Kewaunee Scientific Corporation

David K Foote

Kurt P Rindoks

Arturo Ramos

Biological safety cabinet

A mold (,) for molding thin resin sheets includes a center mold plate (,) and two side mold plates (,) disposed on opposite sides of the center mold plate. The mold plates are oriented generally vertically and parallel to each other, and the side mold plates are narrowly spaced from the center mold plate to define a pair of generally vertical mold cavities (,) on either side of the center mold plate. The side mold plates may optionally include recesses (,) in their generally planar mold surfaces (,) adjacent at least one longitudinal edge of the plate, for molding thin resin sheets with integral edge flanges. The mold includes spacer strips (,) for spacing the side mold plates a precise distance from the center mold plate and parallel thereto. The mold thus permits molding of thin resin sheets having precisely controlled uniform thickness.

Apparatus for molding thin resin sheets

The laboratory countertop of the present invention utilizes a thin chemical and heat resistant surfacing panel in the form of a thin planar sheet made of a cured thermoset resin composition. In accordance with one broad aspect of the present invention, the thin chemical and heat resistant surfacing panel is mounted overlying a backing panel of a less expensive and lighter material such as particle board or plywood. The surfacing panel is of a cast, monolithic construction and has a width at least 50 times its thickness and a length at least 100 times its thickness. The surfacing panel can additionally include an edge flange integrally formed with the thin planar sheet. The edge flange hides the underlying backing panel from view and gives the countertop the appearance of a unitary thick slab.

Growing community of inventors

Morganton, NC, United States of America

David K Foote