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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8015719 | Electricians square A tool for measuring and marking conduit entry holes in a distribution box. The tool includes a rectangular ruler having a short edge attachment groove proximal to a short edge of the ruler which is configured for engagement by a locking assembly. The tool further i... | 09/13/2011 |
| 7954249 | E-Z riser stair guide A template guide which performs and simplifies the task of layout for stair stringers. This accomplishment has previously been made by the use of multiple tools including the framing square, multipurpose square, and speed square as well as others. The said template ... | 06/07/2011 |
| 7861428 | Push stick with slide-out ruler A push stick comprises a body providing a bottom surface and a heel member that protrudes beyond the bottom surface; and a slide-out ruler that is selectably positionable to extend from the body. The push stick is a safety device that can be used to push a workpiece... | 01/04/2011 |
| 7788816 | GPS coordinate transformer A coordinate transformer that includes foldable horizontal and vertical members utilizes GPS provided map coordinates to assist with location determination on a handheld map. Typically, GPS receivers provide accurate location information but their display size, memo... | 09/07/2010 |
| 7627955 | Stringer guide template A template guide which performs and simplifies the task of layout for stair stringers. This accomplishment has previously been made by the use of multiple tools including the framing square, multipurpose square, and speed square as well as others. The said template ... | 12/08/2009 |
| 7337550 | Combination square Novel combination squares for magnetically retaining a magnetic rule-type blade in a blade retaining slot. Novel combination squares including an L-shaped rule-type blade. ... | 03/04/2008 |
| 7271576 | Hand held antenna/network impedance analyzer A handheld portable battery powered digital antenna and/or network analyzer which derives complex impedance values at a given frequency includes an internal direct digital synthesis generator and provides software-defined multiple operating modes and real time graph... | 09/18/2007 |
| 7254898 | Multi-purpose speed square A multi-purpose framing square has an elongate blade having a T-shaped slot with an L-shape at the base of the T-shaped slot. A handle has a top end has a handle thumbscrew hole. The handle is boltably attached through the handle thumbscrew hole to the blade through... | 08/14/2007 |
| 7234253 | Advertising/promotional display system with integral sound generating means By providing a pre-printed housing member which automatically expands from a flat, generally two-dimensional configuration into a three-dimensional promotional display and also incorporating a sound generator which is activated simultaneously with the movement of th... | 06/26/2007 |
| 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 |
| 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 |
| 7159328 | Measurement gauge incorporating a level Apparatus 10 discloses a handle 32 for manipulating the device and an extending rule portion 18 having a series of markings or measurements 26 embossed along its edge serving as a base of spacing measurement for a pivotally mounted swing ... | 01/09/2007 |
| 7059225 | Holder device for attaching a circular saw to a T square A holder device attaches a circular saw to a T square. The device includes a body having opposite left-hand and right-hand ends and opposite forward and rearward sides that extend between the ends. A passageway formed through the body interconnects the left-hand and... | 06/13/2006 |
| 7020978 | Adjustable position tool guide An adjustable position tool guide is disclosed for performing operations with tools on a work piece at an accurate distance and orientation with respect to edges or other features of the work piece in a highly convenient manner. The tool guide includes a base for po... | 04/04/2006 |
| 6931735 | Window treatment hanging tool A window treatment hanging tool is made up of two right angled shaped guide components. The first guide component has dual arms positioned perpendicular to each other, each with channeled pathways. The second guide component also has dual arms in perpendicular relat... | 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 |
| 6904689 | Guide device A guide device for cutting lap joints includes a frame and a rectilinear guide member, the frame having a Y-like shape and consisting of a removable top portion and a bottom portion forming a yoke therebetween at the upper portion of the Y-like frame. The lower port... | 06/14/2005 |
| 6769190 | Adjustable viewing frame An adjustable viewing frame (27) for use by artists to help compose a view comprises two frame members (10,11) each having two frame links (21,22,23,24) at right angles to one another. The frame links (21,22,23,24) have a rib (30) ... | 08/03/2004 |
| 6691422 | Photographic cropping method and device A novel photographic cropping method and device, which may eliminate the need to cut or mark photos being cropped, is disclosed.... | 02/17/2004 |
| 6604296 | Framing speedsquare attachment A Framing Speedsquare Attachment is disclosed. Also disclosed is an attachment that includes a segment for slidingly attaching a conventional Speedsquare thereto. The attachment further includes a telescoping extension having a measuring scale on its top ... | 08/12/2003 |
| 6591511 | Framing square An improved framing square having integral features for automating the marking and cutting of angles. The square contains two sliding carriages--one in the body and one in the blade. Each carriage has a deployable pin. In order to set an angle, the user f... | 07/15/2003 |
| 6553677 | Combination square A combination square including a body including two opposing members, each having a plurality of straightedged surfaces, and a clamping element adapted to clamp the opposing members together, the opposing members defining a recess therebetween for receivi... | 04/29/2003 |
| 6421927 | Measuring tool A measuring tool for measuring in two directions orientated perpendicular to each other such that obstructions may be accurately measured. The measuring tool includes an elongated member having a first end, a second end, a top side, a bottom side, a front... | 07/23/2002 |
| 6134797 | Device and method to define angles on a workpiece A device for laying out an angle to form a borderpiece for a roof from a standard workpiece. The device includes first and second members, contact elements extending from each member. The contact elements contact opposing edges when the device is disposed... | 10/24/2000 |
| 6119354 | Trammel adaptor for a square head A trammel adaptor for a square head. It has a right angle bracket having a vertical leg and a horizontal leg. A vertically extending left flange is connected to the left edge of the vertical leg and they intersect each other at an acute angle A. A vertica... | 09/19/2000 |
| 6105266 | Carpenter's roof pitch measuring device A carpenter's "square" has a first member with a spirit level so it can be held horizontal with one end elevated above a pitched roof, while the opposite end rests on the roof exactly 12 inches from the inside edge of a vertically movable member supported... | 08/22/2000 |
| 6101729 | Power saw guide An apparatus and method of using a power saw guide for use with a power saw having a sole plate with a fence-following surface spaced a set distance from a sawing plane of the power saw. The power saw guide comprising a long leg and a short leg that are m... | 08/15/2000 |
| 5915808 | Power saw guide kit A combination carpenter's square and saw guide, and a conversion kit for converting an existing carpenter's square to such combination, utilizes a standard L-shaped square with a channel mounted on each leg of the square and extended in the same direction... | 06/29/1999 |
| 5832618 | Combination level and T-square A combination level and T-square comprising an elongate level sensing section and an elongate T-bar section which can be alternately removed from or rigidly connected to the level sensing section in three locations to form three different configurations, ... | 11/10/1998 |
| 5813126 | Speed square extension bar and saw guide A channel extending longitudinally through an extension bar snugly but slidably receives the base flange of a speed square. The extension bar can be locked in a desired position relative to the square, and has mechanism for mounting a stop peg at a desire... | 09/29/1998 |
| 5778547 | Electronic combination square An improved electronic combination square (10) comprising an elongate blade (12) constructed of a nonmagnetic material. An elongate conductor strip (14) constructed of a magnetic material is connected longitudinally into a recessed top surface of the blad... | 07/14/1998 |
| 5471760 | Picture hook locator An apparatus is provided for removable support from a framed member to be hung and with the hanging wire of the framed member being upwardly deflected and tightened as though supporting the weight of the framed member. The apparatus includes an upstanding... | 12/05/1995 |
| 5459937 | Mat board cutting guide A mat board cutting guide for use in cutting mat board for flamed pictures, for example, is disclosed. The cutting guide includes an elongated straight edge having a top and a bottom surface, a first and a second end, and a first and a second edge. The fi... | 10/24/1995 |
| 5410816 | Tile, angle-cutting gauge A body, having a straight-edged rule fixed thereto, and transverse thereto, slidably receives a pair of blocks which also have straight-edged rules fixed thereto. All the rules are parallel, and one thereof is used to engage a proximate wall surface, whil... | 05/02/1995 |
| 5361508 | Tile, angle-cutting gauge A body, having a straight-edged rule fixed thereto, and transverse thereto, slidably receives a pair of blocks which also have straight-edged rules fixed thereto. All the rules are parallel, and one thereof is used to engage a proximate wall surface, whil... | 11/08/1994 |
| 5339530 | Hand level instrument with composite metal and plastic body A hand tool usable as a combination square having a precalibrated angle measuring vial and enhanced tensile strength, comprising a composite metal and plastic body, wherein a frame, including the working surfaces of the tool, is made from metal for precis... | 08/23/1994 |
| 5325899 | Router fixture The present invention relates to router fixture having a base with a base aperture and a pair of slidably adjustable horizontal guides. The router fixture is designed to receive a precut template which defines the area of movement for a router used on the... | 07/05/1994 |
| 5276973 | Combination square, height/width gage This is a height/width gage element for use with an adjustable square; the square has a head portion which is slidable engaged to a base and the base is a straight edge having a side surface with a first engagement slot formed on the side surface extendin... | 01/11/1994 |
| 5133135 | Angle gauge 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 intermediat... | 07/28/1992 |
| 5131164 | Indexing apparatus for aligning cutouts An indexing apparatus aligns cutouts to be formed in a panel with objects which are located on a structure. The indexing apparatus includes a holder having first and second guides. The first and second guides each have a front and rear face and include an... | 07/21/1992 |
