Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7444760 | Marking device A marking device, in particular a hand-held marking tool for positioning markings, comprises first means (50, 52, 54, 56) which make it possible to position the device (10) in a predefinable first position of a reference surface (16), and second... | 11/04/2008 |
| 7414235 | Handheld locating device with a sensor for detecting motion parameters A handheld device. In particular a locating device, includes a housing (10), which is movable with a handle unit (12) over a surface of an item being examined and which has a sensor unit (16) for picking up a first motion parameter. At least one... | 08/19/2008 |
| 7325327 | Method and apparatus for measuring angular or linear displacement An apparatus and method are disclosed for measuring the angular or linear displacement of an object. That displacement is transmitted to a movable conductive member, which, in response thereto, is moved to a position at which it electrically contacts one of a plural... | 02/05/2008 |
| 7272893 | Rolling electronic length measuring device An electronic measuring device is disclosed which includes a pair of wheels connected to an axle that passes through a drive gear. The drive gear is enmeshed to a second gear which, in turn, is coaxially connected to an encoder disk. The encoder disk has spaced-apar... | 09/25/2007 |
| 7210244 | Distance calculation device Provided is a distance calculating apparatus calculating a real distance from a map distance of a map path connecting a first point and a second point on a map, the apparatus including: a housing; a scale input unit into which a reduced scale is input, disposed in t... | 05/01/2007 |
| 7178259 | Rolling electronic length measuring device An electronic measuring device is disclosed which includes a pair of wheels connected to an axle that passes through a drive gear. The drive gear is enmeshed to a second gear which, in turn, is coaxially connected to an encoder disk. The encoder disk has spaced-apar... | 02/20/2007 |
| 7173197 | Handheld fish measuring apparatus with integral camera A handheld apparatus for measuring fish, game, and the like is provided and includes a scale, a camera, and a length measuring device. The scale includes a support member that extends outwardly from the apparatus housing, and a display that is visible through the ho... | 02/06/2007 |
| 7131216 | Distance measuring apparatus A distance measuring apparatus having a frame and a wheel rotatable relative to the frame around a first axis. The wheel has a peripheral surface that can be rolled against a surface upon which a distance measurement is to be taken. The distance measuring apparatus ... | 11/07/2006 |
| 7111412 | Wheel vehicle measuring apparatus Disclosed is a vehicle wheel measuring apparatus, comprising a push rod, a counter, a wheel, and a gear coupled mechanism, wherein the counter is disposed on top of the push rod. Through the gear coupled mechanism, the axle center of said counter and the wheel axle ... | 09/26/2006 |
| 7047153 | Method and apparatus for improved inspection classification of attributes of a workpiece An apparatus for detecting the probable existence, location, and type of defects in a workpiece is described. The apparatus includes a sensor subsystem, an optimizer, a control subsystem, and a computer system having a processor and computer readable memory. Sensor ... | 05/16/2006 |
| 7040036 | Distance measuring device A distance measuring device includes a housing having a distance meter, a measuring wheel having a wheel axle rotatably engaged into the housing and coupled to the distance meter. A brake wheel is disposed on the wheel axle. A brake arm is pivotally secured in the h... | 05/09/2006 |
| 7036241 | Rolling electronic length measuring device An electronic measuring device is disclosed which includes a pair of wheels connected to an axle that passes through a drive gear. The drive gear is enmeshed to a second gear which, in turn, is coaxially connected to an encoder disk. The encoder disk has spaced-apar... | 05/02/2006 |
| 6967645 | Encoder device combined with a roller An encoder device coupled to a roller or “scroll wheel” includes a mechanism to convert a rotating movement of the roller into a reciprocating movement that causes intermittent electrical conduction between two metal contacts so as to output an intermittent elec... | 11/22/2005 |
| 6952880 | Measurement and marking device A measurement and marking device includes a housing, a positional sensing assembly mounted in the housing, a printhead assembly mounted in the housing, and a controller mounted in the housing and communicating with the positional sensing assembly and the printhead a... | 10/11/2005 |
| 6901675 | System and method for sizing a center bore of a laminated rotor A system and method of sizing an inner diameter of the center bore of a laminated rotor is provided. The inner diameter of the center bore is determined by taking a series of measurements in the center bore with an electronic gauge and then analyzing the measurement... | 06/07/2005 |
| 6889444 | Antler scoring system An antler scoring system for enabling efficient and accurate measurement of antlers. The antler scoring system includes a housing, a wheel member rotatably attached to the housing, a central processing unit within the housing in communication with the wheel member, ... | 05/10/2005 |
| 6886269 | Locating device A positioning device includes a housing (10) and a display unit (12), in particular a display for graphic representation of measurement information, which display is movable for locating purposes using a handle unit (14) over a surface of an art... | 05/03/2005 |
| 6708478 | Device and procedure for regulating the bale length of a square baler The invention pertains to a device and procedure to regulate the bale length in a square baler. Sensors determine both the forward and backward movement of the crop bundle and transfer these measurements to an evaluation electronic. The evaluation electronic adds th... | 03/23/2004 |
| 6691424 | Displacement measuring device A displacement measuring device includes a body which is movable on a plurality of rails and driven by a first shaft. An extension portion is connected to the body and a second shaft connected to the body extends through the extension portion. A first gea... | 02/17/2004 |
| 6637278 | Measuring system for determining the surface line of a body A measuring system has a freely movable measuring instrument and a computer for processing the measured data. Two measuring devices are in the measuring instrument, each with two acceleration sensors. Two of the sensor each in a common plane and the two m... | 10/28/2003 |
| 6574882 | Pen type curve length measuring apparatus having caster A handy type curve length measuring apparatus comprises a pen-holder like body, a castor rotatably connected with the body so as to rotate around a first axis and having a disk including slits, pulse generating means and an indicator. When the disk rolls ... | 06/10/2003 |
| 6550151 | Contour measuring device and method The disclosed invention is an improvement on the traditional measuring wheel. When the odometry information is combined with two robust attitude sensors and an on-board computer, the instrument is able to perform useful measurements such as the calculatio... | 04/22/2003 |
| 6199292 | Electromechanical dimensioning device An electromechanical dimensioning device measures dimensional attributes of an object and transmits the dimensional attributes from the dimensioning device to a remote receiving device. The dimensioning device converts rotational motion of a measuring whe... | 03/13/2001 |
| 6050960 | Laparoscopic instrument A laparoscopic instrument which permits distance measurements to be taken internal of a body includes a wheel rotatably mounted at a distal end of an elongated barrel portion. The wheel is placed in contact with an internal body part to be measured and ro... | 04/18/2000 |
| 6006436 | Sheet length counter for plotter An engineering drawing plotter includes a feed roller for moving paper lengthwise bidirectionally with respect to one or more plotting pens. A counter installed on the plotter includes a pulse switch for measuring absolute lengthwise paper displacement, a... | 12/28/1999 |
| 5943785 | Curve length measuring apparatus having caster A handy type curve length measuring apparatus includes a pen-holder like body, a caster rotatably connected with the body so as to rotate around a rotation axis and having a disk including slits, light emitting device, light detecting device and an indica... | 08/31/1999 |
| 5875556 | Apparatus and method for measuring a figure A measuring device, such as a planimeter, having an increased measurable range for measuring a figure without increasing a length of the measuring device. The measurable range of a planimeter is based upon the a physical length of the planimeter. In order... | 03/02/1999 |
| 5816165 | Method of encoding roll length indicia on printer media Rolls of printer paper are marked with information which indicates the length of paper remaining on a roll by measuring the distance between indicia successively applied by two separate print drums which each apply indicia at substantially equally spaced ... | 10/06/1998 |
| 5780846 | Device in pen form with means for measuring a length A measuring or determining device including a measuring head with a movable body designed to be placed in contact with the object on which the measurement or determination is to be executed. The device includes structure for the generation of electromagne... | 07/14/1998 |
| 5755918 | Hand-held labeling apparatus with measuring device and printer The hand-held apparatus of the present invention includes an integral printer and measuring device so that measurement information obtained from the measuring device may be automatically printed, used to determine additional information to be printed such... | 05/26/1998 |
| 5735324 | Miter box with electronic measuring of lumber The invention is directed to measuring the length of a piece of wood to be cut in a miter box, a frame and trim saw, a radial saw and the like. The miter box includes a back (24) having a surface (24a) against which the piece of wood is placed and slid in... | 04/07/1998 |
| 5727329 | Device for measuring a figure A device for measuring a figure. The measuring device includes an auxiliary tracer to obtain measurement coordinates when a measuring lever of the measuring device is beyond a predetermined rotatable range. The auxiliary tracer functions to increase the m... | 03/17/1998 |
| 5577330 | Measuring device An electronic hand holdable measuring device for measuring dimension of an article by rolling the device across surface of the article includes a housing 10 and a roller sub-assembly 11. When the roller is worn it can be readily replaced together with an ... | 11/26/1996 |
| 5560119 | Opto-mechanical instrument to accurately measure linear distances on flat or curved surfaces with incrementing A hand-held scaler for a map or illustration uses a rotary element and an optical sensor at its tip to generate digital pulses when the tip is moved over a map surface. The pulses are counted by a microprocessor. Different pulse counts automatically scale... | 10/01/1996 |
| 5485682 | Opto-mechanical instrument to accurately measure linear distances on flat or curved surfaces A self-contained, electronic, hand-held scaler for a map or other illustration uses a rotary element and an optical sensor at its tip to generate digital pulses when the tip is moved over a map surface. The pulses are counted by a microprocessor that also... | 01/23/1996 |
| 5477622 | Electronic hand-held measuring device for obtaining the dimensional weight of a shipment of freight A hand-held measuring device for measure the dimensional weight of the boxes in a shipment of freight includes a gun shaped housing having a tracing wheel located at a front end of the elongated portion of the housing. A handle is located at the back end ... | 12/26/1995 |
| 5301427 | Handheld pipe rule and cutter A rigid housing has an axially extending opening which receives a length of cylindrical tubing therethrough. A measuring assembly is mounted to the housing and has a circular friction wheel which is rotatable about an axis which is perpendicular to the ax... | 04/12/1994 |
| 5291900 | Instrument for measuring the length of infants An instrument for measuring infants which include a housing that can be slid uniformly in a straight line on a base, a measuring device to record the translational motion, which is connected to a counter that displays the path traveled. The housing also c... | 03/08/1994 |
| 5220731 | Friction drive position transducer A spring force loaded contact wheel mounted in a stationary position relae to a reciprocating shaft is disclosed. The apparatus of the present invention includes a tensioning assembly for maintaining absolute contact between the contact wheel and the rec... | 06/22/1993 |
| 5197200 | Device for the measurement of the diameter of cylinders A device for the measurement of the diameter of a body such as a cylinder, more particularly in the form of a workpiece on a roll grinding machine, having a contact wheel adapted to run on the surface of the body and a first rotational pickup (angle encod... | 03/30/1993 |
