Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8028429 | Apparatus for hanging objects An apparatus for hanging an object from a wall comprises a generally triangular-shaped frame having a horizontal portion, a vertical portion and cross-member between the vertical and horizontal portions. The vertical portion is configured for attachment to a wall st... | 10/04/2011 |
| 7513054 | Construction layout and angle measurement tool A construction layout and angle measurement tool includes opposite working sides having unique indicia for establishing angles from side edges or corners of building materials. When used with a reference line, and when attached to the workpiece, the tool allows site... | 04/07/2009 |
| 7398601 | Carpenter's pitch square A carpenter's square includes a triangular base having first and second sides joined to form a right angle. A first elongated slot is disposed within the base parallel to a third side thereof; and a pin is selectively positionable along the length of the slot. The p... | 07/15/2008 |
| 7350517 | Tile saw guide apparatus A tile saw guide apparatus comprising a right-angle triangle shaped guide body and an attachment structure. The right-angle triangle shaped guide body includes a tile receiving space accessible through a first non-hypotenuse edge of the right-angle triangle shaped g... | 04/01/2008 |
| 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 |
| 7299559 | Construction layout and angle measurement tool A construction layout and angle measurement tool includes opposite working sides having unique indicia for establishing angles from side edges or corners of building materials. When used with a reference line, and when attached to the workpiece, the tool allows site... | 11/27/2007 |
| 7266899 | Speed level The present invention provides a combination tool for use by an individual workman, without resorting to assistance by another workman, for laying out horizontal and plumb lines in a confined space, such as that found in a shower stall, bathtub enclosure, or firepla... | 09/11/2007 |
| 7254855 | Multi-purpose hand tool and scribing apparatus utilizing multi-purpose hand tool A multi-purpose hand tool has a first member having a first portion and a second portion. A second portion member is slidably and pivotally coupled to the second portion of the first member. A coupling assembly pivotally couples the second member to the second porti... | 08/14/2007 |
| 7222435 | Self measuring workpiece An elongated construction workpiece having a viewable surface and adapted to be cut to a measured length or width at a work site, wherein the workpiece is provided on a viewable surface adjacent one or more of its edges with linear measure markings whereby a desired... | 05/29/2007 |
| 7219440 | Lay-out tool and assembly A lay-out tool assembly includes a square having a base component with a straight edge and with trough structure in which a carpenter's pencil is seated, an abrasive area for sharpening the pencil, and wall structure on which a tape measure is mounted for use in coo... | 05/22/2007 |
| 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 |
| 7181887 | Framing lumber products and methods Lumber having stud locator markings spaced along lengths thereof. The marked lumber assists in layout and assembly of a frame wall comprising bottom plate, top plate, and a plurality of studs extending between the bottom and top plates at one or more of a limited nu... | 02/27/2007 |
| 7174653 | Method and device for marking trim miters for a bull-nose corner A method and device for marking trim miters for a bull-nose corner is provided. Embodiments for wainscotting, crown molding and baseboard are also disclosed. The device comprises a molded, hand-held structure which envelopes a portion of the bull-nose corner and pro... | 02/13/2007 |
| 7174650 | Sliding ruler square The present invention is a sliding ruler square that provides an adjustable and extendible straightedge element permitting a user to conveniently scribe lengthy cut lines at pre-selected angles across a work piece typically utilized in the construction industry with... | 02/13/2007 |
| 7171755 | Picture hanging level A level designed for use in hanging pictures is disclosed. The level is proportioned to be easy and convenient to use in conjunction with a picture frame, having a pair of perpendicular legs that can rest on a corner of a picture frame and a level vial positioned wi... | 02/06/2007 |
| 7124668 | Alignment device An alignment device including a body having an alignment edge configured to guide a cutting device, an extension portion pivotal relative to the alignment edge, and at least one cutting-line indicator configured to be selectively positioned on the extension portion ... | 10/24/2006 |
| 7114264 | Length adjustable rafter square A rafter square is provided with a triangular base plate, having a flanged base edge portion, a side edge portion, and a hypotenuse edge portion. An extension arm is selectively movable from a retracted position, closely adjacent the hypotenuse edge, to an extended ... | 10/03/2006 |
| 7089679 | Measuring apparatus and method therefor An apparatus for measuring linear distances comprising a wheel to be rolled along a surface to be measured, wherein the wheel comprises a plurality of incremental line markers to facilitate measurement of selected intervals, and wherein the wheel is maintained withi... | 08/15/2006 |
| 7055256 | Plumb bob square bracket A plumb bob bracket is disclosed for use in building construction having a first stud wall and a second stud wall each having an upper beam, a lower beam, and a plurality of vertical beams therebetween. The plumb bob bracket includes a first leg, a second leg attach... | 06/06/2006 |
| 7051446 | Construction layout and angle measurement tool A construction layout and angle measurement tool includes opposite working sides having unique indicia for establishing angles from side edges or corners of building materials. When used with a reference line, and when attached to the workpiece, the tool allows site... | 05/30/2006 |
| 7040035 | Tape measure with combination wheeled directional controlling device and marker A marking tape measure having a marking applicator, which is selectively engageable, adjacent this applicator being a wheel or other directional guide for guiding the applicator generally perpendicular to the direction the tape measure's tape blade extends from the ... | 05/09/2006 |
| 7028446 | Construction layout stripping having a plurality of pairs of uprights thereon A construction layout stripping and method for laying out construction members or framing members at a fixed distance interval from one another. The construction layout stripping comprises: first, a pliably, non-elastic elongated base; and second, repeating units di... | 04/18/2006 |
| 7024788 | Datum point adaptor for vehicle gauging apparatus A datum point adaptor (1) is secured to reference points such as holes, bolts or studs, which form measurement reference points for measuring the alignment of vehicles, especially in the case of collisions and panel beating. The datum point adaptor (1)... | 04/11/2006 |
| 6964112 | Measuring instrument A device for measuring and marking lines and points on a steel I-beam includes a rib for contacting the outside of an I-beam flange along a line opposite the center of the beam web, a measuring blade that rests on the beam web and measures distances from the outside... | 11/15/2005 |
| 6941605 | Multi-purpose hand tool and scribing apparatus utilizing multi-purpose hand tool A multi-purpose hand tool has a first member having opposite main surfaces and an elongated slot extending through the the main surfaces. A second member is slidably and pivotally coupled to one of the main surfaces of the first member. The second member has opposit... | 09/13/2005 |
| 6935041 | Modular framing tool Disclosed is a modular framing tool and a method for beam framing. The modular framing tool of the present invention comprises alignment members attached to a common body portion. In one embodiment, the tabs are permanently and rotatably attached with a locking mech... | 08/30/2005 |
| 6932336 | Construction board A mixing and measuring tool formed of high molecular high density polyethylene enables a mason to precisely mix and provide an accurate amount of mortar to each brick saving wasted mortar. The tool presents a frictionless, hard cutting surface for cutting brick or s... | 08/23/2005 |
| 6920735 | Block positioning tool A block positioning tool includes a first elongated member and a second elongated member attached together such that a L-shaped frame is formed. The frame has an upper surface and a bottom surface. The first and second elongated members each have a slot therein exte... | 07/26/2005 |
| 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 |
| 6901680 | System for spacing flutes on a workpiece A system, apparatus, and method for spacing and aligning flutes to be routed in a workpiece is disclosed. The system includes a flute-spacing jig with spaced alignment holes, a workpiece aligner, and a fence guide. Additionally, the system can include a T-square wit... | 06/07/2005 |
| 6886268 | Siding installation tool and method of installing siding A siding installation tool is provided comprising a main body portion including a spacing flange. The spacing flange includes a hook member disposed to hang the tool from a top edge of a first siding panel and a seat member disposed to receive the bottom edge of a s... | 05/03/2005 |
| 6868616 | Builder's measuring and marking tool In one aspect of the invention, a builder's measuring and marking tool is provided. The tool comprises a planar member having a right triangle configuration, including a first side edge, a second side edge extending normal to the first side edge, and a third side ed... | 03/22/2005 |
| 6758016 | Adjustable support for steps A support for steps, having the shape of a triangular corner plate to be installed one after the other along a stringer. The sides of this support are reinforced, horizontally and vertically by a 90 degree fold, to fix the steps and risers. The ends are wider and po... | 07/06/2004 |
| 6725556 | Rafter tool and method A rafter tool and method includes a rafter square portion, a base portion, an extension member, an L-bar and a support bracket. The extension member, such as a string, may be wrapped within the base portion during storage of the rafter tool and can be extended betwe... | 04/27/2004 |
| 6688014 | Builder's measuring and marking tool A measurement or marking tool such as a roofer's square having a right triangular configuration'including a first straight edge having an abutment ledge therealong'a second straight edge extending at a right angle to the first straight edge, and a third s... | 02/10/2004 |
| 6629372 | Modified square A squaring tool formed of a flat piece of rigid material having a primary "L" configuration, including a first horizontal blade and a first vertical tongue, said first horizontal blade and said first vertical tongue lying in a common plane and intersectin... | 10/07/2003 |
| 6578278 | Saddle protractor An angle measuring tool for us in combination with a standard framing square. A saddle protractor having a plurality of alignment tabs is engaged with a standard framing square by placing the saddle protractor in fact to face contact with the framing squa... | 06/17/2003 |
| 6513257 | Method and apparatus for determining scale in photographic images An apparatus and method for determining scale in captured images is disclosed. The apparatus includes a rectangular and generally flat frame device for determining scale in captured image. The frame has measurement indicia located along the inside edges a... | 02/04/2003 |
| 6442856 | Extendable tool for use marking angular lines An expandable tool for laying out and marking predetermined angular layout lines on a work surface. The tool is comprised of a first leg (202), second leg (204), and hypotenuse leg (206) which are assembled by the user such that the intersection of the fi... | 09/03/2002 |
| 6408529 | Multi-purpose framing square A multi-purpose framing square for 2× dimensional lumber includes an elongate rectangular body with a width of 2× dimensional lumber and an L-shaped crossbar centrally attached at one end. The inner edge of the crossbar establishes a pivot point for rot... | 06/25/2002 |
