Title: Safety vent

Abstract: A safety vent preferably for use in a high rise building for permitting the escape of smoke and fumes and comprising a fixed frame accommodated by an opening in the building, a movable frame pivotally secured to the fixed frame and means for biasing the movable frame to an open position. In the preferred embodiment the movable frame includes panel means and pivots at its lower end. A latch mechanism maintains the movable frame in a closed position while a release mechanism, operated either electrically or pneumatically, can be energized to permit opening of the vent. Limiting means in the form of shock absorbers or snubbers interconnect between frames for limiting the open position of the vent.

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Inventors: Jentoft, Arthur P. (Kennebunkport, ME, US)
Couture, Paul A. (Emery Mills, ME, US)

Application Number: 949637
Filing Date: 1978-10-10
Publication_date: 1980-06-24
Assignee: Wasco Products, Inc. (Sanford, ME)
Primary Class(es): 49/379 49/384, 49/386, 292/201, 292/341.17
Other Classes:
US Patent Ref:

1180814	Apr, 1916	Ziganek	292/341.
2047401	Jul, 1936	Whitted	49/379.
2604789	Jul, 1952	Derby et al.	40/379.
2800348	Jul, 1957	Parsley	49/379.
3045464	Jul, 1962	Braginetz	292/341.
3399500	Sep, 1968	Shapiro	49/379.
3792556	Feb, 1974	Anghinetti et al.	49/379.
3903661	Sep, 1975	Gobel	49/386.
3964207	Jun, 1976	Peterson	49/394.

Other Refs:
Primary Examiner: Kannan, Philip C.
Assistant Examiner:
Attorney: Wolf, Greenfield & Sacks