US3552369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary cold-starting carburetors for internal combustion engines and feeder tanks thereof
Assignee: HOLT LLOYD SA A OF FRANCE SA
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Filing: 1968-09-11
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Granted: 1971-01-05
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Expires: 1988-09-11
Abstract
Abstract This auxiliary carburetor comprises a reservoir which is recharged with liquid, in ordinary, nonatomized liquid form, from a recharge tank through check valves. The liquid is expelled, under air pressure, through a dipping tube and a diffuser which atomizes this liquid.
Inventors
- 👤 Maurice Frisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:31
CPC Classifications
F; F02; F02N; F02N99/00; F02N99/002; F02N99/008
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
196 words
An auxiliary carburetor for starting a cold internal combustion engine which comprises: a tank for storing liquid fuel; an inlet means through which said tank can be refilled which comprises a hollow male element provided at the upper portion of said tank which is adapted to operate a valve in a container providing liquid fuel under pressure to refill said auxiliary carburetor and an opening in said male element cooperating with a check valve disposed between said opening and said tank; a first duct ending in the upper part of said tank to supply air thereto; and an outlet means through which the fuel and air are directed into the engine disposed on the upper portion of said tank which comprises a duct connected on one end to the engine and the other with a first opening in the upper portion of the tank and further comprising a tube protruding downward into the lower portion of the tank and which is in connection with said duct having at least one bypass opening in said tube communicating with the upper portion of said tank, a check valve being provided in said duct downstream of said bypass opening.
Claim 2
Dependent Claim
196 words
An auxiliary carburetor for starting a cold internal combustion engine which comprises: a tank for storing liquid fuel; an inlet means through which said tank can be refilled which comprises a hollow male element provided at the upper portion of said tank which is adapted to operate a valve in a container providing liquid fuel under pressure to refill said auxiliary carburetor and an opening in said male element cooperating with a check valve disposed between said opening and said tank; a first duct ending in the upper part of said tank to supply air thereto; and an outlet means through which the fuel and air are directed into the engine disposed on the upper portion of said tank which comprises a duct connected on one end to the engine and the other with a first opening in the upper portion of the tank and further comprising a tube protruding downward into the lower portion of the tank and which is in connection with said duct having at least one bypass opening in said tube communicating with the upper portion of said tank, a check valve being provided in said duct downstream of said bypass opening.
Claim 3
Dependent Claim
59 words
An auxiliary carburetor according to claim 1 wherein said opening provided in said elongated male element has an axis transverse to the longitudinal axis of said male element and in which said male element is located in a recess adapted to receive in an interlocking manner said refilling container in order to eliminate any spilling in the refilling operation.
Claim 4
Dependent Claim
28 words
An auxiliary carburetor according to claim 1 wherein the cross-sectional area of the opening in said male element is less than the cross-sectional area of the bypass opening.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |