Patent US3094882A successfully refreshed from Google Patents.
US3094882A
Expired / Lapsed
US
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System for operating the motor in a dictating machine and the like
Assignee: Individual
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Filing: 1959-10-27
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Granted: 1963-06-25
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Expires: 1979-10-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:14
CPC Classifications
H; H02; H02P; H02P25/00; H02P25/02; H02P25/10; H02P25/14; G; G11; G11B; G11B19/00; G11B19/20; G11B19/26; G11B19/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A DICTATING MACHINE AND THE LIKE, A MACHINE HOUSING, A SMALL HIGH EFFICIENCY INDUCTION MOTOR MOUNTED IN SAID HOUSING TO DRIVE A RECORD CARRYING MECHANISM THEREIN, SAID MOTOR HAVING A NORMAL NO-LOAD SPEED AT RATED VOLTAGE OF NEARLY SYNCHRONOUS SPEED, DRIVE MEANS INCLUDING AN ELECTRIC SOLENOID TO DRIVINGLY ENGAGE SAID MOTOR WITH SAID MECHANISM, SAID MOTOR RUNNING UNDER NO-LOAD WHEN SAID DRIVE MEANS IS DISENGAGED, AN ELECTRIC CIRCUIT TO ENERGIZE SAID MOTOR, AN ELECTRIC SWITCH COUPLED TO SAID SOLENOID, SAID SWITCH BEING ACTUATED WHEN SAID DRIVE MEANS IS ENGAGED, AND IMPEDANCE MEANS IN SAID ELECTRIC CIRCUIT AND CONNECTED TO BE REMOVED FROM CIRCUIT BY SAID SWITCH WHEN SAID DRIVE MEANS IS ENGAGED, SAID IMPEDANCE MEANS WHEN IN CIRCUIT SERVING TO REDUCE ELECTRIC CURRENT TO SAID MOTOR AT NO-LOAD AND THEREBY ELIMINATE AUDIBLE MOTOR BEAT-NOTE NOISE.
Claim 2
Dependent Claim
136 words
IN A DICTATING MACHINE AND THE LIKE, A MACHINE HOUSING, A SMALL HIGH EFFICIENCY INDUCTION MOTOR MOUNTED IN SAID HOUSING TO DRIVE A RECORD CARRYING MECHANISM THEREIN, SAID MOTOR HAVING A NORMAL NO-LOAD SPEED AT RATED VOLTAGE OF NEARLY SYNCHRONOUS SPEED, DRIVE MEANS INCLUDING AN ELECTRIC SOLENOID TO DRIVINGLY ENGAGE SAID MOTOR WITH SAID MECHANISM, SAID MOTOR RUNNING UNDER NO-LOAD WHEN SAID DRIVE MEANS IS DISENGAGED, AN ELECTRIC CIRCUIT TO ENERGIZE SAID MOTOR, AN ELECTRIC SWITCH COUPLED TO SAID SOLENOID, SAID SWITCH BEING ACTUATED WHEN SAID DRIVE MEANS IS ENGAGED, AND IMPEDANCE MEANS IN SAID ELECTRIC CIRCUIT AND CONNECTED TO BE REMOVED FROM CIRCUIT BY SAID SWITCH WHEN SAID DRIVE MEANS IS ENGAGED, SAID IMPEDANCE MEANS WHEN IN CIRCUIT SERVING TO REDUCE ELECTRIC CURRENT TO SAID MOTOR AT NO-LOAD AND THEREBY ELIMINATE AUDIBLE MOTOR BEAT-NOTE NOISE.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |