US3660671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric power takeoff system
Assignee: Individual
•
Filing: 1970-07-20
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Granted: 1972-05-02
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Expires: 1990-07-20
Abstract
Abstract An electric power takeoff system for operative association with electric output devices such as alternators or generators driven by an engine such as providing motive power for vehicles of different types, stationary engines and other types of power plant apparatus. The electric power takeoff system operates to provide operating power for operating electrical appliances, battery charging and welding attachments, directly therefrom, the appliances and attachments operating on DC current in voltage ranges from 1 to 220 volts DC. The system includes a means of adjusting electric output by changing the rpm of the engine driving the alternator, so as to match voltage requirement on appliances being operated, or combination thereof, the functions being performed through the system and automatically operable upon actuation of an appliance switch when connected into the system and engine speed, and therefore electric power output, will be automatically established upon actuation of the appliance. The system includes an automatic, electromagnetic working solenoid functioning to increase engine speed and also change circuitry to provide a fail safe system to preclude endangering an alternator, regulator or electrical system associated with the engine. A fail safe circuitry is provided to accommodate operating the system for battery charging in voltage ranges of 1-220 volts DC and polarity protection is incorporated within the on-off switch circuitry in the event of improper hookup to a battery being charged. The system also incorporates a safe and simple hook-up feature for quick association with a vehicle system incorporating such an engine providing preassembled and connected wiring.
Inventors
- 👤 Edwin R Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:58
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/08; H02P2101/00; H02P2101/45
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
259 words
An electrical power regulating accessory system for operating a DC electrically powered appliance off a vehicle engine with electric power generation including in circuit a regulator, an engine driven alternator including two terminals, a DC storage battery, and an engine accelerator control means and with an electromechanical circuit comprising: A. a first series circuit including at least one two contact electrical receptacle, said alternator, the coils of an electromagnetic reed switch means, said reed switch means operable upon closing of said series circuit; B. a second series circuit including the said electromagnetic reed switch, said battery, and a double-throw switch means operable upon operation of said reed switch means, one throw of said double-throw switch means upon operation completing said second series circuit and the second throw of said double-throw switch means upon operation electrically connecting said DC storage battery to a first said alternator terminal; C. said first alternatOr terminal selectively connected in series with a second alternator terminal, and an energizing coil of an electromechanical solenoid, said solenoid comprising plunger means operatively connected at one end to said engine speed control means for selective actuation thereof; D. a plurality of normally closed solenoid contacts associated with said solenoid, said solenoid contacts operatively disconnectable upon plunger means movement, said solenoid contacts in the closed position connecting in a third series circuit the first of said alternator terminals and the second of said alternator terminals; whereby upon actuation of said reed switch means, said DC storage battery is disconnected from the said system and the engine speed is regulated.
Claim 2
Dependent Claim
259 words
An electrical power regulating accessory system for operating a DC electrically powered appliance off a vehicle engine with electric power generation including in circuit a regulator, an engine driven alternator including two terminals, a DC storage battery, and an engine accelerator control means and with an electromechanical circuit comprising: A. a first series circuit including at least one two contact electrical receptacle, said alternator, the coils of an electromagnetic reed switch means, said reed switch means operable upon closing of said series circuit; B. a second series circuit including the said electromagnetic reed switch, said battery, and a double-throw switch means operable upon operation of said reed switch means, one throw of said double-throw switch means upon operation completing said second series circuit and the second throw of said double-throw switch means upon operation electrically connecting said DC storage battery to a first said alternator terminal; C. said first alternatOr terminal selectively connected in series with a second alternator terminal, and an energizing coil of an electromechanical solenoid, said solenoid comprising plunger means operatively connected at one end to said engine speed control means for selective actuation thereof; D. a plurality of normally closed solenoid contacts associated with said solenoid, said solenoid contacts operatively disconnectable upon plunger means movement, said solenoid contacts in the closed position connecting in a third series circuit the first of said alternator terminals and the second of said alternator terminals; whereby upon actuation of said reed switch means, said DC storage battery is disconnected from the said system and the engine speed is regulated.
Claim 3
Dependent Claim
46 words
A system as claimed in claim 1, said magnetic switch comprising a magnetic reed type, and capacitors and resistors in circuit with said switch operable to eliminate damaging sparking on contacts of said switch induced from reverse voltage from plunger hold in means for said solenoid.
Claim 4
Dependent Claim
41 words
A system as claimed in claim 2, said switch, said capacitors and said resistors being encapsulated in a heat sink including an epoxy and high content of metal in suspension for enhanced thermal conductivity for damage protection from circuit dead shorting.
Claim 5
Dependent Claim
33 words
The system as claimed in claim 1 wherein said first series circuit is closed by the insertion and switching on of an appliance plug into one of the said two contact electrical receptacles.
Claim 6
Dependent Claim
26 words
The system as claimed in claim 1 wherein upon opening of said first series circuit, said plunger means return said solenoid contacts to original closed position.
Claim 7
Dependent Claim
32 words
A system as claimed in claim 1, further comprising rectifying diodes electrically associated with said alternator whereby alternating current is converted to direct current for transmission to said receptacle during appliance use.
Claim 8
Dependent Claim
61 words
A system as claimed in claim 6, and further including two receptacles, said receptacles being adapted for simultaneous connection to a battery charge unit for double amperage carrying capacity, said receptacles having the wiring thereof in the form of a coil embedded in epoxy in a heat sink in an appliance connector to draw heat from said outlets for cooling thereof.
Claim 9
Dependent Claim
50 words
A system as claimed in claim 7, said appliance constituting an electric weld unit, said circuit including by-pass means for said reed switch whereby upon striking an arc, a relay with actuating coil across the DC output circuitry will close the contact of said relay and by-pass said reed switch.
Claim 10
Dependent Claim
25 words
A system as claimed in claim 8, and further including second plug-in outlets of a fixed voltage differing from that of said first named outlets.
Claim 11
Dependent Claim
62 words
A system as claimed in claim 6, and further including a fiber terminal block having an eyelet terminal and three additional terminals, electrical circuit wiring being pre-connected and installed on said terminal block, and the circuit eyelet being connected to the alternator, the alternator, battery, neutral terminal and regulator being respectively connected in circuit to said pre-established terminals on said terminal block.
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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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |