US3851498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible coupling
Assignee: Individual
•
Filing: 1973-05-22
•
Granted: 1974-12-03
•
Expires: 1993-05-22
Abstract
Abstract A flexible coupling for a pair of aligned rotatable shafts includes a pair of separate arms crossing each other at an oblique angle and provided centrally with means for rigidly mounting them on the adjacent ends of the shafts. The ends of one arm are connected to the adjacent ends of the other arm by a pair of resilient O-rings so that when one of the arms is rotated by its shaft the rings will be put under tension to cause the other arm to rotate in the same direction.
Inventors
- 👤 S Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:06
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/60; F16D3/62
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
A flexible coupling for a pair of aligned rotatable shafts, comprising a pair of separate arms crossing each other and provided centrally with means for rigidly mounting them on the adjacent ends of the shafts, and a pair of resilient O-rings connecting the ends of one arm to the ends of the other arm, the arms being shaped to hold said rings in place in substantially parallel planes substantially parallel to the axis of rotation of the arms, whereby when one of the arms is rotated by a shaft to put the rings under tension the rings will cause the other arm to rotate in the same direction.
Claim 2
Dependent Claim
108 words
A flexible coupling for a pair of aligned rotatable shafts, comprising a pair of separate arms crossing each other and provided centrally with means for rigidly mounting them on the adjacent ends of the shafts, and a pair of resilient O-rings connecting the ends of one arm to the ends of the other arm, the arms being shaped to hold said rings in place in substantially parallel planes substantially parallel to the axis of rotation of the arms, whereby when one of the arms is rotated by a shaft to put the rings under tension the rings will cause the other arm to rotate in the same direction.
Claim 3
Dependent Claim
51 words
A flexible coupling according to claim 1, in which the ends of the arms are provided with notches loosely receiving said rings, and the outer ends of the notches for each ring face away from each other and are narrower than the rings to thereby retain the rings in the notches.
Claim 4
Dependent Claim
31 words
A flexible coupling according to claim 1, in which the rings are free to turn on their axes relative to the arms, and said coupling includes a lubricant coating the rings.
Claim 5
Dependent Claim
14 words
A flexible coupling according to claim 3, in which said lubricant is silicone grease.
Claim 6
Dependent Claim
47 words
A flexible coupling according to claim 1, in which the ends of the arms are disposed in a common plane and are provided with notches loosely receiving the rings, and the coupling includes silicon grease coating the rings to facilitate turning of the rings on their axes.
Claim 7
Dependent Claim
17 words
A flexible coupling according to claim 1, in which there are only two of said crossed arms.
Claim 8
Dependent Claim
40 words
A flexible coupling according to claim 1, in which there are only two of said crossed arms and they cross each other at an oblique angle, each of said rings connecting the arm ends that are closest to each other.
Claim 9
Dependent Claim
40 words
A flexible coupling according to claim 5, in which there are only two of said crossed arms and they cross each other at an oblique angle, each of said rings connecting the arm ends that are closest to each other.
References Cited (Backward Citations)
US1316903A
Cited
US1114326A
Cited
US1602912A
Cited
US2158100A
Cited
DE700184C
Cited
CH303013A
Cited
FR1120269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |