Demountable stick

Details Demountable stick Demountable stick

1974-08-21

1976-06-15

Schroeder, Werner H.

Tent, canopy, umbrella, or cane

Umbrella

Retainers

52108, 52632, 135 15PQ, 135 46T, 135 47, 280 1137F, 403109, A45B 900

Patent

active

039630374

ABSTRACT:
A lecturer's pointer, or a blind man's stick, is demountable into sections for easy stowing, but the sections cannot be separated since they are permanently connected by an axial cord. Pulling the cord without further guidance, causes the sections to join at spigot and socket joints, designed to minimize shake without binding. The cord is inherently elastic or is sprung and is put in tension to hold the joints rigid by a device on the head of the stick.

REFERENCES:
patent: 2705015 (1955-03-01), Langlais
patent: 2890073 (1959-06-01), Thomas
patent: 2947557 (1960-08-01), Schwab et al.
patent: 3669133 (1972-06-01), Hyman
patent: 3730544 (1973-05-01), Hyman

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