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...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."

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Class 451/21 - Tool wear compensation


Subclass of Class 451 - Abrading
Definition: Subject matter comprising means to make allowance for the
No. of applications: 10
Last issue date: 07/23/2009


Application No.Application TitleIssue Date
20090186558GRINDING METHOD, GRINDING DEVICE AND ELECTRODE THEREFOR
A grinding device including a multi-wheel grindstone and an electrode arranged opposite to a grinding action surface of the multi-wheel grindstone with an interval, in which a work is ground and machined while the grinding action surface of the multi-wheel grindstone is...
07/23/2009
20080242195CMP SYSTEM HAVING AN EDDY CURRENT SENSOR OF REDUCED HEIGHT
By providing an eddy current sensor element in a polishing tool at a reduced height level in combination with a corresponding optical endpoint detection system, standard polishing pads may be used, thereby enhancing the lifetime of the polishing pad and increasing tool ...
10/02/2008
20080220697Machine Including Grinding Wheel and Wheel Dresser
Disclosed are a machine with a grinding wheel and a dressing surface and related method. The dressing surface is movable in at least two axes of translation relative to the grinding wheel. The rotational speed of the grinding wheel and dressing surface preferably are un...
09/11/2008
20070099548Grinding wheel for roll grinding application and method of roll grinding thereof
Iron and steel rolls are ground to production quality requirements with a grinding wheel that requires minimal wheel wear compensation, profile error compensation or taper error compensation during the grinding process. The grinding wheel consists essentially of a super...
05/03/2007
20060205324Systems and methods for actuating end effectors to condition polishing pads used for polishing microfeature workpieces
Systems and methods for activating end effectors used to condition microfeature workpiece polishing pads are disclosed. A system in accordance with one embodiment of the invention includes a rotatable end effector having a conditioning surface configured to condition a ...
09/14/2006
20060099885Wear indication apparatus and method
Apparatus and method for monitoring the wear of a downhole tool, and providing indication of the degree of wear to an operator at the well surface. A pressurized fluid path within the cutting element matrix can exhibit a pressure drop when wear of the matrix progresses ...
05/11/2006
20060068686Track supported bore finishing device
A bore honing device comprising a support assembly including first and second end support elements connected by a base support which supports an axial guide track. A trolley engaging with the guide track and the trolley being movable along the guide track for guide move...
03/30/2006
20050272349METHOD FOR CONDITIONING SUPERABRASIVE TOOLS
A method for conditioning a superabrasive grinding tool having a cutting surface includes truing the grinding tool by moving the cutting surface against a truing device to shape the cutting surface into a preselected profile, and subsequently moving the cutting surface ...
12/08/2005
20050026550Grinder with adjustable tool rest
A grinding tool with a toll rest includes an adjustment mechanism to adjust the position of the tool rest responsive to wear of the grinding wheel. ...
02/03/2005
20050003739Grinding machine, in particular centerless cylindrical grinding machine
A grinding machine, in particular a centerless cylindrical grinding machine, comprising: a supporting table, at least one wheel disposed on at least one wheel carriage, a device for holding a workpiece to be machined, the wheel carriage being movable in each case in a c...
01/06/2005
 
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