Disposable warning marker apparatus

Details Disposable warning marker apparatus Disposable warning marker apparatus

1987-10-13

1989-01-17

Epstein, Henry F.

Stock material or miscellaneous articles

Collapsible article

116 63C, 229116, 229185, 4285428, B65D 500

Patent

active

047987472

ABSTRACT:
A semi-finished sheet for making disposable warning marker devices is shown having three major side panels of trapezoidal configuration and a minor bottom panel of triangular configuration. The sheet is foldable along fold lines with tabs lockably received in mating slots to form a frusto pyramid structure open at the top to facilitate insertion of suitable weights to enhance stability.

REFERENCES:
patent: 490680 (1893-01-01), Roberts
patent: 550247 (1895-11-01), Buch
patent: 781082 (1905-01-01), Morris
patent: 1597757 (1926-08-01), Berger
patent: 1861206 (1932-05-01), Burgess
patent: 2167917 (1939-08-01), Vogt
patent: 2935238 (1960-05-01), Koehler
patent: 3885266 (1975-05-01), Nafziger
patent: 4084015 (1978-04-01), Patterson

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