Patent US3590652A successfully refreshed from Google Patents.
US3590652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve and bushing structure for a torque arm speed reducer
Assignee: Individual
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Filing: 1969-11-05
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Granted: 1971-07-06
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Expires: 1989-11-05
Abstract
Abstract The combination of a shaft-mounted speed reducer and a sleeve and bushing structure therefor, in which a sleeve having a bore therein is concentrically mounted on a shaft and secured thereto by split bushings at each end of the sleeve extending into the bore and urged into securing position by a plurality of screws extending through the bushing into a collar on the sleeve at each end thereof. The collars are rotatable relative to each other and to the sleeve on which they are mounted.
Inventors
- 👤 Robert E Strang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:20
CPC Classifications
F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/07; F16C35/073; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/09; F16D1/093; F16D1/095; F16D1/096; F16H; F16H1/00; F16H1/02; F16H1/20; F16H57/00; F16H57/02; F16H57/025; F16C2226/00; F16C2226/10; F16C2226/16; F16C2361/00; F16C2361/61; Y; Y10; Y10T; Y10T403/00; Y10T403/46; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056; Y10T403/7058; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
218 words
In combination with a speed reducer mountable on and supported by a single shaft and having a housing and gear therein with a hub, a substantially cylindrically shaped sleeve of relatively thin walled construction extending through said housing and gear for receiving the shaft internally and the hub of said gear externally, said sleeve having at each end an inwardly tapering internal surface, a split bushing in each end of said hub having a portion with an external tapered surface corresponding to the tapered surface in said sleeve for engagement therewith and a radially extending flange having a plurality of holes and being connected to the outer end of said tapered portion, said tapered portion and radially extending flanges having a slit along one side extending axially and radially therethrough, rings rotatably mounted on the ends of said sleeve for relative rotation with respect to said sleeve and both bushings and having a plurality of threaded holes therein corresponding to the holes in the flanges of said bushings, a means for retaining said rings on the ends of said sleeve, and screws extending through the holes in said flanges into the threaded holes in said rings for urging said tapered portions into engagement with the respective tapering surface in said sleeve and contracting said bushings onto said shaft.
Claim 2
Dependent Claim
218 words
In combination with a speed reducer mountable on and supported by a single shaft and having a housing and gear therein with a hub, a substantially cylindrically shaped sleeve of relatively thin walled construction extending through said housing and gear for receiving the shaft internally and the hub of said gear externally, said sleeve having at each end an inwardly tapering internal surface, a split bushing in each end of said hub having a portion with an external tapered surface corresponding to the tapered surface in said sleeve for engagement therewith and a radially extending flange having a plurality of holes and being connected to the outer end of said tapered portion, said tapered portion and radially extending flanges having a slit along one side extending axially and radially therethrough, rings rotatably mounted on the ends of said sleeve for relative rotation with respect to said sleeve and both bushings and having a plurality of threaded holes therein corresponding to the holes in the flanges of said bushings, a means for retaining said rings on the ends of said sleeve, and screws extending through the holes in said flanges into the threaded holes in said rings for urging said tapered portions into engagement with the respective tapering surface in said sleeve and contracting said bushings onto said shaft.
Claim 3
Dependent Claim
23 words
A combination defined in claim 1 in which said sleeve is provided with a reduced-diameter portion at each end for receiving said rings.
Claim 4
Dependent Claim
25 words
A combination defined in claim 2 in which the sleeve is provided with a radially extending shoulder at the inner end of said reduced-diameter portion.
Claim 5
Dependent Claim
35 words
A combination defined in claim 1 in which the means for holding the rings in place on the ends of the bushing include an annular groove and a snap ring disposed in said annular groove.
Claim 6
Dependent Claim
35 words
A combination defined in claim 3 in which the means for holding the rings in place on the ends of the bushing include an annular groove and a snap ring disposed in said annular groove.
Claim 7
Dependent Claim
27 words
The combination as defined in claim 1 in which the holes in said radially extending flanges are substantially larger than the diameter of the screws extending therethrough.
Claim 8
Dependent Claim
19 words
The combination as defined in claim 1 in which said shaft and bushing include keyways and a key therefor.
Claim 9
Dependent Claim
49 words
The combination as defined in claim 1 in which said rings are of continuous construction and are free to rotate on the ends of said sleeve and in which said flanges contain three substantially equally spaced smooth-walled holes for receiving said screws, of a larger diameter than said screws.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |