US3888093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible shaft coupling
Assignee: Reliance Electric Co
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Filing: 1974-02-21
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Granted: 1975-06-10
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Expires: 1994-02-21
Abstract
Abstract A flexible coupling for connecting two shafts in end-to-end relation in which spaced flanges for mounting the coupling on the shafts include an annular radial portion with pins mounted on the internal surface and a flexible torsional element disposed between the two flanges and embracing the pins. The flexible element of rubber or rubber-like material has spaced, inwardly extending side walls in which the holes for receiving the pins are disposed, and the element is preferably of a U-shaped cross sectional configuration. An axial and radial slit is provided in the element to permit it to be opened up for installation and removal without displacing the flanges.
Inventors
- 👤 Holmes A Downey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:26
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/72; F16D3/74; F16D3/56; F16D3/58; F16D2003/745
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
A flexible coupling for connecting two shafts in end-to-end relation, comprising a flange for each shaft, each flange having a hub for connection to a shaft, an annular radial portion connected to said hub and having an inner surface facing the opposite flange, a plurality of spaced pins projecting in an axial parallel direction from the inner surface of the radial portion, and a flexible torsional element of a generally U-shaped cross sectional configuration disposed between said flanges and having spaced, inwardly extending side walls, said side walls projecting laterally and having a plurality of holes in the laterally projecting portion for receiving the pins on the respective flange.
Claim 2
Dependent Claim
109 words
A flexible coupling for connecting two shafts in end-to-end relation, comprising a flange for each shaft, each flange having a hub for connection to a shaft, an annular radial portion connected to said hub and having an inner surface facing the opposite flange, a plurality of spaced pins projecting in an axial parallel direction from the inner surface of the radial portion, and a flexible torsional element of a generally U-shaped cross sectional configuration disposed between said flanges and having spaced, inwardly extending side walls, said side walls projecting laterally and having a plurality of holes in the laterally projecting portion for receiving the pins on the respective flange.
Claim 3
Dependent Claim
35 words
A flexible coupling for connecting two shafts in end-to-end relation as defined in claim 1, in which said torsional element is constructed of rubber-like material and the sides thereof are compressible inwardly toward one another.
Claim 4
Dependent Claim
64 words
A flexible element for connecting two shafts in end-to-end relation as defined in claim 2, in which said element of a generally U-shaped cross sectional configuration has said side walls defining an axial opening therethrough and a slit extends axially and radially through the element to permit the element to be opened up to assemble it on and remove it from the said flanges.
Claim 5
Dependent Claim
33 words
A flexible coupling for connecting two shafts in end-to-end relation as defined in claim 1, in which said hub contains an axial bore, and a means for securing said hub to a shaft.
Claim 6
Dependent Claim
34 words
A flexible coupling for connecting two shafts in end-to-end relation as defined in claim 1, in which said pins are formed integrally with said radial portion and are spaced radially outwardly from said hub.
Claim 7
Dependent Claim
38 words
A flexible coupling for connecting two shafts in end-to-end relation as defined in claim 1, in which an annular peripheral portion is joined to the outer edge of said radial portion and extends axially parallel with the flange.
Claim 8
Dependent Claim
37 words
A flexibLe coupling for connecting two shafts in end-to-end relation as defined in claim 1, in which the two external lateral surfaces of the side walls seat on both of the internal surfaces of said radial portions.
Claim 9
Dependent Claim
47 words
A flexible coupling for connecting two shafts in end-to-end relation as defined in claim 7, in which annular peripheral portions are joined to the external edges of said radial portions and extend toward one another to overlap the edge of the respective side walls of said element.
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) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |