US3741070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of bodies of revolution
Assignee: Individual
•
Filing: 1970-06-29
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Granted: 1973-06-26
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Expires: 1990-06-29
Abstract
Abstract A method and machine for machining bodies of revolution in which the part to be machined is rotated about its axis and is machined by means of a milling tool mounted on the end of a rotating spindle, whose axis is essentially perpendicular to the axis of the part to be machined, the milling tool being displaceable along a path parallel to the axis of the part, and the milling tool being adjustable in height by displacement of its axis of rotation along a plane perpendicular to the axis of the part to be machined.
Inventors
- 👤 C Berthiez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:24
CPC Classifications
B; B23; B23C; B23C7/00; B23C7/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/303808; Y10T82/00; Y10T82/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A method of machining a body of revolution having a diameter D, said method comprising the steps of rotating said body about its axis, selecting a milling tool of diameter d, mounting said milling tool on the end of a rotating spindle whose axis is perpendicular to the axis of said body, displacing said milling tool along a path parallel to the axis of said body and adjusting the depth of undulation f of the milling tool by displacing its axis of rotation along a plane perpendicular to the axis of said body according to the relationship: f D/2 - square root (D/d)2 - b2 where b is equal to one-half the height of a circular segment formed by a chord having a length equal to the width of cut on a circle having a diameter d.
Claim 2
Independent Claim
137 words
A method of machining a body of revolution having a diameter D, said method comprising the steps of rotating said body about its axis, selecting a milling tool of diameter d, mounting said milling tool on the end of a rotating spindle whose axis is perpendicular to the axis of said body, displacing said milling tool along a path parallel to the axis of said body and adjusting the depth of undulation f of the milling tool by displacing its axis of rotation along a plane perpendicular to the axis of said body according to the relationship: f D/2 - square root (D/d)2 - b2 where b is equal to one-half the height of a circular segment formed by a chord having a length equal to the width of cut on a circle having a diameter d.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |