Matches 1 - 50 out of 259 1 2 3 4 5 6 >


Match Document Document Title
8793884 Circle cutting tool  
An improved structure of a circle-cutting tool has an outer ring seat having a round hollow groove and a placing surface. A rotary disc is pivoted into the round hollow groove of the outer ring...
7802369 Method for designing structure by drawing curve approximately with circular segment, and structure thereby  
A method for designing a structure or the like is provided in which an arbitrary curve is approximately drawn using a circular segment. This method includes the steps of: setting a straight line...
7707736 Apparatus and method for optimizing a surgical incision on the breast  
A device for establishing an area of incision on a breast includes a positioning component adapted to be positioned on or adjacent to a nipple areola complex of the breast and a template component...
7685719 Circle cutting device  
A rotary disc assembly for use with a cutting tool to cut circles from a material. The rotary disc assembly includes an outer ring frame having an inner flange and a rotary disc, rotatably...
7546686 Drawing apparatus  
A drawing apparatus is provided having a housing, a rotating mechanism and a drawing mechanism. The housing has a circumferential ring gear located within an interior portion of the housing. The...
7421790 Apparatus of and method of use of a radius table and radial template for forming muntin bar patterns for multi-pane window units with overlapping spokes  
An apparatus of a radius table with spokes which supports a glass pane. The glass pane centered by a centering system. The spokes having a measuring device which is urged into contact with the...
7370425 Apparatus of and method of use of a radius table and radial template for forming muntin bar patterns for multi-pane window units  
An apparatus of a radius table with spokes which supports a glass pane. The glass pane centered by a centering system. The spokes having a measuring device which is urged into contact with the...
7174645 Method for designing of aproximate elliptical structure and the same  
A method for designing an elliptical structure with an outline of an approximate elliptic curve, which is generated by connecting circular segments to one another, and an elliptical structure...
7162808 Precision circle center finder and multifunctional construction trade tool  
A measuring instrument is described for application to the end of a circular member, such as a pipe, to locate the precise center of such circular member, and project it to a distant surface.
7140120 Tile measuring device  
A tile measuring device includes a reference bar member having a bottom side with a gap gauge extending therefrom. A plurality of shafts extends through the reference bar member and terminating in...
6932007 Variable pattern making jig for a quilting machine  
A pattern making jig for a quilting machine of the type having a sewing machine moveably mounted on a table includes a pair of jig rails securable to the table and a jig body selectively moveable...
6796047 Angle cutting transfer tool and method  
An angle cutting transfer tool for determining and delineating the midline axis of a joint onto a workpiece for cutting on a saw. The transfer tool includes two leg members pivotally connected...
6523269 Apparatus and method for routing radii and drawing full-scale layouts  
An apparatus and method for routing radii and for producing full-scale layouts is disclosed. The apparatus consists of a guide of smaller radius than the work, a carriage adapted to trace the...
6430820 Marking machine  
A marking machine including a frame, an arm articulated on the frame about an axis of articulation, and a marking tool movably mounted on the arm, The marking tool is movable in translation with...
6378580 Arch cutting jig apparatus  
A jig apparatus that allows one to cut arches in a work piece quickly and efficiently. It is comprised of a bar that has sliding adjustable clamps that secure a cable which go around pulleys on a...
6374503 Oval cutter  
An apparatus for rendering ovals of adjustable sizes and ellipticity upon various materials. An oval cutter comprises a clickerplate for adjusting the ellipticity of ovals in a single movement....
6253456 Basketball court layout device and method  
A device and method to quickly and easily layout various features of a basketball court, including the key area, free throw line, jump circle and three point line, in relation to the location of...
6226878 Method and apparatus for forming decorative patterns in floor coverings  
A method and apparatus for forming decorative patterns in floor coverings. The preferred form of the apparatus includes a marking device having a body member. The body member includes a channel...
6216354 Device for making straight and curved score lines  
A device for forming straight and curved score lines in sheet material. The device has a scoring plate with a top surface with a number of spaced apart curved grooves formed on the top surface...
6213779 Conic section activity boards  
The present invention provides a variety of laminated plastic activity boards that allow the individual to visualize and have interactive exploration of conic sections and their definitions. This...
6158133 Oval cutter  
An apparatus for rendering ovals of adjustable sizes and ellipticity upon various materials. An oval cutter comprises a clickerplate for adjusting the ellipticity of ovals in a single movement....
5933970 Powered toy hand drawing device  
A powered hand drawing device in which a pen is mounted in a barrel casing and operably connected through an eccentric to an electrc motor which rotates a writing tip to describe a related figure...
5918373 Design drawing device  
An improved design drawing device for drawing amorphous patterns is disclosed. The drawing device contains a segmented flexible guide comprised of segments covered with a soft plastic or rubber or...
5870830 Conic section compass  
Conic Section Compass (CSC) is a hand-held drawing device. It applies a mathematics concept. CSC can be used to draw circles, ellipses, parabolas, hyperbolas or make surface curvatures of these...
5860220 Apparatus and method for marking cut lines on pipe to form a variety of pipe fittings and bends  
An apparatus for indicating lines along which cuts are to be made on a pipe has a clamp for attaching to the pipe. A longitudinal guide is fixedly attached to the clamp and a first bracket is...
5651184 Circumscribing apparatus  
A circumscribing apparatus for marking a circular reference line about a cylindrical object has a first side. A first frame member has two spaced-apart guide members extending outwardly on the...
5615485 Instruments for drawing circles  
A device for forming circles on a drawing surface that includes, in part, a first rotatable member and a second rotatable member. The first rotatable member is substantially flat and includes an...
5493780 Tool for carpentry calipers for curved frames with joined end corners  
A device for making a frame having at least two adjacent portions of distinct curvatures with a rounded joint between these two portions comprises a conventional carpentry caliper for outlining at...
5347721 Method and device for drawing curved lines  
A drafting tool for drawing a circle or curved arc has interlocked, independently rotatable concentric rings. The rings have radially extending openings that can be aligned to form a radial track....
5331744 Marker apparatus  
Marker apparatus for using a marker to make a plurality of different designs on a surface including a design ring mounted rotatably on a base and including a plurality of apertures for receiving...
5317808 Hole cutting apparatus  
A circle cutting devices includes a pair of opposing discs rotatably coupled together about a common axis by a spindle extending axially from one of the discs. A spring biasing assembly is coupled...
5285580 Template for marking rounded corners  
A device for making an arc of a predetermined radius at a square corner of a workpiece includes a positioning member having first and second edge members which are joined together at a right angle...
5235754 Beam compass  
A beam compass including a hollow beam, two implement securing units, and a slot communicating with the interior of the beam and extending along at least a portion of the length of the beam and...
5153998 Panel cutting and forming device and method  
A porous panel cutting and forming device and method is provided including a support and guide block with an "L" shaped guide slot into which a pivot guide pin is inserted depending downwardly...
5142788 Laser compass  
A laser compass projects a laser beam along an axis. A mirror is rotated within a rotation plane perpendicular to the axis. The mirror is pivotally adjusted relative to the axis of the laser beam...
5125161 Drafting instrument  
A circle drafting instrument (A) comprises a support member (12) rotatably mounting a slotted disk (10). A line forming point (50) is positioned in a slot (B) at a selected distance from a center...
4878409 Circular mat cutting apparatus  
An apparatus for cutting circular arcs or holes in a picture mat includes a flat base upon which the mat rests and a platform provided above the base . A disc member is suitably mounted for...
4807623 Device for simultaneously forming two incisions along a path on an eye  
An ophthalmic device includes a base, a suction ring connected to the base to secure the device to the eye of a patient, and a support piece carrying a pair of securely ganged cutting blades...
4756086 Pen printer  
A pen printer for performing drawing with a detachably held pen comprises a pen holder operation mechanism for moving a pen holder detachably holding the pen between a pen attaching position,...
4662073 Infinitely variable drawing instrument  
An infinitely variable drawing instrument for producing unlimited varieties of fanciful designs. The designs produced by the drawing instrument are of the repeated individual line type yet indexed...
4624057 Method and template for circle layouts  
A method and apparatus for positioning matting for picture frames and the like under an oval cutter so that ovals or other configurations can be cut in the matting about the perimeter of circles...
4616418 Beam compass having changeable parts  
A beam compass having exchangeable parts for drawing on a variety of surfaces. The central post of the compass is moveable along the beam to vary the radius, and the central post has a rotatable...
4530156 Infinite radius circle drawing instrument  
A device for drawing circles which allows for an infinitely adjustable radius within a given range is provided by the use of a rotatable disk having an access hole therethrough offset from a...
4515649 Thermoplastic elastomer molding  
Disclosed is a lightweight laminate and a method for making the laminate. Protective and decorative molding and trim strips for automotive vehicles and the like can be made from the laminate which...
4449301 Apparatus and method for drawing curves  
A drawing apparatus is disclosed which has two wheels of equal diameter mounted coaxially on a frame. A writing implement is preferably mounted in a aperture at the midpoint of the line defined by...
4423728 Cam-guided trephine  
A cam-guided trephine for selectively cutting a portion of an eye provides a first, vertically disposed blade to provide an annular cut of essentially any practical shape, diameter and depth,...
4120220 Glass cutter apparatus  
Glass cutter (or scoring) apparatus for hand usage adapted to facilitate a preferred cutting procedure wherein the glass to be cut is itself moved with respect to a stationary cutter or stylus to...
4091713 Radius milling or grinding tool actuator or controller  
A tool controlling apparatus for rotating a tool through a circular path of adjustable radius wherein a first plate member is caused to move in a first direction and second plate member is caused...
3927477 Curve-drawing apparatus  
Drawing apparatus useful for tracing parabolic type curves on a coordinate system. The apparatus includes a flexible resilient member having one end fixedly attached to a support pedestal such...
3881255 Instrument for inscribing geometrical loops  
An instrument for inscribing closed geometrical planar loops comprising three arm members one of which is fixed and functions as the axis of the loop and the other two are joined together and to...

Matches 1 - 50 out of 259 1 2 3 4 5 6 >