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| Number | Title | Issue Date |
| 7861432 | Method and apparatus for hole measurement A method and apparatus for measuring hole parameters by using a probe signal have been disclosed. ... | 01/04/2011 |
| 7856730 | Internal diameter measurement device The internal diameter measurement device is inserted into a cavity to measure its internal diameter. The internal diameter measurement device includes: a tubular sheath inserted into the cavity; a balloon which is provided on a distal end portion of the sheath, and ... | 12/28/2010 |
| 7231277 | Surface shape determining device for a machining apparatus and surface shape determining method In a state of separating a front end face of an air injecting nozzle 23 from a worked work W by a predetermined interval h, the air injecting nozzle 23 is moved at a constant speed in an X axis direction, injects air from an injecting hole 27... | 06/12/2007 |
| 7228972 | Short bar separation and recovery system and method A system and method are disclosed for separating and recovering short bars from full length bars in a rolling mill. The bars are initially conveyed on a run-out roller table from a shear to a transfer station where they are accumulated in a layer. The layer is trans... | 06/12/2007 |
| 7165609 | Apparatus for handling tubular goods An apparatus for handling tubular goods which includes an elongate tubular body having a peripheral sidewall and opposed ends. The peripheral sidewall has a plurality of axial slots arranged circumferentially around the tubular body parallel to an axis of the tubula... | 01/23/2007 |
| 7107695 | Device and process for profile measurement A hand-operated feeler includes a rod on a crossed movement table mounted on a support fitted with an immobilization device at a fixed reference as compared to the part to be measured and a processing unit configured to store and process the results. Such a device r... | 09/19/2006 |
| 6996913 | Circumferential measurement of tubular members An apparatus and method are provided for circumferentially measuring cross-sectional characteristics of a tubular member. The apparatus includes first and second template members that cooperably define an aperture for receiving the tubular member. At least one of th... | 02/14/2006 |
| 6931748 | Riser and tubular inspection systems A system for measuring inner diameter of a tubular, e.g., but not limited to, a riser or a pipe, the system including at least one linear distance measuring device movable through a hollow tubular, a main body also movable through said tubular, the at least one line... | 08/23/2005 |
| 6901797 | Method and instrument for gauging a workpiece An instrument is adapted to be attached to a rotational member of an instrument station for obtaining information about a workpiece. The instrument includes at least one orifice adapted to be placed in selective fluid communication with a source of fluid. An instrum... | 06/07/2005 |
| 6006437 | Plug gauge for checking geometric features of parts with rotational symmetry A plug gauge for checking shape errors, in particular, the roundness of a valve seat. The plug gauge comprises seating surfaces adapted for cooperating with the surface of the valve seat, and a pneumatic circuit with an annular nozzle at the seating surfa... | 12/28/1999 |
| 5653037 | Apparatus and method for measurement of tapped hole A tapped hole measuring apparatus available for automatically measuring the major diameter, minor diameter, effective diameter and depth of a tapped hole. The apparatus comprises a measuring stylus with at least two air discharging ports which can take in... | 08/05/1997 |
| 5619803 | Pneumatic measurement plug The plug comprises an elongate member and at least one measurement ring mounted with radial play on the elongate member and comprising at least one pair of diametrically opposite measurement nozzles fed with gas under pressure, and also at least three cen... | 04/15/1997 |
| 4852262 | Gauge for in situ measurement of borehole diameter A gauge for measuring in situ the diameter of a borehole in salt or other ft creeping rock types is provided so that changes in borehole structure can be detected. The gauge comprises a cylindrical body insertable lengthwise into a borehole and having an ... | 08/01/1989 |
| 4477977 | Method and apparatus involving the measurement of bores A method and apparatus for non-destructively measuring the internal volume and nominal diameter of cylindrical or substantially cylindrical bores. The apparatus includes an expander with an expandable outer skin, the expander is configured to be inserted ... | 10/23/1984 |
| 4320579 | Calipering tool A calipering tool for use in a pipe and having a body and feeler means mounted with the body for engaging the surfaces of the pipe being calipered and with feelers moving in response to variations in the surface of the pipe, the improvement residing in me... | 03/23/1982 |
| 4307514 | Bore diameter measurement gage An apparatus for measuring the bore diameter of a hollow member whose bore diameter can change in the axial direction. The bore diameter measuring apparatus includes a probe portion, means for inserting the probe portion in the bore, and means for convert... | 12/29/1981 |
| 4071958 | Device for inspecting inner diameter and bending of pipe The present invention discloses a device for automatically inspecting the acceptability of the inner diameter and bending of pipes of the type in which a cylindrical gage is inserted and forced to pass through the pipe to be inspected under the driving fo... | 02/07/1978 |
