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US 5,687,518 AGranted
Window frame having outer frame member made of resin
AssigneeTokuyama Corporation
InventorsTakayuki Endo, Susumu Maeda
Life of this patent
Estimating the term…
Abstract
In a resin window frame (2, 4), an outer frame member (2a, 4a) made of resin blended with cellulose-based fine powder has a hollow portion, and a wooden core member (2b, 4b) having shape and size corresponding to the hollow portion of the outer frame member (2a, 4a) is engagedly inserted into the hollow portion of the outer frame member (2a, 4a).
Claims7
A resin window frame comprising:
- an outer frame member made of resin blended with cellulose-based fine powder, said outer frame member having a hollow portion;
- and
- a wooden core member having shape and size at least partially corresponding to said hollow portion of the outer frame member, wherein said wooden core member is engagedly inserted into said hollow portion of the outer frame member.
Dependencies are inferred from the claim text.