Electric heating – Metal heating – Nonatmospheric environment at hot spot
Patent
1992-08-12
1993-10-26
Shaw, Clifford C.
Electric heating
Metal heating
Nonatmospheric environment at hot spot
219 61, 219160, B23K 916
Patent
active
052568474
ABSTRACT:
A chamber includes a plurality of chamber elements, forming a chamber having a bottom, sides, ends and an open top, and a support wire for flexibly linking the chamber elements. The chamber elements include a first set of U-shaped members having arm portions, an upper bottom portion and a lower bottom portion, an interior space being defined between the upper bottom portion and the lower bottom portion, the U-shaped members having perforations in the upper bottom portions, cutouts being formed in opposing edges of the arm portions; a second set of U-shaped members having arm portions and a bottom portion; and pins mounted between the arm portions of the second set of U-shaped members, members of the first set of U-shaped members and the second set of U-shaped members being alternatingly disposed, the cutouts of the first set of U-shaped members interacting with the pins of the second set of U-shaped members whereby members of the first set of U-shaped members can be pivoted relative to adjacent member of the second set of U-shaped members. Positioning structure is also disclosed to position the chamber in close proximity to a workpiece.
REFERENCES:
patent: 2866074 (1958-12-01), Ronay
patent: 3450857 (1969-06-01), Webb
patent: 4599505 (1986-07-01), Lukens et al.
patent: 4839489 (1989-06-01), Dyer
patent: 4866236 (1989-09-01), DeNale et al.
patent: 4956537 (1990-09-01), Schnorrer
patent: 5084603 (1992-01-01), Bernuchon et al.
Intevep S.A.
Shaw Clifford C.
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