Metal working – Method of mechanical manufacture – Obtaining plural product pieces from unitary workpiece
Patent
1975-10-16
1976-11-23
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Obtaining plural product pieces from unitary workpiece
29155R, 29190, 29418, 29451, 29509, 52403, B23P 1700
Patent
active
039927695
ABSTRACT:
A method of making a thermal barrier construction element or shape, wherein a single metal construction element of a predetermined design or shape having a suitable opening therein for receiving an insulating member, is extruded in a normal manner, the insulating member is inserted in the receiving opening of the metal extrusion, the metal extrusion is crimped or stitched whereby the insulating member is mechanically locked in position in the metal extrusion, and a portion of the metal extrusion is subsequently removed therefrom to provide the thermal barrier construction element.
REFERENCES:
patent: 3204324 (1965-09-01), Nilsen
patent: 3393487 (1968-07-01), Nolan
patent: 3411254 (1968-11-01), Kessler
patent: 3420026 (1969-01-01), Nolan
patent: 3441995 (1969-05-01), Revell et al.
patent: 3517472 (1970-06-01), Toth
patent: 3547603 (1970-12-01), Bragman
patent: 3579724 (1971-05-01), Toth
patent: 3815216 (1974-06-01), Brockway
patent: 3823524 (1974-07-01), Weinstein
patent: 3903587 (1975-09-01), Boiardi
Ethyl Corporation
Johnson Donald L.
Leonard Paul H.
Moon Charlie T.
Sieberth John F.
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