US4325894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for control of liquid level in carburetor
Assignee: Honda Motor Co Ltd
•
Filing: 1979-07-11
•
Granted: 1982-04-20
•
Expires: 1999-07-11
Abstract
Abstract An apparatus to control a liquid level in a carburetor with a fuel chamber formed in a main body of the carburetor. A level detecting element, i.e., thermistor, in the upper portion of the main body produces an electrical signal in response to liquid level, opens and closes an electromagnetic valve. Inflow of the fuel to the chamber is thereby controlled. A small chamber is formed in the fuel chamber by a partition for insertion of the detecting element.
Inventors
- 👤 Tasuku Date
- 👤 Toshio Nomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:09
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/02; G; G05; G05D; G05D9/00; G05D9/12; Y; Y10; Y10S; Y10S261/00; Y10S261/50; Y10S261/74; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
126 words
An apparatus for control of a liquid level in a carburetor, including: a fuel chamber; said fuel chamber being formed in a carburetor main body; a liquid level detecting element, said liquid level detecting element being disposed at an upper portion of the interior of said fuel chaber; and an electromagnetic valve, said valve being controlled to open and close by a signal of the detecting element, so that inflow of fuel into the fuel chamber is controlled; said liquid level detecting element comprising a temperature dependent resistance for detecting by contact with the liquid surface; a small chamber being formed in said fuel chamber by means of a partition wall, and said element being provided in said fuel chamber for insertion in said small chamber.
Claim 2
Independent Claim
126 words
An apparatus for control of a liquid level in a carburetor, including: a fuel chamber; said fuel chamber being formed in a carburetor main body; a liquid level detecting element, said liquid level detecting element being disposed at an upper portion of the interior of said fuel chaber; and an electromagnetic valve, said valve being controlled to open and close by a signal of the detecting element, so that inflow of fuel into the fuel chamber is controlled; said liquid level detecting element comprising a temperature dependent resistance for detecting by contact with the liquid surface; a small chamber being formed in said fuel chamber by means of a partition wall, and said element being provided in said fuel chamber for insertion in said small chamber.
Claim 3
Dependent Claim
13 words
An apparatus as claimed in claim 1, wherein: said resistance is a thermistor.
Claim 4
Dependent Claim
42 words
An apparatus as claimed in claim 1, wherein: the fuel chamber is provided on one side and adjacent to a carburetor passage in said carburetor main body, and said detecting element is provided in the fuel chamber proximate to said carburetor passage.
Claim 5
Dependent Claim
30 words
An apparatus as claimed in claim 1, wherein: a ruffling preventing plate in the form of a lattice is provided in the fuel chamber so as to surround the element.
Claim 6
Dependent Claim
19 words
An apparatus as claimed in claim 1, wherein: said ruffling preventing plate is in the form of a net.
Claim 7
Dependent Claim
77 words
An apparatus as claimed in claim 1 wherein said resistance is a thermistor; said fuel chamber being located on one side and adjacent to a carburetor passage in said carburetor main body, and said detecting element being located in the fuel chamber proximate to said carburetor passage; a ruffling preventing plate in form of a lattice being in the fuel chamber so as to surround the element, said ruffling preventing plate being in form of a net.
References Cited (Backward Citations)
US1987981A
Cited
US2232035A
Cited
US3151468A
Cited
US3376026A
Cited
US3372912A
Cited
US3695590A
Cited
US4060576A
Cited
US4135186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-19 | 1985-10-19 | 1986-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-19 | 1989-10-19 | 1990-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-19 | 1993-10-19 | 1994-04-20 | $7700.00 | Window Closed / Lapsed |