Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7617609 | Coursing tool calculator A tool is provided for calculating the length and number of filler design elements to be used to eliminate an irregular gap in a wall being covered with cast veneer wall panels having a series of repeating design elements. The tool includes a ruler having gap measur... | 11/17/2009 |
| 7310883 | Sizing scheme to improve clothing size accuracy Methods to implement a sizing scheme to better quantify and more accurately represent clothing sizes. One embodiment is a method of providing an article of clothing after receiving the size alphanumeric characters determined from a sizing chart. A second embodiment ... | 12/25/2007 |
| 7251903 | Method for spacing guides on fishing rods and chart for spacing same A chart for locating guides on a fishing rod comprising a plurality of side by side lanes each having a vertical portion and in a predetermined plane and arcuate lane portions of different radii and curved through an arc of about ninety degrees (90°) from said pred... | 08/07/2007 |
| 7210237 | Measuring tool device A measuring tool device comprises a horizontal module including a depressed surface, an upper semicircular hollow, and a lower semicircular body; an upper cover module including a calibrated line at its periphery; and an accessory module in a semicircular protruded ... | 05/01/2007 |
| 7204034 | Method for spacing guides on fishing rods and chart for spacing same A chart for locating guides on a fishing rod comprising a plurality of side by side lanes each having a vertical portion and in a predetermined plane and arcuate lane portions of different radii and curved through an arc of about ninety degrees (90°) from said pred... | 04/17/2007 |
| 7191530 | Compass assembly A compass assembly includes a tape measure apparatus that includes a housing and a tape measure removably extendable outwardly of the housing. A disc has a top side, a bottom side and a peripheral edge. The disc has a centrally located opening extending therethrough... | 03/20/2007 |
| 7152332 | Navigational assist system Disclosed is a navigational assist system to assist a pilot or other person in the entry into an entry environment, such as a holding pattern or runway traffic pattern. The navigational assist system is comprised of a plurality of entry determining elements moveably... | 12/26/2006 |
| 7134218 | Odd offset fabrication kit A template that would be created with a given line for outside, centerline and inside radius of ell marked in one degree increments, starting with zero degree from the end of each radius of ell and ending at ninety degrees. Incorporated on the template would be a sk... | 11/14/2006 |
| 7100295 | Measuring device A measuring device includes a square ruler body provided with a plurality of scales, a plurality of marking lines, and a plurality of counting numbers. Each of the counting numbers has a corresponding numeral which is located under the respective the counting number... | 09/05/2006 |
| 7003383 | Flight management system using holding pattern entry algorithms The present invention provides a set of holding pattern entry algorithms used to define flight segments for entry into holding patterns. These geometries preferably describe the specific location and distance of various segments used in the holding pattern and holdi... | 02/21/2006 |
| 6973737 | Brushfire rate of spread tool A tool is triangular in shape and made of a clear plexi-glass. The tool contains two types of rate of spread scales, historical and real time. The historical rate of spread scale is based upon previous large-scale brushfires, while the real time scale utilizes GPS t... | 12/13/2005 |
| 6938897 | Universal role playing game elevation indicator system A universal role playing game elevation indicator system for efficiently indicating elevation measurements of playing pieces used in role playing games. The universal role playing game elevation indicator system includes a support member having a lower end and an up... | 09/06/2005 |
| 6907674 | Electrical conduit layout template A template provides a quick and accurate method for marking locations of conduit entry holes to be formed in an electrical panelboard. The template is a rectangular sheet that is divided into longitudinal spacer zones, transverse spacer zones, a longitudinal marking... | 06/21/2005 |
| 6854190 | Calculator for offset pipe fitting A special offset calculator for determining the angle of a pipe fitting. The special offset calculator includes a background sheet having an offset value table with offset values representing various offset distances between two pipes to be connected. A transparent ... | 02/15/2005 |
| 6694636 | Electrocardiogram compass The specification discloses a compass for obtaining measurements from an electrocardiogram tracing, the comprising a compass body, a display screen, compass legs pivotally connected to the body, and a computer operatively coupled to the display screen. Th... | 02/24/2004 |
| 6658746 | Navigation plotter A navigation plotter is made of a thin, flexible, transparent, light weight plastic with a straight-edge. The straight-edge has a distance scale. There is an reference point at the mid-point of the distance scale used to determine true course. The remaind... | 12/09/2003 |
| 6568092 | Angle cosine indicator The invention relates to a targeting device comprising a casing which houses a wheel. The wheel is weighted and free to rotate relative to the casing. A mount on the casing mates with a receiving apparatus on the rifle, thereby securing the casing to the ... | 05/27/2003 |
| 6453572 | Floor covering estimating device A device for estimating the length of the floor covering needed from a roll of floor covering having a predetermined width to cover a room, including any fill area based on a scale diagram of the room showing walls bounding the room. The device comprises ... | 09/24/2002 |
| 6418630 | Deviation calculation rule used to monitor the drilling path of a two dimensional deviated hole The invention relates to a deviation calculation rule of the circular type for the monitoring of a two-dimensional deviated well path. The rule consists of a support plate (10) on which is marked a circular dial with two semi-circular scales (G1 | 07/16/2002 |
| 6343423 | Indicator means for determining miter and bevel angles for sawing container panels A base is provided with right angularly disposed scales marked in degrees starting from zero degrees at an intersection of the scales. Indicators are elongate and pointed at their ends and each of different length. Placement of an indicator on the base in... | 02/05/2002 |
| 6305094 | Apparatus for detecting indicia Apparatus for detecting indicia on a document, such as a lottery ticket, which is a flat template having two side edges that are parallel to each other, one of the edges also serving as a guide for the document that has indicia thereon to be detected and ... | 10/23/2001 |
| 6276069 | Brassiere sizer A brassiere sizer includes a housing having a front, side, and rear walls. A first set of indicia is provided on the front wall and comprises length increments equally spaced apart and disposed in a circular array on the side wall and a second indicia is ... | 08/21/2001 |
| 6240647 | Orienteering compass and distance measuring device The invention relates to an orienteering compass comprising a distance measuring device (4) including a circular element (11) to be rotated over a map from an arbitrary point A to an arbitrary point B for determining the distance from point A to point B. ... | 06/05/2001 |
| 6067719 | Ratio ruler for comparative judgments A ruler device for eliciting judgements about the ratio of factors includes a first base member having first indicia indicating the ratio of factors, and a second base member slidably mounted to the first base member. The second base member moves longitud... | 05/30/2000 |
| 5896671 | Universal scale and conversion tool The present invention relates to a measuring device, conversion device or ruler having specifically or universally selectable scales which can be used to measure distances with a desired linear or logarithmic scale, to draw distances to a desired scale, o... | 04/27/1999 |
| 5555628 | U-bolt torquing tool A method of determining the optimum torque for securing a U-bolt assembly calculated according to the formula T=UL.multidot.d.multidot.K.multidot.LF, where T is the optimum torque, UL is a calculated value for the ultimate tensile load of one U-bolt leg, ... | 09/17/1996 |
| 5537752 | Method and apparatus for directing community response to hazardous material release The present invention provides an apparatus for determining and directing community response to a material release, such as a hazardous gas release. The apparatus includes a map with a rotatable warning indicator attached thereto. The warning indicator ha... | 07/23/1996 |
| 5496070 | Calendar date monitoring system A calendar date monitoring system particularly effective for monitoring pregnancy and other medical conditions is disclosed. The system includes a substantially flat calendar strip, which includes a first set of indicia arranged longitudinally on the cale... | 03/05/1996 |
| 5477617 | Carpet measurement tool A carpet measurement tool comprising a rigid rectangular plate having an upper surface, a lower surface, a pair of opposed long edges, and a pair of short edges extended therebetween; a distance ruler with a set length and scaling disposed on the upper su... | 12/26/1995 |
| 5475929 | Device and method for estimating percentage of calories from fat A device and method of estimating a percentage of calories derived from fat contained within each serving of a food product when the amount of fat by weight and total calories per serving of the food is known or may be estimated. The device includes viewa... | 12/19/1995 |
| 5461792 | Navigation aid with biangulation A navigation device is disclosed, having a lens across an opening at one end of a case, and a compass across an opening at the opposite end of the case. A transparency holder is positioned between the lens and the compass, adapted to receive a map transpa... | 10/31/1995 |
| 5412874 | U-bolt torquing method and tool A method of determining the optimum torque for securing a U-bolt assembly calculated according to the formula T=UL.multidot.d.multidot.K.multidot.LF, where T is the optimum torque, UL is a calculated value for the ultimate tensile load of one U-bolt leg, ... | 05/09/1995 |
| 5265344 | Relative motion pinwheel An apparatus for visualizing relative motion between two moving objects in two-dimensional plane is provided. A planar base has a first compass rose printed thereon. Rotatably attached to the center of the first compass rose is a means for indicating a pr... | 11/30/1993 |
| 4835870 | Device for measuring the distances and directions of destinations on road maps A device for measuring the distance and direction of destinations on road maps from a starting point is suggested which serves for the data input of intermediate destinations in navigation devices. The device comprises an angle measuring plate (10) with a... | 06/06/1989 |
| 4637143 | Plotting device A course plotting device comprises substantially parallel first and second legs, substantially parallel third and fourth legs which are pivotally connected to the first and second legs so that they cooperate therewith to define a collapsible parallelogram... | 01/20/1987 |
| 4621429 | Drafting vehicle simulator A vehicle simulating frame assembly is supported on a track recording surface by pairs of non-dirigible tractor wheels spaced laterally outward of track marking devices plotting parallel spaced track lines on the surface in response to wheeled movement of... | 11/11/1986 |
| 4606127 | Large pattern transposing An image layout arrangement suitable for transposing small template located images into large work surface located images with any required degree of image resolution and detail, using simple, low-cost tools. An exemplary layout of aircraft images to a ru... | 08/19/1986 |
| 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 |
| 4468860 | Measuring device A measuring device having a pair of pivotally moveable styli connected together by means of a potentiometer, for varying electrical resistance in accordance with the angular disposition between the styli. The measuring device further comprises a source of... | 09/04/1984 |
| 4217696 | Time-distance calculator A device for measuring linear or curvilinear map distance and determining the rate or time of travel represented by such distance. The device includes an elongate, hollow body having a slot extending along a portion of its length, an indicator shiftable a... | 08/19/1980 |
