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Class 74/840 - ROTARY DRIVEN DEVICE ADJUSTABLE DURING OPERATION RELATIVE TO ITS SUPPORTING STRUCTURE


Subclass of Class 74 - Machine element or mechanism
Definition: Mechanisms comprising means to drive a load device in a
No. of patents: 7
Last issue date: 09/25/2007


NumberTitleIssue Date
7274805Method of driving surveillance camera by using rotary electric machine
There is no surveillance camera system optimum for monitoring an important monitor place by a surveillance camera mainly for crime prevention day and night without humans in attendance, which can automatically monitor the place without humans in attendance and, when...
09/25/2007
5016493Variable speed gearing assembly
A mechanical transmission device to provide selective gear speed output from a constant input. A variation gear affixed to an adjustable crank determines output speed of a free floating following gear and connecting rod assembly dependent on the relative ...
05/21/1991
4974510Drive for multi-color rotary sheet printing machine
A drive for a printing machine with a plurality of printing mechanisms has a closed gear train arranged to connect the printing mechanisms with each other, a drive train extending parallel to the gear train and elastically connected with the latter by at ...
12/04/1990
4433508Automobile window regulator
An automobile window regulator for lowering and lifting an automobile window comprises an outwardly threaded cylindrical roller meshing with an inner thread of a rigid guide member secured to an automobile door. The roller is rotatably mounted in a movabl...
02/28/1984
4431063Drive mechanism for drill
A drive mechanism for a drill provides both rotational drive and axial feed for a drill of substantial diameter such as those used to drill holes for roof bolts in mine shafts. A plurality of sprockets carry two chains of drive links which interlock aroun...
02/14/1984
4429753Rotary pull down pull up drive for drill pipes
A gear drive used in water well drilling or blast hole drilling to remove overburden in open pit coal mining, not only rotates the drill pipe but also pulls down or pulls out the drill pipe as it rotates. A hydraulic motor within a housing operates a firs...
02/07/1984
4151760Apparatus for rotating multiply-mounted shafting
An apparatus for rotating multiply-mounted shafting, comprising a rotational device for the continuous rotation of the shafting at a first rotational speed and an auxiliary rotational device for the continuous or intermittent rotation of the shafting at a...
05/01/1979
 
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