Patent US3799657A successfully refreshed from Google Patents.
US3799657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical drilling head for lasers
Assignee: Lumonics Material Processing Corp
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Filing: 1972-06-05
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Granted: 1974-03-26
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Expires: 1992-06-05
Abstract
Abstract Apparatus for drilling holes in a circular pattern in a workpiece or coring a hole in a workpiece by directing a laser beam onto the workpiece through an optical system. The optical system has an axis of rotation concurrent with the laser beam and an optical axis offset from the axis of rotation to define a radius. When the optical system is rotated, the laser beam is directed along the optical axis and traces a circle on the workpiece having a radius corresponding to the radius between the optical axis and the axis of rotation. The radius is readily variable for various sizes of cores and hole combinations.
Inventors
- 👤 W Dager
- 👤 W Fredrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:49
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08; B23K26/36; B23K26/38; B23K26/382; B23K26/40; B23K2103/00; B23K2103/50
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
81 words
Apparatus for directing energy from a laser beam having an axis comprising a lens member having an optical axis and a geometric axis which is offset from said optical axis, lens holding means supporting said lens member at a position in which said optical axis and said geometric axis are located to one side of said beam axis, and means for rotating said lens holding means and said lens member about an axis of rotation substantially coincident with said beam axis.
Claim 2
Dependent Claim
81 words
Apparatus for directing energy from a laser beam having an axis comprising a lens member having an optical axis and a geometric axis which is offset from said optical axis, lens holding means supporting said lens member at a position in which said optical axis and said geometric axis are located to one side of said beam axis, and means for rotating said lens holding means and said lens member about an axis of rotation substantially coincident with said beam axis.
Claim 3
Dependent Claim
46 words
Apparatus according to claim 1 wherein said lens member is rotatably mounted in said lens holding means so that said holding member is rotatable around its geometric axis in said lens holding means to adjust the spacing between said optical axis and said axis of rotation.
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |