US5281401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor dispensing system
Assignee: Vaportek Inc
•
Filing: 1992-05-08
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Granted: 1994-01-25
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Expires: 2012-05-08
Abstract
Abstract A vapor dispensing system comprising a container adapted to contain a cartridge for controllably dispensing a liquid substance as a vapor, a pump for causing a flow of the vapor, conduit means for conveying the vapor flow including a first conduit communicating between the container and the pump, a second conduit communicable between the pump and the atmosphere, and means for controlling the flow of vapor.
Inventors
- 👤 John D. Bryson, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:58
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/14; F; F24; F24F; F24F3/00; F24F3/12; Y; Y10; Y10S; Y10S261/00; Y10S261/17
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
139 words
A vapor dispensing system comprising a container, a cartridge located in said container for dispensing a liquid substance as a vapor into said container, a conduit communicable with the atmosphere, an intermittently operable air and vapor mixture pump operably communicating between said container and said conduit for causing a flow of air and vapor mixture from said container to said conduit, one way valve means permitting inflow of air into said container from the atmosphere for mixture with said vapor in response to pump operation and preventing outflow of air from said container, and timer means connected to said pump for intermittently activating operation of said pump over a period of operational time which is variable for deactivating operation of said pump over a period of non-operational time which is variable independently of the variation of said operational time.
Claim 2
Dependent Claim
139 words
A vapor dispensing system comprising a container, a cartridge located in said container for dispensing a liquid substance as a vapor into said container, a conduit communicable with the atmosphere, an intermittently operable air and vapor mixture pump operably communicating between said container and said conduit for causing a flow of air and vapor mixture from said container to said conduit, one way valve means permitting inflow of air into said container from the atmosphere for mixture with said vapor in response to pump operation and preventing outflow of air from said container, and timer means connected to said pump for intermittently activating operation of said pump over a period of operational time which is variable for deactivating operation of said pump over a period of non-operational time which is variable independently of the variation of said operational time.
Claim 3
Dependent Claim
19 words
A system as set forth inc claim 1 and further including a selectively adjustable valve located in said conduit.
Claim 4
Dependent Claim
50 words
A system as set forth in claim 2 wherein said conduit includes a first portion communicating with said pump and second and third portions communicating with said first portion and wherein said valve is located in said conduit to adjustably control vapor flow into said second and third conduit portions.
References Cited (Backward Citations)
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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) | 1997-01-24 | 1997-07-26 | 1998-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-24 | 2001-07-26 | 2002-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-24 | 2005-07-26 | 2006-01-25 | $7700.00 | Window Closed / Lapsed |