US3699414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical control system
Assignee: Individual
•
Filing: 1971-10-15
•
Granted: 1972-10-17
•
Expires: 1991-10-15
Abstract
Abstract A control system for use with an electric motor which is energizable and driven through stored electrical power including first and second power sources. The control system comprises a rotatable cam which is manually operable through the action of an operator and is capable of actuating any of a plurality of successively located microswitch means in combination, and these microswitch means are connected to a plurality of solenoid actuable members containing suitable switching elements for enabling various modes of electrical power connection to the electric motor. The cam is capable of being rotated through a plurality of successive power regulating positions by manual actuation of a motor throttle mechanism. The microswitch means located at these power regulating positions control the various solenoid actuable members in such manner as to enable operative connection of the electric motor to the two power sources to provide the proper power to the motor for achieving the desired operating speed at the selected power regulating position. The switching elements are connected to provide an interlock circuit which prevents operation of the motor at any selected power regulating position until the cam has passed at least momentarily through each of the previous successively located power regulating positions. A manually operable forward-reverse mechanism is also provided for selectively controlling the application of power to the motor to cause either a forward or reverse rotation of the motor armature.
Inventors
- 👤 Louis Gyori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:03
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
152 words
A control system for use with electrically operable apparatus driven from a source of electrical power, said system comprising an actuating member movable through a plurality of successive power regulating positions from an initial power regulating position to a terminal power regulating position, and a plurality of power switching elements operatively controllable by said actuating member to enable operative connection of said apparatus to said source of electrical power to provide a selected amount of increasing power at each of said successive power regulating positions, each of said power switching elements being connected in such manner to form an electrical power interlock providing automatic deenergization of said apparatus with respect to said source of electrical power if said actuating member does not successively pass through and remain at least momentarily in each of said successive power regulating positions during movement from said initial power regulating position to said terminal power regulating position.
Claim 2
Dependent Claim
152 words
A control system for use with electrically operable apparatus driven from a source of electrical power, said system comprising an actuating member movable through a plurality of successive power regulating positions from an initial power regulating position to a terminal power regulating position, and a plurality of power switching elements operatively controllable by said actuating member to enable operative connection of said apparatus to said source of electrical power to provide a selected amount of increasing power at each of said successive power regulating positions, each of said power switching elements being connected in such manner to form an electrical power interlock providing automatic deenergization of said apparatus with respect to said source of electrical power if said actuating member does not successively pass through and remain at least momentarily in each of said successive power regulating positions during movement from said initial power regulating position to said terminal power regulating position.
Claim 3
Dependent Claim
62 words
The control system of claim 1 further characterized in that said source of electrical power comprises a plurality of stored electrical power sources, and said power switching elements enable operative connection between said electrically operable apparatus and said electrical power sources in a plurality of operative connection forms to provide said selected amounts of power at each of said power regulating positions.
Claim 4
Dependent Claim
70 words
The control system of claim 1 further characterized in that said system comprises a plurality of inductively actuable members, selected ones of said plurality of inductively actuable members being energizable in response to movement of said actuating member through said power regulating positions, and said power switching elements being controllable by said plurality of inductively actuable members to enable operative connection of said apparatus to said sources of electrical power.
Claim 5
Dependent Claim
24 words
The control system of claim 1 further characterized in that said inductively actuable members are solenoids and that said actuating member is a cam.
Claim 6
Dependent Claim
35 words
The control system of claim 1 further characterized in that said electrically operable apparatus is an electric motor drive for electrically powered vehicles and said source of electrical power comprises a plurality of storage batteries.
Claim 7
Dependent Claim
111 words
The control system of claim 1 further characterized in that said system comprises a resistive element operatively connectable with respect to said electrically operable apparatus, said source of electrical power comprises first and second stored electrical power sources, and that said power switching elements enable operative connection of said first and second power sources in parallel with respect to said electrically operable apparatus and shunted with said resiStive element at a first power regulating position, said power switching elements also enable operative connection of said first and second power sources in parallel with respect to said electrically operable apparatus without shunting by said resistive element at a second power regulating position.
Claim 8
Dependent Claim
181 words
The control system of claim 1 further characterized in that said system comprises a resistive element operatively connectable with respect to said electrically operable apparatus, said source of electrical power comprises first and second stored electrical power sources, and that said power switching elements enable operative connection of said first and second power sources in parallel with respect to said electrically operable apparatus and shunted with said resistive element at a first power regulating position, said power switching elements enable operative connection of said first and second power sources in parallel with respect to said electrically operable apparatus without shunting by said resistive element at a second power regulating position, said power switching elements enable operative connection of said first and second power sources in series with respect to said electrically operable apparatus and shunted with said resistive element at a third power regulating position, and said power switching elements enable operative connection of said first and second power sources in series with respect to said electrically operable apparatus without shunting by said resistive element at a fourth power regulating position.
Claim 9
Dependent Claim
43 words
The control system of claim 5 further characterized in that said system comprises selector means operatively connected to said power switching elements enabling a forward and reverse energization of said electric motor drive and forward and reverse movement of said electrically powered vehicles.
Claim 10
Dependent Claim
63 words
The control system of claim 1 further characterized in that said electrically operable apparatus is an electric motor drive for electrically powered vehicles and said source of electrical power comprises a plurality of storage batteries, and that safety override switch means is operatively connected to said power switching elements for automatically deenergizing said electric motor drive when an operator disembarks from said vehicle.
Claim 11
Dependent Claim
69 words
The control system of claim 1 further characterized in that said electrically operable apparatus is an electric motor drive for electrically powered vehicles and said source of electrical power comprises a plurality of storage batteries, and that brake means is operatively connected to said power switching elements to prevent operative connection between said first and second sources of power and said electric motor when said brake means is actuated.
Claim 12
Dependent Claim
112 words
An electrically powered apparatus having a rotatable member capable of being driven at a plurality of successively increasing speeds from a minimum speed to a maximum speed, said apparatus comprising an electric motor, means for supplying electric power to said electric motor, throttling means for controlling the speed of operation of said electric motor, and electrical interlock means operatively interposed between said means for supplying electric power and said throttling means to provide automatic deenergization of said electric motor with respect to said means for supplying electric power if said electric motor does not operate so that said rotatable member is driven at least momentarily at each of said successively increased speeds.
Claim 13
Dependent Claim
112 words
An electrically powered apparatus having a rotatable member capable of being driven at a plurality of successively increasing speeds from a minimum speed to a maximum speed, said apparatus comprising an electric motor, means for supplying electric power to said electric motor, throttling means for controlling the speed of operation of said electric motor, and electrical interlock means operatively interposed between said means for supplying electric power and said throttling means to provide automatic deenergization of said electric motor with respect to said means for supplying electric power if said electric motor does not operate so that said rotatable member is driven at least momentarily at each of said successively increased speeds.
Claim 14
Dependent Claim
34 words
The electrically powered apparatus of claim 11 further characterized in that said electrically powered apparatus is an electrically powered vehicle and that said rotatable member constitutes a drive member operable by said electric motor.
Claim 15
Dependent Claim
152 words
The electrically powered apparatus of claim 11 further characterized in that a resistive element is optionally operatively connected across said electric motor, said means for supplying electric power comprises first and second power sources, and said throttling mechanism includes An actuating member movable through a plurality of successive power regulating positions to enable said motor to operate at a plurality of speeds in said successively increased speeds when said actuating member is shifted through said plurality of power regulating positions, said actuating member being shiftable to a first power regulating position permitting operative connection of said first and second power sources in parallel with respect to said electric motor and shunted with said resistive element, and said actuating member being shiftable to a second power regulating position permitting operative connection of said first and second power sources in parallel with respect to said electric motor and without shunting by said resistive element.
Claim 16
Dependent Claim
216 words
The electrically powered apparatus of claim 11 further characterized in that a resistive element is optionally operatively connected across said electric motor, said means for supplying electric power comprises first and second power sources, and said throttling mechanism includes an actuating member movable through a plurality of successive power regulating positions to enable said motor to operate at a plurality of speeds in said successively increased speeds when said actuating member is shifted through said plurality of power regulating positions, said actuating member being shiftable to a first power regulating position permitting operative connection of said first and second power sources in parallel with respect to said electric motor and shunted with said resistive element, said actuating member being shiftable to a second power regulating position permitting operative connection of said first and second power sources in parallel with respect to said electric motor and without shunting by said resistive element, said actuating member being shiftable to a third power regulating position permitting operative connection of said first and second power sources in series with respect to said electric motor and shunted with said resistive element, and said actuating member being shiftable to a fourth power regulating position permitting operative connection of said first and second power sources in series without shunting by said resistive element.
Claim 17
Independent Claim
184 words
The method of controlling an electrically powered apparatus having a rotatable member capable of being driven at a plurality of successively increased speeds by means of an electric motor powered from first and second sources of electrical power and where a shunting element is optionally connectable with respect to said electric motor, said method comprising maintaining deenergization of said motor to prevent rotation of said rotatable member in a neutral condition, connecting said first and second electrical power sources in parallel with respect to said motor and with said shunting element operatively shunted across said motor at a first of said successively increased speeds, connecting said first and second electrical power sources in parallel with respect to said motor and without shunting said shunting element across said motor at a second of said successively increased speeds, and automatically deenergizing said motor with respect to said first and second sources of electrical power if said motor is powered to rotate said rotatable member at said second speed if said motor is not powered to rotate said rotatable member at least momentarily at said first speed.
Claim 18
Independent Claim
184 words
The method of controlling an electrically powered apparatus having a rotatable member capable of being driven at a plurality of successively increased speeds by means of an electric motor powered from first and second sources of electrical power and where a shunting element is optionally connectable with respect to said electric motor, said method comprising maintaining deenergization of said motor to prevent rotation of said rotatable member in a neutral condition, connecting said first and second electrical power sources in parallel with respect to said motor and with said shunting element operatively shunted across said motor at a first of said successively increased speeds, connecting said first and second electrical power sources in parallel with respect to said motor and without shunting said shunting element across said motor at a second of said successively increased speeds, and automatically deenergizing said motor with respect to said first and second sources of electrical power if said motor is powered to rotate said rotatable member at said second speed if said motor is not powered to rotate said rotatable member at least momentarily at said first speed.
Claim 19
Dependent Claim
254 words
The method of controlling an electrically powered apparatus of claim 15 further characterized in that said method comprises a rotatable member capable of being driven at a plurality of successively increased speeds by means of electric motor powered from first and second sources of electrical power and where a shunting element is optionally connectable with respect to said electric motor, said method comprising maintaining deenergization of said motor to prevent rotation of said rotatable member in a neutral condition, connecting said first and second electrical power sources in parallel with respect to Said motor and with said shunting element operatively shunted across said motor at a first of said successively increased speeds, connecting said first and second electrical power sources in parallel with respect to said motor and without shunting said shunting element across said motor at a second of said successively increased speeds, connecting said first and second electrical power sources in series with respect to said motor and with said shunting element operatively shunted across said motor at a third of said successively increased speeds, connecting said first and second electrical power sources in series with respect to said motor and without shunting said shunting element across said motor at a fourth of said successively increased speeds, and automatically deenergizing said motor with respect to said third and fourth sources of electrical power if said motor is powered to rotate said rotatable member at any speed without at least passing momentarily through any preceeding speed in said plurality of successively increased speeds.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |