Patent NL7700697A successfully refreshed from Google Patents.
NL7700697A
Expired / Lapsed
NL
⏱️ 0.0 years remaining
Reinforced window or door frame - has hollow sections of synthetic foam material with internal hollow metal sections and condensed skin
Assignee: Koemmerling Kunststoff
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Filing: 1977-01-24
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Granted: —
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Expires: 1997-01-24
Abstract
Abstract The fixed and/or mobile frame for door and winds is made of a synthetic to give sound and heat insulation. The frame is made of hollow sections of a cellular synthetic material reinforced by hollow metal sections which fit inside them. The outer sections (2) have an external condensed skin (3) and are pressed against the metal inner sections (1) in such a way as to transmit longitudinal shearing stress. The outer sections have air/water-tight flanges (9) extending along their edges. The sections are assembled by means of angle-irons placed in the metal inner sections.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
NL
Data Source
google_patents
Last Synchronized
2026-11-08 01:43
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/06; E06B3/08; E06B3/20; E06B3/205
Claims Analysis
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