Title: Door check device

Abstract: A releasable latch, for attachment to a door check unit having a cylinder and a piston, and serving releasably to secure a door in an open position. A lever is freely slidable along the rod of the piston and is tiltable on the rod for releasable locking engagement. A cam and follower are actuable from a pre-set position to tilt the lever into locking engagement when the door is opened beyond a predetermined limit and then released. On release of the lever from locking engagement with the piston rod the cam and follower are returned to their pre-set position.

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Inventors: Stoffregen, Gunter

Application Number: 928184
Filing Date: 1978-07-26
Publication_date: 1980-03-25
Assignee:
Primary Class(es): 16/52 16/66, 16/84, 16/DIG17, 292/278, 292/306, 292/DIG4
Other Classes:
US Patent Ref:

984594	Feb, 1911	O'Rourke	292/278.
2051969	Aug, 1936	Shastock	292/306.
2923026	Feb, 1960	Nack	16/49.
3105264	Oct, 1963	Truhon	16/DIG.
3161909	Dec, 1964	Strauss	16/49.
3162889	Dec, 1964	Runnels	16/66.
3561036	Feb, 1971	Crane	16/49.
3909877	Oct, 1975	Christy et al.	16/49.

Other Refs: 22818 of

, 1912	GB

Primary Examiner: Byers, Jr., Nile C.
Assistant Examiner: Cohen, Moshe I.
Attorney: