Expandable door

Details Expandable door Expandable door

1976-12-23

1978-09-19

Caun, Peter M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Movably interconnected

160197, 160202, E06B 900, E06B 312

Patent

active

041146743

ABSTRACT:
An expandable door features vertically telescoping door sections, having flexible wire guides to insure engagement of the door sections during raising and lowering operations, with a minimum of physical contact and force exerted between adjacent sections. The wire guides are uniquely shaped to assure engagement of the door sections, even when said sections become misaligned; this unique shape also allows ease of constructions and repair. The door sections may be either generally U-shaped or L-shaped, and nest one within the other when the door is opened.

REFERENCES:
patent: 1598471 (1926-08-01), Williams
patent: 2057850 (1936-10-01), Sims
patent: 2891616 (1959-06-01), Nelson

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