Digital Indicator Patents (Class 33/784)
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Patent number: 7475493Abstract: A caliper-like instrument for measuring tree diameters, includes a straightedge on which there is placed a first leg and a second leg. The instrument further includes a recording unit adjacent the first leg for recording and storing tree diameter measurements. The first leg is fixedly placed along the straightedge, and the second leg projects out from a slide displaceable along the straightedge, with the legs and the straightedge located in mutually the same plane. The first leg can be lowered in the plane and is pivotally fastened to an attachment on the straightedge, and the second leg can be lowered in the plane and is pivotally attached to the slide. The first leg has a first fastener intended to be hooked into the attachment and the second leg has a second fastener intended to be hooked into the slide.Type: GrantFiled: May 22, 2006Date of Patent: January 13, 2009Assignee: Haglof Sweden ABInventor: Stefan Haglöf
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Publication number: 20080250665Abstract: A rotor bushing restrictor (50) that prevents a rotor bushing (44) from moving away from a stator (42) is provided. The rotor bushing restrictor (50) includes a fixing member (51) fixed on a body and a rotor bushing attitude retainer (52) placed between the rotor bushing (44) and the fixing member (51). The rotor bushing attitude retainer (52) includes two first abutment portions (522) contacted with the rotor bushing (44) and two second abutment portions (523) contacted with the fixing member (51). The two first abutment portions (522) are symmetrically placed to each other with respect to the axis of the spindle (2), and the two second abutment portions (523) are symmetrically placed to each other with respect to the axis of the spindle (2). The two first abutment portions (522) and the two second abutment portions (523) are placed such that a straight line connecting the two first abutment portions (522) and a straight line connecting the two second abutment portions (523) are orthogonal with each other.Type: ApplicationFiled: January 22, 2008Publication date: October 16, 2008Applicant: MITUTOYO CORPORATIONInventors: Shuji Hayashida, Shozaburo Tsuji
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Publication number: 20080229604Abstract: A measuring instrument displaying measurements on a digital display for either exterior dimensional measurements of a component or wall thickness measurements of pipe or tubing. Exterior dimensions are determined through contact between the distal end of a first member and the distal end of the base. A second member engaged with the first member is translatable along a second axis traverse to the first axis to an extended position. Wall thickness of a tube or conduit may be measured by a contact with a distal end of the second member and the distal end of the first member. A globular shape to the distal end of the second member allows for accurate measurements in a contact with the interior of either a planar or curved tubing sidewall.Type: ApplicationFiled: March 19, 2008Publication date: September 25, 2008Inventor: Lin Wo
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Publication number: 20080189971Abstract: A brake disc and drum measuring device featuring an elongated member attached to two pairs of jaws extending in opposite directions from the member. A first of said first pair of jaws engaged to said member is adapted to measure a brake rotor while as second pair of jaws measures brake drums. A digital display is always in view with digital indicia right-side-up when the device is being employed in the as-used position with the first pair of jaws extending upward relative to the user's face. Large shoulders on a second pair of jaws provide for easy positioning on brake drums having oversized extensions from their sidewall. A moveably jaw on the second pair also allows the device to be balanced.Type: ApplicationFiled: February 13, 2008Publication date: August 14, 2008Inventor: Lin Wo
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Publication number: 20080184582Abstract: An electronic calipers is provided with an adjustable digital display. In an embodiment the calipers includes an elongated body and a display member that pivots or rotates relative to the elongated body. The display member may include a base member, which is coupled with the elongated body for translational movement along at least a portion of a length of the elongated body, and a display coupled with the base member for pivotal movement between a first orientation and a second orientation. In other embodiments, the calipers includes a display portion that rotates on the body portion through an angle of about 360°. In some embodiments the display portion may be a generally annular-shaped member that rotates and/or translates on the elongated body.Type: ApplicationFiled: February 7, 2008Publication date: August 7, 2008Applicant: Eidosmed LLCInventor: John Y. S. Kim
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Publication number: 20080120862Abstract: A digital indicator (1) includes: a main body (10); a spindle (11) being axially slidable and having a contact portion (12) on one end, the contact portion abutting a to-be-measured portion; a detector (13) that detects an absolute displacement amount of the spindle (11) relative to the main body (10); and a display (14) that digitally displays the displacement amount of the spindle (11) relative to the main body (10) detected by the detector 13. The spindle (11) is slidable in a direction away from the contact portion (12) beyond the detectable range of the detector (13).Type: ApplicationFiled: November 26, 2007Publication date: May 29, 2008Applicant: MITUTOYO CORPORATIONInventors: Shuji Hayashida, Aki Hiroshima, Rie Arai, Takefumi Kiwada
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Patent number: 7373735Abstract: A device and method for rapid hardware sizing includes a ruler-like body having a fixed end and a distal end, a fixed jaw at the fixed end, and a sliding jaw opposite the fixed jaw being slidably connected to the body such that the sliding jaw slides there along from a point immediately adjacent to the fixed jaw to the distal end. A digital logic calculation and display means is secured to the sliding jaw such that it moves along the body with the sliding jaw. A measuring means is in communication with the digital logic calculation and display means, and measures a distance between the fixed and sliding jaws. The distance is then communicated to the digital logic calculation and display means and selectively displayed thereon.Type: GrantFiled: June 24, 2006Date of Patent: May 20, 2008Inventor: Todd M. Jacobs
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Patent number: 7325327Abstract: 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 plurality of fixed contacts, thereby to complete an electrical circuit that includes a memory location in a read-only memory that contains digital data representing the amount of displacement that correlates to the fixed contact associated with that memory location. That digital data is transferred to an output device for display or additional data processing.Type: GrantFiled: September 12, 2003Date of Patent: February 5, 2008Inventor: David C. Fischer
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Patent number: 7275335Abstract: The present invention relates to a digital tram gauge assembly having an extendible elongate tram bar having a first height rod at a first end and a second height rod at a second end. A digital measuring device is positionable about the tram bar and is capable of digitally sensing, displaying and wirelessly transmitting measurement data from the digital tram gauge. The digital measuring device further includes a digital level sensor that functions as a digital level comparator to indicate whether the tram gauge assembly is oriented substantially parallel to a user-defined reference datum plane.Type: GrantFiled: August 18, 2005Date of Patent: October 2, 2007Assignee: Chassis LinerInventors: Henry V. Holec, Greg W. Parkhurst, Timothy M. Gack, Eric R. Seckerson, Mike V. Atkinson
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Patent number: 7266906Abstract: A measuring tool has a slider (3) supported to a body frame (1) and a feeding mechanism (4) for moving the slider in axial direction. The feeding mechanism includes: an outer roller (41) rotatably supported to the body frame (1); a forward feed roller (42) disposed between the outer roller (41) and the slider (3) at a position closer to a forward side of the slider (3) relative to the outer roller (41); a reverse feed roller (43) disposed at a position on a reverse side; a roller holder (45) supporting these feed rollers to allow them to move along the circumference around the axis of the outer roller; a first leaf spring (44) that biases these feed rollers toward the slider side; and a power transmitter (46) connecting the outer roller (41) to these feed rollers to transmit the rotation of the outer roller to the feed rollers.Type: GrantFiled: September 21, 2006Date of Patent: September 11, 2007Assignee: Mitutoyo CorporationInventor: Masamichi Suzuki
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Patent number: 7246450Abstract: An electronic device includes a housing that has front and side faces. The side face has a linear shape provided with a longitudinal length smaller than a diameter of the front face. Coextensively shaped top and bottom conductive clamps are coupled to the side face and spaced from the front face. The bottom clamp is stationary and the top clamp is linearly displaced along the side face. The clamps form a closed electrical circuit when engaged with the fastener. A controller is coupled to the top clamp so that the top clamp is linearly displaced downwardly and upwardly when the controller is rotated along first and second directions. A mechanism is included for measuring a voltage level when the clamps contact the fastener. The voltage level is proportionally adjusted based upon the size of the fastener such that the voltage level increases when a linear distance between the clamps increases.Type: GrantFiled: July 17, 2006Date of Patent: July 24, 2007Inventor: Earl Mason
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Patent number: 7131208Abstract: A flexible measuring tape is extended from a predetermined location on a face a predetermined distance to a location on a scalp. A 2 cm by 2 cm square bundle of hair about that location is isolated. The bundle of isolated hair is captured in a slit in a two-part cartridge, one part being slidable in the other part about a changeable length slit 1 mm wide. The cartridge is placed in an “L” shaped end of a plunger extending from a first end of a body of a measuring device. The plunger is drawn into the body of the device to compress the hair in the changeable length slit as the two parts of the cartridge are pushed together between an end of the “L” and the first end of the body. A spring is provided on the plunger between a second end of the body of the device and an inner end of a knob at an outer end of the plunger.Type: GrantFiled: April 13, 2005Date of Patent: November 7, 2006Assignee: Bernard Cohen Technology, LLCInventor: Bernie Cohen
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Patent number: 7076886Abstract: A slide caliper assembly comprises a caliper including a shaft defining a gaging surface. A first jaw is coupled to and a second jaw is slidably coupled to the shaft. Each jaw defines a gaging surface. One of the jaws is adjustably pivotable relative to the shaft about a pivot axis coinciding with an intersection of the gaging surface of the shaft and another axis extending along the associated gaging surface of one of the jaws. A case houses the caliper, and has a plurality of side edge sections defining a periphery of the case. One side edge section and an adjacent side edge section form a non-right angle therebetween such that the shaft can abut the side edge section, the first jaw can abut an adjacent side edge section, and the second jaw can abut another adjacent side edge section for calibrating or demonstrating the use of the caliper.Type: GrantFiled: March 22, 2005Date of Patent: July 18, 2006Assignee: ebm-papst Inc.Inventors: William Thomas John, Christopher Paul Penna, Dale Allan Watson
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Patent number: 7024793Abstract: A caliper for measuring tree diameters of trees. A slide having a permanent magnet is movable along a graduated rule, the caliper including a pair of legs, one leg attached to one end of the rule, and another leg attached to the slide. An electronic unit measures the position of the slide along the rule and stores measurement values and other desired data. A wire extends within a longitudinal internal cavity in the rule and co-acts with a piezo crystal adjacent an end of the caliper. The wire is connected to a pulse generator that generates short electric pulses of predetermined duration. The caliper also includes a detector that co-acts with the piezo crystal and with the pulse generator pulses to detect a geometric change in the wire that is sensed by the piezo crystal, which emits an electrical pulse in response to that geometric change.Type: GrantFiled: September 13, 2002Date of Patent: April 11, 2006Assignee: Haglöf Sweden ABInventor: Hans Jacobsen
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Patent number: 6993851Abstract: The method for isolating an area of hair-bearing skin and measuring a combined cross section of hair in the area comprising the steps of: preparing a pre-measured site on the scalp; isolating a standardized bundle of uncut hair at the site; compressing the bundle of hair with a measurable load while simultaneously measuring the height of the bundle of hair with a piston and cylinder device. One embodiment of the device comprises a body having a slot for receiving a bundle of hair, an anvil positioned adjacent said slot, and a mechanism for causing relative movement between the body having the slot and the anvil thereby to compress a bundle of uncut hair received in the slot against the anvil.Type: GrantFiled: April 16, 2004Date of Patent: February 7, 2006Assignee: Bernard Cohen Technology, LLCInventor: Bernard H. Cohen
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Patent number: 6990746Abstract: A slide caliper includes an elongated shaft defining a gaging surface for abutting against a first surface of an object to be measured. A first jaw is coupled to the shaft and defines a gaging surface for abutting against a second surface of the object. A second jaw is slidably coupled to the shaft and defines a gaging surface for abutting against a third surface or edge of the object. The second jaw along the shaft is adjustable between a first position where the gaging surfaces of the jaws generally abut each other to a second position where the gaging surfaces of the jaws are maximally spaced from each other. At least one of the jaws is adjustably pivotable relative to the shaft about a pivot axis coinciding with an intersection of the gaging surface of the shaft and another axis extending along the associated gaging surface of the pivotable jaw.Type: GrantFiled: April 27, 2004Date of Patent: January 31, 2006Inventors: Christopher Paul Penna, Dale Allan Watson
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Patent number: 6879653Abstract: The diameter of a segment of a peripheral rod in a fuel assembly is measured between two successive spacer grids. A measuring tool is positioned at a level situated between the two successive spacer grids, the tool comprising two measuring fingers that are free to move relative to each other in a first horizontal direction and that are urged towards each other by a resilient return arrangement, and that extend in a second horizontal direction perpendicular to the first horizontal direction. The measuring fingers are moved in the second horizontal direction towards a rod so as to put two contact pieces of the measuring fingers into contact with two zones of the rod segment. The measuring fingers are moved in the vertical axial direction of the rod along its segment situated between the two spacer grids and an electromagnetic sensor is used to measure the distance between the measuring fingers in the first horizontal direction while the measuring fingers are being moved axially.Type: GrantFiled: March 27, 2001Date of Patent: April 12, 2005Assignee: Framatome, ANPInventors: Jairo Arias, Sandrine Maire
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Patent number: 6834439Abstract: Components of a measuring tool such as a main beam (11) and a slider (12) of a caliper gauge (1) are formed by a synthetic resin containing carbon nanofiber and an electro-conductive electrode (15) is formed on the surface of the main beam (11) at a predetermined pitch, so that a production process can be simplified, rigidity of the components can be enhanced, linear expansion coefficient can be reduced, and anti-frictional properties can be improved, thus enhancing durability while improving measurement accuracy.Type: GrantFiled: May 19, 2003Date of Patent: December 28, 2004Assignee: Mitutoyo CorporationInventors: Sadayuki Matsumiya, Susumu Yoshioka, Shuuji Hayashida, Kouji Sasaki
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Patent number: 6829839Abstract: An electronic caliper includes fixed and movable caliper arms mounted on a common housing and having jaws at their free ends. One of the caliper arms is attached to the housing through a pivot pin for pivoting motion between a contact position and a disengaged position. A spring engages the movable arm at a point on a side of the pivot pin opposite the jaws. The spring is under tension so as to bias the contact pad carried by the distal end of the movable caliper arm toward contact with the pad mounted on the distal end of the fixed caliper arm. A non-contact electronic sensor is positioned facing a target disk carried by movable caliper arm at its innermost end within the housing. A plunger, located on the same side of the pivot pin as is the target disk, allows the movable caliper arm to be pivoted to its open position to allow for insertion and removal of the soft tissue to be measured.Type: GrantFiled: August 1, 2002Date of Patent: December 14, 2004Assignee: The United States of America as represented by the United States Environment Protection AgencyInventor: Paul M. Killough
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Patent number: 6816805Abstract: The present invention relates to a process and method for printing, utilizing a computer and computer printer, a scale instrument and conversion tool to be used in preparing and interpreting scaled drawings, maps, aerial photographs, graphs and similar documents. The instrument can be printed on paper, plastic film, or any flexible media capable of being processed by a computer printer. The invention includes a sub-process to not only print a scale denominated in the various scales typically used in preparing scaled drawings, etc., but also to print a scale denominated in any other scale to be used in interpreting a drawing, etc., which is not longer presented in the original scale due to reproduction, shrinkage, enlargement, or reduction.Type: GrantFiled: February 28, 2003Date of Patent: November 9, 2004Inventor: Charles Wilder Wadell
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Patent number: 6671976Abstract: An output-attached measuring instrument has: a measuring instrument body (1) having a circuit board (14) for processing a measurement signal from a sensor as a measurement data, an output electrode (15) for outputting the measurement data, and a connector hole (17) in communication with the output electrode and opening to an outer surface; and a connection cable (30) having a connector (32) capable of attaching to and detaching from the connector hole on an end thereof for transmitting the measurement data obtained by the measuring instrument body to an external device, the connector having a projection (33) capable of being plugged to and unplugged from the connector hole and a connector terminal (34) exposed on a surface thereof, where an elastic connector (20) having am electro-conductive portion for electrically connecting the connector terminal and the output electrode is accommodated in a space of the connector hole of the measuring instrument body and the elastic connector shuts the connector hole whenType: GrantFiled: August 14, 2002Date of Patent: January 6, 2004Assignee: Mitutoyo CorporationInventors: Seigo Takahashi, Masamichi Suzuki, Kouji Sasaki, Yoshiaki Shiraishi
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Publication number: 20030217478Abstract: Components of a measuring tool such as a main beam (11) and a slider (12) of a caliper gauge (1) are formed by a synthetic resin containing carbon nanofiber and an electro-conductive electrode (15) is formed on the surface of the main beam (11) at a predetermined pitch, so that a production process can be simplified, rigidity of the components can be enhanced, linear expansion coefficient can be reduced, and anti-frictional properties can be improved, thus enhancing durability while improving measurement accuracy.Type: ApplicationFiled: May 19, 2003Publication date: November 27, 2003Applicant: MITUTOYO CORPORATIONInventors: Sadayuki Matsumiya, Susumu Yoshioka, Shuuji Hayashida, Kouji Sasaki
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Patent number: 6622397Abstract: A shim measuring apparatus to determine the thickness of a shim, with the shim used with a ball joint including a snap-ring and a controlled arm having a bore and a notch. The measuring apparatus comprises an upper housing including a measuring device and a lower housing coupled to the upper housing. The lower housing is configured to receive the ball joint and to engage the notch in the bore. The distance between the upper housing and the lower housing while a load is applied is measured by the measuring device. Such distance between the upper housing and the lower housing represents the shim thickness.Type: GrantFiled: April 25, 2002Date of Patent: September 23, 2003Assignee: Oshkosh Truck CorporationInventor: Jesse Knoble
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Patent number: 6553685Abstract: A measuring instrument includes a spindle (11) provided to a body (1), a sleeve (31) movable in the same direction as the spindle and stoppable at a desired position, a connector (41) for connecting the sleeve and the spindle and allowing relative movement of the sleeve and the spindle in the moving direction thereof by a predetermined stroke; a pressure spring (61) accommodated in the sleeve for biasing the spindle in a direction for the spindle to abut to the workpiece through the connector, and a biasing force indicator (71) for indicating the pressure spring.Type: GrantFiled: July 23, 2001Date of Patent: April 29, 2003Assignee: Mitutoyo CorporationInventors: Shingo Nishina, Masahiko Tachikake, Yoshiaki Shiraishi, Rie Tanaka, Shuuji Hayashida, Yoshitaka Kuji, Osamu Saito, Tetsuya Nakadoi
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Publication number: 20030051361Abstract: This invention provides an angle gauge that, when used in conjunction with a caliper or other linear measuring device, improves both the precision and ease with which angles can be measured and set by allowing the user accurately to measure and set angles in fractions of degrees. Using the gauge, an angle formed by the gauge may be determined or set by reference to the linear distance measured by the caliper. Calculations or tables can be used to convert the linear measurements into the angle setting or measurement with great accuracy, or the capacity to calculate the angle corresponding to the linear measurement can be built (i.e. programmed) directly into the device.Type: ApplicationFiled: October 4, 2002Publication date: March 20, 2003Inventor: John Economaki
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Patent number: 6508012Abstract: A digital fastener size indicator having a housing. A fixed jaw extends from an end of the housing, while a movable jaw extends from the end of the housing adjacent to and parallel with the fixed jaw. A digital electrical length measuring circuit within the housing is connected to the movable jaw. When the movable jaw and the fixed jaw encompass a fastener and the digital electrical length measuring circuit is activated a digital readout will be presented in the housing of a single discrete number to an operator to indicate the size of the fastener.Type: GrantFiled: December 30, 2000Date of Patent: January 21, 2003Inventor: Earnest G. Wells, Jr.
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Patent number: 6497051Abstract: A measurement device having a pair of legs. Each leg has a measurement point and a fulcrum end, the fulcrum ends providing a pivot point for the legs so that the measurement points arcuately move apart from one another. The measurement device has a transducer assembly connected to at least one of the legs which measures leg displacement and generates a distance signal. The measurement device has a programmable processing unit adapted to process the distance signal and display a distance measurement on an electronic display.Type: GrantFiled: April 13, 1999Date of Patent: December 24, 2002Inventors: Wayne F. Poole, Michael G. Sills
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Patent number: 6473987Abstract: A wafer edge grinding or polishing machine is provided with a pair of chucks for engaging a wafer therebetween, a fixed reference surface and a sensor which is movable with a movable chuck. Measurements are made by the sensor relative to the fixed reference plane when the movable chuck is in engagement with the opposite chuck without a wafer therebetween in order to obtain a standard measurement value. With a wafer between the chucks, the sensor obtains an actual measurement value relative to the fixed reference surface. A calculator determines the difference between the standard and actual measurements values and displays the difference as the thickness of the wafer. Multiple sensors may be used to obtain multiples readings which are averaged by the calculator to obtain a thickness measurement.Type: GrantFiled: December 28, 1999Date of Patent: November 5, 2002Assignee: Accretech USA, Inc.Inventors: Robert E. Steere, III, Colby Steere
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Publication number: 20020083613Abstract: A digital fastener size indicator comprising a housing. A fixed jaw extends from an end of the housing, while a movable jaw extends from the end of the housing adjacent to and parallel with the fixed jaw. A digital electrical length measuring circuit within the housing is connected to the movable jaw. When the movable jaw and the fixed jaw encompass a fastener and the digital electrical length measuring circuit is activated a digital readout will be presented in the housing of a single discrete number to an operator to indicate the size of the fastener.Type: ApplicationFiled: December 30, 2000Publication date: July 4, 2002Inventor: Earnest G. Wells
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Patent number: 6412187Abstract: The present invention provides an analog quantity display method of counting displacement of a probe disposed in contact with an object to be measured and analog-displaying the obtained count value by an analog display section as an analog quantity. If a peak value of the count value exceeds a possible analog-display range of the analog display section, an offset provided for the analog-displayed count value is updated in such a manner that the peak value is displayed within the possible analog-display range. Further, an analog quantity measuring method is provided, which comprises counting displacement of the probe, compares the obtained count value with a peak value of the count value, holds the count value as a new peak value depending upon a result of the comparison, and executes the comparison and the holding of the peak value again if the difference between the present peak value and the present count value exceeds a predetermined value.Type: GrantFiled: January 11, 2000Date of Patent: July 2, 2002Assignee: Mitutoyo CorporationInventors: Koji Sasaki, Yoshitaka Kuji, Yuichi Ichikawa, Mikio Suzuki, Norihide Tsuyuki, Hiroyuki Ohta
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Publication number: 20020062573Abstract: The Using the relation ship between the change of distance and resistance in measuring the distance as function of the resistance.Type: ApplicationFiled: May 29, 2001Publication date: May 30, 2002Inventor: Shawky Z. Nada
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Patent number: 6332278Abstract: Portable precision caliper comprising a slide (2) and a shaft (1) each fitted with a jaw (10, respectively 20). The slide is further equipped with electronic means (11) which enable the distance between the jaws (10, 20) to be displayed on an electronic display (12). The electronic means are powered by a battery (110, 111). The shaft (2) is fitted with a magnetized scale (21) with a period of magnetization &lgr;. The electronic means (11) include a sensor (112) equipped with an array of magnetoresistive electrodes disposed opposite said scale (21). The resistance values of the magnetoresistive electrodes are a sinusoidal function of the longitudinal position of the sensor (112) along the scale (21). The set of magnetoresistive electrodes includes at least certain sets of magnetoresistive electrodes formed of at least 8 electrodes connected in series, so as to increase the electric resistance of the sets and to reduce the electricity consumption of the whole device.Type: GrantFiled: November 8, 1999Date of Patent: December 25, 2001Assignee: Brown & Sharpe TESA SAInventors: Alex Bezinge, Jean-Luc Bolli
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Patent number: 6279248Abstract: The present invention is embodied in a hand held caliper with a hand movable slide, whose motion is transformed into rotation of an apertured multi-row encoder disk, a radiation source and a radiation detector. The present invention accurately measures a linear dimension using a simple, efficient, and durable digital measuring system. Accuracy of 0.0001″ is attained, greater than the 0.0005″ of the prior art, without encountering greater manufacturing costs, by utilizing well known fabrication techniques when producing the multi-row encoder disk, and otherwise using well known and inexpensive technology. The present invention does not require a motion dampening device, as errors may be determined and signal jitter are compensated for in the invention electronically or through the use of software, which adds little or no additional cost to the system and does not add mechanical complexity.Type: GrantFiled: September 22, 1999Date of Patent: August 28, 2001Assignee: Central Purchasing, Inc.Inventor: Gary W. Walters
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Patent number: 6247244Abstract: The micrometer includes a sleeve provided with an at least partially threaded inner surface and an at least partially threaded outer surface. The outer surface includes at least one deformable, tapered portion. A micrometric screw is engaged in the sleeve, and is able to be set in rotation with respect to the sleeve in such a way as to displace itself along the longitudinal measuring axis (x) of the device. A nut is engaged on the external threading of the sleeve and is able to be put in contact with the tapered portion in such a way as to deform it in order to adjust the play between the screw and the sleeve. The tapered portion is devoid of longitudinal slits; its deformability is provided by an external diameter variable along its periphery, preferably by an odd number of flat segments.Type: GrantFiled: July 14, 1999Date of Patent: June 19, 2001Assignee: Brown & Sharpe Tesa SAInventors: Adriano Zanier, Arthur Bovey, Michel Paudex
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Patent number: 6205672Abstract: Tires can be accurately and quickly measured by using a tire caliper that outputs data in digital form. A measuring instrument determines the diameter of automotive tires, preferably automotive race tires, and displays the circumference or the diameter at the users option, The tool of this invention has a digital display including a relatively elongate caliper body formed with a measuring part adapted to make measuring engagement with the tire to be measured. A member freely slidable in a longitudinal direction of the caliper body and formed with a measuring part disposed opposite to the measuring part of the caliper. In one preferred embodiment, the measuring instrument is marked with a transparent linear scale fixedly disposed on the caliper body with its axis extending in the longitudinal direction of the caliper body and a transparent index scale is mounted on the slider with its calibrated face disposed opposite to the calibrated face of the linear scale and slightly spaced apart relationship.Type: GrantFiled: February 3, 1999Date of Patent: March 27, 2001Assignee: Skinner, Sutton, Watson & RoundsInventors: Craig Paulsen, Rick Capps
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Patent number: 6145207Abstract: A gauge system determines the thread pitch diameter of an internally or externally-threaded article and includes a standard measuring caliper with styli selected and fitted into the caliper to correspond to a particular thread type and pitch. The styli are mounted into the caliper to provide a reference zero position to the calipers for either externally or internally-fitted articles. A processor is associated with the calipers and styli and is of a type which is configured for hand-holding. The processor has input buttons for inputting a descriptor of internal or external threads, thread type and thread pitch. The processor software receives and processes information received from the caliper to calculate the thread pitch diameter. A display connected to the processor presents the thread pitch diameter.Type: GrantFiled: March 23, 1998Date of Patent: November 14, 2000Assignee: Brunson Instrument CompanyInventor: Gordon Brunson
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Patent number: 6105269Abstract: A osteological instrument having an unique dual rod and bearing linear motion mechanisms incorporating multiple measuring features and functions providing stable, rigid and generally fluidity of movement of horizontal and vertical caliper arms thereon.Type: GrantFiled: September 19, 1997Date of Patent: August 22, 2000Inventor: James W. Kondrat
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Patent number: 5920198Abstract: A rotatable rotor 41 and a stator 51 located at a predetermined gap between outer circumferential face of the rotor 41 provided with half-cylindrical inner circumferential face are provided. The both ends of the outer circumferential face of the rotor 41 are provided with a step portion 44 to retain a predetermined gap between the opposing faces of the rotor 41 and the stator 51, and a stopper portion 45 to be abutted to both end faces of the stator in the axial direction. A forcing means 61(plate spring) are also provided to force the stator 51 to the rotor 41 so that the inner circumferential face of the stator is abutted at the step portion 44.Type: GrantFiled: September 15, 1997Date of Patent: July 6, 1999Assignee: Mitutoyo CorporationInventors: Masamichi Suzuki, Seigo Takahashi
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Patent number: 5901458Abstract: An electronic caliper having a reduced offset position transducer that uses two sets of coupling loops on a scale to inductively couple a transmitter winding on a read head on a slide to one or more receiver windings on the read head. The transmitter winding generates a primary magnetic field. The transmitter winding is inductively coupled to first loop portions of first and second sets of coupling loops by a magnetic field. Second loop portions of the first and second sets of coupling loops are interleaved and generate secondary magnetic fields. A receiver winding is formed in a periodic pattern of alternating polarity loops and is inductively coupled to the second loop portions of the first and second sets of coupling loops by the secondary magnetic fields. Depending on the relative position between the read head and the scale, each polarity loop of the receiver winding is inductively coupled to a second loop portion of either the first or second set of coupling loops.Type: GrantFiled: November 21, 1997Date of Patent: May 11, 1999Assignee: Mitutoyo CorporationInventors: Nils Ingvar Andermo, Karl G. Masreliez
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Patent number: 5875561Abstract: A digital compass has a digital screen that shows the distance between compass legs, one half the angle between the compass legs, and a ratio between half of an inductive rod raising value to a length of the compass leg from a compass leg mounting point to a carrier arm mounting point. The information on the digital screen is sufficient for operation of the compass, such as dividing a circle into equal arcs.Type: GrantFiled: February 24, 1997Date of Patent: March 2, 1999Inventors: Chi Chung Chen, Yang Ning Pi
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Patent number: 5768798Abstract: A back-plunger type displacement detecting apparatus is provided having a thinner case. The back-plunger type displacement detecting apparatus has a spindle secured to the case to extend perpendicular to the display surface of a digital display unit. A movable member is secured to the case and extends perpendicular to the direction of movement of the spindle. A converting mechanism converts the displacement of the spindle into displacement of the movable member. An electrical unit detects the displacement of the movable member and displays the detected value on the digital display unit.Type: GrantFiled: February 6, 1996Date of Patent: June 23, 1998Assignee: Mitutoyo CorporationInventors: Seigo Takahashi, Masamichi Suzuki, Hiroshi Kawai, Yukio Kageura
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Patent number: 5691646Abstract: A rotary encoder 10 is composed of a halfway cylindrical stator 11 and a cylindrical rotor 12. The rotor 12 is disposed coaxial with the stator 11 with a predetermined gap. Plural transmitting electrodes 13 with spiral patterns and receiving electrode 14 with a rectangular pattern are formed on the inner surface of the stator 12. The transmitting electrodes 13 and receiving electrode 14 are formed of a FPC substrate 17 with lead lines 15, 16. On the outer surface of the rotor 12, coupling electrode 18 are formed with a spiral pattern so as to be capacitively coupled to the transmitting electrodes 13 and receiving electrode 14. FIG.Type: GrantFiled: November 16, 1995Date of Patent: November 25, 1997Assignee: Mitutoya CorporationInventor: Kouji Sasaki
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Patent number: 5657552Abstract: A map or globe is provided with a transparent thin covering capable of conducting electricity. The transparent thin covering envelopes the globe or overlies the map. An electrical resistance measuring means would be employed to determine a measure of electrical resistance between any two points on the map or globe. The electrical resistance measuring means would include a first probe and a second probe. The first probe would be placed on a first location on the map or globe and the second probe would be placed on a second location on the map or globe. A measure of electrical resistance will be generated by the electrical resistance measuring means reflecting the resistance of the conductive thin covering between the first location and the second location. This electrical resistance is proportionally related to the distance separating the two points on the map or globe.Type: GrantFiled: November 9, 1995Date of Patent: August 19, 1997Inventors: Rollin Reineck, Jerome M. Comcowich
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Patent number: 5598639Abstract: Disclosed is a roll nip tool for making nip width measurements within a high temperature roll nip. The tool includes a first thin section for inserting into the high temperature roll nip. The first thin section includes a first surface that has a first portion of an electrical circuit formed thereon. The first thin section also includes a second thin member that has a second surface and a second portion of the electrical circuit formed thereon. The first thin member and the second thin member are attached together to form a pocket, and are arranged together such that the first and the second portions of the electrical circuit can be brought together into circuit closing contact within the pocket. The first thin section of the tool further includes a mechanism or suitable means such as pressurized air within the pocket for normally keeping the electrical circuit open by controllably separating the first and the second portions of the electrical circuit.Type: GrantFiled: June 7, 1995Date of Patent: February 4, 1997Assignee: Xerox CorporationInventor: Michael B. Webb
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Patent number: 5570514Abstract: There is disclosed a device and method for measuring a crimp height which eliminates the step of re-holding a wire to readily accomplish the application thereof to an automatic wiring assembly fabricating apparatus. The crimp height measuring device includes: a measuring base for placing thereon a crimp terminal of the wire conveyed in a predetermined wire conveying direction by a wire conveying device holding the wire with the crimp terminal projecting in a direction crosswise to the wire conveying direction; a clamp device adapted to displace to a fixing position allowing the crimp terminal to be clamped on the measuring base and to an open position allowing the crimp terminal to be conveyed in the wire conveying direction; and a control device for displacing the clamp device to the open position to allow the crimp terminal to be conveyed when the wire is conveyed.Type: GrantFiled: February 6, 1995Date of Patent: November 5, 1996Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Kenji Hashimoto, Nobuyuki Itaya
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Patent number: 5533271Abstract: A linear test gage for testing the accuracy of machine tools is operable for out of roundness measurements as well as long-range linear measurements. The test gage consists of a linear guide assembly, first and second reference elements, and a long-range linear measurement device. The linear guide assembly includes an elongated guide profile, a guide rail secured to the guide profile, and a slide which is slidably movable relative to the guide rail. The first reference element is attached to the first end of the guide profile and the second reference element is attached to the slide so that the reference elements are relatively movable over a length of about 30-40 inches. A first knuckle assembly secures the first reference element in a fixed position relative to the machine tool. A second knuckle assembly secures the second reference element to an active element of the machine tool.Type: GrantFiled: August 23, 1994Date of Patent: July 9, 1996Inventor: Robert P. Callaghan, Jr.
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Patent number: 5495677Abstract: A digital display micrometer gauge holds a workpiece to be measured between an anvil and a spindle. An engagement member is provided at an end of the spindle. An inner sleeve having an axial slit into which the engagement member is inserted, is secured to a U-shaped main frame, and an outer sleeve having a spiral groove, which is formed in the inner peripheral section thereof, is provided on the outer periphery of the inner sleeve to be circumferentially rotatable. By rotating this outer sleeve, the spindle can be driven at high speed. A main scale constituting a linear encoder is attached to a side surface of the spindle extending along the axis of the spindle, whereby the displacement amount of the spindle can be detected with high accuracy. A slide member slidable on the inner surface of the inner sleeve is provided at the end of the spindle where the engagement member is provided, and the spindle can be inserted into the inner sleeve together with the main scale attached thereto.Type: GrantFiled: September 28, 1994Date of Patent: March 5, 1996Assignee: Mitutoyo CorporationInventors: Masahiko Tachikake, Masamichi Suzuki
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Patent number: 5493786Abstract: A real estate electro tape is provided that measures the length of an interior or exterior wall or other similar structure using optical means. A sonic tape is used to measure the perpendicular distance from the device to the interior or exterior wall. Two steerable lasers are then used to determine the angles between the perpendicular and the beams aimed at the wall edges. An algorithm is applied to the angular and perpendicular distance data to obtain the length of the wall. A microprocessor performs the calculations, the results of which are displayed on an electro optical display.Type: GrantFiled: January 9, 1995Date of Patent: February 27, 1996Inventor: Christopher S. Thomson
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Patent number: RE37490Abstract: An electronic caliper having a reduced offset position transducer that uses two sets of coupling loops on a scale to inductively couple a transmitter winding on a read head on a slide to one or more receiver windings on the read head. The transmitter winding generates a primary magnetic field. The transmitter winding is inductively coupled to first loop portions of first and second sets of coupling loops by a magnetic field. Second loop portions of the first and second sets of coupling loops are interleaved and generate secondary magnetic fields. A receiver winding is formed in a periodic pattern of alternating polarity loops and is inductively coupled to the second loop portions of the first and second sets of coupling loops by the secondary magnetic fields. Depending on the relative position between the read head and the scale, each polarity loop of the receiver winding is inductively coupled to a second loop portion of either the first or second set of coupling loops.Type: GrantFiled: March 16, 2000Date of Patent: January 1, 2002Assignee: Mitutoyo CorporationInventors: Nils I. Andermo, Karl G. Masreliez
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Patent number: RE36257Abstract: A real estate electro tape is provided that measures the length of an interior or exterior wall or other similar structure using optical means. A sonic tape is used to measure the perpendicular distance from the device to the interior or exterior wall. Two steerable lasers are then used to determine the angles between the perpendicular and the beams aimed at the wall edges. An algorithm is applied to the angular and perpendicular distance data to obtain the length of the wall. A microprocessor performs the calculations, the results of which are displayed on an electro optical display.Type: GrantFiled: October 16, 1997Date of Patent: July 27, 1999Inventor: Christopher S. Thomson