US3742365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam welder incorporating sliding seal means
Assignee: Sciaky Brothers Inc
•
Filing: 1972-02-15
•
Granted: 1973-06-26
•
Expires: 1992-02-15
Abstract
Abstract The present invention relates to apparatus for welding by means of an electron beam and describes a sealing system which allows a machine member carrying an electron beam gun and a second member carrying parts to be welded to slide one with respect to the other while maintaining a low pressure in the electron gun and the area surrounding the parts to be welded. The sliding seal apparatus is applied to linear or rotary translation of the electron beam gun support means with respect to the work holding means.
Inventors
- 👤 D Sciaky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:15
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/06; Y; Y10; Y10S; Y10S285/00; Y10S285/918
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
196 words
An electron beam welding machine for the continuous welding of parts in series comprising a circular table, a seal plate disposed above said circular table, sealable pockets arranged equidistant from each other adjacent the outer edge of the said table, means within said pockets for supporting workpieces to be welded by an electron beam means for rotating the said table in stepwise fashion against a pair of continuous flexible seals mounted in zig-zag concentric form upon the said seal plate so as to form two sealed spaced between the table and the seal plate, means for positioning one of said pockets so that it communicates with one of said spaces which is maintained at a desired welding pressure while the following pocket is positioned so that it communicates with the second space which is maintained at a pressure intermediate to the atmospheric pressure and the welding pressure so as to partially evacuate the pocket, means for evacuating each of said spaces, means for generating, focusing and deflecting a beam of electrons, and means for indexing each of said pockets in sequence into a position under the said electron beam means for a preset interval of time.
Claim 2
Dependent Claim
196 words
An electron beam welding machine for the continuous welding of parts in series comprising a circular table, a seal plate disposed above said circular table, sealable pockets arranged equidistant from each other adjacent the outer edge of the said table, means within said pockets for supporting workpieces to be welded by an electron beam means for rotating the said table in stepwise fashion against a pair of continuous flexible seals mounted in zig-zag concentric form upon the said seal plate so as to form two sealed spaced between the table and the seal plate, means for positioning one of said pockets so that it communicates with one of said spaces which is maintained at a desired welding pressure while the following pocket is positioned so that it communicates with the second space which is maintained at a pressure intermediate to the atmospheric pressure and the welding pressure so as to partially evacuate the pocket, means for evacuating each of said spaces, means for generating, focusing and deflecting a beam of electrons, and means for indexing each of said pockets in sequence into a position under the said electron beam means for a preset interval of time.
Claim 3
Dependent Claim
127 words
An electron beam welding machine, as in claim 1, wherein said pair of flexible seals comprises, at least two endless resilient flexible sealing means supported on a single plane of the said fixed member and arranged so that each one is positioned wholly within the one next largest so as to form separate sealed spaces bounded by the innermost seal and the said fixed and movable members and between each pair of adjacent seals and the said fixed and movable members, the said sealing means being so arranged that it does not lie tangent to a line parallel to the direction of motion of the movable member except at such points where there is a reversal in path of the seal transverse to the direction of motion.
Claim 4
Dependent Claim
21 words
An electron beam as in claim 2 welding machine which each of the said spaced communicates with a separate vacuum pump.
Claim 5
Dependent Claim
31 words
An electron beam welding machine as in claim 2 in which each of said spaces is maintained at a progressively lower gas pressure with the highest pressure in the outermost space.
Claim 6
Dependent Claim
22 words
An electron beam welding machine as in claim 2 in which each of the said flexible seals is arranged in zig-zag form.
Claim 7
Dependent Claim
15 words
An electron beam welding machine as in claim 2 comprising two of said endless seals.
Claim 8
Dependent Claim
52 words
An electron beam welding machine as in claim 6 in which the pressure in the innermost space is maintained at a gas pressure of approximately 50 microns and the pressure in the second space between the two said seals is maintained at a pressure intermediate to 50 microns and the atmospheric pressure.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |