Patent US1700995A successfully refreshed from Google Patents.
Patent US3791000A successfully refreshed from Google Patents.
US3791000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for smooth-rolling of cylindrical workpiece surfaces
Assignee: Hegenscheidt MFD GmbH and Co KG
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Filing: 1972-10-12
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Granted: 1974-02-12
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Expires: 1992-10-12
Abstract
Abstract A tool is provided, having an annulus of rollers which are inclined to the axis of the annulus and which engage the cylindrical surface of a workpiece located cocentrically with respect to the annulus. The inclination of the rollers, which are rotated with reference to the workpiece and which engage the surface thereof over a drop-shaped area inclined to the axis of the annulus, tends to impart to the workpiece a thrust in one axial direction, and the workpiece is forcibly advanced in the opposite direction against this thrust.
Inventors
- 👤 B Kunze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:33
CPC Classifications
B; B24; B24B; B24B39/00; B24B39/04; B24B39/045; Y; Y10; Y10T; Y10T29/00; Y10T29/47
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A method of continuously smooth-rolling cylindrical workpiece surfaces in a tool having an annulus of rollers which are inclined to the axis of the annulus, comprising the steps of effecting concentric positioning of a workpiece and the annulus of rollers, so that the latter each engage the workpiece under pressure over a drop-shaped area which is inclined to said axis; causing said rollers to orbit about said axis in rolling contact with said workpiece to which they tend to impart a thrust in one axial direction; and forcibly advancing said workpiece in an opposite direction against the thrust exerted by said rollers.
Claim 2
Independent Claim
102 words
A method of continuously smooth-rolling cylindrical workpiece surfaces in a tool having an annulus of rollers which are inclined to the axis of the annulus, comprising the steps of effecting concentric positioning of a workpiece and the annulus of rollers, so that the latter each engage the workpiece under pressure over a drop-shaped area which is inclined to said axis; causing said rollers to orbit about said axis in rolling contact with said workpiece to which they tend to impart a thrust in one axial direction; and forcibly advancing said workpiece in an opposite direction against the thrust exerted by said rollers.
Claim 3
Dependent Claim
19 words
A method as defined in claim 1; and further comprising the step of rotating said workpiece about said axis.
Claim 4
Dependent Claim
21 words
A method as defined in claim 1; and further comprising the step of preventing said workpiece from rotating about said axis.
Claim 5
Dependent Claim
94 words
In an apparatus for smooth-rolling cylindrical workpiece surfaces, a tool head comprising a combination of a hollow conical support; an annulus of workpiece-engaging rollers mounted in and supported by an inner circumferential surface of said support, said rollers each being inclined to the axis of said annulus; a roller cage retaining said rollers in predetermined relative positions; biassing means exerting an axial biassing force upon said roller cage; rotating means for rotating said rollers about said axis; and force-transmitting means acting upon said rollers for urging the same into engagement with a workpiece surface.
Claim 6
Dependent Claim
94 words
In an apparatus for smooth-rolling cylindrical workpiece surfaces, a tool head comprising a combination of a hollow conical support; an annulus of workpiece-engaging rollers mounted in and supported by an inner circumferential surface of said support, said rollers each being inclined to the axis of said annulus; a roller cage retaining said rollers in predetermined relative positions; biassing means exerting an axial biassing force upon said roller cage; rotating means for rotating said rollers about said axis; and force-transmitting means acting upon said rollers for urging the same into engagement with a workpiece surface.
Claim 7
Dependent Claim
32 words
A combination as defined in claim 4, wherein said tool head includes an inner rotatable component and two outer non-rotatable components one of which is displaceable axially with reference to the other.
Claim 8
Dependent Claim
59 words
A combination as defined in claim 5, wherein said force-transmitting means comprises a plurality of hydraulic cylinder-and-piston units arranged in said other components in parallelism with said axis and selectively operable so that some of said units urge said rollers into engagement with the workpiece surface and that others of said units exert a relief pressure on said rollers.
Claim 9
Dependent Claim
46 words
A combination as defined in claim 4, said annulus being conical and having a wider and a narrower open end; and wherein said rollers are so inclined to said axis as to exert upon the workpiece an axial force in direction towards said wider open end.
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |