Patent US3100299A successfully refreshed from Google Patents.
US3100299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog to digital code converter
Assignee: Individual
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Filing: 1961-06-19
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Granted: 1963-08-06
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Theodore W Congdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:55
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
366 words
AN ANALOG TO DIGITAL CODE CONVERTER COMPRISING A ROTATABLE SHAFT, A CODED DISC ATTACHED TO SAID ROTATABLE SHAFT, SAID CODED DISC HAVING A PLURALITY OF CODE TRACKS OF HILLS AND VALLEYS, EACH OF SAID CODE TRACKS BEING OPERABLY CONNECTED TO A SEPARATE DIFFERENTIAL TRANSFORMER, ADJUSTABLE SUPPORT MEANS FOR SAID DIFFERENTIAL TRANSFORMERS, SAID DIFFERENTIAL TRANSFORMERS INCLUDING A REFERENCE INPUT VOLTAGE, OUTPUT TERMINALS, WINDINGS HAVING AN ELECTRICAL CENTERLINE, AND A VARIABLE CORE MEANS, SAID ADJUSTABLE SUPPORT MEANS INCLUDING A SUPPORT BRACKET HAVING AT LEAST ONE APERTURE THERETHROUGH, SAID APERTURE INCLUDING A FIRST PORTION HAVING A SMALLER DIAMETER THAN A SECOND PORTION, SAID SECOND PORTION HAVING A THREADED PORTION AT THE SURFACE OPENING OF SAID SECOND PORTION, SAID ADJUSTABLE SUPPORT MEANS FURTHER INCLUDING A GUIDE BEARING AT THE BASE OF SAID SECOND PORTION HAVING AN OUTER DIAMETER SMALLER THAN SAID SECOND PORTION AND AN INTERNAL DIAMETER SMALLER THAN SAID FIRST PORTION FOR THE RECIPROCATION OF SAID VARIABLE CORE MEANS, A FIRST COMPRESSIBLE SPRING BETWEEN SAID FIRST GUIDE BEARING AND SAID THREADED PORTION, DIFFERENTIAL TRANSFORMER WINDINGS BETWEEN SAID FIRST COMPRESSIBLE SPRING AND SAID THREADED PORTION, A SECOND GUIDE BEARING BETWEEN SAID DIFFERENTIAL TRANSFORMER WINDINGS AND SAID THREADED PORTION FOR GUIDING THE RECIPROCATION OF SAID VARIABLE CORE MEANS, AND AN ADJUSTING SCREW THREADED INTO SAID THREADED PORTION FOR ADJUSTING THE POSITION OF SAID DIFFERENTIAL TRANSFORMER AGAINST SAID FIRST COMPRESIBLE SPRING, SAID VARIABLE CORE MEANS INCLUDING AN IRON SLUG, A FIRST SHAFT PORTION CONNECTED AT ONE END TO ONE SIDE OF SAID IRON SLUG AND AT ITS OTHER END TO A SECOND COMPRESSIBLE SPRING, A CAVITY INTERNAL OF SAID ADJUSTING SCREW FOR HOLDING SAID SECOND COMPRESSIBLE SPRING, A SECOND SHAFT PORTION CONNECTED AT ONE END TO A SECOND SIDE OF SAID IRON SLUG AND AT ITS OTHER END TO A WHEEL HELD UNDER PRESSURE OF SAID SECOND COMPRESSIBLE SPRING IN ONE OF SAID ROTATING CODE TRACKS FOR TRAVEL OVER SAID HILLS AND VALLEYS OF SAID CODE TRACKS WHEREBY SAID FIRST SHAFT PORTION RECIPROCATES THROUGH SAID SECOND GUIDE BEARING AND SAID SECOND SHAFT PORTION RECIPROCATES THROUGH SAID FIRST GUIDE BEARING TO THEREBY RECIPROCATE SAID IRON SLUG OVER SAID ELECTRICAL CENTERLINE AND DERIVE AN OUTPUT AT SAID OUTPUT TERMINALS REPRESENTATIVE OF A DIGITAL CODE.
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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |