Static structures (e.g. – buildings) – Machine or implement
Patent
1986-02-26
1988-06-28
Raduazo, Henry E.
Static structures (e.g., buildings)
Machine or implement
52822, 29526R, E04C 330
Patent
active
047530570
ABSTRACT:
A length of section for framing the leaf of a gate or door or other structure that closes off a building and with a panel, preferably a wooden panel, especially for swinging doors with a sectional strut made out of a strip of sheet metal that is shaped in such a way that its two longitudinal borders are joined parallel into a web designed as a mount for the panel and having perforations for the screws that secure the panel extending through both longitudinal borders. To make sure that the screws will fit through all the perforations once the strip has been shaped into a length of section, the perforations in one longitudinal border are larger than the perforations in the other longitudinal border and in the cross-section of each smaller perforation in the web on the sectional strut is in the vicinity of the correspondingly positioned larger perforation.
REFERENCES:
patent: 149965 (1874-04-01), Wheeler
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patent: 3304109 (1967-02-01), Schuster
patent: 3456972 (1969-07-01), Drotar
patent: 3882756 (1975-05-01), Sauer
patent: 3986318 (1976-10-01), McConnell
patent: 4402170 (1983-09-01), Seidner
Fogiel Max
Hormann KG Amshausen
Raduazo Henry E.
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