Patent US3659467A successfully refreshed from Google Patents.
US3659467A
Expired / Lapsed
US
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Orbiting roller mechanical vibration generator
Assignee: Shell USA Inc
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Filing: 1969-10-29
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Granted: 1972-05-02
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Expires: 1989-10-29
Abstract
Abstract The roller of an orbiting roller vibration generator is radially retained within an internal raceway formed in the oscillator body member, and driven in rolling engagement with the raceway by a crank having four hydrodynamic bearings: two trunnion bearings concentric with the raceway and two crankpin bearings concentric with the roller; the clearances in said bearings providing the radial compliance necessary to accommodate the radial motions, due to deflections and manufacturing imperfections of the roller relative to the trunnion bearing centerline, without transferring a significant part of the roller radial load from the race to the crank bearings.
Inventors
- 👤 Peter V H Serrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:56
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/10; B06B1/16; B06B1/167; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344; Y10T74/18544; Y10T74/18552
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
Anorbiting roller oscillator, said oscillator comprising: means forming a relatively fixed housing; said housing means including a cylindrical raceway; a closed loop crankshaft journaled for rotation in said housing co-axial with said cylindrical raceway; said crankshaft including a pair of axially aligned hydrodynamically lubricated journals; an elongated crank pin carried by said crankshaft in an off-set relationship to said journals, the crank pin extending axially for substantially the length of the raceway; cylindrical roller means mounted for rotation movement about said crankpin and radially restrained by and directly engaging said cylindrical raceway; said cylindrical roller means tangentially driven by hydrodynamic bearings means on said crankpin extending along the entire length of the crankpin through the roller means; said hydrodynamic journal and crankpin bearings permitting said cylindrical roller to move radially into engagement with said cylindrical raceway without imposing significant radial load on said crankshaft, oscillating movement within the bearing clearances due to radial variations in the raceway being hydrodynamically lubricated by the preponderantly rotational movement within the bearings; a source of lubricating fluid; conducting means extending along said crank means for directing said fluid to said bearings; and, end bearing means carried by said housing; said end bearing means engaging the ends of said cylindrical roller means.
Claim 2
Dependent Claim
207 words
Anorbiting roller oscillator, said oscillator comprising: means forming a relatively fixed housing; said housing means including a cylindrical raceway; a closed loop crankshaft journaled for rotation in said housing co-axial with said cylindrical raceway; said crankshaft including a pair of axially aligned hydrodynamically lubricated journals; an elongated crank pin carried by said crankshaft in an off-set relationship to said journals, the crank pin extending axially for substantially the length of the raceway; cylindrical roller means mounted for rotation movement about said crankpin and radially restrained by and directly engaging said cylindrical raceway; said cylindrical roller means tangentially driven by hydrodynamic bearings means on said crankpin extending along the entire length of the crankpin through the roller means; said hydrodynamic journal and crankpin bearings permitting said cylindrical roller to move radially into engagement with said cylindrical raceway without imposing significant radial load on said crankshaft, oscillating movement within the bearing clearances due to radial variations in the raceway being hydrodynamically lubricated by the preponderantly rotational movement within the bearings; a source of lubricating fluid; conducting means extending along said crank means for directing said fluid to said bearings; and, end bearing means carried by said housing; said end bearing means engaging the ends of said cylindrical roller means.
Claim 3
Dependent Claim
40 words
The oscillator of claim 1 wherein said end bearing means are conical in shape over substantially the entire radial length thereof and engaging ends of said cylindrical roller means have a complimentary shape favorable to the development of hydrodynamic lubrication.
Claim 4
Dependent Claim
90 words
The oscillator of claim 1 wherein said hydrodynamic bearing means includes a cylindrical floating bushing fitting within an annular space between a cylindrical bore in said roller means and said crankpin extending therethrough, the cylindrical floating bushing extending substantially the length of the roller means; and includes flanged floating bushings fitted within the annular space between said housing and the said axially aligned journals; means directing lubricant to said floating bushing bearings, said bearings as widely axially spaced as possible to give directional guidance and damping to said roller means.
References Cited (Backward Citations)
US2884790A
Cited
US2947183A
Cited
US3499692A
Cited
US3189106A
Cited
US3358815A
Cited
US3472565A
Cited
US3486387A
Cited
US3512850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |