Static structures (e.g. – buildings) – Enclosure or cover – with supplemental fluid-guiding port...
Patent
1998-04-29
2000-05-30
Kent, Christopher T.
Static structures (e.g., buildings)
Enclosure or cover, with supplemental fluid-guiding port...
52200, 52219, 526562, 52658, 5274519, 52 58, E04B 718, E04D 1314
Patent
active
060677597
ABSTRACT:
Roof curb structures include side shells made by cutting a series of transversely aligned V-shaped notches and straight slots along top and bottom edges of a continuous length of sheet metal strip material at spaced apart intervals corresponding to the length of each side of the side shells to be formed therefrom. Then the strip material is cut to length corresponding to the length of one, two or four sides of the side shells and the top and bottom edges are roll formed in opposite directions to form oppositely extending top and bottom flanges. Next the severed lengths of strip material are folded at each transversely aligned intermediate notch and slot (if the length is greater than the length of one of the sides) to form continuous right angle corners at such intermediate notches and slots, and the ends of such strip material are either seam welded together or the ends of additional lengths of strip material are fitted and seam welded together to form box-like shells having inturned top flanges and outturned bottom flanges. Then the outturned bottom flanges of the shells are positioned against four identical bottom strips that extend a substantial portion of the length of the outturned bottom flanges and beyond one end into underlying relation to an end of the next adjacent outturned bottom flange, and the outturned bottom flanges and the next adjacent outturned bottom flange are spot welded to the same bottom strips to form rigid bottom supports for the shells.
REFERENCES:
patent: 2126544 (1938-08-01), Everhard
patent: 3363369 (1968-01-01), Miller
patent: 4635409 (1987-01-01), Vandemore
patent: 5016406 (1991-05-01), Calam et al.
patent: 5553425 (1996-09-01), Sampson et al.
patent: 5687514 (1997-11-01), Gillispie
patent: 5806255 (1998-09-01), Verby et al.
RPS-Roof Curbs dated Apr. 1994 (8 pages).
AES Industries Roof Curbs brochure--undated (5 pages).
Kent Christopher T.
Loren Cook Company
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