Patent US3148265A successfully refreshed from Google Patents.
US3148265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for focusing beams of charged particles
Assignee: RTX Corp
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Filing: 1962-04-30
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Granted: 1964-09-08
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 John A Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:45
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/02; H; H01; H01J; H01J37/00; H01J37/02; H01J37/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
AN ELECTRON BEAM WELDING AND CUTTING MACHINE COMPRISING: MEANS FOR PRODUCING A BEAM OF ELECTRONS, MEANS FOR VARYING THE FOCUS OF SAID BEAM, MEANS FOR POSITINING A WORK PIECE IN LINE WITH SAID BEAM, A BEAM SCANNING MEMBER POSITIONABLE IN LINE WITH SAID BEAM, MEANS FOR CAUSING SAID SCANNING MEMBERTO SCAN A REGION ALONG THE BEAM AXIS WHICH INCLUDES THE LEVEL AT WHICH THE WORK PIECE IS TO BE POSITIONED, MEANS ASSOCIATED WITH SAID SCANNING MEMBER FOR SENSING WHERE THE FOCUSED BEAM IMPINGES THEREON, MEANS RESPONSIVE TO SAID SENSING MEANS FOR COMPARING THE ACTUAL BEAM FOCUS POSITION WITH AN INDICATION OF THE DESIRED BEAM FOCUS POSITION, AND MEANS RESPONSIVE TO SAID COMPARING MEANS FOR VARYING THE OUTPUT OF SAID MEANS FOR VARYING BEAM FOCUS.
Claim 2
Dependent Claim
124 words
AN ELECTRON BEAM WELDING AND CUTTING MACHINE COMPRISING: MEANS FOR PRODUCING A BEAM OF ELECTRONS, MEANS FOR VARYING THE FOCUS OF SAID BEAM, MEANS FOR POSITINING A WORK PIECE IN LINE WITH SAID BEAM, A BEAM SCANNING MEMBER POSITIONABLE IN LINE WITH SAID BEAM, MEANS FOR CAUSING SAID SCANNING MEMBERTO SCAN A REGION ALONG THE BEAM AXIS WHICH INCLUDES THE LEVEL AT WHICH THE WORK PIECE IS TO BE POSITIONED, MEANS ASSOCIATED WITH SAID SCANNING MEMBER FOR SENSING WHERE THE FOCUSED BEAM IMPINGES THEREON, MEANS RESPONSIVE TO SAID SENSING MEANS FOR COMPARING THE ACTUAL BEAM FOCUS POSITION WITH AN INDICATION OF THE DESIRED BEAM FOCUS POSITION, AND MEANS RESPONSIVE TO SAID COMPARING MEANS FOR VARYING THE OUTPUT OF SAID MEANS FOR VARYING BEAM FOCUS.
References Cited (Backward Citations)
DE1072763B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |