means and to connect the storage batteries to charging current.
Claim 4
Dependent Claim
177 words
A container for liquid to be sprayed having a top structure, sides and bottom, said top structure forming with the sides and bottom a substantially unitary element, the top structure provided with hollow fitting matable with a fitting on a source of low pressure air, said top structure being provided with a central plug rotatable to two positions, said plug being provided with a spray nozzle and a conduit which in one position connects the spray nozzle with the fitting matable with the air compressing means, an opening in the top portion in which the plug turns which in the first position exposes the spray nozzle, a liquid aspirating tube extending into and down to near the bottom of the container and connecting to the spray nozzle, the central plug when rotated to a second position disconnecting the spray nozzle from compressed air source fitting and moving the spray nozzle to a position sealing against the outer portion of the upper part of the container, whereby in the second position the container is sealed from the atmosphere.
Claim 5
Dependent Claim
177 words
A container for liquid to be sprayed having a top structure, sides and bottom, said top structure forming with the sides and bottom a substantially unitary element, the top structure provided with hollow fitting matable with a fitting on a source of low pressure air, said top structure being provided with a central plug rotatable to two positions, said plug being provided with a spray nozzle and a conduit which in one position connects the spray nozzle with the fitting matable with the air compressing means, an opening in the top portion in which the plug turns which in the first position exposes the spray nozzle, a liquid aspirating tube extending into and down to near the bottom of the container and connecting to the spray nozzle, the central plug when rotated to a second position disconnecting the spray nozzle from compressed air source fitting and moving the spray nozzle to a position sealing against the outer portion of the upper part of the container, whereby in the second position the container is sealed from the atmosphere.
Claim 6
Dependent Claim
58 words
A container according to claim 3 in which the plug is provided with a passageway from the spray nozzle to the interior of the container, whereby when the plug is rotated to a position exposing the spray nozzle air can enter the container to break a vacuum and residual liquid after spraying can run back into the container.
Claim 7
Dependent Claim
14 words
A disposable container according to claim 4 in which the container is of plastic.
Claim 8
Dependent Claim
38 words
A disposable container according to claim 5 in which the rotatable plug is provided with a sealing shoulder mating with the top structure so that after the plug is inserted after filling the container the container becomes non-refillable.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |