Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1978-08-11
1981-01-06
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 43, 34155, 34156, 118672, 118 68, 226 97, 34222, 34229, F26B 310
Patent
active
042428076
ABSTRACT:
Heat treating apparatus for continuous painted strip, comprising an elongated, convective heating oven through which painted strip is passed while jets of hot gas are directed against the top and bottom surfaces of the strip to dry and cure the paint film. The strip is suspended from tension bridles at opposite ends of the oven, and hangs in a relatively flat catenary curve therefrom. Spaced longitudinally within the oven is a plurality of pairs of headers which are arranged to follow the catenary curve of the strip, each of said pairs comprising an upper header located above the strip and a lower header located below the strip. Each of the headers has a plurality of jet nozzles directed toward the strip, and duct means is provided for supplying hot gas to the headers so that the nozzles send jets of hot gas impinging against the strip. The static and dynamic pressure of the jets of hot gas cause the strip to float while still following the catenary curve that the strip takes when merely hanging by gravity from the bridles. However, when the strip is floated by the hot gas jets, all or most of the weight of the strip is carried by the gas, and tension in the strip is correspondingly reduced. Each of the headers is adjustable vertically so that it can be positioned to closely approximate the catenary curve of the strip, and also so that it can be moved closer to or further away from the strip so as to increase or decrease the amount of flotation.
REFERENCES:
patent: 3033539 (1962-05-01), Cook et al.
patent: 3198499 (1965-08-01), Stanley
patent: 3234662 (1966-02-01), Alexeff et al.
patent: 3262688 (1966-07-01), Beggs
patent: 3367039 (1968-02-01), Jacobsen
patent: 3668788 (1972-06-01), Kobayashi
"Lay On Air"-Ovens & Dryers for Aluminum Foil Strip-Vits-date unknown.
Catenary Systems Automated Sheet Tension Controls-Drexelbrook Engrg. Company-date unknown.
Hunter Engineering Co., Inc.
Schwartz Larry I.
Tobin Robert T.
LandOfFree
Paint line flotation oven does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Paint line flotation oven, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paint line flotation oven will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-278920