Patent US4524741A successfully refreshed from Google Patents.
US4524741A
Expired / Lapsed
US
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Preset throttle release device
Assignee: Individual
•
Filing: 1984-05-10
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Granted: 1985-06-25
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Expires: 2004-05-10
Abstract
Abstract A preset throttle release device for use on drag racing cars to manually set a throttle linkage position at a desired setting restricting the maximum engine rpm at the beginning of a race. The device once set can be released providing a full range of throttle position once the race has begun.
Inventors
- 👤 Ronald W. Corbi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:05
CPC Classifications
F; F02; F02D; F02D11/00; F02D11/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
A preset throttle release for use on drag racing vehicles including an engine, a throttle linkage movable between a full opened and a closed position wherein said preset throttle release comprises a first cable assembly extending between said throttle linkage and a selective cable restraint means, said first cable assembly having a predetermined effective length for normal throttle linkage travel, means for adjustably foreshortening the effective length of said first cable assembly wherein said throttle linkage travel is restrained, means for presetting said effective length of said first cable assembly and means for releasing said foreshortened effective length of said first cable assembly while maintaining said presetting of said effective length of said first cable assembly.
Claim 2
Dependent Claim
116 words
A preset throttle release for use on drag racing vehicles including an engine, a throttle linkage movable between a full opened and a closed position wherein said preset throttle release comprises a first cable assembly extending between said throttle linkage and a selective cable restraint means, said first cable assembly having a predetermined effective length for normal throttle linkage travel, means for adjustably foreshortening the effective length of said first cable assembly wherein said throttle linkage travel is restrained, means for presetting said effective length of said first cable assembly and means for releasing said foreshortened effective length of said first cable assembly while maintaining said presetting of said effective length of said first cable assembly.
Claim 3
Dependent Claim
27 words
The preset throttle release of claim 1 wherein said selective cable restraint means comprises a cable release having a spring biased cable and an electromagnetic cable engagement.
Claim 4
Dependent Claim
40 words
The preset throttle release of claim 1 wherein said means for adjustably foreshortening the effective length of said first cable assembly comprises a second cable assembly connected between said first cable assembly and said means for preselecting said effective length.
Claim 5
Dependent Claim
33 words
The preset throttle release of claim 1 wherein said means for presetting said effective length of said first cable assembly comprises a control knob movably positioning a portion of said first cable assembly.
Claim 6
Dependent Claim
26 words
The preset throttle release of claim 1 wherein said means for releasing said foreshortened effective length of said first cable assembly comprises an electrically controlled circuit.
Claim 7
Dependent Claim
27 words
The preset throttle release of claim 5 wherein said electrically controlled circuit comprises a switch in communication with a power source and said selective cable restraint means.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-24 | 1988-12-24 | 1989-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-24 | 1992-12-24 | 1993-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-24 | 1996-12-24 | 1997-06-25 | $7700.00 | Window Closed / Lapsed |