Patent US3238524A successfully refreshed from Google Patents.
US3238524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In line brushes for drum type encoders for true "v" scan application for true binary code
Assignee: General Precision Inc
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Filing: 1962-12-21
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Granted: 1966-03-01
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Expires: 1982-12-21
Abstract
No abstract record available.
Inventors
- 👤 Oddo Ralph Rocco
- 👤 Lapp George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:31
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A BINARY ENCODER, A CYLINDRICAL DRUM, BINARY CODE TRACKS ENCIRCLING SAID DRUM IN AXIALLY SPACED RELATION, A FIRST SUBSTANTIALLY STRAIGHT LINE OF BRUSHES EXTENDING ACROSS SAID CODE TRACKS AND MAKING SLIDING ELECTRICAL CONTACT SEVERALLY WITH THE TRACKS MORE SIGNIFICENT THAN THE LEAST SIGNIFICANT TRACK, A SECOND SUBSTANTIALLY STRAIGHT LINE OF BRUSHES EXTENDING ACROSS SAID CODE TRACKS AND MAKING SLIDING ELECTRICAL CONTACT SEVERALLY WITH THE TRACKS MORE SIGNIFICANT THAN THE LEAST SIGNIFICANT TRACKS, SAID FIRST AND SECOND LINES OF BRUSHES BEING ANGULARLY DISPLACED FROM ONE ANOTHER THROGUH AN ANGLE EQUAL TO THE ANGLE DEFINED BY
Claim 2
Dependent Claim
95 words
IN A BINARY ENCODER, A CYLINDRICAL DRUM, BINARY CODE TRACKS ENCIRCLING SAID DRUM IN AXIALLY SPACED RELATION, A FIRST SUBSTANTIALLY STRAIGHT LINE OF BRUSHES EXTENDING ACROSS SAID CODE TRACKS AND MAKING SLIDING ELECTRICAL CONTACT SEVERALLY WITH THE TRACKS MORE SIGNIFICENT THAN THE LEAST SIGNIFICANT TRACK, A SECOND SUBSTANTIALLY STRAIGHT LINE OF BRUSHES EXTENDING ACROSS SAID CODE TRACKS AND MAKING SLIDING ELECTRICAL CONTACT SEVERALLY WITH THE TRACKS MORE SIGNIFICANT THAN THE LEAST SIGNIFICANT TRACKS, SAID FIRST AND SECOND LINES OF BRUSHES BEING ANGULARLY DISPLACED FROM ONE ANOTHER THROGUH AN ANGLE EQUAL TO THE ANGLE DEFINED BY
References Cited (Backward Citations)
US2958861A
Cited
US3130399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |