Patent US3597577A successfully refreshed from Google Patents.
US3597577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray examination of welds
Assignee: COMBUSTIBLE NUCLEAIRE
•
Filing: 1968-09-04
•
Granted: 1971-08-03
•
Expires: 1988-09-04
Abstract
Abstract The welding seam between two metal parts which are being or have been electron beam welded in a vacuum enclosure are examined by means of X-rays generated within said enclosure by electron bombardment of an anticathode or target located inside said enclosure. The electron beam used for bombarding the target may be generated by the same gun as that used for the welding, deflection means being provided for deflecting said beam from the welding site to the X-ray target and vice versa. Alternately, at least two separate electron guns may be provided, one being used to generate the electron beam for bombarding the X-ray target, and the other or others for the welding.
Inventors
- 👤 Jean Claude Eugene Guittet
- 👤 Jean Claude Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:24
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/18; G01N23/083
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
The method for welding and X-ray detecting properties of welds between metal parts in a vacuum enclosure comprising: positioning metal parts in an enclosure, maintaining a vacuum environment within the enclosure, generating first and second electron beams in the enclosure, directing the first electron beam on the parts, thereby welding the parts, directing the second electron beam through the environment of the vacuum enclosure to an anticathode positioned inside the vacuum enclosure, and spaced from a generator of the second electron beam, thereby electronically bombarding the anticathode and generating an X-ray beam, directing the X-ray beam on a weld between the metal parts, and receiving an X-ray beam passing through the weld on an X-ray sensitive surface.
Claim 2
Dependent Claim
131 words
Welding and X-ray apparatus for welding and detecting properties of welds between metal parts comprising a vacuum enclosure enclosing the metal parts, an anticathode positioned in the enclosure, an electron beam generating means positioned in the enclosure for generating an electron beam, an electron beam switching means positioned in the enclosure for directing the electron beam generated in the enclosure toward the metal parts to be welded and alternately directing the electron beam to an impact point on the anticathode for electronically bombarding the anticathode and thereby generating an X-ray beam and for directing the X-ray beam toward the metal parts, and an X-ray sensitive means positioned on a side of the metal parts opposite the anticathode for receiving an X-ray beam passing through a weld area on the metal parts.
Claim 3
Dependent Claim
21 words
The apparatus according to claim 3 wherein the anticathode is made of a metal having an atomic number greater than 40.
Claim 4
Dependent Claim
29 words
The apparatus according to claim 3 wherein the anticathode is made of a light metal selected from the grouP of light metals consisting of copper, chrome, manganese and iron.
Claim 5
Dependent Claim
152 words
Welding and X-ray apparatus for detecting properties of electronic welds between metal parts in a vacuum enclosure comprising a vacuum enclosure enclosing the metal parts and creating a vacuum environment, an anticathode positioned in the enclosure adjacent the metal parts, first electron gun means positioned in the enclosure for directing a welding electron beam in the enclosure toward the metal parts to be welded, second electron gun means positioned in the enclosure remote from the anticathode and remote from the metal parts for directing an electron beam through the environment of the vacuum enclosure to an impact point on the anticathode for electronically bombarding the anticathode and thereby generating an X-ray beam and for directing the X-ray beam toward the metal parts, and an X-ray sensitive means positioned on a side of the metal parts opposite the anticathode for receiving an X-ray beam passing through a joint area of the metal parts.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |