Patent US4730482A successfully refreshed from Google Patents.
US3133451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple reduction gear unit
Assignee: Rexnord Industries LLC
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Filing: 1961-12-28
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Granted: 1964-05-19
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Expires: 1981-12-28
Abstract
No abstract record available.
Inventors
- 👤 Richard J Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:37
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/20; F16H1/22; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19628; Y10T74/19642; Y10T74/19647; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A MULTIPLE REDUCTION GEAR UNIT COMPRISING: AN INPUT SHAFT HAVING A PAIR OF DRIVING PINIONS; AN OUTPUT SHAFT PARALLEL TO SAID INPUT SHAFT AND SPACED HORIZONTALLY THEREFROM, SAID OUTPUT SHAFT BEING PROVIDED WITH A BULL GEAR; A PLURALITY OF INTERMEDIATE SHAFTS EACH PARALLEL TO SAID INPUT AND OUTPUT SHAFTS AND COMPRISING TWO SEPARATE GEAR TRAINS, SAID INTERMEDIATE SHAFTS EACH BEING PROVIDED WITH MESHING GEARS, EACH OF SAID GEAR TRAINS BEING ADAPTED TO BE DRIVEN BY ONE OF SAID PAIR OF DRIVING PINIONS AND TO DRIVE THE OUTPUT SHAFT BY MESHING ENGAGEMENT WITH THE BULL GEAR; AND A PAIR OF PARALLEL, VERTICAL BEARING WALLS EACH PROVIDING JOURNAL SUPPORT FOR EACH OF SAID INPUT SHAFT, SAID OUTPUT SHAFT AND SAID INTERMEDIATE SHAFTS, THE OUTPUT SHAFT AND THE INTERMEDIATE SHAFTS COMPRISING ONE OF SAID GEAR TRAINS BEING SUPPORTED BY SAID BEARING WALLS IN A LOWER HORIZONTAL PLANE, THE INTERMEDIATE SHAFTS COMPRISING THE OTHER OF SAID GEAR TRAINS BEING SUPPORTED BY SAID BEARING WALLS IN A HORIZONTAL PLANE ABOVE SAID LOWER PLANE, AND SAID INPUT SHAFT BEING SUPPORTED AT THE INPUT END OF SAID BEARING WALLS AT A LEVEL BETWEEN SAID HORIZONTAL PLANES.
Claim 2
Dependent Claim
189 words
A MULTIPLE REDUCTION GEAR UNIT COMPRISING: AN INPUT SHAFT HAVING A PAIR OF DRIVING PINIONS; AN OUTPUT SHAFT PARALLEL TO SAID INPUT SHAFT AND SPACED HORIZONTALLY THEREFROM, SAID OUTPUT SHAFT BEING PROVIDED WITH A BULL GEAR; A PLURALITY OF INTERMEDIATE SHAFTS EACH PARALLEL TO SAID INPUT AND OUTPUT SHAFTS AND COMPRISING TWO SEPARATE GEAR TRAINS, SAID INTERMEDIATE SHAFTS EACH BEING PROVIDED WITH MESHING GEARS, EACH OF SAID GEAR TRAINS BEING ADAPTED TO BE DRIVEN BY ONE OF SAID PAIR OF DRIVING PINIONS AND TO DRIVE THE OUTPUT SHAFT BY MESHING ENGAGEMENT WITH THE BULL GEAR; AND A PAIR OF PARALLEL, VERTICAL BEARING WALLS EACH PROVIDING JOURNAL SUPPORT FOR EACH OF SAID INPUT SHAFT, SAID OUTPUT SHAFT AND SAID INTERMEDIATE SHAFTS, THE OUTPUT SHAFT AND THE INTERMEDIATE SHAFTS COMPRISING ONE OF SAID GEAR TRAINS BEING SUPPORTED BY SAID BEARING WALLS IN A LOWER HORIZONTAL PLANE, THE INTERMEDIATE SHAFTS COMPRISING THE OTHER OF SAID GEAR TRAINS BEING SUPPORTED BY SAID BEARING WALLS IN A HORIZONTAL PLANE ABOVE SAID LOWER PLANE, AND SAID INPUT SHAFT BEING SUPPORTED AT THE INPUT END OF SAID BEARING WALLS AT A LEVEL BETWEEN SAID HORIZONTAL PLANES.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |