US3960123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine speed maintaining apparatus
Assignee: Individual
•
Filing: 1974-10-04
•
Granted: 1976-06-01
•
Expires: 1994-10-04
Abstract
Abstract An internal combustion engine with vacuum operated bellows for maintaining a throttle position, has a fan pressure responsive control for the vacuum applied to the bellows. A manual adjustment is provided, for speed to be maintained, and a brake pedal operated switch vents the vacuum of the bellows to disable the control until manually reinstated by pushing a button.
Inventors
- 👤 Kenneth L. Berninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:21
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/06; B60K31/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
119 words
An engine speed responsive control for an internal combustion engine comprising: an engine fuel intake control; a fluid operated driver for said intake control; a pressure responsive control valve means coupled to said driver and operable upon sensing a pressure above a predetermined level to disable said driver, said control valve means including a first input for a source of pressure, a valve port, and a valve member operable to normally close said valve port but movable to open said valve port; an engine driven fan; a pressure pick-up at said fan to develop pressure in response to fan motion; and a conduit coupling said pick-up to said first input for transmitting to said input, pressure from said pick-up.
Claim 2
Dependent Claim
119 words
An engine speed responsive control for an internal combustion engine comprising: an engine fuel intake control; a fluid operated driver for said intake control; a pressure responsive control valve means coupled to said driver and operable upon sensing a pressure above a predetermined level to disable said driver, said control valve means including a first input for a source of pressure, a valve port, and a valve member operable to normally close said valve port but movable to open said valve port; an engine driven fan; a pressure pick-up at said fan to develop pressure in response to fan motion; and a conduit coupling said pick-up to said first input for transmitting to said input, pressure from said pick-up.
Claim 3
Dependent Claim
45 words
The control of claim 1 wherein: said control valve means include a chamber communicating with said first input and having a wall movable by pressure in said chamber, said movable wall being disposed to move said valve member to open and close said valve port.
Claim 4
Dependent Claim
79 words
The control of claim 2 and further comprising: an enabling device including an electromagnet; a second valve port; a second valve member operable to close and open said second valve port, said second valve member being movable by said electromagnet so that said second valve member holds closed said second port when said electromagnet is energized, and said second valve member having spring means connected thereto to move said member to port opening condition when said magnet is de-energized.
Claim 5
Dependent Claim
39 words
The control of claim 3 wherein: said spring means is strong enough to keep said electromagnet from causing said second valve member to close said second port when energized unless external force is applied to said second valve member.
Claim 6
Dependent Claim
37 words
The control of claim 4 and further comprising: a manual reset button engageable with said second valve member and operable when manually pushed to aid said electromagnet in moving said second valve member to port closing position.
Claim 7
Dependent Claim
67 words
The control of claim 5 further comprising: vehicle stop light means; vehicle electrical energy source means; a normally open switch in series with said energy source and said light means and operable when closed to energize said light means; said magnet being in parallel with said switch and substantially de-energized when said switch is closed to thereby disable said magnet from holding closed said second port means.
Claim 8
Dependent Claim
37 words
The control of claim 6 wherein: said pressure responsive control valve means is coupled to said driver through a conduit coupled to said driver and to the first mentioned valve port and the second mentioned valve port.
Claim 9
Dependent Claim
84 words
The control of claim 7 and further comprising: an engine vacuum tap; a conduit coupling said vacuum tap to said driver and communicating engine vacuum to said driver to cause said driver to move said fuel intake control in a flow increasing direction in response to increases in engine vacuum at said tap; the conduit coupled between said ports and said driver serving to supply air to said tap whenever either of said valve members is open, to reduce vacuum applied to said driver.
Claim 10
Dependent Claim
38 words
The control of claim 8 and further comprising: a flow restricting orifice between said tap and said conduits to preclude excessively quick operation of said driver upon pushing said reset button during minimal pressure conditions at said pick-up.
Claim 11
Dependent Claim
50 words
The combination of claim 9 and further comprising: A manually adjustable wheel and loading spring connected to said first mentioned valve member and operable to select and predetermine said level of pressure for disabling said driver from causing further movement of said fuel intake control in a flow increasing direction.
Claim 12
Dependent Claim
61 words
The combination of claim 10 and further comprising: an engine compartment and passenger compartment, said control valve means being located in said passenger compartment and said pressure pick-up being in said engine compartment; pressure balancing means coupled from said engine compartment to said control valve means; said reset button and said selector control being located and exposed in said passenger compartment.
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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |