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Class Information
Number: 269/52
Name: Work holders > Holder inserted within work aperture > Within concentric opening
Description: Device wherein the outer periphery of the portion of the work which engages the holder is substantially circular in cross-section and the center of the aperture in which the holder is inserted is disclosed as coinciding with the center of mass of such circular work portion.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7596843 |
Rotating internal support apparatus and method for large hollow structures |
Oct. 6, 2009 |
| 7107672 |
Method of mounting electronic parts on a flexible printed circuit board |
Sep. 19, 2006 |
| 6988719 |
Rollerstand |
Jan. 24, 2006 |
| 6874219 |
System, method, and apparatus for preventing rotation of a disk clamp while being assembled to the hub of a spindle motor in a hard disk drive and fastener centering features |
Apr. 5, 2005 |
| 6736385 |
Centering and clamping tool |
May. 18, 2004 |
| 6681897 |
Apparatus for supporting automotive tires |
Jan. 27, 2004 |
| 6668894 |
Film layer separation device for multi-layer disks |
Dec. 30, 2003 |
| 6604610 |
Apparatus for supporting automotive tires |
Aug. 12, 2003 |
| 6527863 |
Support device for a stent and a method of using the same to coat a stent |
Mar. 4, 2003 |
| 6279886 |
Power clamps |
Aug. 28, 2001 |
| 6105950 |
Retainer |
Aug. 22, 2000 |
| 6098272 |
System for maintaining concentricity of a combination of a top and bottom substrate during the assembly of a bonded storage disk |
Aug. 8, 2000 |
| 6086976 |
Semiconductor wafer, handling apparatus, and method |
Jul. 11, 2000 |
| 6047717 |
Mandrel device and method for hard disks |
Apr. 11, 2000 |
| 5954908 |
Developing storage disc boss |
Sep. 21, 1999 |
| 5952014 |
Apparatus for texturing magnetic data recording disc surfaces |
Sep. 14, 1999 |
| 5819412 |
Jig system for the manufacture of composite joists and method of manufacturing composite joists using jigs |
Oct. 13, 1998 |
| 5645117 |
Tompkins turner |
Jul. 8, 1997 |
| 5637200 |
Compact disk locking apparatus |
Jun. 10, 1997 |
| 5440949 |
Workpiece mandrel with axially moving dynamic balancer |
Aug. 15, 1995 |
| 5383652 |
Engine mounting and transportation apparatus |
Jan. 24, 1995 |
| 5292041 |
Adjustable elastic band inspecting apparatus |
Mar. 8, 1994 |
| 4940217 |
Lead frame conveying apparatus |
Jul. 10, 1990 |
| 4926538 |
Universal nest for a connector assembly tool |
May. 22, 1990 |
| 4852437 |
Method and apparatus for locating and clamping a workpiece, such as a piston, prior to rotating same in a machining operation |
Aug. 1, 1989 |
| 4852865 |
Holding device on a punch press |
Aug. 1, 1989 |
| 4809922 |
Clamping head for winding cores |
Mar. 7, 1989 |
| 4747607 |
Lobed chuck for saw regrinding |
May. 31, 1988 |
| 4732060 |
Clamp for bicycle crank bearing wrench |
Mar. 22, 1988 |
| 4708041 |
Lathe mounting apparatus |
Nov. 24, 1987 |
| 4684310 |
Wheel manipulator |
Aug. 4, 1987 |
| 4646419 |
Method for engaging a substrate |
Mar. 3, 1987 |
| 4638985 |
Sheet holding apparatus |
Jan. 27, 1987 |
| 4632373 |
Fixture |
Dec. 30, 1986 |
| 4624043 |
Quick release tool holder for robots |
Nov. 25, 1986 |
| 4545570 |
Gimbal fixture and assembly method |
Oct. 8, 1985 |
| 4520542 |
Hand operable tool used in installing piston assemblies into an engine block |
Jun. 4, 1985 |
| 4487110 |
Clamping element |
Dec. 11, 1984 |
| 4147405 |
Apparatus for aligning articles |
Apr. 3, 1979 |
| 4030184 |
Method for stripping windings from a stator |
Jun. 21, 1977 |
| 4016639 |
Apparatus and method for stripping windings from a stator |
Apr. 12, 1977 |
| 3948124 |
Apparatus and method for severing stator end turns |
Apr. 6, 1976 |
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