Static structures (e.g. – buildings) – With indicia
Patent
1989-09-19
1990-08-14
Ridgill, Jr., James L.
Static structures (e.g., buildings)
With indicia
52235, 52302, E04B 100, E04B 170
Patent
active
049475932
ABSTRACT:
A ventilating curtain wall includes at least a vertical beam secured to a building framework and at least a horizontal beam, both beams being linked together by a ventilating coupler having a hollow bolt poking through the coupler, and each vertical beam being inserted with a ventilating pipe therein, so that a ventilating system will be formed in situ in the curtain wall for ventilating environmental air inside a building interior through a perforated horizontal beam, the ventilating coupler, and the ventilating pipe.
REFERENCES:
patent: 3221453 (1965-12-01), Lietaert
patent: 3223209 (1965-12-01), Skromeda
patent: 3415024 (1968-10-01), Kotlarz
patent: 4055923 (1977-11-01), Biebuyck
patent: 4672784 (1987-06-01), Pohlar
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