US3874194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear type torsion coupling with quickly replaceable sleeve
Assignee: Midland Ross Corp
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Filing: 1974-04-12
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Granted: 1975-04-01
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Expires: 1994-04-12
Abstract
Abstract A coupling for shaft-to-shaft power transmission which comprises two externally toothed hubs for attachment to opposing shaft ends, and an internally toothed sleeve in mesh with the teeth of the hubs. The sleeve is constructed in two or more arcuate sections normally secured together over the hubs by an encircling band-like member.
Inventors
- 👤 Leslie Filepp
- 👤 James S Jones
- 👤 Charles Allia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:16
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/18; F16D3/185
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
154 words
A coupling for connecting a pair of end-to-end shafts comprising: a pair of shaft hubs, each having external gear teeth around an end portion of its periphery, its opposite end portion being of smooth circular contour; a sleeve with internal teeth in meshing relation with the teeth of both hubs, said sleeve comprising multiple sections having longitudinal edges abutting along multiple radial parting planes, and having flange means at each end extending radially inwardly beyond said internal teeth; a cylindrical shell extending tightly over the outer cylindrical surface of said sleeve holding said sections in tight engagement along said planes; retaining means in radially raised and fixed relation with the periphery of opposite end portions of the sleeve adjacent opposite ends of the shell for axially confining said shell on the sleeve between said portions, said retaining means on one of said portions being removable to enable disassembly of said shell and said sections.
Claim 2
Dependent Claim
154 words
A coupling for connecting a pair of end-to-end shafts comprising: a pair of shaft hubs, each having external gear teeth around an end portion of its periphery, its opposite end portion being of smooth circular contour; a sleeve with internal teeth in meshing relation with the teeth of both hubs, said sleeve comprising multiple sections having longitudinal edges abutting along multiple radial parting planes, and having flange means at each end extending radially inwardly beyond said internal teeth; a cylindrical shell extending tightly over the outer cylindrical surface of said sleeve holding said sections in tight engagement along said planes; retaining means in radially raised and fixed relation with the periphery of opposite end portions of the sleeve adjacent opposite ends of the shell for axially confining said shell on the sleeve between said portions, said retaining means on one of said portions being removable to enable disassembly of said shell and said sections.
Claim 3
Dependent Claim
70 words
The coupling of claim 1 wherein: said sleeve comprises projections spaced uniformly over said cylindrical surface and extending radially outwardly therefrom to a surface of revolution of slightly greater diameter than that of the inner surface of said shell before installation of said shell, said projections conforming to the inner surface of said shell by compression or loss of radially outward portions of the projections after installation on said sleeve.
Claim 4
Dependent Claim
19 words
The coupling of claim 2 wherein: said projections are ridges extending axially between said end portions of the sleeve.
Claim 5
Dependent Claim
45 words
The coupling of claim 1 wherein: said retaining means at said one end is an integral circumferential ridge on one end portion of the sleeve and snap ring means received in a circumferential groove in the periphery of the other end portion of the sleeve.
Claim 6
Dependent Claim
32 words
The coupling of claim 1 wherein: said retaining means at said one end is snap ring means received in a circumferential groove in the periphery of each end portion of the sleeve.
Claim 7
Dependent Claim
22 words
The coupling of claim 1 wherein: said retaining means at said one end is a plurality of bosses fixed to said sleeve.
Claim 8
Dependent Claim
55 words
The coupling of claim 1 wherein: said retaining means at said one end is a plurality of bosses integral with said sleeve, said bosses being sloped radially outwardly in a direction toward said cylindrical sleeve surface from a diameter less than the inner diameter of said shell to a diameter greater than said inner diameter.
Claim 9
Dependent Claim
67 words
The coupling of claim 1 wherein: said sleeve comprises an organic synthetic resin having a hardness of 50 to 70 on the Shore Scleroscope D scale. 9.The coupling of claim 8 wherein: said flange means comprises seal rings conforming along their inner diameters to the smooth circumference ends of said hubs, and said sleeve end portions provide grooves for receiving outer circumferential portions of the seal rings.
Claim 10
Dependent Claim
33 words
The coupling of claim 8 wherein: said flange means comprise integral portions of said sleeve, and buffer rings of a harder material secured along the axially inner surfaces of said integral flange portions.
Claim 11
Dependent Claim
59 words
The coupling of claim 1 wherein: said edges of each sleeve define a notch recessed circumferentially from said parting pLane in one edge and a complementary tongue projecting from its other edge from said plane enabling said section to meet along said plane in tongue-in-notch closely fitting relationship preventing axial displacement of one section relative to the other section.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |