US4041794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism of transmission
Assignee: Ebauches SA
•
Filing: 1976-10-20
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Granted: 1977-08-16
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Expires: 1996-10-20
Abstract
Abstract The present invention has for object a mechanism of transmission comprising two toothed wheels meshing with each other.
Inventors
- 👤 Michel Belot
- 👤 Norberto Perucchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:15
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/003; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19949; Y10T74/19963; Y10T74/19972
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
87 words
Mechanism of transmission comprising two toothed wheels meshing with each other, characterized by the fact that the module of one of the said wheels is greater of 10 to 20% than this one of the other wheel, so that, when the wheel of great module is driving, the rotation of the mechanism takes place normally, the wheel of small module being duly driven while, when the wheel of small module is driving, a locking effect takes place between the teeth of the two wheels, preventing any rotation.
Claim 2
Dependent Claim
87 words
Mechanism of transmission comprising two toothed wheels meshing with each other, characterized by the fact that the module of one of the said wheels is greater of 10 to 20% than this one of the other wheel, so that, when the wheel of great module is driving, the rotation of the mechanism takes place normally, the wheel of small module being duly driven while, when the wheel of small module is driving, a locking effect takes place between the teeth of the two wheels, preventing any rotation.
Claim 3
Dependent Claim
33 words
Mechanism as claimed in claim 1, characterized by the fact that the distance between the centers of the two wheels is higher than the sum of the radii of their two primitive circles.
Claim 4
Dependent Claim
24 words
Mechanism as claimed in claim 1, characterized by the fact that the end of the teeth of the wheel of small module is rounded.
Claim 5
Dependent Claim
26 words
Mechanism as claimed in claim 1, characterized by the fact that the end of the teeth of the wheel of small module is of square shape.
Claim 6
Dependent Claim
83 words
Mechanism as claimed in claim 1, characterized by the fact that each tooth of the wheel of great module has a surface substantially perpendicular to the radius of this wheel coinciding with the axis of the tooth, so that, when the wheel of small module is driving, the force exerted by a tooth of the wheel of small module on a tooth of the wheel of great module passes through the center of this last wheel, that produces the locking of the mechanism.
Claim 7
Dependent Claim
29 words
Mechanism as claimed in claim 5, characterized by the fact that the said surface of each tooth of the wheel of great module is constituted by a flat part.
Claim 8
Dependent Claim
24 words
Mechanism as claimed in claim 1, characterized by the fact that the end of each tooth of the wheel of small module is cylindrical.
Claim 9
Dependent Claim
33 words
Mechanism as claimed in claim 1, characterized by the fact that the wheel of great module comprises a number of teeth higher than the number of teeth of the wheel of small module.
Claim 10
Dependent Claim
33 words
Mechanism as claimed in claim 1, characterized by the fact that the wheel of great module comprises a number of teeth lower than the number of teeth of the wheel of small module.
Claim 11
Dependent Claim
20 words
Mechanism as claimed in claim 1, characterized by the fact that the two wheels have the same number of teeth.
References Cited (Backward Citations)
US2760381A
Cited
US3817117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |