Retractable tool-free window frame

Details Retractable tool-free window frame Retractable tool-free window frame

1988-12-28

1989-08-15

Scherbel, David A.

Static structures (e.g., buildings)

Facer held by stiffener-type frame

Facer attached between exposed frame members

E04B 160

Patent

active

048562556

ABSTRACT:
An H-shaped main frame with a blade slidably retained in its upper part. The main frame is divided into an upper and a lower compartment by a partition plate which extends between the two vertical side walls of the H-shaped main frame. A part of the blade projects out of the main frame to form a section of window frame. Posts on the lower part of the blade are springloaded to make the blade normally project out from the upper compartment of the main frame. Retention rings are fixed to each of the posts to prevent them from extending out of the main frame. Alignment rails on the blade are slidably retained by corresponding alignment channels on the main frame.

REFERENCES:
patent: 2166361 (1939-07-01), Lowry
patent: 3090085 (1963-05-01), Brown
patent: 3212225 (1965-09-01), Neal

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