US3926072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planetary differential transmission
Assignee: NORTHERN EELECTRIC Co LIM
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Filing: 1974-10-24
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Granted: 1975-12-16
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Expires: 1994-10-24
Abstract
Abstract A drive mechanism for a cable stranding machine having a rotatable take-up reel and a flyer rotatable concentrically about the reel, in which separate drive shafts connectable with the reel and the flyer are coaxial and coupled by a differential transmission driven from a single power source. Variations in the relative rotations of the drive shafts are effected by engaging the transfer gears of the transmission with an auxiliary drive.
Inventors
- 👤 Walter Lorne Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:29
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0806; F16H37/0826; D; D07; D07B; D07B3/00; D07B3/08; D07B3/085; D07B7/00; D07B7/02; D07B7/10; F16H7/00; F16H7/24; D07B2207/00; D07B2207/40; D07B2207/409; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084; Y10T74/19126
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
A drive mechanism for a cable stranding machine having a rotatable take-up reel and a flyer rotatable concentrically about the reel, comprising: A first drive shaft connectable with the reel; A second drive shaft connectable with the flyer and coaxial with the first drive shaft; differential transmission means coupling the first and second drive shafts, the transmission means comprising a housing journally mounted on said first and second drive shafts and gear means interengaging said shafts; first drive means rotating the housing; and second drive means engaging the gear means whereby the relative rotation of the first and second drive shafts is variably controllable.
Claim 2
Dependent Claim
104 words
A drive mechanism for a cable stranding machine having a rotatable take-up reel and a flyer rotatable concentrically about the reel, comprising: A first drive shaft connectable with the reel; A second drive shaft connectable with the flyer and coaxial with the first drive shaft; differential transmission means coupling the first and second drive shafts, the transmission means comprising a housing journally mounted on said first and second drive shafts and gear means interengaging said shafts; first drive means rotating the housing; and second drive means engaging the gear means whereby the relative rotation of the first and second drive shafts is variably controllable.
Claim 3
Dependent Claim
51 words
A drive mechanism as claimed in claim 1 in which the gear means comprises a first gear keyed on the first drive shaft, a second gear keyed on the second drive shaft, and a plurality of transfer gears journally mounted on the housing and meshing with said first and second gears.
Claim 4
Dependent Claim
38 words
A drive mechanism as claimed in claim 2 in which the second drive means includes a third drive shaft having a third gear keyed thereon within the housing and meshing with at least one of the transfer gears.
Claim 5
Dependent Claim
24 words
A drive mechanism as claimed in claim 3 in which the first drive shaft is tubular and the third drive shaft extends coaxially therethrough.
Claim 6
Dependent Claim
120 words
A drive mechanism as claimed in claim 1 in which the gear means comprises: a first sun gear keyed on the first drum shaft; a second sun gear keyed on the second drive shaft; a plurality of transfer gears journally mounted on the housing, said transfer gears comprising a first planetary gear keyed on a first bearing shaft journally mounted on the housing and meshing with the first sun gear, a first transfer gear keyed on the first bearing shaft, a second transfer gear keyed on a second bearing shaft journally mounted on the housing and meshing with the first transfer gear, and a second planetary gear keyed on the second bearing shaft and meshing with the second sun gear.
Claim 7
Dependent Claim
47 words
A drive mechanism as claimed in claim 5 in which the second drive means includes a third drive shaft having a third sun gear keyed thereon within the housing, the second bearing shaft having a third transfer gear keyed thereon and meshing with the third sun gear.
Claim 8
Dependent Claim
24 words
A drive mechanism as claimed in claim 6 in which the first drive shaft is tubular and the third drive shaft extends coaxially therethrough.
Claim 9
Dependent Claim
67 words
A drive mechanism as claimed in claim 5 in which three of said first bearing shafts are journally mounted on the housing, each of said first bearing shaft carrying a first planetary gear and a first transfer gear, and three of said second bearing shafts are journally mounted on the housing, each of said second bearing shafts carrying a second transfer gear and a second planetary gear.
Claim 10
Dependent Claim
64 words
A drive mechanism as claimed in claim 6 in which the first drive shaft is tubular and the second drive means includes a third drive shaft extending coaxially through the first drive shaft, a third sun gear keyed on the third drive shaft with the housing, each second bearing shaft having a third transfer gear keyed thereon and meshing with the third sun gear.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |