US3177684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary power transmitting device
Assignee: Kaman Aircraft Corp
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Filing: 1963-02-28
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Granted: 1965-04-13
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert B Bossler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:47
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/72; B; B64; B64C; B64C27/00; B64C27/04; B64C27/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A ROTARY POWER TRANSMITTING DEVICE COMPRISING TWO HELICAL MEMBERS ARRANGED ABOUT A COMMON CENTRAL AXIS, SAID HELICAL MEMBERS BEING WOUND IN THE SAME DIRECTION ABOUT SAID CENTRAL AXIS AND HAVING THE SAME AXIAL LEAD PER CONVOLUTION, EACH OF SAID HELICAL MEMBERS BEING COMPRISED OF A PLURALITY OF RIGID STRAIGHT LINE SEGMENTS EACH CAPABLE OF REACTING BOTH TENSION AND COMPRESSION LOADS APPLIED BETWEEN ITS ENDS, EACH OF SAID SEGMENTS HAVING A JOINT WITH THE NEXT ADJACENT SEGMENT AND EACH OF SAID JOINTS BEING LOCATED AT THE SAME LOCATION ALONG SAID CENTRAL AXIS AS THE CORRESPONDING JOINT OF THE OTHER OF SAID HELICAL MEMBERS, AND MEANS CONNECTED WITH SAID
Claim 2
Dependent Claim
107 words
A ROTARY POWER TRANSMITTING DEVICE COMPRISING TWO HELICAL MEMBERS ARRANGED ABOUT A COMMON CENTRAL AXIS, SAID HELICAL MEMBERS BEING WOUND IN THE SAME DIRECTION ABOUT SAID CENTRAL AXIS AND HAVING THE SAME AXIAL LEAD PER CONVOLUTION, EACH OF SAID HELICAL MEMBERS BEING COMPRISED OF A PLURALITY OF RIGID STRAIGHT LINE SEGMENTS EACH CAPABLE OF REACTING BOTH TENSION AND COMPRESSION LOADS APPLIED BETWEEN ITS ENDS, EACH OF SAID SEGMENTS HAVING A JOINT WITH THE NEXT ADJACENT SEGMENT AND EACH OF SAID JOINTS BEING LOCATED AT THE SAME LOCATION ALONG SAID CENTRAL AXIS AS THE CORRESPONDING JOINT OF THE OTHER OF SAID HELICAL MEMBERS, AND MEANS CONNECTED WITH SAID
References Cited (Backward Citations)
DE238323C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |