US3233344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for teaching morse code telegraphy
Assignee: Individual
•
Filing: 1964-02-06
•
Granted: 1966-02-08
•
Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 James L Hartley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:56
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A DEVICE FOR REPEATEDLY PRODUCING A MORSE CODE TELEGRAPH SIGNAL, A ROTATIVELY DRIVEN CONTACT ARM HAVING THEREON A CONTACT SHOE MOVABLE IN A CIRCULAR PATH BY ROTATION OF SAID ARM; A CONTACT PLATE SUPPORTED ADJACENT THE PATH OF MOVEMENT OF SAID CONTACT SHOE AND POSITIONED SO THAT SAID SHOE WILL BE MOVED ACROSS SAID CONTACT PLATE AT EACH REVOLUTION OF SAID CONTACT ARM; AND A THIN FLAT CODE PLATE OF INSULATING MATERIAL POSITIONED BETWEEN SAID CONTACT PLATE AND SAID CONTACT ARM AND HAVING THEREIN SETS OF CODE PERFORATIONS, EACH SET REPRESENTING A MORSE CODE CHARACTER AND EACH SET BEING ADAPTED TO BE POSITIONED IN THE PATH OF MOVEMENT OF SAID CONTACT SHOE THEREBY PROVIDING FOR ELECTRICAL CONTACT OF SAID CONTACT SHOE WITH SAID CONTACT PLATE THROUGH EACH PERFORATION OF EACH SET EACH TIME SAID SHOE PASSES ACROSS SAID CONTACT PLATE.
Claim 2
Dependent Claim
141 words
IN A DEVICE FOR REPEATEDLY PRODUCING A MORSE CODE TELEGRAPH SIGNAL, A ROTATIVELY DRIVEN CONTACT ARM HAVING THEREON A CONTACT SHOE MOVABLE IN A CIRCULAR PATH BY ROTATION OF SAID ARM; A CONTACT PLATE SUPPORTED ADJACENT THE PATH OF MOVEMENT OF SAID CONTACT SHOE AND POSITIONED SO THAT SAID SHOE WILL BE MOVED ACROSS SAID CONTACT PLATE AT EACH REVOLUTION OF SAID CONTACT ARM; AND A THIN FLAT CODE PLATE OF INSULATING MATERIAL POSITIONED BETWEEN SAID CONTACT PLATE AND SAID CONTACT ARM AND HAVING THEREIN SETS OF CODE PERFORATIONS, EACH SET REPRESENTING A MORSE CODE CHARACTER AND EACH SET BEING ADAPTED TO BE POSITIONED IN THE PATH OF MOVEMENT OF SAID CONTACT SHOE THEREBY PROVIDING FOR ELECTRICAL CONTACT OF SAID CONTACT SHOE WITH SAID CONTACT PLATE THROUGH EACH PERFORATION OF EACH SET EACH TIME SAID SHOE PASSES ACROSS SAID CONTACT PLATE.
References Cited (Backward Citations)
US2954437A
Cited
US2947090A
Cited
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 |