B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/184
B23P 15/00 (2006.01) B23P 17/00 (2006.01) E06B 3/263 (2006.01) E06B 3/267 (2006.01)
Patent
CA 1157248
ABSTRACT OF THE DISCLOSURE A method of manufacturing a thermally insulating sash bar from an elongated hollow metallic sash bar including a pair of spaced outer members connected by a pair of spaced first and second inner members so as to define between the outer members a pair of longitudinally extending first and second channels and a longitudinally extending hollow chamber. A mass of foamable and thermally insulating synthetic resin is introduced into the first channel and then cured to fill the latter with the cured or thermally insulating synthetic resin. Then, a longitudinal gap is formed in and along each of the first and second inner members. The longitudinal gap in the second inner member is covered with a thermally insulating strip. Finally, a mass of the foamable and thermally insulating synthetic resin is introduced into the second channel and then cured to fill the latter with the cured or foamed thermally insulating synthetic resin.
362858
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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