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Class 33/403 - STRAIGHTEDGE TYPE


Subclass of Class 33 - Geometrical instruments
Definition: Subject matter comprising means having a straight edge,
No. of patents: 61
Last issue date: 02/03/2009


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NumberTitleIssue Date
7484306Straight edge clamping device
An extrusion cross-section for a straight edge clamping device including (a) an elongated hollow base having a constant cross-section; (b) a first stop fixed at one end of the base; (c) a second stop movably provided along the base; and (d) a clamp for holding the w...
02/03/2009
7238027Device functionality representation tool
An apparatus for demonstrating cardiac device function and patient cardiac function over time, including a board with a coordinate system representing time, the board having one or more colored areas representing cardiac device function and patient cardiac function ...
07/03/2007
7165334Guide clamp
A guide clamp including a generally, straight elongate guide bar, a first clamp assembly mounted at one end of the guide bar, a second clamp assembly slidingly mounted along the guide bar, the clamp assemblies being adapted to clamp a workpiece therebetween, an end ...
01/23/2007
7162809Power saw guide
The invention is directed to a guide for a power saw or router of the type having a blade and a housing wider than the blade which directly overlies the blade during the cutting operation. The guide includes a guide bar having a straight outer edge configured for gu...
01/16/2007
7043850Transparent measuring device with seam allowance guide
A transparent measuring device having a planar structure, a plurality of markings, at least one window, and a seam allowance guide. The planar structure has an upper surface and a lower surface, and the markings are formed on the lower surface of the planar structur...
05/16/2006
7020978Adjustable 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
7000329Transparent measuring device
A transparent measuring device is disclosed. The transparent measuring device includes a planar structure formed from a sheet of transparent material having a top surface and a bottom surface and at least one raised rib formed of a transparent material on the top su...
02/21/2006
6976318Tape measure
An improved retractable tape measure has, according to a preferred embodiment of the present invention, the features of a standard measure, including a housing with front and rear sides, a boundary edge and a tape opening, a retractable measuring tape positioned wit...
12/20/2005
6904690Pipe size identifier and measuring tool
A pipe size measuring tool for identifying the pipe configuration, i.e., outer diameter and inner diameter, having a plurality of gauges, each gauge having an open mouth therein. The sizes of the open mouth in each gauge are different from each other. The gauges are...
06/14/2005
6049991Picture hanging position marking tool
A picture hanging position marking tool is disclosed having a relatively flat, elongated support arm is a marking orifice at the distal end opposite a support arm handle. The marking orifice is bounded at its lower edge by a support cam, pivotally affixed...
04/18/2000
5964041Guide tool
A guide tool for performing a work function step such as cutting or drawing a line along a workpiece including a guide plate having planar opposite sides, a longitudinal slot, a first straight guide edge substantially parallel with the slot, guide flanges...
10/12/1999
5890524Router table sled
A router table sled for use with a router table and a router table fence includes an arm assembly that rides along the fence and a strut assembly that supports the workpiece. The arm assembly includes a slider that slides along an upper edge of the fence ...
04/06/1999
5771597Device for connecting the arms of an angle
A device for connecting the arms 4 of an angle, in particular a construction angle, comprises a corner piece 1 with two rails 5 which are at right angle to each other and to which the arms 4 which are formed by straight battens are connected by clamping b...
06/30/1998
5533270Method and apparatus for measuring stairs
The invention relates to a method for measuring at least one step of a stair, wherein the riser and tread of the or each separate step are determined, characterized in that at least two steps of the stair are provided, in a corresponding manner, with a re...
07/09/1996
5533556Router guide apparatus
A router guide comprising a channeled track with a fixed fence attached at a top surface of a first end and a moveable fence slideably attached between the first end and the second end. The track affixes to one side of the workpiece and a router attached ...
07/09/1996
5428900Sheet scribing jig
A jig which receives a sheet in a selected position to accurately scribe it in a straight line. The jig has front and rear panels which form a vertical slit between them in which the sheet is received. The bottom of the sheet sits on an elongated support ...
07/04/1995
5343625Portable magnetic drafting board
A drafting board includes a base, a shoulder formed in the perimeter of the upper surface of the base, a magnetic board engaged in the shoulder of the base, two holes formed in the bottom surface of the base, and a rod engaged in each of the holes of the ...
09/06/1994
5271159Circular saw guide
A mitering guide device for a circular saw has a protractor including a curved edge with angle markings thereon. An arm is pivotally attached to the protractor and performs in conjunction with a saw guide for defining an angle to be cut. A hinge is attach...
12/21/1993
5187873Students multi-function protractor
A protractor including a base having a curved surface formed in an upper portion, a disc including a circular outer peripheral surface for slidable engagement with the curved surface of the base, the disc including an opening, a pair of flanges formed in ...
02/23/1993
5172484Angle measuring device for peripheral grinding wheels with tool rests
A device to accurately define the angle relationship between a peripheral grinding wheel and it's tool rest in the vertical plane. The device uses the wheel periphery and tool rest surface to control the angle between the two. It is an 400 accessory to ex...
12/22/1992
5148730Sawmark guide
A saw guide for use with a portable powered hand saw comprises a base which terminates in a saw guiding edge and is hinged to a flap. Means are provided to anchor the base to the work piece. The flap has an extensible end having a transparent portion with...
09/22/1992
5138759Cutting guide and method of making
A cutting guide assembly consists of a pair of guide rails in end-to-end abutting relationship with a clamping plate frictionally engaging each guide rail to secure the rails together. Each guide rail has a cross section defining a channel. A ramped or in...
08/18/1992
5121553Table saw gauge
A table saw gauge includes a body positionable on the table top of a table saw and having a first scale for determining the saw blade height, a second scale for determining the saw blade angle, and a third scale for determining the distance from the saw b...
06/16/1992
5113590Protractor
A protractor comprising a generally flat protractor disc having a straight edge portion and a semi-circular portion. An arm member is pivotally secured at one end to a central section of the straight edge portion and overlies the front surface of the semi...
05/19/1992
5086565Technical drawing apparatus
Drawing apparatus for the preparation of technical drawings has a support for a drawing board on which paper may be attached. The support defines a frame surrounding the board which frame includes an upstanding lip for engagement by drawing instruments. F...
02/11/1992
5084982Combined vernier gauge and protractor
A combined vernier gauge and protractor includes a primary rule having thereon a regular scale, a secondary piece slidable on the primary rule, and a protractor having a straight side pivotally mounted on and alongside the secondary piece. Such a device i...
02/04/1992
4989335Wallpaper knife guide
A guide for guiding wallpaper knife includes a planar member with a right-angled lip formed at a forward end portion of the planar member. The right-angled lip and the planar member form a press for pushing an overlapping sheet of wallpaper into a corner,...
02/05/1991
4944095Guiding device for a computer mouse
There is disclosed a guiding device for use with a computer mouse, the device comprising a body, a friction strip provided on an edge member of the body for securing the mouse to the body while allowing the mouse to operate on a working surface, a bearing...
07/31/1990
4934061Draughting tables, drawing boards, drawing instruments and analogous apparatus
Drawing boards and drawing instruments for use therewith. The surface of the board (1) has a set of parallel-running, evenly spaced magnetic poles (2) across it. Each drawing instrument has a cylinder (10) with similar parallel magnetic poles running esse...
06/19/1990
4924594Double cut edger
This invention pertains to a novel double cut edger which is useful for facilitating the cutting of edges of double lapped wall coverings and the like. An apparatus useful for assisting in cutter edging overlapping sections of adjacent surface coverings c...
05/15/1990
4845858Stud locating tape
In connection with building stud layout, a continuous rollable tape, selectively and adhesively secured to the bottom and top plates of a wall installation, for positively establishing stud locations by providing a series of indicia portions, where like i...
07/11/1989
4805315Free standing squaring tool with open corners
A fixture for holding workpieces at predetermined angles while they are being interconnected includes a pair of legs and a hypotenuse forming a right triangle, whose three vertices are truncated to enable the fixture to function as a jig, as a template, o...
02/21/1989
4791733Student's multi-function protractor
A student's multi-function protractor for conveniently drawing different geometric figures including a transparent middle plate which fits on the retainment space between an upper base and a lower base. The middle plate is rotatable in the retainment spac...
12/20/1988
4779354Variable angle protractor
An improved adjustable protractor including a flat base member in pivoted connection with a pivoting member. The base member is calibrated with degrees indicia. The pivoting member includes an indicia indicator to detect designated degree indicia. Clamp i...
10/25/1988
4734992Drawing instrument
A drawing instrument incorporates two substantially planar members each formed with a straight guide edge and a mechanism connecting the members to permit them to rotate relatively to one another in parallel planes about an axis located in the vicinity of...
04/05/1988
4669197Drawing 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
4654978Marking guide for use with metal studs
The disclosed guide has an elongated planar body and a planar cross bar, angled normal to the body off one end edge thereof, somewhat in the configuration of a "T". One end of the cross bar projects away from the elongated body only a short distance, 1/4 ...
04/07/1987
4633592Precision rule
A precision rule having a handle part, preferably of aluminum, a holding part, preferably of a hardened steel and a rail embedded in a longitudinal groove of the holding part having a measuring edge, preferably of a hard metal. The handle part and the hol...
01/06/1987
4596075Vernier gauge
A vernier gauge includes a first arc member having a first radially inner side and a first radially outer side, a second arc member having a second radially inner side and a second radially outer side slidably engaged with the first radially inner side, h...
06/24/1986
4573276Tool guide
A tool guide for directing hand tools over a workpiece at an angle perpendicular to one edge of the workpiece is disclosed. The guide has two perpendicular legs equipped with flanges for aligning the guide and directing a hand tool along the guide. Measur...
03/04/1986
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