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Class Information
Number: 451/180
Name: Abrading > Machine > Rotary tool > Rotary cylinder > Internal
Description: Abrading machine in which the abrading is done by the radially inwardly facing peripheral face.

Sub-classes under this class:

Class Number Class Name Patents
451/181 Abrading crank-pin 6

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
4420909 Wafering system Dec. 20, 1983
4233783 Device particularly useful for cutting or grinding round girdles of gems Nov. 18, 1980
4228782 System for regulating the applied blade-to-boule force during the slicing of wafers Oct. 21, 1980
4209005 Apparatus for cutting silicon having a pivoted work carriage utilizing an air bearing Jun. 24, 1980
4205493 Portable chamfering grinding device Jun. 3, 1980
4151826 Hydraulic tensioning seal May. 1, 1979
4150912 Twin blade mounting and tensioning apparatus Apr. 24, 1979
4135499 Sealing piston Jan. 23, 1979
4116095 Metal sawing or milling machine Sep. 26, 1978
4112624 Grinding machine Sep. 12, 1978
4084354 Process for slicing boules of single crystal material Apr. 18, 1978
4063471 Method of grinding the teeth of a circular saw to an improved contour Dec. 20, 1977
4063482 Machine tool indexing mechanism Dec. 20, 1977
4050487 Electric sharpener Sep. 27, 1977
3964349 Method and apparatus for grinding the teeth of a circular saw to an improved contour Jun. 22, 1976
3936980 Method of and apparatus for grinding wire Feb. 10, 1976

1 2 3

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