Abstract: A device for the treatment of selected solutions wherein the device is a sealed container including a chemical mixture therein, at least one of the ingredients being magnetite.
Abstract: An expandable shaft of the slotted type made of a fiber and resin composite material. The shaft is fabricated by first forming the central cylindrical core and then forming the rails by pultrusion. The rails are then bonded to the outer surface of the core.
Type:
Grant
Filed:
August 10, 1993
Date of Patent:
January 10, 1995
Assignees:
Addax, Inc., Goldenrod, Inc.
Inventors:
Alessio G. Pretto, Louis J. Keester, Richard S. Hansen