Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 8024868 | Wall contact caliper instruments for use in a drill string A drill string caliper includes a mandrel configured to be coupled within a drill string. At least one laterally extensible arm is coupled to an exterior of the mandrel. A biasing device is configured to urge the at least one arm into contact with a wall of a wellbo... | 09/27/2011 |
| 7421914 | Caliper apparatus The present invention generally relates to an apparatus and method for detecting the physical condition of a tubular. In one aspect, an apparatus for use in a tubular is provided. The apparatus includes a body and a drive member for urging the apparatus through the ... | 09/09/2008 |
| 7279677 | Measuring wellbore diameter with an LWD instrument using compton and photoelectric effects A method for determining the diameter of a wellbore, the wellbore being drilled by a drill string immersed in weighted mud, the weighted mud having a significant weight fraction of a heavy component. A well logging instrument having a gamma ray source and energy-sen... | 10/09/2007 |
| 7225881 | Passive logging sonde auger tool The auger is attached to a spiral gear and a spring, the apparatus then being connected to the downhole, leading end of the logging sonde. When the auger nose of the modified sonde assembly strikes any of various obstructions on the sidewall that cause it to lose mo... | 06/05/2007 |
| 7188672 | Well string assembly A well string assembly includes an upper tubular well string part having upper and lower ends between which there is formed a passageway, a lower well string part having upper and lower ends, which lower end is spaced apart from the lower end of the upper well strin... | 03/13/2007 |
| 7178418 | Segment of a sensor-supporting element for a scraper-type device Disclosed is a segment (15) of a sensor-supporting element for a scraper-type device, which comprises at least two pairs of runners (16a, 16b) that are arranged essentially parallel behind each other. A support plate (20) re... | 02/20/2007 |
| 7178627 | Methods for use in detecting seismic waves in a borehole The invention provides methods and apparatus for detecting seismic waves propagating through a subterranean formation surrounding a borehole. In a first embodiment, a sensor module uses the rotation of bogey wheels to extend and retract a sensor package for selectiv... | 02/20/2007 |
| 7143659 | Pipe-inspection system A pipe-inspection system (100) is provided. The system (100) is made up of a transmission cluster (104) incorporating a transmission unit (800) between first and second wheeled guidance units (400), and a reception cluster (104 | 12/05/2006 |
| 7134219 | Fiber optic gap gauge A lightweight, small size, high sensitivity gauge for indirectly measuring displacement or absolute gap width by measuring axial strain in an orthogonal direction to the displacement/gap width. The gap gauge includes a preferably titanium base having a central tensi... | 11/14/2006 |
| 7131210 | Borehole caliper tool A borehole caliper tool includes a tool body and an arm coupled to the tool body. The arm is deflectable relative to the tool body. The caliper tool further includes a cam coupled to the arm such that a position of the cam changes as the arm deflects. The caliper to... | 11/07/2006 |
| 7069775 | Borehole caliper tool using ultrasonic transducer A borehole caliper tool includes a tool body, a bow spring flexibly coupled to the tool body, a target coupled to the bow spring, and an ultrasonic transducer coupled to the tool body, wherein in operation the ultrasonic transducer transmits an acoustic pulse to the... | 07/04/2006 |
| 7048089 | Methods and apparatus for use in detecting seismic waves in a borehole The invention provides methods and apparatus for detecting seismic waves propagating through a subterranean formation surrounding a borehole. In a first embodiment, a sensor module uses the rotation of bogey wheels to extend and retract a sensor package for selectiv... | 05/23/2006 |
| 7007396 | Replacement heart valve sizing device A heart valve sizing system featuring a lumen advanceable in vasculature, an inside caliper device at the distal end of the lumen, and a readout for reading the dimension gauged by the inside caliper device. In the preferred embodiment, the inside caliper device inc... | 03/07/2006 |
| 6964207 | Deflection measurement device for flexible piping A mechanical inspection sled which can be pushed through a pipeline using a series of connecting rigid rods. Mechanical measuring devices are mounted on the sled. These devices deflect when the pipe's internal diameter decreases. The deflection is visually observabl... | 11/15/2005 |
| 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 |
| 6647637 | Use of magneto-resistive sensors for borehole logging A downhole caliper instrument utilizing a linear or arcuate magneto resistive sensor to determine the position of one or more caliper arms which extend from a carrier tool to touch the surface of a borehole wall. A processor and firmware are included to c... | 11/18/2003 |
| 6560889 | Use of magneto-resistive sensors for borehole logging A downhole caliper instrument utilizing a magneto resistive sensor to determine the position of a caliper arm which extends to touch the surface of the borehole wall.... | 05/13/2003 |
| 6003237 | Semiautomated method for swaged coupling process verification A semiautomated method and system (30) for swaged coupling process verification are provided. The system nondestructively measures swage groove depth (A) of a swaged coupling (10) for a tube (20). The tube has an inner surface with a first inside diameter... | 12/21/1999 |
| 5539986 | Device and method for remote sensing of rock movements in mines A device and method for remotely measuring movement between opposed walls in dangerous situations such as unstable mining excavations is described. A spring loaded telescopic pole which can be handled in its contracted form by a remote arm or gantry is pl... | 07/30/1996 |
| 5299359 | Method and system for measurement of internal tube dimensions within a wellbore A caliper logging sonde is provided having a plurality of sensing fingers each of which is pivotally mounted to the sonde and movable with respect to the sonde in response to variations in the internal dimensions of a wellbore tube through which the sonde... | 04/05/1994 |
| 5247251 | Probe with radially extendable and retractable detector assembly for inspecting interior walls of hollow metallic plug An eddy current probe, especially useful for inspecting roll plugs in steam generator tubes, has a detector assembly which is automatically extended and retracted in a radial recess in an elongated body to prevent damage to the detector assembly during in... | 09/21/1993 |
| 5226240 | Measurement gauge for orifice meter A measurement gauging device for an orifice meter having a restricting orifice plate, and pressure tap holes through the meter tube flanges, or through the orifice plate holding device (commonly called an orifice fitting), each side of the orifice plate t... | 07/13/1993 |
| 5224274 | Contact gage A contact gage having a pair of elongated, pivotal gaging levers mounted in laterally spaced, side-by-side association and having lateral gaging contacts at the forward ends thereof. A V-shaped motion translation reed is mounted on and symmetrically betwe... | 07/06/1993 |
| 5217404 | Process for the calibration, length measurement and packaging of portions of intestine used in pork butchery and apparatus for carrying it out This process involves continuously measuring the size of a portion of intestine by means (3) and commanding by means of a computer (8) the selection of a packaging container or support (7) corresponding to this size. This process also involves measuring b... | 06/08/1993 |
| 5205048 | Pipeline bend detector pig A pipeline bend detector pig for measuring a bend in pipeline is disclosed, the pig having an elongated flexible body for transposition through the pipeline. The body has an imaginary central axis that substantially remains coaxial with the pipeline cylin... | 04/27/1993 |
| 5204622 | Improved probe for inspecting tubes having mechanism for maintaining alignment of probe axis of rotation An improved tube inspection probe is provided of the type that includes a probe head assembly formed from a body member and a sensor holding mechanism for resiliently engaging a sensor against the inner wall of a tube, and a flexible cable connected to th... | 04/20/1993 |
| 5092056 | Reversed leaf spring energizing system for wellbore caliper arms A caliper tool mechanism is set forth. In the preferred and illustrated embodiment, a pair of opposing caliper arms are pivotally mounted on a elongate body and are recessed in elongate slots in said body. The caliper arms are retracted to a parallel posi... | 03/03/1992 |
| 4977681 | Bore Gauge A bore gauge having a fixed and an opposing automatically-adjustable contact anvil, each such anvil having an extended length in the direction of the axis of the bore being gauged, the gauge having a body about which is adjustably secured a reference plat... | 12/18/1990 |
| 4914826 | Decentralized well logging apparatus for measuring the diameters of a borehole along its perpendicular diametrical axes In the preferred embodiment of the well tool disclosed herein, a main body adapted to be suspended in a borehole includes a pivoted tool-decentralizing arm which is movable between a retracted position along the rear of the body and an extended position w... | 04/10/1990 |
| 4907345 | Apparatus for checking diametral dimensions of mechanical pieces An apparatus for checking diametral dimensions comprises a resilient protection element, with a substantially tubular shape, for protecting an internal arm-set by preventing any foreign matter, like chips, from entering inside. In order to obtain a protec... | 03/13/1990 |
| 4830105 | Centralizer for wellbore apparatus A borehole centralizer includes an elongated shank member on which opposed head members are slidable and are connected to articulated arms which are movable radially inwardly and outwardly to centralize a tubing string or apparatus in a borehole in which ... | 05/16/1989 |
| 4651437 | Apparatus for checking the internal diameter of pipelines Mounted on a carriage movable through a pipeline is a shaft which carries a wheel held against the inner surface of the pipeline. The shaft is arranged so that it can reciprocate transversely of the pipeline as the diameter of the latter varies, and a pen... | 03/24/1987 |
| 4625795 | Geomechanical probe for a drilling well A geomechanical probe for a drilling well comprises a logging box located between two inflatable preventers and including a plurality of tracers movable radially and urged outwards by springs for engaging the well wall. The tracers are mounted on pistons ... | 12/02/1986 |
| 4595055 | Centering apparatus A device for centering a tool forming a part of a tool string, inside a cased well, comprises a central bar suitable for being integrated in a tool string for lowering the tool inside the tubing, two slides which are slidable over a limited range of said ... | 06/17/1986 |
| 4588951 | Arm apparatus for pad-type logging devices An apparatus is described for urging the measuring pad of a well logging sonde into engagement with the wall of a borehole. A relatively long primary arm on which the pad is mounted includes an actuator, and is pivotally connected to the body of the well ... | 05/13/1986 |
| 4559709 | Apparatus for measuring the internal dimensions of a tube, notably in a well, and displacement measurement method applicable to such an apparatus A caliper logging sonde is equipped with a plurality of fingers (54) mounted swivelably with respect to its body member (51). The movement of each finger (54) is transmitted to a respective bar (176) in magnetic material. This bar moves within a longitudi... | 12/24/1985 |
| 4523640 | Arm release system for well logging apparatus A well logging instrument includes a body member supporting one or more arm members which may be biased outwardly against the sidewalls of the borehole. The arm members may be held in a closed position, adjacent the body member, during entry into a boreho... | 06/18/1985 |
| 4495808 | Parachute profiler A collapsible parachute is propelled through a pipeline by flow of the pipeline contents. The parachute tows a pipeline profiling device which may include spring loaded feeler arms. The parachute collapses in order to pass obstructions or constrictions in... | 01/29/1985 |
| 4457073 | Pipeline pig having improved means of sensing changes in the internal configuration of a pipeline A pipeline pig having improved means of sensing changes in the internal configuration of the pipeline through which the pig passes is provided by the invention which employs a pipeline pig body, a radial cup of elastomeric material supported to the body h... | 07/03/1984 |
| 4443948 | Internal geometry tool A pig for monitoring the internal surface profile of a pipeline carries a plurality of sensors to trace the surface as the pig traverses the pipeline. Output signals from the sensors are compared with an expected value and a reference signal generated whe... | 04/24/1984 |
