Air vent

Details Air vent Air vent

1978-04-17

1979-11-06

Yuen, Henry C.

98 41R, 49 95, F24F 1308

Patent

active

041731751

ABSTRACT:
An air vent having a detachable front plate provided with apertures, a closure plate behind the front plate, an operating device for moving the closure plate toward and away from the front plate for blocking and unblocking and apertures, the operating device being connected to the closure plate by means of a slot and pin connection which allows the closure plate to be removed independently of the operating means.

REFERENCES:
patent: 2056224 (1936-10-01), Dart
patent: 2525371 (1950-10-01), Reynolds, Sr.
patent: 2717064 (1955-09-01), Hock
patent: 2792771 (1957-05-01), Burwen
patent: 2814242 (1957-11-01), Marini et al.
patent: 2936692 (1960-05-01), White
patent: 3528359 (1970-09-01), Sand
patent: 3752223 (1973-08-01), Finch

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