Patent US3594532A successfully refreshed from Google Patents.
US3594532A
Expired / Lapsed
US
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Heating apparatus
Assignee: BOC Group Ltd
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Filing: 1968-12-30
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Granted: 1971-07-20
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Expires: 1988-12-30
Abstract
Abstract Apparatus for heating a workpiece by a radiant energy beam utilizing two mirrors to direct the beam. The first mirror which intercepts the beam from its source is rotatably mounted on a fixed support, and the second mirror is rotatably mounted and is controlled by an electrical system. The second mirror intercepts the beam from the first mirror and transmits the beam to the workpiece.
Inventors
- 👤 Frank W Lunau
- 👤 Keith B Weatherald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
151 words
Apparatus for selectively heating a stationary workpiece, including a stationary source of radiant energy; means for directing said energy in a beam at a rotary first mirror along the axis of rotation thereof, means rotatably mounting said first mirror on a fixed support; a second mirror mounted on a fixed support and including means for moving said second mirror in a two-dimensional area and including electrical control means, said second mirror positioned by said electrical control means to intercept the beam of radiation reflected from said first mirror and to reflect said beam toward said stationary workpiece, means connecting said first mirror to said second mirror and positioned to reflect said beam from said first mirror to said second mirror at all relative positions of each of said mirrors, and means moving said first and second mirrors to direct said beam along a preselected path to be heated on said workpiece.
Claim 2
Dependent Claim
151 words
Apparatus for selectively heating a stationary workpiece, including a stationary source of radiant energy; means for directing said energy in a beam at a rotary first mirror along the axis of rotation thereof, means rotatably mounting said first mirror on a fixed support; a second mirror mounted on a fixed support and including means for moving said second mirror in a two-dimensional area and including electrical control means, said second mirror positioned by said electrical control means to intercept the beam of radiation reflected from said first mirror and to reflect said beam toward said stationary workpiece, means connecting said first mirror to said second mirror and positioned to reflect said beam from said first mirror to said second mirror at all relative positions of each of said mirrors, and means moving said first and second mirrors to direct said beam along a preselected path to be heated on said workpiece.
Claim 3
Dependent Claim
23 words
The apparatus defined in claim 1, in which the movement of said second mirror is controlled by first and second coordinate electric motors.
Claim 4
Dependent Claim
73 words
The apparatus defined by claim 2, in which said first motor includes a drive wheel in frictional engagement with a planar surface on said fixed support, said motor responsive to rotate said wheel at a preselected speed corresponding to the desired path along which the workpiece is to be heated, said second motor including means to vary the relationship of the drive wheel and said planar surface in accordance with a preselected path.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |