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| Number | Title | Issue Date |
| 7921574 | Ruler with safety shield A tool for aiding marking or cutting is described. A V-shaped member having an edge formed at an exterior apex of the V for guiding a marker or cutting tool. The exterior surfaces of the V-shaped member may have a material applied having a higher coefficient of fric... | 04/12/2011 |
| 7305773 | Hand tool A hand tool of a substantially hexagonal shape to facilitate a variety of tasks, such as pipefitting, is provided wherein the tool includes two 90-degree internal angles formed by the intersection of the sides of the tool. At least one slot is provided along and in ... | 12/11/2007 |
| 7303111 | Lightweight bondhead assembly A bondhead assembly having a bond body for mounting a bonding tool, a support structure that is configured to be drivable for moving the bondhead assembly to different locations and flexural elements arranged substantially along at least one plane which couple the b... | 12/04/2007 |
| 7240596 | Workbench holder system A workbench holder system comprising a stop piece having a height and a thickness and a length in a generally rectilinear configuration with a first end having a first angled cut and with a second end having a second angled cut, one cut being at an obtuse angle and ... | 07/10/2007 |
| 7216438 | One piece centering ruler A centering ruler includes a first straight edge, a second straight edge, an angle θ therebetween, and a measuring scale, marked on both sides of the ruler, which divides the first straight edge into equal increments. To find the center of a straight side of a work... | 05/15/2007 |
| 7073240 | Duct joint layout tool A layout tool and a means for using the tool to fabricate multi-segment elbows and offset joints from rectangular cross-section fibrous air ductboard material. The tool has a triangular main body having at least one structural feature that defines a plane. At least ... | 07/11/2006 |
| 7069659 | Sliding trim marking device and method of using same A trim marking device and method to gauge the span between opposing jambs for subsequent positioning of the device upon a trim piece to be marked and cut, the device including a base member defining a slide groove, a lip extending over the slide groove and in part d... | 07/04/2006 |
| 6922907 | Measuring system for recording absolute angular or position values A measuring system for the recording of angular or position values, wherein the scale includes a measurement track with absolute encoding, and which is scanned by a sensor is provided. The scale is composed of at least two segments with similar absolute encod... | 08/02/2005 |
| 6918189 | Combination layout tool A combination layout tool especially for use in larger building projects that can be used repeatedly to accurately produce different angles and cuts or layouts. The tool is provided with incremental angle slots in radial alignment with a notch in one side edge for p... | 07/19/2005 |
| 6904696 | Method and device for attaching a scale element A method for the directional attachment of a scale element of a position measuring system to an installation face of a first body. The method includes aligning a scale element on an installation face of a first body parallel to a measuring direction via an adjustmen... | 06/14/2005 |
| 6729033 | Three dimensional square tool A generally L-shaped workpiece positioning tool is provided having a base and sidewalls, said base and sidewalls having unobstructed ends and the sidewalls having a void therebetween to space apart the sidewalls. ... | 05/04/2004 |
| 6553678 | Austin triangle I have discovered it is possible to find an indirect measurement if the vertex angle is given and the sides and the diameter are given. Using an instrument having the shape of an isosceles triangle it is possible to have a vertex angle and two congruent s... | 04/29/2003 |
| 6550153 | Window template A template for installing windows in a wall having studs and a wall panel. The template is for a specific shape and size of window and provides the proper dimensions for receiving the window casing and for framing the studs to receive the casing.... | 04/22/2003 |
| 6341427 | Window casing installation tool A small, hand-held tool enables rapid and repetitive placement of window and door casing. The tool is formed from three distinctive, generally rectangular layers. The center, sandwiched layer extends beyond the outer two layers by an amount equal to the d... | 01/29/2002 |
| 6276070 | Quilting tool The quilting tool has at least one surface defining an angle of 116.6 degrees. A transparent plate is imprinted with at least two guidelines allowing the cutting off of a portion of a fabric strip, resulting in a trapezoidal fabric pattern.... | 08/21/2001 |
| 6163970 | Linear encoder with a modular scale and a method of producing same A linear encoder including a modular scale having at least one support and a plurality of graduation carriers mounted on the support and arranged one behind another in a longitudinal direction, with the support and the graduation carriers having substanti... | 12/26/2000 |
| 5802730 | Bat A new Bat for measuring and facilitating marking the interior surfaces of an angled work piece, such as angle iron, which cannot be measured or marked by a conventional square because of arcuate corners and formed edges. The inventive device includes a fi... | 09/08/1998 |
| 5493789 | Miter gauge calibrator A miter gauge and saw blade calibrator is in the form of a flat plate with grooves defined in top and bottom surfaces at various angles. The grooves are sized to receive the bar of a miter gauge so that bar can be elevated above a table slot with its side... | 02/27/1996 |
| 5349758 | Woodworking square having multiple uses A woodworking square having multiple uses. The square may be used to locate long and short points for trimming an opening and may be used to locate pitch line for rafters in a quick, efficient manner. The device also serves as a arc or circle drawing inst... | 09/27/1994 |
| 5305532 | Siding alignment tool A gauge member arranged to include first and second planar side walls arranged in a parallel coextensive relationship having a first end wall spaced from a second end wall having a first step therebetween, a second step is positioned at an uppermost end o... | 04/26/1994 |
| 5201783 | Planar drafting instrument The drafting instrument of the invention (10) disclosed herein generally compromises a planar body in a quadrilateral, symmetrical form, having four perimeter sides (22,24,26 and 28), interconnected end to end to form a quadrilateral configuration and sho... | 04/13/1993 |
| 4976046 | Machine setting gauge A multi-sided gauge and layout tool which includes the five angles needed in order to adjust or set-up woodworking and other machinery to fabricate multi-sided or multi-segmented structures having four, five, six, eight or twelve sides. A large knob with ... | 12/11/1990 |
| 4974330 | Angle drafting set An improved angle drafting set is provided and consists of a trapezium tool and an angle modifier tool. The trapezium tool is so constructed that a person can accurately draw angles in five degree increments between zero degrees and three hundred and sixt... | 12/04/1990 |
| 4893414 | Apparatus for measuring video cassette tape usage A method and apparatus is disclosed for determining the amount of taping time used and/or remaining on standard VHS and Beta format video tape cassettes. Multiple scales are organized onto a single multi sided card having a corresponding number of corners... | 01/16/1990 |
| 4819338 | Drawing instruments A drawing board and drawing instrument combination is provided. The drawing board has grooves along three of its edges and at 45° across the corners which can receive tongues provided on either side of a flat drawing instrument. The instrument has a numb... | 04/11/1989 |
| 4598482 | Rafter cutting template and tape A rafter cutting template and guide for laying out each type of roof rafter for a selected roof pitch given the zero pitch length of the rafter. The template includes a body portion and wing means attached thereto. The body portion is shaped so that each ... | 07/08/1986 |
| 4584775 | Roofers square and cap cutter What is disclosed are novel tools for facilitating the laying of roof shingles so that shingles can be aligned on a roof to give regular and even courses. The tools provide an alignment and spacing of the shingles without the need of utilizing gauges or t... | 04/29/1986 |
| 4551923 | Drawing triangle A drawing triangle is disclosed having 30-, 45-, and 105-degree angles. A perpendicular starting from the vertex of the obtuse angle meets the base at a right angle, from the point where said perpendicular meets said base a set of three reference lines ex... | 11/12/1985 |
| 4545130 | Designer's triangle A designer's triangle which permits completion of a drawing with the use of a single instrument includes a planar sheet having three external edges forming a triangle with angles of 45°, 60° and 75°, respectively. The planar sheet defines three-sided f... | 10/08/1985 |
| 4499665 | Course correction calculator A novel course correction calculator, consisting of a sheet of transparent material 1 with inscribed reference line 2, centering points 3 and 4, radial lines 5 and 6, circular arcs 7 and circles 8, is provided whereby a heading correction and a speed corr... | 02/19/1985 |
| 4490916 | Template for scribing polygons There is disclosed a template for providing multi-sided figures such as figures having 5, 6, or more sides. Essentially, the template is a planar member having a bottom apex. Directed from the apex, at a given angle, with respect to the horizontal, are two ... | 01/01/1985 |
| 4455760 | Triangle This disclosure is directed to a triangle for drafting isometric drawings, the triangle being a generally planar thin body having a periphery bounded by first, second and third edges defining first, second and third corners with the first two corners sett... | 06/26/1984 |
| 4409873 | Modular straight edge A plurality of straight-edge sections may be joined together by connector pieces. The connector pieces and straight-edge sections incorporate cooperating ribs and channels. The connector piece incorporates ribs with provision for flexing. When the connect... | 10/18/1983 |
| 4404753 | Carpenter's saw guide and square A lightweight portable carpenter's tool that singularly performs the functions of triangle, ruler, square, protractor, and leveling device. The special protractor function allows for continuous same plane usage in order to scribe material or to guide a po... | 09/20/1983 |
| 4403423 | Drafting instrument A drafting instrument is provided for making pictorial drawings, especially axonometric projections. The instrument is in the form of a template which is placed over the drafting surface and may be attached to a drafting machine, straight edge, T-square, ... | 09/13/1983 |
| 4338725 | Pipe fitter's quick square A pipe fitter's square has a plurality of linear edges oriented at selected angles to provide easy and accurate alignment of pipe sections. A first edge of the square is parallel to its longitudinal axis. Second and third edges of the square are positione... | 07/13/1982 |
| 4170065 | Marine azimuth and intercept plotter instrument A flat sheet annular ring has a first exterior circular perimeter and a concentric interior circular perimeter. The annular ring has the 360 circular degree compass scale indicia disposed thereon, at least adjacent to the ring interior circular perimeter,... | 10/09/1979 |
| 4166322 | Rulers for making axonometric projection drawings A ruler of transparent material having a first edge parallel to one of the three main projection axes of an axonometric projection drawing and a second edge at a specified angle γ with one of the remaining two main projection axes. The ruler is provided ... | 09/04/1979 |
