US3845670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twin drive system
Assignee: Individual
•
Filing: 1973-09-24
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Granted: 1974-11-05
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Expires: 1993-09-24
Abstract
Abstract A single powered small diameter sprocket wheel is provided and meshed with large diameter driven rings or wheels journaled for rotation about generally parallel axes and provided with circumferentially spaced generally radial outer peripheral rollers in a first form of the invention wherein the single drive sprocket is disposed between the driven rings or wheels and journaled for rotation about an axis extending generally radially of the axes of rotation of the driven rings or wheels. In a second form of the invention a single driven shaft is provided and drives a pair of coaxial sprocket wheels equipped with intermediate shafts and the latter are drivingly engaged with circumferentially spaced rollers journaled from the outer peripheral portions of driven rings or wheels, the rollers journaled from the driven rings being journaled for rotation about axes generally paralleling the axes of rotation of the driven rings.
Inventors
- 👤 L Grayson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:23
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/10; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19647; Y10T74/19651; Y10T74/19656; Y10T74/19949; Y10T74/19963; Y10T74/19972; Y10T74/19977; Y10T74/19981
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
61 words
In combination, driven rotary shaft means journaled for rotation about a first axis, a pair of driven rings journaLed for rotation about second and third parallel axes, said rings being axially spaced apart and including circumferentially spaced tooth defining rollers journaled therefrom, and drive transmission means including toothed drive wheel means drivingly connecting said rotary shaft means to said driven rings.
Claim 2
Dependent Claim
61 words
In combination, driven rotary shaft means journaled for rotation about a first axis, a pair of driven rings journaLed for rotation about second and third parallel axes, said rings being axially spaced apart and including circumferentially spaced tooth defining rollers journaled therefrom, and drive transmission means including toothed drive wheel means drivingly connecting said rotary shaft means to said driven rings.
Claim 3
Dependent Claim
15 words
The combination of claim 1 wherein said axes of rotation of said driven rings coincide.
Claim 4
Dependent Claim
22 words
The combination of claim 1 wherein said axes of rotation of said driven rings parallel each other and are laterally spaced apart.
Claim 5
Dependent Claim
31 words
The combination of claim 1 wherein said drive transmission means includes means driving said driven rings from said rotary shaft means at the same speed and in opposite directions of rotation.
Claim 6
Dependent Claim
24 words
The combination of claim 1 wherein said circumferentially spaced tooth defining rollers are carried by inwardly facing outer peripheral portions of said driven rings.
Claim 7
Dependent Claim
24 words
The combination of claim 1 wherein said circumferentially spaced tooth defining rollers are carried by axially facing outer peripheral portions of said driven rings.
Claim 8
Dependent Claim
24 words
The combination of claim 1 wherein said circumferentially spaced tooth defining rollers are carried by outwardly facing outer peripheral portions of said driven rings.
Claim 9
Dependent Claim
84 words
The combination of claim 1 wherein said axes of rotation of said driven rings coincide, said rotary shaft means comprising axially spaced shafts having bevel gears mounted on their adjacent ends and toothed wheels on their remote ends meshed with said rollers on said driven rings, and a rotary torque input bevel gear journaled for rotation about an axis disposed at right angles relative to said first axis and having opposite peripheral portions meshed with corresponding peripheral portions of the first mentioned bevel gears.
Claim 10
Dependent Claim
79 words
The combination of claim 1 wherein said axes of rotation of said driven rings coincide, said circumferentially spaced tooth defining rollers are carried by axially facing outer peripheral portions of said driven rings, said rotary shaft means comprising a rotary input shaft extending at right angles through said coinciding second and third axes, said toothed drive wheel means being mounted on said rotary input shaft, meshed with corresponding peripheral portions of said driven rings and disposed between the latter.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |