Title:
【発明の名称】組み付け支持リブを備えた貯蔵タンク
Document Type and Number:
Japanese Patent JPH02502992
Kind Code:
A
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.
Inventors:
Waver, Anthony Michael
Wiegand, Joseph Ralph
States Cree, Dway Craig
Wiegand, Joseph Ralph
States Cree, Dway Craig
Application Number:
JP50183189A
Publication Date:
September 20, 1990
Filing Date:
January 23, 1989
Export Citation:
Assignee:
Owens Corning Fiberglass Corporation
International Classes:
B29C53/58; B29C70/16; B29D22/00; B65D90/02; B29D24/00; B65D8/08; B29L24/00; (IPC1-7): B29C67/14; B29L24/00; B65D90/02
Attorney, Agent or Firm:
Kazuzo Yamamoto (1 person outside)