Abstract: A main body formed generally as a hollow cylinder has an open end sized to receive a chuck head into the main body. An outer shell formed generally as a hollow cylinder is mounted to the main body. A gear drive assembly is mounted to the main body and engaged with the face gear of the chuck. The outer shell is selectively manually engagable with the outer shell via a the gear drive assembly such that rotating the chuck head opens or closes the jaws of the chuck, depending upon the direction of rotation. The outer shell has a free wheeling position in which a person may grasp the outer shell and hold it to guide the drill without causing the chuck jaws to tend to open or close.

Abstract: A keyless chuck operating system comprises a hollow, generally cylindrical body formed of rubber or other similar substance preferably having a shore hardness in the range of 50 to 60. The body has a central cavity therein formed to fit firmly over a chuck locking drum. Tightening the jaws is accomplished by adjusting the drill for ordinary drilling with a right handed bit, firmly grasping the outer periphery of the chuck operating device, and then turning on the drill. Loosening the chuck jaws is done in a manner similar to tightening them except that the drill is adjusted to reverse the direction of rotation. The chuck actuation may include a plurality of gripping beads in the passage that receives the chuck body for gripping the chuck when the rotary tool is actuated. The outer periphery of the chuck operating device preferably has a plurality of indentations thereon to facilitate manual gripping of the device.

Abstract: A keyless chuck operating device comprises a hollow, generally cylindrical body formed of rubber or other similar substance preferably having a shore hardness in the range of 50 to 60. The body has a central cavity therein formed to fit firmly over a chuck locking drum. Tightening the jaws is accomplished by adjusting the drill for ordinary drilling with a right handed bit, firmly grasping the outer periphery of the chuck operating device, and then turning on the drill. Loosening the chuck jaws is done in a manner similar to tightening them except that the drill is adjusted to reverse the direction of rotation. The chuck actuation may include a plurality of gripping beads in the passage that receives the chuck body for gripping the chuck when the rotary tool is actuated. The outer periphery of the chuck operating device preferably has a plurality of indentations thereon to facilitate manual gripping of the device.

Abstract: A nail dryer includes a clamshell shaped base for resting the user's hand thereon. A C-shaped heating member is attached to the perimeter of the base by rib braces. The member includes two separated C-shaped channels housing a rope heater. The ribs form segmented air slots between the base and the channels. A clamshell shaped cover fits over the base and the C-shaped heating member. The closed cover forms an air chamber. The channels also have air induction vents below the heater for allowing outside air to pass by the heater and then to enter the air chamber. Air also enters via the air slots and is heated as it flows by the two channels. The hot air entering the air chamber is deflected by baffles. The wet fingernails are positioned in the chamber, and the hot air flow rapidly bakes the polish. The hot air vents at the cutaway rear of the cover. The stepped fashion of the rope heater and the two channels influence the air flow and currents in the chamber.

Abstract: A guide tube means for assisting in the fixation of an electrode to the heart of a patient, with the guide tube means being adapted for releasable retention of the electrode and its associated leads, the guide tube means including a lead-retaining sleeve along with a rod means for controllably dislodging the leads from the sleeve. The rod means includes means for releasably retaining the insulative backing or pad for the electrode, and is further provided with a radially extending ear for dislodging the electrode lead from the sleeve upon withdrawal of the rod means from the sleeve, thereby providing for the formation of a slack loop or segment adjacent the site of the electrode, the slack portion permitting relative motion to occur between the end of the guide tube and the electrode as fixed in position.