Patent US5980484A successfully refreshed from Google Patents.
US3333111A
Expired / Lapsed
US
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Pulse switching system
Assignee: Smith Meter Inc
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Filing: 1964-07-06
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Granted: 1967-07-25
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Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Tim H Houle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:03
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B67D7/22; B67D7/221; B67D7/222; H; H03; H03K; H03K21/00; H03K21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A PULSE ACTUATED SYSTEM, A PAIR OF OPPOSED CONTACTS, MEANS TO RAPIDLY MOVE THE CONTACTS INTO ENGAGEMENT, A MONOSTABLE MULTIVIBRATOR TRANSISTORS COUPLED BY DEMON EMITTER CONNECTED TRANSISTORS COUPLED BY DEGENERATIVE COUPLING MEANS TO PROVIDE AN OUTPUT SIGNAL OF A SELECTED DURATION, CIRCUIT MEANS CONNECTING SAID CONTACTS TO THE INPUT OF THE TRANSISTOR AND INCLUDING AN ELECTRICAL TIMING CIRCUIT TO ISOLATE THE CIRCUIT FROM TRANSIENT SIGNALS, AN OUTPUT LOAD, AND A DIRECT COUPLED EMITTER FOLLOWER HAVING AN INPUT CONNECTED TO THE OUTPUT OF THE MULTIVIBRATOR AND HAVING AN OUTPUT CONNECTED TO THE OUTPUT LOAD TO ENERGIZE THE LOAD FOR THE DURATION OF THE OUTPUT SIGNAL OF SAID MONOSTABLE MULTIVIBRATOR AND ESSENTIALLY INDEPENDENTLY OF THE PERIOD SUCH CONTACTS ARE ENGAGED.
Claim 2
Dependent Claim
119 words
IN A PULSE ACTUATED SYSTEM, A PAIR OF OPPOSED CONTACTS, MEANS TO RAPIDLY MOVE THE CONTACTS INTO ENGAGEMENT, A MONOSTABLE MULTIVIBRATOR TRANSISTORS COUPLED BY DEMON EMITTER CONNECTED TRANSISTORS COUPLED BY DEGENERATIVE COUPLING MEANS TO PROVIDE AN OUTPUT SIGNAL OF A SELECTED DURATION, CIRCUIT MEANS CONNECTING SAID CONTACTS TO THE INPUT OF THE TRANSISTOR AND INCLUDING AN ELECTRICAL TIMING CIRCUIT TO ISOLATE THE CIRCUIT FROM TRANSIENT SIGNALS, AN OUTPUT LOAD, AND A DIRECT COUPLED EMITTER FOLLOWER HAVING AN INPUT CONNECTED TO THE OUTPUT OF THE MULTIVIBRATOR AND HAVING AN OUTPUT CONNECTED TO THE OUTPUT LOAD TO ENERGIZE THE LOAD FOR THE DURATION OF THE OUTPUT SIGNAL OF SAID MONOSTABLE MULTIVIBRATOR AND ESSENTIALLY INDEPENDENTLY OF THE PERIOD SUCH CONTACTS ARE ENGAGED.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |