Abstract:
A window assembly having an internal propelling system is provided. A movable window unit within a frame of the window assembly is provided. Also provided is an internal propelling system comprising at least one piston and cylinder assembly mounted at least partially within the frame of the window assembly. The internal propelling system propels the movable window unit to a relatively open position upon activation of the system.
Abstract:
A control for a power-assist feature for an hydraulic closer is driven by structure mounted on the pinion shaft of the closer. It includes a pump-activating arm slidably mounted on the shaft, the end of the arm adapted to cover a pump-on sensor when the door is `bumped`. It also includes a follower rotatably mounted near the pinion and engageable escapement-fashion by a wheel in friction fit on the pinion shaft, the follower carrying a pump-deactivating arm, the end of the latter arm adapted to move away from a pump-off sensor when the door opens to its preset limit.