US3370220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand operated blasting generator
Assignee: Universal Match Corp
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Filing: 1967-06-09
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Granted: 1968-02-20
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Expires: 1987-06-09
Abstract
No abstract record available.
Inventors
- 👤 Byron J Douglass
- 👤 Kenneth E Bleich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:41
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/18; H02K7/1807; H02K7/1853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
300 words
A BLASTING MACHINE WHICH COMPRISES: A GENERATOR THAT HAS A ROTOR AND A STATOR AND THAT RESPONDS TO ROTATION OF SAID ROTOR TO GENERATE POWER, MANUALLY-OPERABLE MEANS TO ROTATE SAID ROTOR OF SAID GENERATOR AND THEREBY CAUSE SAID GENERATOR TO GENERATE POWER, A CAPACITOR THAT RECEIVES POWER GENERATED BY SAID GENERATOR AND THAT RESPONDS TO SAID POWER TO DEVELOP A CHARGE THEREIN AND A VOLTAGE THEREACROSS, A SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT THAT HAS A HIGH FORWARD DROP WHENEVER IT IS NON-CONDUCTIVE, THAT HAS A VERY LOW FORWARD DROP WHENEVER IT HAS BEEN RENDERED CONDUCTIVE, AND THAT HAS A LOW CUT-OFF LEVEL, AND OUTPUT TERMINALS FOR SAID BLASTING MACHINE, SAID SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT BEING CONNECTED BETWEEN ONE OF THE TERMINALS OF SAID CAPACITOR AND ONE OF SAID OUTPUT TERMINALS, SAID GENERATOR RESPONDING TO ROTATION OF SAID ROTOR THEREOF BY SAID MANUALLY-OPERABLE MEANS TO GENERATE POWER AND TO SUPPLY POWER TO SAID CAPACITOR, AND SAID CAPACITOR RESPONDING TO SAID POWER TO DEVELOP A CHARGE THEREIN AND A VOLTAGE THEREACROSS. SAID SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT INITIALLY BEING NON-CONDUCTIVE AND THEREBY ISOLATING SAID ONE OUTPUT TERMINAL FROM SAID ONE TERMINAL OF SAID CAPACITOR, AND CONTINUING TO ISOLATE SAID ONE OUTPUT TERMINAL FROM SAID ONE TERMINAL OF SAID CAPACITOR UNTIL THE VOLTAGE ACROSS SAID CAPACITOR ATTAINS A PREDETERMINED VALUE, SAID SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT THEREAFTER BECOMING CONDUCTIVE AND CONNECTING SAID ONE TERMINAL OF SAID CAPACITOR TO SAID ONE OUTPUT TERMINAL TO ENABLE SAID CAPACITOR TO SUPPLY POWER TO SAID OUTPUT TERMINALS, SAID SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT REMAINING CONDUCTIVE UNTIL THE FORWARD DROP THEREACROSS FALLS TO A LOW LEVEL, AND SAID SOLID-STATE SELECTIVELYCONDUCTIVE ELEMENT THEREBY CONTINUING TO CONNECT SAID ONE TERMINAL OF SAID CAPACITOR TO SAID OUTPUT TERMINAL, AND THUS CONTINUING TO ENABLE SAID CAPACITOR TO SUPPLY POWER TO SAID OUTPUT TERMINALS, UNTIL SAID CAPACITOR HAS BECOME SUBSTANTIALLY FULLY DISCHARGED,
Claim 2
Dependent Claim
300 words
A BLASTING MACHINE WHICH COMPRISES: A GENERATOR THAT HAS A ROTOR AND A STATOR AND THAT RESPONDS TO ROTATION OF SAID ROTOR TO GENERATE POWER, MANUALLY-OPERABLE MEANS TO ROTATE SAID ROTOR OF SAID GENERATOR AND THEREBY CAUSE SAID GENERATOR TO GENERATE POWER, A CAPACITOR THAT RECEIVES POWER GENERATED BY SAID GENERATOR AND THAT RESPONDS TO SAID POWER TO DEVELOP A CHARGE THEREIN AND A VOLTAGE THEREACROSS, A SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT THAT HAS A HIGH FORWARD DROP WHENEVER IT IS NON-CONDUCTIVE, THAT HAS A VERY LOW FORWARD DROP WHENEVER IT HAS BEEN RENDERED CONDUCTIVE, AND THAT HAS A LOW CUT-OFF LEVEL, AND OUTPUT TERMINALS FOR SAID BLASTING MACHINE, SAID SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT BEING CONNECTED BETWEEN ONE OF THE TERMINALS OF SAID CAPACITOR AND ONE OF SAID OUTPUT TERMINALS, SAID GENERATOR RESPONDING TO ROTATION OF SAID ROTOR THEREOF BY SAID MANUALLY-OPERABLE MEANS TO GENERATE POWER AND TO SUPPLY POWER TO SAID CAPACITOR, AND SAID CAPACITOR RESPONDING TO SAID POWER TO DEVELOP A CHARGE THEREIN AND A VOLTAGE THEREACROSS. SAID SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT INITIALLY BEING NON-CONDUCTIVE AND THEREBY ISOLATING SAID ONE OUTPUT TERMINAL FROM SAID ONE TERMINAL OF SAID CAPACITOR, AND CONTINUING TO ISOLATE SAID ONE OUTPUT TERMINAL FROM SAID ONE TERMINAL OF SAID CAPACITOR UNTIL THE VOLTAGE ACROSS SAID CAPACITOR ATTAINS A PREDETERMINED VALUE, SAID SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT THEREAFTER BECOMING CONDUCTIVE AND CONNECTING SAID ONE TERMINAL OF SAID CAPACITOR TO SAID ONE OUTPUT TERMINAL TO ENABLE SAID CAPACITOR TO SUPPLY POWER TO SAID OUTPUT TERMINALS, SAID SOLID-STATE SELECTIVELY-CONDUCTIVE ELEMENT REMAINING CONDUCTIVE UNTIL THE FORWARD DROP THEREACROSS FALLS TO A LOW LEVEL, AND SAID SOLID-STATE SELECTIVELYCONDUCTIVE ELEMENT THEREBY CONTINUING TO CONNECT SAID ONE TERMINAL OF SAID CAPACITOR TO SAID OUTPUT TERMINAL, AND THUS CONTINUING TO ENABLE SAID CAPACITOR TO SUPPLY POWER TO SAID OUTPUT TERMINALS, UNTIL SAID CAPACITOR HAS BECOME SUBSTANTIALLY FULLY DISCHARGED,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |