Patent US3641351A successfully refreshed from Google Patents.
US3641351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser device for controlled guidance of fabricating machine
Assignee: Siemens AG
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Filing: 1969-10-15
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Granted: 1972-02-08
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Expires: 1989-10-15
Abstract
Abstract A receiver stably affixed to a fabricating machine comprises at least two spaced photosensitive units, positioned transversely to a reference plane formed by a flared modulated laser guide beam, one on each side of the reference plane. A difference amplifier is connected to the photosensitive units in a manner whereby deviation of the fabricating machine from the reference plane produces an output control signal of the difference amplifier for guiding the fabricating machine back into the reference plane.
Inventors
- 👤 Otmar Hintringer
- 👤 Walter Koniger
- 👤 Jurgen Thorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:33
CPC Classifications
G; G01; G01C; G01C15/00; G01C15/002; G01C15/004; Y; Y10; Y10S; Y10S37/00; Y10S37/907
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
A device for the controlled guidance of a fabricating machine in a reference plane, said device comprising securely mounted laser apparatus producing a modulated guide beam; means for modulating said guide beam; flaring means adjacent said laser apparatus for flaring said guide beam in said reference plane; and receiving means stably affixed to a fabricating machine, said receiving means comprising at least two spaced photosensitive units positioned transversely to said reference plane, one on each side Of said reference plane, and a difference amplifier connected to said photosensitive units in a manner whereby deviation of the fabricating machine from said reference plane produces an output control signal of said difference amplifier for guiding the fabricating machine back into said reference plane.
Claim 2
Independent Claim
121 words
A device for the controlled guidance of a fabricating machine in a reference plane, said device comprising securely mounted laser apparatus producing a modulated guide beam; means for modulating said guide beam; flaring means adjacent said laser apparatus for flaring said guide beam in said reference plane; and receiving means stably affixed to a fabricating machine, said receiving means comprising at least two spaced photosensitive units positioned transversely to said reference plane, one on each side Of said reference plane, and a difference amplifier connected to said photosensitive units in a manner whereby deviation of the fabricating machine from said reference plane produces an output control signal of said difference amplifier for guiding the fabricating machine back into said reference plane.
Claim 3
Dependent Claim
35 words
A device for the controlled guidance of a fabricating machine in a reference plane as claimed in claim 1, wherein said flaring means comprises a cylinder lens positioned in the path of said guide beam.
Claim 4
Dependent Claim
46 words
A device for the controlled guidance of a fabricating machine in a reference plane as claimed in claim 1, wherein said flaring means comprises a rotatably mounted mirror positioned in the path of said guide beam and rotated about an axis perpendicular to said reference plane.
Claim 5
Dependent Claim
47 words
A device for the controlled guidance of a fabricating machine in a reference plane as claimed in claim 1, further comprising scattered radiation shields adjacent said photosensitive units for protecting said photosensitive units from external scattered radiation, said shields comprising interference filters tuned to said guide beam.
Claim 6
Independent Claim
193 words
A device for the controlled guidance of a fabricating machine in a straight reference line, said device comprising securely mounted laser apparatus producing a modulated guide beam; means for modulating said guide beam; beam-dividing means adjacent said laser apparatus positioned in the path of said guide beam for producing two component bundles of rays; flaring means adjacent said beam-dividing means for flaring each of said component bundles of rays in a manner whereby the flared bundles of rays form two reference planes crossing each other at substantially right angles; and receiving means affixed to a fabricating machine, said receiving means comprising two sets of at least two spaced photosensitive units, each set of photosensitive units being positioned transversely to a corresponding one of said reference planes with at least one of its photosensitive units on each side of said corresponding one of said reference planes and a pair of difference amplifiers each connected to a corresponding set of said photosensitive units in a manner whereby deviation of the fabricating machine from said reference line produces an output control signal of said difference amplifiers for guiding the fabricating machine back into said reference line.
Claim 7
Independent Claim
193 words
A device for the controlled guidance of a fabricating machine in a straight reference line, said device comprising securely mounted laser apparatus producing a modulated guide beam; means for modulating said guide beam; beam-dividing means adjacent said laser apparatus positioned in the path of said guide beam for producing two component bundles of rays; flaring means adjacent said beam-dividing means for flaring each of said component bundles of rays in a manner whereby the flared bundles of rays form two reference planes crossing each other at substantially right angles; and receiving means affixed to a fabricating machine, said receiving means comprising two sets of at least two spaced photosensitive units, each set of photosensitive units being positioned transversely to a corresponding one of said reference planes with at least one of its photosensitive units on each side of said corresponding one of said reference planes and a pair of difference amplifiers each connected to a corresponding set of said photosensitive units in a manner whereby deviation of the fabricating machine from said reference line produces an output control signal of said difference amplifiers for guiding the fabricating machine back into said reference line.
Claim 8
Dependent Claim
41 words
A device for the controlled guidance of a fabricating machine in a reference line as claimed in claim 5, wherein said flaring means comprises two cylinder lenses each positioned in the path of a corresponding one of said bundles of rays.
Claim 9
Dependent Claim
56 words
A device for the controlled guidance of a fabricating machine in a reference line as claimed in claim 5, wherein said flaring means comprises two rotatably mounted mirrors each positioned in the path of a corresponding one of said bundles of rays and rotated about an axis perpendicular to a corresponding one of said reference planes.
Claim 10
Dependent Claim
48 words
A device for the controlled guidance of a fabricating machine in a reference line as claimed in claim 5, further comprising scattered radiation shields adjacent said photosensitive units for protecting said photosensitive units from external scattered radiation, said shields comprising interference filters tuned to said bundles of rays.
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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |