Patent US3683246A successfully refreshed from Google Patents.
US3683246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single motor drive of forming winder collet
Assignee: Manufacturers Hanover Trust Co
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Filing: 1971-06-09
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Granted: 1972-08-08
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Expires: 1991-06-09
Abstract
Abstract Single motor drive of a rotatable, relatively massive collet in a forming winder which successively cross winds packages of a strand or yarn on the rotating collet. A high-powered motor which is energized by relatively high voltage AC rapidly rotates the collet up to a maximum predetermined speed during an initial period of accelerating action. Then relatively lower voltage AC is substituted for the high voltage AC power to continue the drive of the motor and the collet from the latter during a following period of yarn winding action. The circuitry which supplies the lower voltage AC power includes a relatively economical, lower voltage output, variable frequency AC inverter that includes infinitely variable change speed means to maintain the peripheral speed of the building package substantially uniform. Control circuitry is provided to effect this alternate shift from high power to low power drive of the single motor between the periods of accelerating action and the winding action of the operational cycle. Preferably it includes relay means to hold this control circuitry closed during the operational cycle and simultaneously to hold open a braking circuit that imposes braking action upon the driving motor as power to the latter is cut off at the termination of this cycle.
Inventors
- 👤 Saul Warshaw
- 👤 Arnold J Eisenberg
- 👤 Winton Loveland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:38
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/38; B65H59/384; B65H59/385; B65H54/00; B65H54/70; B65H54/74; H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/098; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
324 words
A single motor drive of a relatively massive rotatable collet in a strand or yarn forming winder comprising 1. a relatively high-powered AC electric motor drivably connected to said collet for accelerating the latter up to a predetermined maximum speed in a relatively short period of time and having electrical input terminals; 2. a first electrical energizing circuit connectable to a relatively high voltage AC power source and connected to said input terminals for initial supply of such power to said motor, said circuit containing a relay type of motor starter including a magnetic coil and a first set of normally open switch means manipulated by said coil for selectively closing and opening this circuit periodically to supply the relatively high voltage AC power to said motor during an initial speed accelerating action period; 3. a second electrical energizing circuit connectable to a relatively lower voltage AC power source and containing a lower voltage output, variable frequency AC inverter that includes infinitely variable change speed means, with said inverter having AC output terminals connected to said motor input terminals through a second set of normally open switch means manipulatable by a second relay magnetic coil for selective supply to said motor through said second set of switch means of lower voltage AC power during a following period of strand or yarn winding action after attainment of the accelerated speed limit, the successive initial speed accelerating action and following winding action together constituting an operational accelerating and winding cycle; and 4. speed sensing means operated by said motor to dictate opening of said motor starter switch means for discontinuing supply of the high voltage AC power to said motor as the latter increases the speed of the driven collet to this speed limit, and simultaneously to dictate closure of said second relay switch means for supply of the lower voltage AC power to said motor during the winding action with progressive deceleration of said collet.
Claim 2
Dependent Claim
324 words
A single motor drive of a relatively massive rotatable collet in a strand or yarn forming winder comprising 1. a relatively high-powered AC electric motor drivably connected to said collet for accelerating the latter up to a predetermined maximum speed in a relatively short period of time and having electrical input terminals; 2. a first electrical energizing circuit connectable to a relatively high voltage AC power source and connected to said input terminals for initial supply of such power to said motor, said circuit containing a relay type of motor starter including a magnetic coil and a first set of normally open switch means manipulated by said coil for selectively closing and opening this circuit periodically to supply the relatively high voltage AC power to said motor during an initial speed accelerating action period; 3. a second electrical energizing circuit connectable to a relatively lower voltage AC power source and containing a lower voltage output, variable frequency AC inverter that includes infinitely variable change speed means, with said inverter having AC output terminals connected to said motor input terminals through a second set of normally open switch means manipulatable by a second relay magnetic coil for selective supply to said motor through said second set of switch means of lower voltage AC power during a following period of strand or yarn winding action after attainment of the accelerated speed limit, the successive initial speed accelerating action and following winding action together constituting an operational accelerating and winding cycle; and 4. speed sensing means operated by said motor to dictate opening of said motor starter switch means for discontinuing supply of the high voltage AC power to said motor as the latter increases the speed of the driven collet to this speed limit, and simultaneously to dictate closure of said second relay switch means for supply of the lower voltage AC power to said motor during the winding action with progressive deceleration of said collet.
Claim 3
Dependent Claim
81 words
a first electrical energizing circuit connectable to a relatively high voltage AC power source and connected to said input terminals for initial supply of such power to said motor, said circuit containing a relay type of motor starter including a magnetic coil and a first set of normally open switch means manipulated by said coil for selectively closing and opening this circuit periodically to supply the relatively high voltage AC power to said motor during an initial speed accelerating action period;
Claim 4
Dependent Claim
81 words
a first electrical energizing circuit connectable to a relatively high voltage AC power source and connected to said input terminals for initial supply of such power to said motor, said circuit containing a relay type of motor starter including a magnetic coil and a first set of normally open switch means manipulated by said coil for selectively closing and opening this circuit periodically to supply the relatively high voltage AC power to said motor during an initial speed accelerating action period;
Claim 5
Dependent Claim
42 words
The apparatus as defined in claim 1 characterized by said speed sensing means including a signal generator which is driven by said motor and feeds to said inverter current pulses that are directly related in frequency to the rpm of said motor.
Claim 6
Dependent Claim
40 words
The apparatus as defined in claim 2 characterized by said speed sensing means including a current pulse frequency responsive means associated with said inverter which effects opening of said motor starter switch means upon attainment of the accelerated speed limit.
Claim 7
Dependent Claim
114 words
a second electrical energizing circuit connectable to a relatively lower voltage AC power source and containing a lower voltage output, variable frequency AC inverter that includes infinitely variable change speed means, with said inverter having AC output terminals connected to said motor input terminals through a second set of normally open switch means manipulatable by a second relay magnetic coil for selective supply to said motor through said second set of switch means of lower voltage AC power during a following period of strand or yarn winding action after attainment of the accelerated speed limit, the successive initial speed accelerating action and following winding action together constituting an operational accelerating and winding cycle; and
Claim 8
Dependent Claim
114 words
a second electrical energizing circuit connectable to a relatively lower voltage AC power source and containing a lower voltage output, variable frequency AC inverter that includes infinitely variable change speed means, with said inverter having AC output terminals connected to said motor input terminals through a second set of normally open switch means manipulatable by a second relay magnetic coil for selective supply to said motor through said second set of switch means of lower voltage AC power during a following period of strand or yarn winding action after attainment of the accelerated speed limit, the successive initial speed accelerating action and following winding action together constituting an operational accelerating and winding cycle; and
Claim 9
Dependent Claim
74 words
speed sensing means operated by said motor to dictate opening of said motor starter switch means for discontinuing supply of the high voltage AC power to said motor as the latter increases the speed of the driven collet to this speed limit, and simultaneously to dictate closure of said second relay switch means for supply of the lower voltage AC power to said motor during the winding action with progressive deceleration of said collet.
Claim 10
Dependent Claim
74 words
speed sensing means operated by said motor to dictate opening of said motor starter switch means for discontinuing supply of the high voltage AC power to said motor as the latter increases the speed of the driven collet to this speed limit, and simultaneously to dictate closure of said second relay switch means for supply of the lower voltage AC power to said motor during the winding action with progressive deceleration of said collet.
Claim 11
Dependent Claim
33 words
The apparatus as defined in claim 3 characterized by relay means in said current pulse frequency responsive means which effects the opening of said motor starter switch means at the critical speed limit.
Claim 12
Dependent Claim
96 words
The apparatus as defined in claim 4 characterized by the provision of control energizing circuitry including parallel branches with a first one of said branches containing said motor starter magnetic coil in series with a normally closed switch and a second one of said branches containing said second relay magnetic coil in series with a normally open switch, said relay means in said current pulse frequency responsive means being a signal relay which causes said first branch normally closed switch to open and said second branch normally open switch to close at the critical speed limit.
Claim 13
Dependent Claim
53 words
The apparatus as defined in claim 5 characterized by means coupling together said first branch normally closed switch and said second branch normally open switch for simultaneous manipulation, said control energizing circuitry embodying manipulating relay means which responds to said signal relay to effect the respective opening and closing of said coupled switches.
Claim 14
Dependent Claim
51 words
The apparatus as defined in claim 6 characterized by said signal relay having a normally open switch which is in series with the magnetic coil of said manipulatiNg relay means whereby closure of said signal relay switch upon attainment of the critical speed limit causes the manipulation of said coupled switches.
Claim 15
Dependent Claim
141 words
The apparatus as defined in claim 1 characterized by the provision of an electrical braking circuit including a braking coil in said motor, and switch means connecting this braking circuit to the lower voltage AC power source; control energizing circuitry connected to said second electrical energizing circuit and containing the motor starter coil, the second relay coil and a brake relay coil with the latter controlling operation of said braking circuit switch means to hold open the latter throughout the operational accelerating and winding cycle and then to close this braking switch means upon termination of supply of AC power to said motor through said second circuit; and a control circuitry switch closable by said brake relay coil at the beginning of the operational cycle and openable thereby at the termination of the latter as said braking switch means is closed.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |