Patent US5086490A successfully refreshed from Google Patents.
Patent US3988906A successfully refreshed from Google Patents.
US3988906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible coupling
Assignee: Individual
•
Filing: 1975-08-01
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Granted: 1976-11-02
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Expires: 1995-08-01
Abstract
Abstract A drive coupling having a flexible web joining a pair of hubs and including at least one undulation. The undulation has an axis extending substantially at a right angle to the longitudinal axis of the coupling with all sections of the web cut by transverse planes normal to the longitudinal axis of the coupling being substantially parallel.
Inventors
- 👤 Thomas R. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:49
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/005; F16D3/50; F16D3/72; F16D3/74; F16D2003/745; Y; Y10; Y10S; Y10S464/00; Y10S464/902; Y10S464/903; Y10T; Y10T403/00; Y10T403/54
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
125 words
A unitary one piece flexible coupling for transmitting rotational torque comprising: a relatively rigid drive hub connectable to a driving member; a relatively rigid driven hub connectable to a driven member; and at least one relatively thin web formed of the same material as said hubs integrally with and thereby joining said driven hub to said driven hub and including at least one undulation in said web, said web having an axis of curvature extending substantially at a right angle to the longitudinal axis of said hubs with all sections of the web cut by a transverse plane at right angles to the longitudinal axis of the coupling being substantially parallel, said undulating thin web forming a relatively flexible connection between said relatively rigid hubs.
Claim 2
Dependent Claim
125 words
A unitary one piece flexible coupling for transmitting rotational torque comprising: a relatively rigid drive hub connectable to a driving member; a relatively rigid driven hub connectable to a driven member; and at least one relatively thin web formed of the same material as said hubs integrally with and thereby joining said driven hub to said driven hub and including at least one undulation in said web, said web having an axis of curvature extending substantially at a right angle to the longitudinal axis of said hubs with all sections of the web cut by a transverse plane at right angles to the longitudinal axis of the coupling being substantially parallel, said undulating thin web forming a relatively flexible connection between said relatively rigid hubs.
Claim 3
Dependent Claim
27 words
A flexible coupling as defined in claim 1 wherein a pair of said flexible webs are disposed on opposite sides of the longitudinal axis of said hubs.
Claim 4
Dependent Claim
20 words
A flexible coupling as defined in claim 1 wherein said hubs and webs comprise a unitary molding of polycarbonate material.
Claim 5
Dependent Claim
139 words
A unitary one piece flexible coupling for transmitting rotational torque comprising: a relatively rigid drive hub connectable to a driving member; a relatively rigid driven hub generally aligned with said drive hub and connectable to a driven member; and at least one unitary relatively thin web formed of the same material as said hubs integrally with and thereby joining said hubs and including at least one undulation in said web, said web having an axis of undulation extending substantially at a right angle to the longitudinal axis of said hubs and being flat in the direction of said axis of undulation with all sections of the web cut by a transverse plane at right angles to the longitudinal axis of the coupling being substantially parallel, said undulating thin web forming a relatively flexible connection between said relatively rigid hubs.
Claim 6
Dependent Claim
139 words
A unitary one piece flexible coupling for transmitting rotational torque comprising: a relatively rigid drive hub connectable to a driving member; a relatively rigid driven hub generally aligned with said drive hub and connectable to a driven member; and at least one unitary relatively thin web formed of the same material as said hubs integrally with and thereby joining said hubs and including at least one undulation in said web, said web having an axis of undulation extending substantially at a right angle to the longitudinal axis of said hubs and being flat in the direction of said axis of undulation with all sections of the web cut by a transverse plane at right angles to the longitudinal axis of the coupling being substantially parallel, said undulating thin web forming a relatively flexible connection between said relatively rigid hubs.
Claim 7
Dependent Claim
25 words
A flexible coupling as defined in claim 4 wherein a pair of webs are disposed on opposite sides of the longitudinal axis of said hubs.
Claim 8
Dependent Claim
21 words
A flexible coupling as defined in claim 4 wherein a single s-shaped web joins said drive hub to said driven hub.
Claim 9
Dependent Claim
22 words
A flexible coupling as defined in claim 4 wherein said hubs and web comprise a unitary one piece molding of polycarbonate material.
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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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |