US3696799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas vapor device
Assignee: Individual
•
Filing: 1970-12-04
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Granted: 1972-10-10
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Expires: 1990-12-04
Abstract
Abstract A gas vapor device for an internal combustion engine, the device having: a tube fluidly connecting the gas tank vent pipe to the carburetor and having a hole formed therein intermediate its ends; a canister disposed over the hole and sealed at the points where the tube enters and leaves the canister; and a hose fluidly connecting the canister to the air cleaner of the engine; wherein the combination provides for the direct utilization of gas vapors otherwise lost to the air.
Inventors
- 👤 Herbert M Gauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:06
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/08; F02M25/0854
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
193 words
In combination with an internal combustion engine and its associated fuel tank, the tank having an air vent for allowing vapors to escape therefrom and the engine having a carburetor, an air cleaner, and a manifold; a gas vapor device for utilizing fuel tank air vent escape vapors, comprising: a hollow canister having an inlet hole, an outlet hole and an opening formed therein; a tube fluidly connecting the air vent of the tank to the engine carburetor to permit the gas vapors in the tank to be drawn to the carburetor by the vacuum created therein due to the operation of the engine, said tube having a hole formed therein between the ends thereof, said hole permitting the flow of air into the tube during operation of the engine to prevent the collapse of the tube and the tank, said tube disposed in said inlet hole and said outlet hole with said tube hole disposed inside said canister; and a hose fluidly connected on one end to said canister at said canister opening and at the other end to the air cleaner thus permitting clean air to be drawn into said tube.
Claim 2
Dependent Claim
193 words
In combination with an internal combustion engine and its associated fuel tank, the tank having an air vent for allowing vapors to escape therefrom and the engine having a carburetor, an air cleaner, and a manifold; a gas vapor device for utilizing fuel tank air vent escape vapors, comprising: a hollow canister having an inlet hole, an outlet hole and an opening formed therein; a tube fluidly connecting the air vent of the tank to the engine carburetor to permit the gas vapors in the tank to be drawn to the carburetor by the vacuum created therein due to the operation of the engine, said tube having a hole formed therein between the ends thereof, said hole permitting the flow of air into the tube during operation of the engine to prevent the collapse of the tube and the tank, said tube disposed in said inlet hole and said outlet hole with said tube hole disposed inside said canister; and a hose fluidly connected on one end to said canister at said canister opening and at the other end to the air cleaner thus permitting clean air to be drawn into said tube.
Claim 3
Dependent Claim
27 words
A gas vapor device as defined in claim 1 and including sealing means disposed over said tube at said inlet and outlet holes to seal Said canister.
Claim 4
Dependent Claim
28 words
A gas vapor device as defined in claim 2 and including a closable opening formed in said canister to permit cleaning of said canister and said tube hole.
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 |