Diagrammatic indicator plate assembly

Details Diagrammatic indicator plate assembly Diagrammatic indicator plate assembly

1992-08-13

1993-10-26

Brittain, James R.

Card, picture, or sign exhibiting

Display device with free article movement

G09F 1900

Patent

active

052554600

ABSTRACT:
A diagrammatic indicator assembly includes a hollow, transparent housing which is substantially Z-shaped in side view with upper and lower terminal portions interconnected by an angled central portion. Each of the terminal portions define reservoirs adapted to carry a sandy medium stored within the housing. An inclined plate is mounted within the housing and includes opposing sides provided with a plurality of holes for retaining some of the sandy medium as it flows thereover. The housing can be orientated in a first upright position wherein the sandy medium flows over and is retained in the holes on one side of the plate and an inverted, upright position wherein the sandy medium flows over and is retained in the holes on the other side of the plate.

REFERENCES:
patent: 690852 (1902-01-01), Gordon
patent: 3564740 (1971-02-01), Calfee
patent: 4885192 (1989-12-01), Tabar
patent: 5092064 (1992-03-01), Lee

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