Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1988-01-25
1990-05-08
Hornsby, Harvey C.
Receptacles
Outlet or junction box type
Sectional receptacle
220 83, 229DIG1, B65D 746
Patent
active
049230816
ABSTRACT:
Improved reinforced plastic tanks and novel mandrel processes for producing them are disclosed. One aspect of the invention is concerned with an external support rib and a method for producing it. According to the invention, the rib is fabricated on a hollow rib form secured to the exterior of a tank with resilient netting and thread. The structure comprises chopped fibers and a resin which does not require a source of external heat to cure. The tank with the rib form secured to it is rotated as the lay-up is applied. Netting and threads are supplied to the rib form and they wrap around the rib lay-up and hold it in place until it cures.
Also disclosed is a method for producing a double wall tank incorporating the novel rib. According to this aspect of the invention, the ribs are cured until they are at least tacky. Then, thin flexible panels are wrapped around the outside of the ribs and held in place by a wrap. The panels have a width which is less than the distance between rib centers so that a portion of the top of each rib is exposed between adjacent panels. Two outer endcap forms are positioned at the ends of the tank and an outer tank wall is fabricated over the panels, the exposed rib tops and the outer endcap forms, to produce the external wall of a double wall tank.
REFERENCES:
patent: 3661294 (1972-05-01), Pearson
patent: 4071161 (1978-01-01), Gilbu
patent: 4375860 (1983-03-01), Greaves
patent: 4562934 (1986-01-01), Hammond
patent: 4660738 (1987-04-01), Ives
patent: 4676093 (1987-06-01), Pugnale et al.
patent: 4778075 (1988-10-01), Wiegand et al.
Stickley Dewey C.
Weaver A. Michael
Wiegand Joseph R.
Hornsby Harvey C.
O'Leary K.
Owens-Corning Fiberglas Corporation
Pacella Patrick P.
Rywalski Robert F.
LandOfFree
Storage tanks with fabricated support ribs does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Storage tanks with fabricated support ribs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Storage tanks with fabricated support ribs will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2343751