Abstract: A learning device including a holder having a storage area and a display area. Information cards including a problem and a coded solution are selectively introduced into the display area wherein the problem remains visible and the coded answer is viewed through one or more specifically configured openings which combine with the coded answer to provide a deciphered or readable answer.
Type:
Grant
Filed:
September 15, 1992
Date of Patent:
January 11, 1994
Assignee:
Dart Industries Inc.
Inventors:
Brian L. Aiken, Dominick Loscalzo, Anthony J. Barsanti
Abstract: A lunchbox including a wedge-shaped tray and a similarly configured wedge shaped cover positionable thereover in reversible end to end positions to form different internal space configurations. Latch assemblies locking the cover to the tray in each position. Both latch assemblies being completely disengageable. Alternatively, one latch assembly can remain engaged to define a hinge assembly for pivotal movement of the cover.
Type:
Grant
Filed:
May 21, 1992
Date of Patent:
April 27, 1993
Assignee:
Dart Industries Inc.
Inventors:
Victor J. J. Cautereels, Lee E. Fether, Ian Ferris