US4149675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor emitter
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1977-07-25
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Granted: 1979-04-17
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Expires: 1997-07-25
Abstract
Abstract A vapor-emitter capable of continuously and slowly emitting vapors, and repeatedly and rapidly expelling a boost of vapors, into the atmosphere surrounding the container, comprising a container having at least one slow release generator positioned therein, characterized in that the container is provided with at least one opening at two different locations, the slow release generator being part of or forming a substantially vapor-tight partition between the locations and being in contact with the atmosphere on both sides of the partition, and expelling means being provided for expelling vapor-containing air from the container.
Inventors
- 👤 Adriaan W. Van Breen
- 👤 Eugene Nicolai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:56
CPC Classifications
A; A01; A01M; A01M13/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
108 words
A vapour-emitter comprising a hollow container open at both ends, a slow release generator movably mounted within said container for movement between said ends and forming between said ends a substantially vapour-tight partition, support means at both ends of the container to retain the slow release generator in said container, said slow release generator when positioned at one end of the container forming with the support means a closure for that end and further forming with the container wall a reservoir of stored vapor-containing air, which air is emptied from the reservoir when the slow release generator is moved from one end of said container to the other.
Claim 2
Dependent Claim
108 words
A vapour-emitter comprising a hollow container open at both ends, a slow release generator movably mounted within said container for movement between said ends and forming between said ends a substantially vapour-tight partition, support means at both ends of the container to retain the slow release generator in said container, said slow release generator when positioned at one end of the container forming with the support means a closure for that end and further forming with the container wall a reservoir of stored vapor-containing air, which air is emptied from the reservoir when the slow release generator is moved from one end of said container to the other.
Claim 3
Dependent Claim
12 words
The vapour-emitter of claim 1 wherein the container is a hollow cylinder.
Claim 4
Dependent Claim
20 words
The vapour-emitter of claim 2 wherein the slow release generator is a slidably or rotatably mounted solid or hollow sphere.
Claim 5
Dependent Claim
15 words
The vapour-emitter of claim 2 wherein the slow release generator is a reciprocally mounted piston.
Claim 6
Dependent Claim
27 words
The vapour-emitter of claim 3 wherein movement of the slow release generator is caused by turning the container from one vertical position to a second vertical position.
Claim 7
Dependent Claim
20 words
The vapour-emitter of claim 1 wherein the ends of the container are provided with closing means when not in use.
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) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |