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Class Information
Number: 33/550
Name: Geometrical instruments > Gauge > With support for gauged article > Concentricity
Description: Subject matter wherein the article has an external surface having an axis of symmetry and the contact member contacts points on the external surface to determine whether the points are at the same distance from the axis or not.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7458168 |
Concentricity measuring apparatus and method, squareness measuring apparatus and method, and concentricity-squareness measuring apparatus and method |
Dec. 2, 2008 |
| 7412778 |
Apparatus for dimensional and/or geometric checking of mechanical parts |
Aug. 19, 2008 |
| 7392595 |
Device for measuring the roundness of a railroad wheel |
Jul. 1, 2008 |
| 7356938 |
Bore gauge apparatus for use in reconditioning articulated connector |
Apr. 15, 2008 |
| 7325324 |
Method for the in-process dimensional checking of orbitally rotating crankpins |
Feb. 5, 2008 |
| 7310890 |
Apparatus for automatically measuring external and internal profile of a pipe at the end thereof |
Dec. 25, 2007 |
| 7290348 |
Device for measuring circularity and cylindrical shape |
Nov. 6, 2007 |
| 7267018 |
Steering lock system inspection device |
Sep. 11, 2007 |
| 7137210 |
Measuring head |
Nov. 21, 2006 |
| 7100265 |
Method for aligning a drum assembly used in a video recording device |
Sep. 5, 2006 |
| 7086169 |
Method and apparatus for best fitting two or more items |
Aug. 8, 2006 |
| 7043851 |
Adjustable V-block |
May. 16, 2006 |
| 7024785 |
Method for the in-process dimensional checking of orbitally rotating crankpins |
Apr. 11, 2006 |
| 7020974 |
Apparatus for checking the dimensional and geometric features of pins |
Apr. 4, 2006 |
| 6996913 |
Circumferential measurement of tubular members |
Feb. 14, 2006 |
| 6954991 |
Method and apparatus for measuring shape of tubular body |
Oct. 18, 2005 |
| 6901676 |
Eccentric bushing inspection device |
Jun. 7, 2005 |
| 6889541 |
Apparatus for measuring bore distortion of a cylinder block |
May. 10, 2005 |
| 6886264 |
Reference fixture for roundness measuring instrument |
May. 3, 2005 |
| 6883242 |
Method and apparatus for aligning a drum assembly used in a video recording device |
Apr. 26, 2005 |
| 6871416 |
Eccentricity and wobble sensing device |
Mar. 29, 2005 |
| 6868618 |
Gauge and method |
Mar. 22, 2005 |
| 6817109 |
Apparatus and method for measuring circularity of circular parts |
Nov. 16, 2004 |
| 6810593 |
Method of improving RRO of wheel rim |
Nov. 2, 2004 |
| 6718645 |
Measuring tool and adjusting tool for ammunition |
Apr. 13, 2004 |
| 6711829 |
Method for measuring work portion and machining method |
Mar. 30, 2004 |
| 6690991 |
Machine control gage system performing roundness measuring function |
Feb. 10, 2004 |
| 6684517 |
Device for determining geometrical defects in a vehicle wheel |
Feb. 3, 2004 |
| 6678965 |
Method and apparatus for aligning a drum assembly used in a video recording device |
Jan. 20, 2004 |
| 6588120 |
Method and apparatus for aligning a drum assembly used in a video recording device |
Jul. 8, 2003 |
| 6568096 |
Device and method for measuring shape deviations of a cylindrical workpiece and correcting steadying element and correcting follower for use therewith |
May. 27, 2003 |
| 6526671 |
Adapter for checking the angular alignment of a roller which is to be precisely supported |
Mar. 4, 2003 |
| 6463669 |
Apparatus for checking the shape of a part |
Oct. 15, 2002 |
| 6357129 |
Optical non-contacting cylindricity gauge |
Mar. 19, 2002 |
| 6330753 |
Gauge for measuring large diameter |
Dec. 18, 2001 |
| 6327788 |
Surface form measurement |
Dec. 11, 2001 |
| 6278520 |
Method and device for measuring parts |
Aug. 21, 2001 |
| 6272762 |
Ovality measurement method and apparatus |
Aug. 14, 2001 |
| 6092411 |
Roundness measuring instrument and measuring head calibration method therefor |
Jul. 25, 2000 |
| 6088924 |
Machine for grinding a cylindrical piece in orbital motion |
Jul. 18, 2000 |
| 6085429 |
Optical disc spindle straightness testing apparatus and method |
Jul. 11, 2000 |
| 6085430 |
Apparatus and method for measuring eccentricity between two circular members |
Jul. 11, 2000 |
| 5888150 |
Golf ball |
Mar. 30, 1999 |
| 5774997 |
Golf ball out-of-round indicator |
Jul. 7, 1998 |
| 5761821 |
Gauging the diameter of eccentric cylindrical workpiece parts |
Jun. 9, 1998 |
| 5640778 |
Apparatus and a method for measuring the curvature radii of spherical and cylindrical surfaces |
Jun. 24, 1997 |
| 5539992 |
Fixture for alignment of vacuum nozzles on semiconductor manufacturing equipment |
Jul. 30, 1996 |
| 5433013 |
Fixture for alignment of vacuum nozzles on semiconductor manufacturing equipment |
Jul. 18, 1995 |
| 5419056 |
Centerless gaging apparatus for checking the concentricity and straightness of shank-type tools and the like |
May. 30, 1995 |
| 5359784 |
Method of centering in roundness measuring instrument and system therefor |
Nov. 1, 1994 |
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