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...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!

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Class 279/117 - Rack-and-pinion actuated


Subclass of Class 279 - Chucks or sockets
Definition: Devices wherein a pinion meshes with a rack on the jaw to
No. of patents: 5
Last issue date: 04/05/2005


NumberTitleIssue Date
6874790Device for rotating disc-shaped objects
A device for rotation of disc-shaped elements of different diameter, such as matrices for manufacturing audio and video discs. The device comprises a rotatable chuck (10) in which three arms (20) distributed evenly in the peripheral direction are pivot...
04/05/2005
6547258Opening and closing chuck
A chuck body has a first surface for fixing to a support body and a second surface opposite to the first surface, and the second surface of the chuck body is provided with a pair of chuck members for chucking a workpiece and a guide rail for guiding an op...
04/15/2003
4700957Power-operated chuck
A power-operated chuck that is provided with a plurality of clamping jaws that are disposed in a chuck body in such a way as to be radially movable. The radial clamping movement of the clamping jaws is produced by a gear mechanism disposed in the chuck bo...
10/20/1987
4693148Glassworking scroll chuck with interchangeable jaws
This invention provides a chuck for a glassworking lathe which includes a chuck body rotatable with a drive spindle nose about a longitudinal axis and a handwheel rotatable about the same longitudinal axis. A locking device is provided for releasably lock...
09/15/1987
4663203Adjustable candleholder
An improved adjustable candleholder (10) that allows candles of various diameters to be secured within the candleholder. The candleholder (10) is comprised of a base assembly (12) having an upper section (12a) and a lower section (12g), and a candleholder...
05/05/1987
 
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