Squareness Patents (Class 33/535)
  • Patent number: 9611753
    Abstract: An apparatus for inspecting a turbine blade tip shroud includes a frame comprising a top surface and a bottom surface that is alignable with the turbine blade tip shroud, and, at least one z-notch inspection slot that passes through the frame from the top surface to the bottom surface and is positioned to align with at least one z-notch of the turbine blade tip shroud when the frame is aligned on the turbine blade tip shroud.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: April 4, 2017
    Assignee: General Electric Company
    Inventors: Jacob Andrew Salm, Blake Allen Fulton, Keith Alan Lord
  • Patent number: 9109873
    Abstract: An apparatus for inspecting a tip shroud includes a frame having top and bottom surfaces. A first stop is connected to the bottom surface to contact a first side surface of the tip shroud, and a second stop is in sliding engagement with the frame to contact a second side surface of the tip shroud. A method for inspecting a tip shroud includes placing an apparatus against the tip shroud, wherein the apparatus has a first stop connected to a frame and a second stop in sliding engagement with the frame. The method further includes engaging the first stop with a first side surface of the tip shroud and sliding the second stop with respect to the frame until the second stop contacts a second side surface of the tip shroud.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: August 18, 2015
    Assignee: General Electric Company
    Inventors: Gareth Lewis, John David Ward, Jr.
  • Patent number: 8887406
    Abstract: A footer square apparatus for squaring a building foundation may include a footer square body, a first guide line, a second guide line, and a post receiving opening. The first guide line may be disposed on the footer square body and have a length that is substantially straight. The second guide line may be disposed on the footer square body and have a length that is substantially straight. The post receiving opening may be disposed through the footer square body and may receive a post. The length of the first guide line may be substantially perpendicular to the length of the second guide line. The post receiving opening may be located at the intersection of the first guide line and the second guide line.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: November 18, 2014
    Inventor: Curtis Randy Varney
  • Patent number: 8196306
    Abstract: A method and device for analyzing a formed weld of a wind turbine system is disclosed. The device includes a gage for measuring a distance, a first member configured for receiving the gage, a second member attached to the first member, the second member being configured to releasably attach to a first surface on a first side of the formed weld, a third member attached to the first member, the third member being configured to releasably attach to a second surface on a second side of the formed weld, and the gage being positionable at a plurality of locations on the first member, the plurality of locations including a first location being proximal to the second member and distal from the third member and a second location being proximal to the third member and distal from the second member.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: June 12, 2012
    Assignee: General Electric Company
    Inventor: Kurt Sieber
  • Patent number: 8191275
    Abstract: The disclosure depicts an adjustable square device with a body having a substantially uniform cross-section at planes orthogonal to a longitudinal axis, the cross-section having a generally rectangular outline. A first groove extends inwardly from a first end of the body and oriented generally parallel a bottom surface of the body. A second groove extends inwardly from the first end and is orthogonal the first groove, the first and second grooves intersecting at a vertex. The device also has a tunnel extending from the vertex to a second end of the body, and a blade slidably engagable into one of the first or second grooves.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: June 5, 2012
    Assignee: Whitcomb Machine, LLC
    Inventor: G Matthew Whitcomb
  • Patent number: 8171651
    Abstract: A squareness testing instrument (1, 100, 200) has one or more pairs of arms (2,3, 122,123), such as a one or more pairs of slats or rods, pivotally interconnected using suitable fasteners (4). The one or more pairs of arms are shaped such that they can fit substantially squarely into a corresponding imaginary rectangle (6A, 6B, 106, 206) with at least some arm ends (8, 108, 128, 208) in contact with sides thereof irrespective of the relative pivotal positioning of the arms. The instrument is positionable inside a frame type structure (14, 114) and pivotable apart to try and bring at least some of the arm ends in contact with sides (18, 19, 118, 119) of the structure to test at least one of the squareness and parallelism thereof.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: May 8, 2012
    Inventor: James Williams
  • Patent number: 7987609
    Abstract: A measuring device includes a transfer sleeve, an assist assembly, and a caliper gauge. The transfer sleeve includes two end surfaces and a side surface; the sleeve defines a transfer hole along the longitudinal direction thereof and perpendicular to the end surfaces, and the transfer hole passes through two end surfaces; the transfer sleeve defines a screw hole along the transversal direction thereof in the side surface and communicates with the transfer hole. The assist assembly is screwed in the screw hole, and includes a screw rod, a spring element, and a ball; the screw rod defines a receiving hole therein; the spring element and the ball are inserted into the receiving hole in sequence. The caliper gauge includes a base plate and two side plate extending upright from opposite edges of the base plate correspondingly.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: August 2, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Bing-Jun Zhang
  • Publication number: 20110094118
    Abstract: A measuring device includes a transfer sleeve, an assist assembly, and a caliper gauge. The transfer sleeve includes two end surfaces and a side surface; the sleeve defines a transfer hole along the longitudinal direction thereof and perpendicular to the end surfaces, and the transfer hole passes through two end surfaces; the transfer sleeve defines a screw hole along the transversal direction thereof in the side surface and communicates with the transfer hole. The assist assembly is screwed in the screw hole, and includes a screw rod, a spring element, and a ball; the screw rod defines a receiving hole therein; the spring element and the ball are inserted into the receiving hole in sequence. The caliper gauge includes a base plate and two side plate extending upright from opposite edges of the base plate correspondingly.
    Type: Application
    Filed: April 2, 2010
    Publication date: April 28, 2011
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: BING-JUN ZHANG
  • Patent number: 7918035
    Abstract: A gauge is disclosed for measuring squareness of a skate blade that has a pair of parallel side walls and a pair of bottom blade edges. The gauge includes a squaring frame that has a vertical blade contact surface fixed to a gauge plate. The gauge plate has a horizontal top surface. The vertical blade contact surface is selectively fixed to one of the side walls of the blade with a magnet having at least two parallel faces. Such a magnet is fixable between the skate blade and the blade contact surface. The gauge further includes a blade angle indicator having a flat lower surface and a parallel flat upper surface. Preferably the squaring frame of the gauge further includes an oblong vertical pivot aperture therein and the blade angle indicator includes an aperture therein, such that the squaring frame and the blade angle indicator may be pivotally fixed to each other with a pivot means.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: April 5, 2011
    Inventor: Brian Jarczewski
  • Publication number: 20100319208
    Abstract: A squareness testing instrument (1, 100, 200) has one or more pairs of arms (2,3, 122,123), such as a one or more pairs of slats or rods, pivotally interconnected using suitable fasteners (4). The one or more pairs of arms are shaped such that they can fit substantially squarely into a corresponding imaginary rectangle (6A, 6B, 106, 206) with at least some arm ends (8, 108,128, 208) in contact with sides thereof irrespective of the relative pivotal positioning of the arms. The instrument is position-able inside a frame type structure (14, 114) and pivotable apart to try and bring at least some of the arm ends in contact with sides (18, 19, 118, 119) of the structure to test at least one of the squareness and parallelism thereof.
    Type: Application
    Filed: February 19, 2008
    Publication date: December 23, 2010
    Inventor: James Williams
  • Publication number: 20100275455
    Abstract: A right angle gauge for bench vise includes a square block and having a sliding unit is connected to an operation surface of the square block. The sliding unit includes a rail and an engaging member which slidably connected to the rail. A holding unit is connected to the engaging member and a measuring gauge is pivotably connected to the holding unit. The measuring gauge includes a probe connected thereto. The measuring gauge is adjusted along its angle and position easily so that the measurement is conveniently proceeded and the measuring gauge is able to measure the bench vise from different angles.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Inventor: Sen-Kun Chen
  • Patent number: 7748130
    Abstract: A tool for qualitatively measuring a feature of a skate blade.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: July 6, 2010
    Inventor: James McKenna
  • Patent number: 7546687
    Abstract: Apparatus using two hinged L-shaped squares to determine perpendicular with respect to a plane. Placing the apparatus against a plane with the squares offset angularly with respect to each other and placing an object to be secured to a plane adjacent to the hinge within fins parallel to the hinge permits securing the object perpendicular to the plane with one hand while holding the apparatus and object with the other hand.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: June 16, 2009
    Inventor: David M. Haala
  • Patent number: 7526871
    Abstract: A precision machinist's square comprises a blade and body joined together at a pivot and a drive train operated by relative angular movement between the blade and the body. Movement of the drive train develops a movement in a dial indicator that is a function of the angle between the body and the blade.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: May 5, 2009
    Inventor: Russell Chase
  • Publication number: 20090007448
    Abstract: A tool for qualitatively measuring a feature of a skate blade.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 8, 2009
    Inventor: James McKenna
  • Patent number: 7458168
    Abstract: An apparatus for measuring concentricity of two holes at both ends of a cylindrical member includes a rotation unit supporting and rotating the cylindrical member about one of the holes, and an unit measuring the concentricity by measuring a relative position of an inner circumferential surface of the other hole to the center line of the one hole over the whole inner circumferential surface, while the member is rotated. An apparatus for measuring squareness of one end surface of a partition wall between the two holes in the cylindrical member to a longitudinal center line of the one hole includes, in addition to the rotation unit, an unit measuring the squareness by measuring a relative position of the one end surface of the partition wall along the longitudinal center line of the other hole over the whole circumference of the one end surface, while the member is rotated.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: December 2, 2008
    Assignee: Olympus Medical Systems Corp.
    Inventor: Ayumu Furukawa
  • Patent number: 7434324
    Abstract: A tool for qualitatively measuring a feature of a skate blade.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: October 14, 2008
    Inventor: James McKenna
  • Publication number: 20080184578
    Abstract: A construction tool for stud wall positioning comprising two (2) members of unequal lengths. The shorter member serving as a base with one (1) end abutting the bottom of the stud frame and configured with an adapter cap. The opposite end is configured to act as a female part for the male end of the second member. The opposite end of the second member is placed vertical and diagonally to reach the upper plate of the stud wall frame unit where it connects with a wedge shaped unit that secures the invention to the stud wall frame. The base member offers features to level the inventive device if the floor is not level.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Inventor: Michael Gary O'Brien
  • Patent number: 7191539
    Abstract: The present invention relates to an ice-skate blade edge squareness verification device comprising an indicator element with a plurality of squareness indicia on its face and a verification element removably mounted across a skate blade's edges for verification of squareness of those edges in conjunction with the squareness indicia of the indicator element. The indicator element includes a mounting means comprising a magnet for removably mounting this element onto an ice-skate's blade such that the squareness indicia are perpendicular to the blade's side. The mounting means have a configuration allowing the indicator element to be easily placed and removed from the blade while the blade is held inside a sliding carriage provided to hold an ice-skate during sharpening. The mounting means also allows for continuous visual verification of squareness of a blade edge substantially along the entire length of the blade.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: March 20, 2007
    Inventor: Seymour Zukerman
  • Patent number: 7069778
    Abstract: A fixture and technique for testing a coil spring selected from a supply of springs. Each spring has an unstressed generally helical configuration and the test determines an excess departure from the helical configuration of a spring under a compressive load. The first end of a selected spring is radially fixed in a first guide while a second end of the spring end is axially retained in a movable second guide that is supported on rollers to allow omni-directional transverse radial motion of the second end. An axial compressive force is applied to the selected spring while allowing the second end relatively free radial motion. When compression induced radial motion of the second end exceeds a predetermined threshold, the second end the selected spring closes a normally opened electrical circuit to inform an operator that the selected spring is excessively out of square and should be rejected.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: July 4, 2006
    Assignee: Robert Bosch GmbH
    Inventor: Richard E Strehler
  • Patent number: 6644102
    Abstract: A device for measuring alignment of a golf club is provided, and allows measurement of the lie angle and loft angle simultaneously. The strike face of the club is placed against an abutment member that is fixed to a base member, and held in place with a clamping member. An alignment member is coupled to the base member and spaced from the clamping member in generally opposing relation thereto. The alignment member is movable with respect to the clamping member to receive the golf club shaft in a cradle.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: November 11, 2003
    Assignee: Acushnet Company
    Inventor: Donald T. Cameron
  • Patent number: 6594914
    Abstract: A blade squaring gauge for ice skates is in the form of a small, hand-held disk having the approximate size of a silver dollar. Along the circumferential edge of the disk are slots for truing the edges of the blade. Each slot corresponds to a different arc or curvature of the edge of the blade and provides squareness measurement at that position. A blade can be fitted into a given slot corresponding to the particular curvature on the peripheral blade surface and the squareness of the inner and outer edges of the blade is determined. The gauge eliminates the guesswork in determining trueness of the edge for given blade curvatures along the periphery of the blade.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: July 22, 2003
    Inventor: Kevin Babcock
  • Patent number: 6481113
    Abstract: An accurate, portable skate blade gauge comprises an extruded body having a blade-receiving recess, a clamping screw for pressing the blade against a side wall of the recess, and a pivoted indicator arm having a base near the pivot for engagement with the blade edge, and a pointer remote from the pivot for indicating squareness of the blade. The pivot is a resilient pin of spring metal disposed in a hole in the gauge body and fixed to the bottom of the hole. A clearance between the pin and the wall of the hole allows the pin to flex when the skate blade is pressed against the base of the indicator. The resilience of the pin ensures that the blade remains in firm contact with the base of the indicator arm to achieve precise and accurate measurements.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: November 19, 2002
    Assignee: EdgeInspector, Inc.
    Inventors: Sebastian Brenner, Michael J. Iorio
  • Patent number: 5522147
    Abstract: An improved device and system to precisely locate a point on a workpiece. The device and system is also used to precisely position a work tool with respect to the workpiece. The device incorporates a probe end and a contact end. The contact end has a bottom facing contact surface that is smooth and planar within an exacting tolerance. The probe end may be cylindrical or spherical with a precise diameter B and a rear facing portion. The contact end is slideably positioned with its bottom facing contact surface firmly against a reference surface of the workpiece. The device is positioned in order that the rear facing portion of the probe end is firmly in contact with a second surface of the workpiece. The extensions of the plane of the second surface of the workpiece and the plane of the reference surface form an intersection, either real or imaginary. The plane of the second surface forms an angle with the perpendicular to the reference surface plane at the intersection.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: June 4, 1996
    Inventors: Richard J. Tully, Dennis P. Tully, Steven F. Tully
  • Patent number: 5377419
    Abstract: An improvement to a measuring table for fabricated plate products, such as sheet metal and the like. A measuring table having legs for support of flat table surfaces with opposite sides and ends is equipped with a straight reference gauge extending squarely across the table surfaces near one end and a slot extending at right angles to the straight reference gauge. The improvement to such a measuring table comprises a linearly stationary yet pivotal contact mounted in the slot adjacent to the reference gauge, a pivotal contact movable in the slot by a carriage slide mounted to the underside of the table, and a microprocessor operatively connected to the contacts to receive, store, process and display the measurements therebetween.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: January 3, 1995
    Inventor: Dennis R. Hesseltine
  • Patent number: 5345688
    Abstract: An ice skate blade squaring device comprises a squaring body which is removably mountable to an ice skate blade. The squaring body includes a standard squaring line across one face thereof. Arranged on each end of the squaring line are sets of graduations which are utilized in determining the out of squareness of the skate blade. An angle is provided which is magnetically attachable to the skate blade. The angle is designed to abut against the face of the squaring body having the squaring indica thereon. Once the angle is abutted to the squaring frame, a visual determination of the intersection of a free edge of the angle with the squaring indicia permits a simple and accurate determination of the out of squareness of the ice skate blade. In another embodiment, a squaring body includes an arm pivotally mounted thereto. The arm supports a dial indicator which assists in determining the squareness of the skate blade.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: September 13, 1994
    Inventor: Robert H. Allen
  • Patent number: 5343627
    Abstract: An apparatus and method for measuring the squareness of fabricated plate structures by providing a measuring table having a straight reference gauge extending squarely across the table, and a plunger-operated measuring gauge rigidly mounted on a carriage which is slidably mounted to the underside of the table so as to slide the plunger at right angles to the reference gauge, positioning the plate on the measuring table with a first edge abutting the straight reference gauge, retracting the plunger, moving the carriage which holds the measuring gauge to a position in front of a second edge of the plate, releasing the plunger slowly until it contacts the second edge, activating the measuring gauge, moving the carriage along the length of the second edge and holding the plunger in constant and continuous contact with the second edge to measure deviations from squareness between the first and second edges with the measuring gauge, moving the carriage and gauge with plunger mounted thereon clear of the plate, and
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: September 6, 1994
    Inventor: Dennis R. Hesseltine
  • Patent number: 5231766
    Abstract: A pipe square apparatus and method for facing off the rough cut ends of a pipe. The pipe square apparatus comprising a planar reference surface; and alignment member for aligning the planar reference surface perpendicular to an axis of the pipe. An alternative embodiment of the pipe square apparatus includes an additional arrangement for pivoting the planar reference surface relative to the alignment member, the planar reference surface being locked in any one of a plurality of pivotal positions. The method for facing off the rough ends of the pipe includes cutting the pipe so that the pipe has an axial end; placing the pipe square apparatus on the pipe, the pipe square apparatus having a planar reference surface and alignment member for aligning the planar reference surface perpendicular to an axis of the pipe. The apparatus positioned so that the alignment member is parallel to the axis of the pipe and the planer reference surface abuts the axial end of the pipe.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: August 3, 1993
    Inventor: Ronald M. Pavlak
  • Patent number: 5133135
    Abstract: This invention relates to a gauge device which may be used by a toolmaker or machinist to determine the squareness of surfaces on a workpiece. The device has a handle having a gauge mounted adjacent an end of the arm opposite the handle and an intermediate contact point such that the inner surface of the handle and the intermediate contact point define the planes of the surfaces of the workpiece to be measured. The device is easily used, easily transported, and capable of use with work-pieces having chamfered or otherwise altered corners, holes, slots or other imperfections that make determination of squareness difficult.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: July 28, 1992
    Assignee: Susan M. Durfee
    Inventor: David L. Durfee, Jr.
  • Patent number: 5131161
    Abstract: A guide post and/or master cylinder squareness gage has a vee-block for attaching the gage to a guide post or master cylinder. The vee-block includes a gage stop which bears against the plane surface when the gage is attached to the guide post or master cylinder. The vee-block also includes a measurement indicator mounted to the vee-block which indicator has a biased contact which also bears against the plane surface at a position spaced from the stop. The indicator indicates the deviation in the perpendicularly of the guide post as the gage is rotated around the guide post. The flatness of the plane surface can be measured by rotating the gage attached to the master cylinder on the plane surface. The perpendicularity of the master cylinder can be measured by rotating the master cylinder with the gage held in one position.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: July 21, 1992
    Assignee: Connell Limited Partnership
    Inventor: Gerard Drag
  • Patent number: 5058284
    Abstract: By mounting a longitudinally extending blade with a mounting block for pivotal movement about an axis perpendicular to the longitudinal axis of the blade, in combination with a distance measuring meter mounted to measuring engagement with the movable blade, a precision squareness measuring gauge assembly is achieved for providing highly accurate measurements of the angular relationship of one surface to a reference surface. In the preferred embodiment, the precision measuring gauge assembly also incorporates pivot limiting means for controlling the arcuate distance through which the blade is able to pivot. In this way, the entire arcuate travel distance of the blade is accurately measured and displayed on the meter, thereby providing a direct accurate measurement of any desired surfaces.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: October 22, 1991
    Inventor: James T. Stevenson
  • Patent number: 4805315
    Abstract: A fixture for holding workpieces at predetermined angles while they are being interconnected includes a pair of legs and a hypotenuse forming a right triangle, whose three vertices are truncated to enable the fixture to function as a jig, as a template, or as a bending tool. Workpieces may easily be attached to the fixture, obviating the need for special clamps.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: February 21, 1989
    Inventor: Hugh M. Nesbitt
  • Patent number: 4680869
    Abstract: A cylindrical square for inspecting the angular relationship of a test surface to a vertical support surface on a vertical support member. The flat surface being intended to be perpendicular to the test surface, a dial indicator having a sensing member and a supporting member supported on said support surface. Said dial indicator support being adapted to have a dial indicated thereon to be slid along the top of said cylindrical surface of said cylindrical square whereby the dial indicator will indicate errors in the angular relationship of the vertical surface to the flat test surface.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: July 21, 1987
    Inventor: David Murkens
  • Patent number: 4622752
    Abstract: A gauge for determining whether a conductive element, such as a cutting element, fence, gauge rod, gauge shaft, or guiding surface is oriented at a predetermined angle with respect to a reference surface is disclosed and claimed. The gauge includes an indicator, an electrical energy source, and at least one pair of contacts. When the gauge is placed on the reference surface, the contacts are abutted against the conductive element, and the conductive element is oriented at the predetermined angle, a series circuit is completed between the indicator and the energy source. As one example, the gauge can be used to ascertain the angle of a saw blade with respect to a saw table.
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: November 18, 1986
    Inventor: John Harra
  • Patent number: 4517745
    Abstract: A gauge device has an insert portion having means for aligning the insert portion along a longitudinal axis of an oil drill pipe so that the squareness of a joint shoulder and shoulder available for grinding at a box end of an oil drill pipe can be determined. The insert portion has indicia formed thereon calibrated to read the shoulder available at the box end of said drill pipe. An indicator portion of the gauge device is slideable along the insert portion and has a radially directed annular flange extending perpendicular thereto and perpendicular to a longitudinal axis of the oil drill pipe upon insertion of the insert portion within the box end of said oil drill pipe. The squareness of the outer shoulder of the oil drill pipe can be directly visualized by reference to the annular flange of the indicator portion. Field grinding can then be performed on the box end of the oil drill pipe until a square shoulder is obtained.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: May 21, 1985
    Assignee: Bruce L. Hare, Jr.
    Inventor: Bruce L. Hare