US4846135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for recovering gasoline vapors
Assignee: Automobiles Peugeot SA
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Filing: 1988-07-29
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Granted: 1989-07-11
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Expires: 2008-07-29
Abstract
Abstract The device includes a filter containing a material which adsorbs the vapors coming from a tank. The filter is connected through a first duct to the upper part of the tank, through a second duct to a source of depression and through a third duct to a source of air for regenerating the adsorbent material. Apparatus is provided for heating the regenerating air. The device further includes apparatus for regulating the temperature of the air flowing in the third duct, this apparatus has a temperature response control element disposed in the filter. The device is particularly useful in automobile vehicles.
Inventors
- 👤 Jean Tiphaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:41
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/08; F02M2025/0881
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
173 words
A device for recovering gasoline vapors from a tank, said device comprising a filter containing a material adsorbing said vapors, a source of depression, a source of air for regenerating the adsorbent material, a first duct for connecting the filter to an upper part of the tank, a second duct for connecting the filter to said source of depression, a third duct for connecting the filter to said source of air, means for heating said regenerating air, and means for regulating the temperature of the air which flows in the third duct, said temperature regulating means comprising a control element which is responsive to temperature and disposed in the filter; wherein said source of air comprises a source of cold air and a source of hot air and the third duct is connected to said source of cold air and to said source of hot air, and a closure member is associated with said source of cold air and said source of hot air for selecting the required source from said two sources.
Claim 2
Independent Claim
173 words
A device for recovering gasoline vapors from a tank, said device comprising a filter containing a material adsorbing said vapors, a source of depression, a source of air for regenerating the adsorbent material, a first duct for connecting the filter to an upper part of the tank, a second duct for connecting the filter to said source of depression, a third duct for connecting the filter to said source of air, means for heating said regenerating air, and means for regulating the temperature of the air which flows in the third duct, said temperature regulating means comprising a control element which is responsive to temperature and disposed in the filter; wherein said source of air comprises a source of cold air and a source of hot air and the third duct is connected to said source of cold air and to said source of hot air, and a closure member is associated with said source of cold air and said source of hot air for selecting the required source from said two sources.
Claim 3
Dependent Claim
37 words
A device according to claim 1, in combination with an engine having an intake pipe, said device further comprising a depression capsule and a thermovalve constituting said control element for connecting the capsule to said intake pipe.
Claim 4
Dependent Claim
38 words
A device according to claim 2, further comprising an electrical valve interposed between said thermovalve and said intake pipe, and means for controlling said electrical valve as a function of at least one operating parameter of said engine.
Claim 5
Dependent Claim
42 words
A device according to claim 1, in combination with an engine, said device further comprising an electrical valve inserted in the second duct and means for controlling the electrical valve as a function of at least one operating parameter of said engine.
Claim 6
Dependent Claim
31 words
A device according to claim 1, in combination with a vehicle having an engine, wherein a computer which controls and manages the operation of the engine also controls said control element.
Claim 7
Dependent Claim
23 words
A device according to claim 3, wherein a computer which controls and manages the operation of the engine also controls said electrical valve.
Claim 8
Dependent Claim
23 words
A device according to claim 4, wherein a computer which controls and manages the operation of the engine also controls said electrical valve.
References Cited (Backward Citations)
US3643690A
Cited
US3765435A
Cited
US3800978A
Cited
US3910302A
Cited
US3970098A
Cited
US3996951A
Cited
US4095609A
Cited
JPS55161952A
Cited
JPS56544A
Cited
JPS58220951A
Cited
US4579135A
Cited
JPS6220668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |