US3234512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keying method and apparatus
Assignee: MONROE INTERNATIONAL CORP
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Filing: 1961-03-09
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Granted: 1966-02-08
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Expires: 1981-03-09
Abstract
No abstract record available.
Inventors
- 👤 William H Burkhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:27
CPC Classifications
G; G06; G06V; G06V30/00; G06V30/10; G06V30/22; G06V30/224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A TRANSLATING DEVICE FOR TRANSLATING THE INTERRUPTION OF AT LEAST ONE LIGHT BEAM INTO AT LEAST ONE ELECTRICAL SIGNAL COMPRISING: A FRAME; OMNIDIRECTIONAL LIGHT SOURCE MEANS CONNECTED TO AND PEPENDICULAR TO SAID FRAME; A PLURALITY OF PHOTOELECTRIC MEANS CONNECTED TO SAID FRAME AND PARALLEL WITH SAID LIGHT SOURCE MEANS; SAID PHOTOELECTRIC MEANS, EACH ARRANGED TO RECEIVE LIGHT FROM SAID LIGHT SOURCE MEANS AND THEREBY DESCRIBE A PATTERN OF LIGHT BEAMS; A PLURALITY OF DETECTION MEANS, ONE FOR EACH OF SAID PLURALITY OF PHOTOELECTRIC MEANS AND COUPLED TO ITS ASSOCIATED PHOTOELECTRIC MEANS TO DETECT THE INTERRUPTION OF THE LIGHT BEAM STRIKING ITS ASSOCIATED PHOTOELECTRIC MEANS DUE TO THE PRESENCE OF AN OBJECT BETWEEN SAID LIGHT SOURCE MEANS AND SAID ASSOCIATED PHOTOELECTRIC MEANS; AND OUTPUT MEANS COUPLED TO ALL OF SAID DETECTION MEANS TO PROVIDE AT LEAST ONE ELECTRIC SIGNAL INDICATIVE THE LIGHT BEAMS IN THE PATTERN INTERRUPTED.
Claim 2
Dependent Claim
146 words
A TRANSLATING DEVICE FOR TRANSLATING THE INTERRUPTION OF AT LEAST ONE LIGHT BEAM INTO AT LEAST ONE ELECTRICAL SIGNAL COMPRISING: A FRAME; OMNIDIRECTIONAL LIGHT SOURCE MEANS CONNECTED TO AND PEPENDICULAR TO SAID FRAME; A PLURALITY OF PHOTOELECTRIC MEANS CONNECTED TO SAID FRAME AND PARALLEL WITH SAID LIGHT SOURCE MEANS; SAID PHOTOELECTRIC MEANS, EACH ARRANGED TO RECEIVE LIGHT FROM SAID LIGHT SOURCE MEANS AND THEREBY DESCRIBE A PATTERN OF LIGHT BEAMS; A PLURALITY OF DETECTION MEANS, ONE FOR EACH OF SAID PLURALITY OF PHOTOELECTRIC MEANS AND COUPLED TO ITS ASSOCIATED PHOTOELECTRIC MEANS TO DETECT THE INTERRUPTION OF THE LIGHT BEAM STRIKING ITS ASSOCIATED PHOTOELECTRIC MEANS DUE TO THE PRESENCE OF AN OBJECT BETWEEN SAID LIGHT SOURCE MEANS AND SAID ASSOCIATED PHOTOELECTRIC MEANS; AND OUTPUT MEANS COUPLED TO ALL OF SAID DETECTION MEANS TO PROVIDE AT LEAST ONE ELECTRIC SIGNAL INDICATIVE THE LIGHT BEAMS IN THE PATTERN INTERRUPTED.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |