US3727429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft coupling
Assignee: Reliance Electric Co
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Filing: 1971-06-10
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Granted: 1973-04-17
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Expires: 1991-06-10
Abstract
Abstract A shaft coupling in which two spaced flanges are mounted on shafts positioned in end to end relation and a torsional element of elastomeric material and of a generally V-shaped cross sectional configuration with axially extending margins is secured to said flanges. The flanges are provided with an annular peripheral surface tapered with an increasing diameter towards the inner side of the flange, and clamping rings secured to the flanges by a plurality of screws and having an axially extending annular portion clamping the margins of the torsional element onto the tapered surfaces.
Inventors
- 👤 H Downey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:54
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/72; F16D3/74; F16D2003/745
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
99 words
A shaft coupling comprising two spaced annular members, each having an axial bore and an annular peripheral surface tapered with an increasing diameter toward the inner side thereof, a torsional element composed of elastomeric material forming a circular structure and having an annular protruding center portion and laterally extending annular margins for seating on said tapered surfaces, a ring-shaped member for each annular member having laterally extending annular portions clamping said margins onto said tapered surfaces, and means for moving the respective annular member and ring-shaped member axially together to seat and retain said margins on said tapered surfaces.
Claim 2
Dependent Claim
99 words
A shaft coupling comprising two spaced annular members, each having an axial bore and an annular peripheral surface tapered with an increasing diameter toward the inner side thereof, a torsional element composed of elastomeric material forming a circular structure and having an annular protruding center portion and laterally extending annular margins for seating on said tapered surfaces, a ring-shaped member for each annular member having laterally extending annular portions clamping said margins onto said tapered surfaces, and means for moving the respective annular member and ring-shaped member axially together to seat and retain said margins on said tapered surfaces.
Claim 3
Dependent Claim
96 words
A shaft coupling comprising two spaced flanges, each having an axial bore for receiving a shaft and an annular peripheral surface tapered with an increasing diameter toward the inner side of the flange, a torsional element composed of elastomeric material forming a circular structure and having an annular protruding center portion and laterally extending annular margins for seating on said tapered surfaces, rings having laterally extending annular portions clamping said margins onto said tapered surfaces, and means for moving said rings axially to seat said rings on said flanges and said margins on said tapered surfaces.
Claim 4
Dependent Claim
96 words
A shaft coupling comprising two spaced flanges, each having an axial bore for receiving a shaft and an annular peripheral surface tapered with an increasing diameter toward the inner side of the flange, a torsional element composed of elastomeric material forming a circular structure and having an annular protruding center portion and laterally extending annular margins for seating on said tapered surfaces, rings having laterally extending annular portions clamping said margins onto said tapered surfaces, and means for moving said rings axially to seat said rings on said flanges and said margins on said tapered surfaces.
Claim 5
Dependent Claim
19 words
A shaft coupling as defined in claim 2 in which said torsional element is of a continuous circular structure.
Claim 6
Dependent Claim
45 words
A shaft coupling as defined in claim 1 in which said torsional element is of a circular structure with a slit extending radially and axially through the structure to permit the structure to be opened when the element is assembled and disassembled on said flanges.
Claim 7
Dependent Claim
38 words
A shaft coupling as defined in claim 4 in which said protruding center portion of said torsional element is of a generally V-shaped configuration and said annular margins extend substantially in the axial direction on opposite sides thereof.
Claim 8
Dependent Claim
31 words
A shaft coupling as defined in claim 2 in which said rings are substantially L-shaped in cross sectional configuration and laterally extending annular portions engage the external surface of said margins.
Claim 9
Dependent Claim
22 words
A shaft coupling as defined in claim 2 in which said rings have a radially extending portion seating on the respective flanges.
Claim 10
Dependent Claim
29 words
A shaft coupling as defined in claim 1 in which said means for moving said rings axially consists of a plurality of screws extending through said radially extending portions.
Claim 11
Dependent Claim
27 words
A shaft coupling as defined in claim 2 in which a plurality of screws extend through said rings and are threadedly received in holes in said flanges.
Claim 12
Dependent Claim
33 words
A shaft coupling as defined in claim 9 in which said rings have a radially extending portion and said screws engage said radial portion to seat said radial portion on the respective flange.
Claim 13
Dependent Claim
51 words
A shaft coupling as defined in claim 10 in which said flanges have a radially extending portion with an outer radially extending portion with an outer radially extending Surface upon which said radially extending portions of said rings seat as said screws are tightened in the threaded holes of said flanges.
Claim 14
Dependent Claim
25 words
A shaft coupling as defined in claim 11 in which said tapered surfaces are on the peripheries of said radially extending portions of the flanges.
Claim 15
Dependent Claim
42 words
A shaft coupling as defined in claim 2 in which said laterally extending annular margins on said element are joined integrally and directly with the edges of said V-shaped configuration and said tapered surfaces and rings embrace substantially all of said margins.
Claim 16
Dependent Claim
52 words
A torsional element for a shaft coupling, comprising a circular structure composed of elastomeric material and having an annular protruding center portion of a generally V-shaped configuration, and margins extending laterally substantially parallel with the center axis of the element and being thicker near the outer edge than near the V-shaped portion.
Claim 17
Dependent Claim
52 words
A torsional element for a shaft coupling, comprising a circular structure composed of elastomeric material and having an annular protruding center portion of a generally V-shaped configuration, and margins extending laterally substantially parallel with the center axis of the element and being thicker near the outer edge than near the V-shaped portion.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |