Abstract: Disclosed is a security device for securement to a door in association with a latch mechanism having a face plate and knob to selectively prevent unauthorized turning of the latch mechanism and knob. The device includes a plate for securement to the door in association with the face plate of the latch mechanism. A hood element selectively prevents rotation of the latch knob, the hood element being reciprocable relative to the plate means into and out of engagement with the latch knob. The plate and the hood element preventing rotation include cooperating locking mechanisms when the hood element is brought into contact with the latch knob. There is also a release mechanism for releasing the locking mechanisms. Preferably the locking mechanisms are of the pawl and ratchet type.

Abstract: The extendable arm of the present invention enables the drilling of holes and installation of fasteners in ceilings directly by an operator standing on the floor below the ceiling. The arm has a foot-actuated lever, a telescopic pole, and a tool cradle. The power or impact tool is mounted on the tool cradle and is brought into contact with the ceiling by depressing the foot-actuated lever which raises the telescopic pole and thereby the tool cradle. Means for remotely actuating the trigger of the impact tool are also disclosed.