Receptacles – Envelope for electric lamp or similar device – Tv tube
Patent
1976-03-23
1978-10-10
Marcus, Stephen
Receptacles
Envelope for electric lamp or similar device
Tv tube
313 59, 313420, H01J 3518
Patent
active
041192346
ABSTRACT:
A vacuum-tight window construction for the passage of X-ray and similar penetrating radiation, the edge of the window having the shape of a tube and being tightly secured with a tube-shaped frame. The connection between the window and the frame is effected by a press-fit combination of three tube-shaped parts one into the other. One part is the tubular edge of the window, the second part is the edge of the frame, and the third part is an additional ring, the materials being selected such that the coefficient of thermal expansion of the outermost part is lower than that of the part disposed in the middle, and that of the innermost part is at least equal to that of the outermost part and less than that of the center part. The outermost and innermost parts can be composed of steel, and the middle part of pure or alloyed aluminum.
REFERENCES:
patent: 1517322 (1924-12-01), Templin
patent: 2187126 (1940-01-01), Kern et al.
patent: 2222197 (1940-11-01), Engels
patent: 2820168 (1958-01-01), Stiff
patent: 3828190 (1974-08-01), Dahlin et al.
patent: 3878417 (1975-04-01), Eberlein
Frank Richard
Kotschak Otto
Marcus Stephen
Siemens Aktiengesellschaft
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