Hopper window

Details Hopper window Hopper window

1995-08-07

1996-11-19

Dorner, Kenneth J.

Movable or removable closures

Mounted for multidirectional or oblique movement

Swings on plural axes; e.g., pivotal link arms

49250, E05D 1528

Patent

active

055751148

ABSTRACT:
A sash of a hopper window is linked to a shoe which engages a track in constant resistance to travel along the track such that the sash can be tilted by hand to any angle from the track within a predetermined range of angles, and will remain at the angle unaided.

REFERENCES:
patent: 1388121 (1921-08-01), Porter
patent: 1696607 (1928-12-01), Hysert
patent: 1760072 (1930-05-01), Lea
patent: 1832058 (1931-11-01), Stewart
patent: 1919371 (1933-07-01), Klemm
patent: 2027240 (1936-01-01), Looney
patent: 2266076 (1941-12-01), Reynolds
patent: 2796639 (1957-06-01), Reynolds

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