US3710990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol type dispenser
Assignee: Individual
•
Filing: 1970-06-01
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Granted: 1973-01-16
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Expires: 1990-06-01
Abstract
Abstract An aerosol dispenser for dispensing fluids under pressure in which the dispenser has a spiral restricted passage between the dip tube and valve and through which the fluid to be dispensed passes when the valve is opened, the number of spirals in the restricted passage being not less than one and not more than 100, preferably between six and 50, and the diameter of such restricted passage being such that the fluid is retained therein, except when being dispensed, by capillary action.
Inventors
- 👤 S Lazarus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:45
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/48; B65D83/16; B65D83/162
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
An aerosol dispensing pressure container having a dip tube immersed at one of its ends In the liquid in said container to be dispersed and connected at its opposite end to a valve which, when open, allows said liquid in said container to pass through said dip tube and be dispensed and, when closed, maintains said liquid under pressure in said dip tube and said container, a spiral passageway member at the valve end of said dip tube in which said spiral passageway member is a resilient accordian member seated, at one of its ends, against said valve seat and seated, at its opposite end, against a wall of the valve housing and forming between said valve and said wall a resilient member for closing said valve.
Claim 2
Dependent Claim
127 words
An aerosol dispensing pressure container having a dip tube immersed at one of its ends In the liquid in said container to be dispersed and connected at its opposite end to a valve which, when open, allows said liquid in said container to pass through said dip tube and be dispensed and, when closed, maintains said liquid under pressure in said dip tube and said container, a spiral passageway member at the valve end of said dip tube in which said spiral passageway member is a resilient accordian member seated, at one of its ends, against said valve seat and seated, at its opposite end, against a wall of the valve housing and forming between said valve and said wall a resilient member for closing said valve.
Claim 3
Dependent Claim
52 words
An aerosol dispensing pressure container, as recited in claim 1, in which said spiral passageway member has a spiral groove extending along its outer wall, said spiral groove and the inner wall of said valve housing forming said spiral passageway for restricting the flow of said liquid when said valve is open.
Claim 4
Dependent Claim
32 words
An aerosol dispensing pressure container, as recited in claim 2, in which said spiral passage is of a diameter in which the liquid in said container will be retained by capillary action.
Claim 5
Dependent Claim
30 words
AN aerosol dispensing pressure container, as recited in claim 3, in which the number of spirals in said spiral passage are not less than one and not more than 100.
Claim 6
Dependent Claim
30 words
An aerosol dispensing pressure container, as recited in claim 4, in which the number of spirals in said spiral passage are not less than six and not more than 50.
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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |