Metal working – Method of mechanical manufacture – Providing transitory integral holding or handling portion
Patent
1980-01-30
1982-05-25
Crane, Daniel C.
Metal working
Method of mechanical manufacture
Providing transitory integral holding or handling portion
29155R, 52403, 52731, 49DIG1, B23P 1300, E06B 326, E04B 284
Patent
active
043309194
ABSTRACT:
A connecting element is manufactured, which has two elongated profiled members bounding with one another a channel and provided with at least two separating members which subdivide the channel into an intermediate hollow space and two one-sidedly open sections which are separated from the intermediate space by the separating members forming bottom walls of the sections. A hardenable heat insulating material is supplied into the sections of the channel so as to harden and to form the heat insulating inserts separated from the intermediate hollow space by the bottom walls. The metallic profiled members together with the bottom walls form a unitary one-piece profiled element. A tool is inserted into the intermediate hollow space and separates the bottom walls from the remainder portions of the profiled members as well as removes the same from the intermediate hollow space.
REFERENCES:
patent: 3204324 (1965-09-01), Nilsen
patent: 3624885 (1971-12-01), Holliday et al.
patent: 3823524 (1974-07-01), Weinstein
patent: 3992769 (1976-11-01), Jackson
patent: 4069631 (1978-01-01), Nahr
patent: 4096678 (1978-06-01), Diels et al.
patent: 4128934 (1978-12-01), Doring
patent: 4185439 (1980-01-01), Bischlipp et al.
Bischlipp Klaus
Pfeiffer Jurgen
Crane Daniel C.
Firma Eduard Hueck
Striker Michael J.
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