Class 33/479 - T-square

Subclass of Class 33 - Geometrical instruments
Definition: Subject matter comprising a headpiece and a straightedge
No. of patents: 27
Last issue date: 01/19/2010

Number	Title	Issue Date
7647705	T-square with finger guard A finger guard for use with a T-square having a head and a blade includes an elongated body, two finger-shielding surfaces extending along a longitudinal axis of said body for accommodating an installer's thumb, a lower edge on the body that is attachable to the bla...	01/19/2010
7370426	Cutting tee square The apparatus includes a first plate for supporting the first surface of the article adjacent to the edge part of the article, a second plate extending from one end of the first plate in order to support the second surface of the article adjacent to the edge part of...	05/13/2008
7204031	Telescoping T-square The telescoping T-square has a crossbar or cross-member and an extendable shaft or leg. The cross-member is a relatively short bar having a pair of parallel runners longitudinally extending across the length of one surface of the bar and a slot defined through the b...	04/17/2007
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
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
6964111	Folding drywall square A drywall square having a straight long arm of at least forty-eight inches. The long arm has a first end and a second end, wherein the long arm is segmented into a plurality of sections between those ends. A straight short arm intersects the long arm. A first hinged...	11/15/2005
6851201	Drywall T-square An apparatus for marking and scoring a work object has a first member having a first and second side. A flange is connected to a second side of the first member. A second member has a first edge and a second edge. The second member is connected to extend perpendicul...	02/08/2005
6289594	Drywall marking and scoring guide A drywall marking and scoring guide tool having a generally T shape that includes a U-shaped top channel to slidably engage the edge of a drywall sheet, the top channel having a perpendicular stem extending from the channel and incorporating a plurality o...	09/18/2001
6070331	Scoring and marking apparatus having stabilizing wings An apparatus for marking and scoring sheet material having a side edge includes a base having an upper surface and a contact edge adapted to engage a side edge of the sheet material. A trans-base is secured perpendicularly to the base and is adapted to re...	06/06/2000
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
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
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
5353509	Multi-purpose T-square and level combination tool A multi-purpose combination tool for forming an enlarged T-square or, alternately, an elongated carpenter's level to facilitate installation of wall panels, doors, windows, signs and the like. The tool comprises an arm and a cross member rigidly mountable...	10/11/1994
5245758	T-square attachment for carpenter's level An attachment for a carpenter's level to create a T-square comprises an integrally molded head member having a rectangular socket formed therein and extending perpendicular to reference edges defined by opposed parallel spaced-apart side walls. By inserti...	09/21/1993
5182975	Guide for portable power saw A guide for a hand-manipulated power saw having a main support plate, the guide having a sole plate with a saw-guiding edge, and a gauge bar clamp on the sole plate at the bottom surface thereof at right angles to the guiding edge, the clamp having a resi...	02/02/1993
5103570	Square relief device A square device for use by steel fabricators including a blade member and a beam member attached adjacent one end of the blade member whereby the adjacent inner surfaces of the blade member and beam member are at right angles to each other, and an elongat...	04/14/1992
5062213	Construction square The present invention relates to an improved construction square which is both durable, simple to manufacture and use, and inexpensive, and that provides the ability to quickly tighten diverse blade configurations into proper position for use....	11/05/1991
4825559	Pregauging tool for a cutting table A pregauging tool for the stop assembly of a cutting device wherein the pregauging tool has a scale having an elongated configuration and opposed substantially parallel longitudinal edges. At least one series of graduations extends longitudinally along th...	05/02/1989
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
4773163	Marking guide for use with framing studs The disclosed guide, or square, has an elongated planar body, and a planar cross bar angled normal off one end edge of the elongated body, somewhat in the configuration of a "T". One end of the cross bar projects away from the elongated body only a short ...	09/27/1988
4669197	Drawing aid A drawing aid for assisting in the marking of lines or other markings on sheet material incorporates a blade-like portion (2) which is connected with a location region (1A, 2A) which includes means (4, 5) deformable relative to the blade-like portion to b...	06/02/1987
4599805	Transmutable rule A pair of simple rules, each having a body portion identical with a standard rule and a head at one end cooperating with the other rule, for placing the two rules in an arrangement forming a T-square, and enabling one to be moved or slid along the other. ...	07/15/1986
4502232	Carpet layer's wave-form template A wave-form carpet layer's template used for cutting the edges of pieces of carpeting in matching wave-form patterns preliminary to sewing the side edges together in a substantially invisible seam. The template comprises a flat, rigid strip of structural ...	03/05/1985
4494434	Quick positioning cut-off guide for hand power saws This invention provides a quick and accurate gauging means for locating and clamping a guide onto the top surface and leading edge of a workpiece, with respect to the line of cut desired. During execution of the cut, the gauging member of the guide is aut...	01/22/1985
4438538	Combination tool for carpentry The tool incorporates a housing for opposed tape and chalkline reels. The housing has sufficient height to act as, and in conjunction with, an attached abutment, to make the tool useable as a cutting guide square. The abutment surface has the triple funct...	03/27/1984
4306479	Portable power driven cutting tool guide A guide for portable power driven cutting tools comprising a guide member having a surface for placement on a workpiece and a tool guiding edge, and a gauge bar carried by the guide member for positioning the guide member on the workpiece in spaced relati...	12/22/1981
4279081	Wallboard T-square A large T-square having retractable pins for temporary attachment of the T-square to the face of a product such as a gypsum wallboard....	07/21/1981

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Class 33/479 - T-square