Patent US3626142A successfully refreshed from Google Patents.
US3626142A
Expired / Lapsed
US
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Electron beam machine
Assignee: Union Carbide Corp
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Filing: 1970-05-01
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Granted: 1971-12-07
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Expires: 1990-05-01
Abstract
Abstract An electron beam machine wherein the electron gun is housed in a gun chamber separate from the vacuum chamber housing the work. A moveable seal is maintained around the gun and between the gun chamber and the vacuum chamber.
Inventors
- 👤 James R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:31
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
142 words
An electron beam machine comprising: a vacuum chamber having an opening in at least one wall thereof; a movable worktable mounted in said chamber; an electron beam gun chamber having an opening of similar size and shape as the opening in the wall of said vacuum chamber, mounted on said vacuum chamber such that said access openings register with each other; a flexible barrier member mounted between said vacuum chamber and said gun chamber to form a flexible seal therebetween; an electron beam gun mounted in said gun chamber and extending through said flexible member; and means for moving said gun in said gun chamber; a pressure seal around the portion of said gun extending through said flexible member to maintain pressure isolation of said gun chamber from said vacuum chamber which seal moves with the gun as the gun is moved.
Claim 2
Dependent Claim
142 words
An electron beam machine comprising: a vacuum chamber having an opening in at least one wall thereof; a movable worktable mounted in said chamber; an electron beam gun chamber having an opening of similar size and shape as the opening in the wall of said vacuum chamber, mounted on said vacuum chamber such that said access openings register with each other; a flexible barrier member mounted between said vacuum chamber and said gun chamber to form a flexible seal therebetween; an electron beam gun mounted in said gun chamber and extending through said flexible member; and means for moving said gun in said gun chamber; a pressure seal around the portion of said gun extending through said flexible member to maintain pressure isolation of said gun chamber from said vacuum chamber which seal moves with the gun as the gun is moved.
Claim 3
Dependent Claim
116 words
A clamp-on electron beam machine which can be attached in turn to a number of variety of intermediate chamber or pieceparts comprising; a vacuum chamber housing an electron beam gun; means for moving said gun in said chamber and a vacuum pumping system, said chamber having an opening in one side opposite the gun and normal to the gun axis; a static seal around said opening which will permit the gun chamber to seal directly to a workpiece or to an intermediate chamber; a flexible barrier member mounted to close off the opening in the gun chamber through which a portion of said gun may penetrate; and a pressure seal around said gun and moveable therewith.
Claim 4
Dependent Claim
116 words
A clamp-on electron beam machine which can be attached in turn to a number of variety of intermediate chamber or pieceparts comprising; a vacuum chamber housing an electron beam gun; means for moving said gun in said chamber and a vacuum pumping system, said chamber having an opening in one side opposite the gun and normal to the gun axis; a static seal around said opening which will permit the gun chamber to seal directly to a workpiece or to an intermediate chamber; a flexible barrier member mounted to close off the opening in the gun chamber through which a portion of said gun may penetrate; and a pressure seal around said gun and moveable therewith.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |