Method for manufacturing a heat insulation sash bar

Details Method for manufacturing a heat insulation sash bar Method for manufacturing a heat insulation sash bar

1982-05-10

1985-02-05

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Providing transitory integral holding or handling portion

B23P 1700

Patent

active

044971036

ABSTRACT:
The invention provides a novel method for manufacturing a heat insulating sash bar for window frame constructed with two oppositely positioned metal-made face members, one facing inside of the room and the other facing outside of the room, connected together only with a connecting member of a heat insulating material and not with any metal-made part to ensure heat insulation between the two face members. According to the method, the heat insulating connecting member is first inserted into the groove-like channel of a metal-made bar material having an approximately H-wise or U-shaped cross section composed of the two face members connected with a connecting part, the heat insulating connecting member is then securely fixed to the face members by caulking, the connecting part with which the face members have been integrally connected is longitudinally at least partly removed over whole length thereof to thermally isolate the face members from each other, and finally the remaining groove-like channel is filled, for example, with a pourable heat insulating material to be cured or solidified in situ.

REFERENCES:
patent: 3992769 (1976-11-01), Jackson
patent: 4128934 (1978-12-01), Doring
patent: 4185439 (1980-01-01), Bischlipp et al.
patent: 4330919 (1982-05-01), Bischlipp et al.
patent: 4342144 (1982-08-01), Doguchi

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