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| Number | Title | Issue Date |
| 7350309 | Extendable spacer device A spacer device for laser-optical measurement of hollow cylinders has at least two, preferably three arms which are coupled or interlaced with one another and which can be moved relative to one another. Each of the arms has a measurement roller on one end which is b... | 04/01/2008 |
| 7191537 | Method and apparatus for locating the center of a circle A method and apparatus that will locate the center of a circle in a single operation by positioning two points of registration at the edge of the circle relative to a third point of registration previously set at the edge of the circle where these points are held in... | 03/20/2007 |
| 7143522 | Drop-in bore gauge apparatus for female articulated connector An apparatus for measuring wear and specified dimensions and aiding in the method of reconditioning of articulated connectors is disclosed. The apparatus is a drop-in bore gauge with a handle, a flange and at least one elongated fin for insertion into the bore of th... | 12/05/2006 |
| 6079113 | Electronic radius gauge An electronic radius gauge including a base with an inverted U-shaped configuration having a horizontal top post, a pair of side posts each coupled to opposite ends of the top post and depending therefrom, and a vertically oriented bore centrally formed i... | 06/27/2000 |
| 4977682 | Hand held ovality gauge An ovality gauge includes an elongated frame member carrying a roller support arm having a pair of rollers rotatably mounted to the roller support arm and spaced apart from each other. Preferably the rollers are adjustable to various positions. The ovalit... | 12/18/1990 |
| 4559710 | Method of checking pallets or articles to be worked by automatically measuring average diameter of hole and apparatus for practicing same The magnitude of a gap between each of three points on the inside circumferential surface of a reference hole of a reference hole block mounted on a pallet or each of three points on the inside circumferential surface of a hole of an article to be worked ... | 12/24/1985 |
| 4536963 | Digital indication type measuring machine A digital indication type measuring machine comprising: a main body having a spindle displaceable in the axial direction thereof and a digital indication portion; a plurality of measuring heads detachably mounted to the main body, being different in size ... | 08/27/1985 |
| 4473956 | Bore-measuring apparatus The apparatus comprises a body (1) provided with three point-contact feelers (12, 13) which open under the action of a spring (19) and close under the action of a lever (20) via a rod (14) and a spacer stop (15). A displacement pick-up (22) and an electro... | 10/02/1984 |
| 4385446 | Pistol-grip instrument for measurement of inside diameters The measurement feelers (15) are operated by a movable member consisting of a rod (17) which is movable axially and upon which can slide a cylinder (11a) subjected to the action of a main spring (13) which forces it towards its position of bearing against... | 05/31/1983 |
| 4058901 | Plug gage A measurement instrument in the form of a plug gage comprises a tubular body within which there is centered an axially movable rod, one end of which is intended to transmit the axial movements of said rod to a transducer system connected to the tubular bo... | 11/22/1977 |
| 3995374 | Small internal diameter bore gauge A small diameter bore gauge or the like includes a probe having sensor means at one end and a plurality of longitudinally extending resiliently hinged fingers at the other end. A plunger extends along the probe and is connected to the sensor. Wedge cam me... | 12/07/1976 |
