Patent US3322240A successfully refreshed from Google Patents.
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US3322240A Expired / Lapsed US ⏱️ 0.0 years remaining

Disc brake for washing machine

Assignee: Duracell Inc USA
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Filing: 1965-03-19
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Granted: 1967-05-30
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Expires: 1985-03-19
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Abstract

No abstract record available.

Inventors

  • 👤 Gianni A Dotto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 16:06
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/102; H02K7/1021; H02K7/1023; D; D06; D06F; D06F39/00; F; F16; F16D; F16D55/00; F16D55/24; F16D55/26; F16D55/28; F16D55/30; F16D55/31; F16D59/00

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 235 words
IN A BRAKE FOR PREVENTING FURTHER ROTATIONAL DEPLACEMENT OF THE ROTOR OF AN ELECTRIC MOTOR WHEN SAID ELECTRIC MOTOR IS DE-ENERGIZED, A SHAFT FIXEDLY CONNECTED TO AND ROTATABLY DISPLACED BY SAID ROTOR, SAID SHAFT CARRYING A PIN, AN APERTURED DISC MEANS SLIDABLY INTERFITTING WITH SAID SHAFT AND SAID PIN, SAID DISC ROTATING WITH SAID SHAFT, SUP PORT MEANS INCLUDING A PAIR OF PLATES RETAINED IN SPACED PARALLEL RELATIONSHIP CARRIED BY SAID ELECTRIC MOTOR, SAID PLATES FORMING A CHANNEL THEREBETWEEN THROUGH WHICH A PORTION OF SAID DISC PASSES, FRICTION MEANS SEATED IN EACH OF SAID PLATES SO THAT SAID DISC IS POSITIONED THEREBETWEEN, ONE OF SAID FRICTION MEANS BEING DISPLACEABLE, THE OTHER OF SAID FRICTION MEANS BEING STATIONARY, SOLENOID MEANS CARRIED BY SAID ELECTRIC MOTOR AND ACTIVATED WHEN SAID ELECTRIC MOTOR IS DE-ENERGIZED, SAID SOLENOID MEANS INCLUDING A DISPLACEABLE MEANS, AND AN ACTUATOR MEANS HAVING ONE END CONNECTED TO SAID DISPLACEABLE MEANS AND HAVING ANOTHER END CONNECTED TO SAID SUPPORT MEANS, SAID ACTUATOR MEANS OVERLAYING SAID DISPLACEABLE FRICTION MEANS, DE-ENERGIZATION OF SAID ELECTRIC MOTOR CAUSING ACTIVATION OF SAID SOLENOID MEANS AND DISPLACEMENT OF SAID DISPLACEABLE MEANS, SAID DISPLACEABLE MEANS DISPLACING SAID ACTUATOR MEANS SO THAT SIAD ACTUATOR MEANS ENGAGES WITH AND DISPLACES SAID DISPLACEABLE FRICTION MEANS, DISPLACEMENT OF SAID DISPLACEABLE FRICTION MEANS CAUSING SAID DISC MEANS TO BE FRICTIONALLY ENGAGED BETWEEN SAID FRICTION MEANS THEREBY PREVENTING FURTHER ROTATIONAL DISPLACEMENT OF SAID ROTOR OF SAID ELECTRIC MOTOR.
Claim 2
Dependent Claim 235 words
IN A BRAKE FOR PREVENTING FURTHER ROTATIONAL DEPLACEMENT OF THE ROTOR OF AN ELECTRIC MOTOR WHEN SAID ELECTRIC MOTOR IS DE-ENERGIZED, A SHAFT FIXEDLY CONNECTED TO AND ROTATABLY DISPLACED BY SAID ROTOR, SAID SHAFT CARRYING A PIN, AN APERTURED DISC MEANS SLIDABLY INTERFITTING WITH SAID SHAFT AND SAID PIN, SAID DISC ROTATING WITH SAID SHAFT, SUP PORT MEANS INCLUDING A PAIR OF PLATES RETAINED IN SPACED PARALLEL RELATIONSHIP CARRIED BY SAID ELECTRIC MOTOR, SAID PLATES FORMING A CHANNEL THEREBETWEEN THROUGH WHICH A PORTION OF SAID DISC PASSES, FRICTION MEANS SEATED IN EACH OF SAID PLATES SO THAT SAID DISC IS POSITIONED THEREBETWEEN, ONE OF SAID FRICTION MEANS BEING DISPLACEABLE, THE OTHER OF SAID FRICTION MEANS BEING STATIONARY, SOLENOID MEANS CARRIED BY SAID ELECTRIC MOTOR AND ACTIVATED WHEN SAID ELECTRIC MOTOR IS DE-ENERGIZED, SAID SOLENOID MEANS INCLUDING A DISPLACEABLE MEANS, AND AN ACTUATOR MEANS HAVING ONE END CONNECTED TO SAID DISPLACEABLE MEANS AND HAVING ANOTHER END CONNECTED TO SAID SUPPORT MEANS, SAID ACTUATOR MEANS OVERLAYING SAID DISPLACEABLE FRICTION MEANS, DE-ENERGIZATION OF SAID ELECTRIC MOTOR CAUSING ACTIVATION OF SAID SOLENOID MEANS AND DISPLACEMENT OF SAID DISPLACEABLE MEANS, SAID DISPLACEABLE MEANS DISPLACING SAID ACTUATOR MEANS SO THAT SIAD ACTUATOR MEANS ENGAGES WITH AND DISPLACES SAID DISPLACEABLE FRICTION MEANS, DISPLACEMENT OF SAID DISPLACEABLE FRICTION MEANS CAUSING SAID DISC MEANS TO BE FRICTIONALLY ENGAGED BETWEEN SAID FRICTION MEANS THEREBY PREVENTING FURTHER ROTATIONAL DISPLACEMENT OF SAID ROTOR OF SAID ELECTRIC MOTOR.

References Cited (Backward Citations)

US2657772A Cited
US2785710A Cited
US2937722A Cited
US2974756A Cited
US3093213A Cited
US3115956A Cited
US3110365A Cited
US3233705A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-05-29 1970-11-28 1971-05-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-05-29 1974-11-28 1975-05-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-05-29 1978-11-28 1979-05-30 $7700.00 Window Closed / Lapsed

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