Patent US3739600A successfully refreshed from Google Patents.
US3739600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for joining two shafts liable to non-alignment and to displacement along their axes, about a mean position
Assignee: Creusot Loire SA
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Filing: 1971-09-28
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Granted: 1973-06-19
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Expires: 1991-09-28
Abstract
Abstract A coupling for joining tow shafts liable to non-alignement and to displacement along their axes, comprising a plurality of deformable articulated systems for connecting the shafts, each having a lever pivoted at its centre on a radial pivot fixed to a first shaft, and two rods of equal lengths, each pivoted at one end on one end of the lever, extending in opposite directions on each side of the lever and having their other ends pivotably connected to the second shaft, the lengths of the rods and of the lever and the positions of the pivots being selected so that the rods are substantially parallel to one another and perpendicular to the axis of the shaft to which they are connected when the shafts are in their mean relative positions.
Inventors
- 👤 G Pere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:12
CPC Classifications
F; F16; F16D; F16D3/00; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32163; Y10T403/32172
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
134 words
A coupling for joining two shafts liable to non-alignment and to displacement along their axes, about a mean position, comprising a plurality of deformable articulated systems for connecting the shafts, each having a lever pivoted at its centre on a radial pivot fixed to a first shaft, and two rods of equal lengths, each pivoted at one end on one end of the lever, extending in opposite directions on each side of the lever and having their other ends pivotably connected to the second shaft, the lengths of the rods and of the lever and the positions of the pivots being selected so that the rods are substantially parallel to one another and perpendicular to the axis of the shaft to which they are connected when the shafts are in their mean relative positions.
Claim 2
Dependent Claim
134 words
A coupling for joining two shafts liable to non-alignment and to displacement along their axes, about a mean position, comprising a plurality of deformable articulated systems for connecting the shafts, each having a lever pivoted at its centre on a radial pivot fixed to a first shaft, and two rods of equal lengths, each pivoted at one end on one end of the lever, extending in opposite directions on each side of the lever and having their other ends pivotably connected to the second shaft, the lengths of the rods and of the lever and the positions of the pivots being selected so that the rods are substantially parallel to one another and perpendicular to the axis of the shaft to which they are connected when the shafts are in their mean relative positions.
Claim 3
Dependent Claim
34 words
A coupling as claimed in claim 1, in which the shafts are in alignment, comprising two articulated systems symmetrical relative to the axis and a device for centering the shafts relative to one another.
Claim 4
Dependent Claim
18 words
A coupling as claimed in claim 1, comprising at least three independent articulated systems equispaced about the axis.
Claim 5
Dependent Claim
95 words
A coupling as claimed in claim 1, wherein the articulated connecting systems are arranged one after the other to form a chain around the shafts, the pivoted connections between the rods and the second shaft being formed by rockers, each of which is pivoted at its centre on a radial pivot fixed to the second shaft and has pivoted on its ends the rods of two successive systems situated on each side of the rocker, the rockers being substantially parallel to the axis of the second shaft when the assembly is in the mean position.
Claim 6
Dependent Claim
27 words
A coupling as claimed in claim 4, wherein one of the rockers is omitted, the ends of the associated rods being pivoted directly on the second shaft.
Claim 7
Dependent Claim
26 words
A coupling as claimed in claim 1, wherein the ends of one of the rods connected directly to the second shaft is mounted on an eccentric.
Claim 8
Dependent Claim
38 words
A coupling as claimed in claim 1, further comprising an extension which is situated between the two shafts and of which each end is connected to the end of the associated shaft by an assembly of articulated systems.
Claim 9
Dependent Claim
56 words
A coupling as claimed in claim 7, wherein it connects a fixed reducing gear to a pinion for driving a toothed rim mounted in a housing equipped in a known manner with rollers supported on cylindrical bearing surfaces coaxial with the rim, and comprising means for balancing the weight of the extension and of the coupling.
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |