Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1978-12-20
1980-07-29
Hoag, W. E.
Receptacles
Outlet or junction box type
Sectional receptacle
220 1B, 248146, 264261, 264275, 264277, 264279, 264310, B65D 100, B29C 504
Patent
active
042146704
ABSTRACT:
A technique for the rotational molding of hollow articles having separate but structurally integral compartments is described. A mold in which the article is to be formed is provided with a cover between the mold cavities in which the article compartments are to be rotationally molded. The cover is selectively spaced from the mold wall so that a thermoplastic resin used to form the article can pass through the space between the cover and the mold wall to form the article walls for the compartments. The cover spacing from the mold wall is so selected that the build-up of the article's wall eventually seals off this spacing and enables further rotational molding of an article wall over the cover to isolate the compartments. In the specific embodiment, a technique for the rotational molding of a tank with legs below a bottom wall and a continuous uninterrupted interior bottom surface is described.
REFERENCES:
patent: 2629134 (1953-02-01), Molitor
patent: 2839788 (1958-06-01), Dembiak
patent: 3364292 (1968-01-01), Lemelson
patent: 3903641 (1975-09-01), Hoffman et al.
patent: 4101619 (1978-07-01), Conway et al.
patent: 4143193 (1979-03-01), Rees
Berger Sidney
Cubieta John J.
Hoag W. E.
United Utensils Company, Inc.
LandOfFree
Method for rotationally molding a hollow article and article mad does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for rotationally molding a hollow article and article mad, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for rotationally molding a hollow article and article mad will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-900846