Door check device
OwnerGunter Stoffregeninventor
Life of this patent
Estimating the term…
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.
Claims12
A latching device, for attachment to a door check unit having a cylinder and a piston with a piston rod, and serving releasably to secure a door in an open position, comprising:
- a lever transversely disposable on the piston rod and freely slidable therealong, the lever being tiltable in the plane of the piston rod in one direction for releasable locking engagement therewith;
- and
- cam and follower means engaging the lever and actuable from pre-set position to tilt the lever into locking engagement with the pistion rod when the door is opened beyond a predetermined limit and then released, the cam and follower means being returnable to said pre-set position on release of the lever from locking engagement with the piston rod.
Dependencies are inferred from the claim text.