Patent US3834367A successfully refreshed from Google Patents.
US3834367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetion attachment for auxiliary air
Assignee: Individual
•
Filing: 1973-05-18
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Granted: 1974-09-10
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Expires: 1993-05-18
Abstract
Abstract A carburetion attachment consisting of a relatively thin insert to be bolted between the carburetor and the intake manifold. The insert has the shape of a normal gasket separating the carburetor from the intake manifold. The insert has openings extending downwardly therethrough coinciding with the throats of the carburetor and the securing bolts therefor. One face of the insert has spiral grooves formed therein with their inner ends opening into the throat opening and their outer ends opening into the peripheral groove in the insert. A felt member is positioned in the peripheral groove to serve as a filter. A plate completely covers the spiral grooves and extends over half of the felt filter in the peripheral groove. The plate seals the spiral grooves to prevent the leakage of air therefrom.
Inventors
- 👤 R Dalerta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:10
CPC Classifications
F; F02; F02M; F02M23/00; F02M23/001; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
139 words
A carburetion attachment for insert between a carburetor and an inTake manifold for admitting additional air to the fuel-air mixture comprising a generally flat plate having a vertical throat bore extending therethrough, attachment bolt bores extending through said plate at spaced apart points therein, an annular groove opening deeply into the upper face of said plate adjacent the peripheral edge thereof, a plurality of relatively shallow spiral grooves having their outer ends communicating with said annular groove and their inner ends communicating with said throat, a ribbon felt filter positioned in said annular groove, and means for sealing said sprial grooves to prevent escape of air therefrom, said last named sealing means extending to a point intermediate the opposite side edges of said annular groove to direct the flow of air in said spiral grooves through said felt filter.
Claim 2
Dependent Claim
139 words
A carburetion attachment for insert between a carburetor and an inTake manifold for admitting additional air to the fuel-air mixture comprising a generally flat plate having a vertical throat bore extending therethrough, attachment bolt bores extending through said plate at spaced apart points therein, an annular groove opening deeply into the upper face of said plate adjacent the peripheral edge thereof, a plurality of relatively shallow spiral grooves having their outer ends communicating with said annular groove and their inner ends communicating with said throat, a ribbon felt filter positioned in said annular groove, and means for sealing said sprial grooves to prevent escape of air therefrom, said last named sealing means extending to a point intermediate the opposite side edges of said annular groove to direct the flow of air in said spiral grooves through said felt filter.
Claim 3
Dependent Claim
29 words
A device as claimed in claim 1 wherein the means for sealing said spiral grooves comprises a relatively flat cover plate engaged to the upper surface of said attachment.
Claim 4
Dependent Claim
18 words
A device as claimed in claim 2 wherein a pair of throat opening bores extend through said plate.
Claim 5
Dependent Claim
23 words
A device as claimed in claim 1 wherein four throat opening bores extend through said plate for attachment to a four barrel carburetor.
Claim 6
Dependent Claim
37 words
A device as claimed in claim 4 wherein a portion of said spiral grooves is on the upper face of said plate and a portion of said spiral grooves is on the lower face of said plate.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |