For Performing Diverse Function Patents (Class 33/485)
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Patent number: 6029362Abstract: An article for aligning and establishing fastening points for attachment means, such as nails, pegs and hooks, for the arrangement and hanging of pictures and picture frames, as well as for marking fastening points at either selected horizontal or vertical distances from one another for wall plates and built-in units in building construction, is disclosed. The alignment article includes at least one bubble level mounted in a frame, with a cursor having a first borehole guided along the frame. The first borehole is guided along the frame, with such first borehole lying over a slit designed in the frame and running parallel to the longitudinal edges thereto, and with at least one, further, or second, borehole situated at one of the ends of the frame. The cursor is constructed for grabbing the frame in a C-shape.Type: GrantFiled: June 5, 1997Date of Patent: February 29, 2000Inventor: Milan Miodragovic
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Patent number: 5971235Abstract: A garment creaser which may be used both to apply new creases to an item of clothing and to freshen preexisting creases. It consists of a wide blade fabricated from metal or a similarly rigid and heat-resistant material with a very slender thickness, and a plurality of semi-circular clips which fit closely over the edges of the blade. An item of clothing is creased therewith by folding it over one of the longitudinal edges of the blade, clipping it in place, and ironing over the edge of the blade. One of the longitudinal edges is equipped with a measuring scale which enables precise measurement of the length of the creases, as well as of their placement relative to other features on the item of clothing.Type: GrantFiled: November 20, 1997Date of Patent: October 26, 1999Inventor: Billy R. Chanek
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Patent number: 5970620Abstract: A measuring device for measuring aquatic creatures such as fish, crustaceans and shellfish. The measuring device includes a planar element having an elongated body that extends between two ends. At least one marking disposed on said elongated body between the two ends. A predetermined distance exists between each marking and one of said ends. Each predetermined distance corresponds to the legal minimum length of at least one species of fish. Protrusions extend from the elongated body of the planar element. A predetermined distance exists between each protrusion and one of the ends of the planar element. The predetermined distance corresponds to the minimum acceptable length of either a crustacean or a shellfish. As such, the present invention measuring device can be utilized as a yes/no gauge for a plurality of different species of fish, crustaceans and shellfish without the need for adjustment.Type: GrantFiled: February 17, 1998Date of Patent: October 26, 1999Inventor: Michael Campbell
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Patent number: 5918375Abstract: A nail clipper includes a gauge which determines the length of the nail being cut. The gauge is held by friction against one of the jaws of the clipper, and can slide back and forth to a desired position. The gauge includes a flange against which the fingertip is brought into abutment. In another embodiment, the flange includes a recess which mates with a fingertip. The latter embodiment prevents accidental cutting of the fingertip, and is especially suitable for use in cutting children's fingernails. In still another embodiment, the nail clipper resembles a guillotine, and a U-shaped gauge member slides back and forth in a holding device to determine the length of the nail to be cut. A finger holder connected to the gauge member provides secure contact between the fingertip and the gauge member. The invention substantially improves the efficiency with which artificial nails can be cut precisely to a desired length.Type: GrantFiled: September 17, 1997Date of Patent: July 6, 1999Inventor: John A. Rossi, III
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Patent number: 5878502Abstract: An apparatus for comparing compliance of a grade to a predetermined slope includes a block and a level. The block has at least one notch positioned at a distance from a first end of the block such that when the method of this invention is practiced, a level indicator will indicate whether a grade on which the apparatus is resting matches a predetermined grade. A method of this invention includes the steps of inserting an arm of predetermined length into the notch and placing the joined block and arm on a grade. A level is placed at the arm to thereby compare compliance of the grade to a predetermine slope.Type: GrantFiled: July 18, 1997Date of Patent: March 9, 1999Inventor: Harold B. Donahue, Jr.
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Patent number: 5820183Abstract: An improved graduated tool handle for providing ready measurement of selected regions of a work area. Improved graduated tool handle (10) is readily adaptable for use with various implements such as rakes, shovels, and post-hole diggers. Improved tool handle (10) is graduated to indicate increments of feet, inches and fractions of an inch. Indicia (26) is provided to identify values in feet and further indicia (28) can provide ready reference to one half foot (1/2') dimensions. Markings (20), (22) and (24) are readily visible on any side of improved tool handle (10), and indicia (26) and (28) are provided on the front and rear sides of improved tool handle (10). A band marker (45) is provided so as to allow ready reference of a desired distance measurement. Markings (22) and (24) and indicia (26) and (28) can be inscribed in improved tool handle (10) in any assorted manner and in the preferred embodiment, are printed or painted a high visibility color in stark contrast from the color of the handle.Type: GrantFiled: March 12, 1997Date of Patent: October 13, 1998Inventor: Kenneth D. Marcus
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Patent number: 5749153Abstract: A T-square for wallboard having a knife-sharpening means mounted on the body of the T-square, allowing the user of the T-square to easily and efficiently sharpen a trimming knife while the T-square is held in operative position on the wallboard. The sharpener may be a simple slot in the T-square, or blades mounted in a "V" formation, or a sharpening stone. The body of the T-square is preferably coated in a fluorescent color coating.Type: GrantFiled: September 14, 1995Date of Patent: May 12, 1998Inventor: Raymond J. Viens
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Patent number: 5713551Abstract: A holding rail is useful with a storage file having stiff cover sides and an upright clip holding presentation pages. The rail may be used to hold the storage file in a presentation position or to hold the presentation pages contained in the file in a clamped-down position. The rail is also useful for linear measurement. The holding rail is substantially flat with a plurality of upwardly bent legs. At least one upwardly bent leg is located at opposing end portions of the rail. The storage file may be held in a presentation position by placing the edge of each of the stiff cover sides into one of the upwardly bent legs of the rail. The rail thereby supports the storage file with the upright clips racing outwardly and the presentation pages in the presentation position. A plurality of tapered slots or other perforations are formed within the rail. The tapered slots may engage the upright clip, thereby holding the presentation pages of the storage file in a clamped-down position.Type: GrantFiled: May 13, 1996Date of Patent: February 3, 1998Inventor: Ulf Doerner
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Patent number: 5663533Abstract: A stethoscope ruler device which brings together two important medical functions, namely, the stethoscope function and the flexible body surface measurement function. The device takes advantage of the availability and flexibility of the elongated sound conveyance tubing the stethoscope carried by physicians, nurses, technicians, medical students and other health care providers to provide a readily available measuring device for measuring important medical body surface measurements.Type: GrantFiled: June 26, 1995Date of Patent: September 2, 1997Inventor: Richard D. Judge
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Patent number: 5637838Abstract: An apparatus for measuring, weighing and counting fish comprising a main body portion having long parallel side edges and short parallel upper and lower edges in a rectangular configuration, the main body portion having a front face and a back face and a slot for the receipt of a slidable member therein, the main body portion also having a recess centrally formed in the upper face thereof in a generally inverted V-shaped configuration with a ledge, the apex of the V being adapted to receive the head of a fish to be measured; a generally rectangular slide member positionable within the slot of the main body portion, the slide member being in a generally L-shaped configuration with a long portion slidably positioned within the slot of the main body portion and with a short portion at right angles with respect thereto adjacent the lower edge of the main body portion adapted to receive the tail of the fish to be measured, the slide member having indicia as to a fish length formed adjacent to the front face thereoType: GrantFiled: August 3, 1994Date of Patent: June 10, 1997Inventors: Clyde D. Arey, Rodney D. Arey, William B. Tannehill
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Patent number: 5615488Abstract: A non-slip sewing ruler comprising an elongate guide member including a pair of apertures disposed therein. Releasably attached to the top surface of the guide member is a handle member having a pair of pin members extending therefrom. Each of the pin members defines a pin point which is received into a respective one of the apertures when the handle member is attached to the guide member. The handle member is selectively movable between a first position wherein the pin points reside within the apertures, and a second position wherein the pin points protrude from the bottom surface of the guide member.Type: GrantFiled: November 14, 1995Date of Patent: April 1, 1997Inventor: John R. Brady
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Patent number: 5546671Abstract: A set of cooperating tools to assist a roofer in the multiple tasks involved in covering a roof surface with shingles or tiles, and numerous other chores associated with wall and roof construction, protection and maintenance. The set includes a straight-edge ruler, shingle and tile cutting jig, workbench, knee-rests, blade knife, gauges, levels and various accessories that can be synergistically combined to accurately and safely measure, cut and install shingles or tiles while standing on a slanted roof surface under precarious conditions.Type: GrantFiled: January 4, 1994Date of Patent: August 20, 1996Inventor: Ted P. Kehoe
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Patent number: 5526575Abstract: A fish measuring apparatus includes an elongated base presenting a fish support surface having first and second opposed axial ends, and an upstanding wall connected to the base and extending perpendicular to the support surface. The wall is generally V-shaped, presenting a pair of side wall sections converging toward the first end of the support surface and opening toward the second end of the support surface, and an end section extending between the side wall sections at the first end and defining a stop. An indicium is provided on the support surface at a predetermined distance from the stop so that when a fish is placed on the surface against the stop, the length of the fish may be measured relative to the indicium.Type: GrantFiled: June 8, 1994Date of Patent: June 18, 1996Assignee: GHS, Inc.Inventors: George R. Hoover, Harding L. M. Schumacher
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Patent number: 5475931Abstract: A drawing implement box includes a first ruler section, a second ruler section which has a scale of angles thereon, and a positioning member for securing the first and second ruler sections together yet allowing relative rotational movements therebetween for measuring angles. Each of the first and second ruler sections has a compartment therein for receiving a drawing implement goods.Type: GrantFiled: August 8, 1994Date of Patent: December 19, 1995Inventor: Ching-Lin Wei
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Patent number: 5471749Abstract: A non-slip sewing ruler comprising an elongate guide member including a pair of apertures disposed therein. Releasably attached to the top surface of the guide member is a handle member having a pair of pin members extending therefrom. Each of the pin members defines a pin point which is received into a respective one of the apertures when the handle member is attached to the guide member. The handle member is selectively movable between a first position wherein the pin points reside within the apertures, and a second position wherein the pin points protrude from the bottom surface of the guide member.Type: GrantFiled: November 1, 1994Date of Patent: December 5, 1995Inventor: John R. Brady
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Patent number: 5471755Abstract: A hand protection device formed of a single piece of clear plastic material forming a base portion, the front end of which is bent upwardly and rearwardly at 45 degrees thereto to form a shield portion with the the top of the shield portion bent downwardly and rearwardly toward the base portion at a 90 degree angle to form a hand retainer portion, such device for receipt of a user's hand therein.Type: GrantFiled: October 11, 1994Date of Patent: December 5, 1995Inventor: Arlene C. Haskell
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Patent number: 5471753Abstract: A combination T square and cutter comprising a main segment formed in a long planar rectangular configuration with parallel long side edges and parallel short side edges. The main segment includes a centrally located long rectangular aperture which extends the majority of the length of its long sides. The long side edges of the aperture include an undercut groove. A cross bar is formed in a planar rectangular configuration with parallel short edges and parallel long edges. The central portion of the bar is coupled to the lower surface of the main segment. A slide base is formed in a planar rectangular configuration with parallel long edges, parallel short edges, an upper surface and a lower surface. The short edges of the base are adapted to fit within the grooves in the aperture of the main segment. The base includes a coupling device on its upper surface.Type: GrantFiled: April 29, 1994Date of Patent: December 5, 1995Inventor: Bernardo M. Rodrigues
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Patent number: 5430947Abstract: A geometrical instrument for use with a straight edge to mark positions on a flat surface is described. The instrument has a receiver slot on its rear side. The receiver slot extends the width of the instrument such that the instrument can be slideably mounted on the straight edge, The instrument includes a holder to position a writing implement above the receiver slot such that the writing implement marks the flat surface. The instrument also includes a positioning hollow with a centering point aligned with the center of the holder. Additionally, the instrument may include a slot for inserting a knife blade.Type: GrantFiled: August 6, 1993Date of Patent: July 11, 1995Inventor: Robert M. Courtney
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Patent number: 5361510Abstract: A picture frame hanging wire applicator tool includes an elongated body member, an end member attached to and projecting transversely from an end of the body member for holding the body member in relation to a top edge of a picture frame, and a series of longitudinally-spaced apart protuberances in the form of pegs carried along a front side of the body member. Each of the pegs carried by the body member provides a means for retaining a picture frame hanging wire at an apex point which is at a known distance from the top edge of the picture frame. Indicia labels can be provided on the back side of the frame for recording the distance between the hanging wire apex point and the top edge of the picture frame for use by the end user or person who later will hang the picture frame at a desired location on a wall.Type: GrantFiled: September 16, 1993Date of Patent: November 8, 1994Inventor: John W. Cox
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Patent number: 5339532Abstract: A fish measuring device is described which has a fish support surface with a length, width and first and second ends opposite one another. A stop at the first end prevents movement of a fish lengthwise beyond the first end and at least two fish restraining members at least partially along the length of the fish support surface partially enclose or envelope an interior space with the fish support surface. A passage exists between the two fish restraining members to permit a fishing line and/or thumb and forefinger holding a fish to be brought therethrough to the stop. A live fish may be brought into the device while still hooked via the line or after being unhooked. While the fish is restrained in its movement, its length may be compared against the end of the support surface or a scale therein to determine its length.Type: GrantFiled: March 29, 1993Date of Patent: August 23, 1994Inventor: John G. O'Keefe
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Patent number: 5291664Abstract: A tape strip is arranged to include a strip abutment and the strip abutment is positioned within a first sleeve, the first sleeve having a V-shaped web arranged for positioning as a first corner, with a second sleeve having a second V-shaped web arranged for abutting against a further spaced corner, with the second sleeve including a slide block to receive the tape member therethrough.Type: GrantFiled: February 16, 1993Date of Patent: March 8, 1994Inventors: Richard D. Pinney, Jr., Lisa L. Misbach
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Patent number: 5279041Abstract: A measuring instrument provided with measuring vials for determining level or pitch relationships and a graduated straight edge for measuring linear distance. In the first embodiment, the instrument consists of a composite aluminum and plastic structure where the plastic structure forms the body portion having the vial holders and viewing windows and the aluminum portion forms the graduated straight edge. A second embodiment consists of an aluminum structure having a flat elongated frame portion and an integrally formed base portion disposed perpendicularly thereto. The frame portion forms the graduated straight edge and carries the measuring vials.Type: GrantFiled: October 5, 1992Date of Patent: January 18, 1994Inventor: Randall J. Wright
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Patent number: 5233715Abstract: A combination tool assembly is disclosed having a pentagonal top block detachably fastened to an elongated, pentagonal base through doweled joints, a folding rule pivoted to the top block and received in a side chamber on the base, a cutter and ballpoint pens controlled by slides to move in and out of respective holes on the base, a triangular scale detachably side matched to the top block and the base. The folding rule may be separately used for measuring and arranged with the base into an instrument for drawing circles.Type: GrantFiled: November 24, 1992Date of Patent: August 10, 1993Inventor: Ming-Tzung Huang
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Patent number: 5228226Abstract: A gaff and measuring device is a hook connected to a measuring means. The gaff and measuring device also includes a handle and a lever to provide extra stability in maneuvering the hook and measuring means. The lever is also used as a surface against which the fish can be place while being measured.Type: GrantFiled: May 6, 1992Date of Patent: July 20, 1993Inventor: Theodore Porosky
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Patent number: 5148607Abstract: A device for simultaneously holding and measuring the length of a fish, generally comprising a rectangular tray open at one end, the tray having a bottom, two side walls and one end wall, and a preferably hinged lid with a releasable latch. The length of the tray is made equal to the minimum legal length established for the type of fish with which the device is to be used. The length of the lid is less than the length of the bottom of the tray and the lid is disposed on the tray with one end of the lid generally aligned with the closed end of the tray, such that a portion of the bottom of the tray adjacent to the open end is not covered by the lid. A fish is placed in the device with its nose against the end wall at the closed end of the tray, and the lid is closed to loosely retain the fish the device. If the tail of the fish extends outwardly beyond the open end of the tray the fish is of legal size and may be retained by the fisherman.Type: GrantFiled: November 1, 1991Date of Patent: September 22, 1992Inventor: Rupert W. Lasiter
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Patent number: 5097617Abstract: An elongated, upwardly opening V-shaped trough for measuring fish. The trough has spaced apart indicia at measured intervals from one closed end of the trough for indicating the length of a fish placed in the trough. Auxiliary indicia are placed at appropriate distances along the trough to signify the legal limit for various species of fish likely to be encountered by a fisherman.Type: GrantFiled: January 11, 1991Date of Patent: March 24, 1992Inventor: Gene C. Craven
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Patent number: 5092054Abstract: An arcuate measuring device for measuring distances along a spherical body such as a bowling ball. The device includes a curved guide member including measurement marking thereon. A measurement device is slidably retained on the guide member. Removable pins are provided to permit measuring between two finger holes in a bowling ball. An aperture is provided in the measurement device to permit marking a distance on the ball.Type: GrantFiled: July 16, 1990Date of Patent: March 3, 1992Inventor: Nick J. Cipiti
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Patent number: 5083380Abstract: The disclosure relates to a duct notching template apparatus having slidably positionable and settable end templates and a center template. The end templates have hooked or tabbed edges for engaging the edge of a piece of sheet metal to be scribed for notching. The templates contain windows for viewing the measuring indicia on the longitudinal element on which they are disposed.Type: GrantFiled: April 23, 1990Date of Patent: January 28, 1992Inventor: Larry D. Robertson
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Patent number: 5054206Abstract: A projection scale apparatus and method uses a projection scale on the chain guide of a chain saw. The throttle of the chain saw may be continuously manipulated to prevent the saw from stalling while the diameter of a tree is measured with a scale provided on the chain guide.Type: GrantFiled: April 14, 1989Date of Patent: October 8, 1991Inventor: Robert A. Carlson
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Patent number: 5040307Abstract: Inaccuracies in measurement of the separation of a pitched horseshoe from a target stake are substantially reduced by a measuring device that is configured to engage the target stake such that surface anomalies in the stake do not influence the accuracy of the measurement. The measuring device is comprised of a generally elongated solid body having a generally circular aperture adjacent one end of the body, the diameter of the aperture exceeding the width of the target stake, so that the device may be placed over the stake and a far edge portion of the aperture, that is adjacent to the one end of the body, may abut against that portion of the stake which faces away from the pitching direction. A sequence of gradation markings are formed on a second portion of the flat body, which is spaced apart from the one end of the body. In accordance with a further aspect of the present invention there is provided a scoring device for providing an indication of the score of the game during the progress of the game.Type: GrantFiled: May 4, 1990Date of Patent: August 20, 1991Inventor: Gary D. Dotson
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Patent number: 5033200Abstract: The present invention relates to a scientific ruler incorporated with a concave lens and a convex lens which may be dismantled from the ruler and aligned with each other to compose as a telescope. The concave lens or convex lens may be replaced by a compass. A protractor is provided around the periphery of the concave lens. An inclined plane is formed at either one or both ends of the ruler capable of refracting the sunlight into a rainbow spectrum. Further, a comb and a thermometer are provided. In addition to various mathematic and equal signs and undulate edge there are more space area for indicating name of the user and adhering stickers.Type: GrantFiled: August 14, 1990Date of Patent: July 23, 1991Inventor: Yee T. Leung
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Patent number: 4845857Abstract: A tie length measuring device including an elongated member with an attaching means for attaching said member to the user's clothing, and a measuring means for determining the correct position at which to tie the user's necktie. The elongated member may have various measuring means such as lines or, alternatively, sections which may be broken off to reduce the length of the member to a desired length. Additionally, the attaching means may consist of more than one type of clip means for attaching the device to the user's clothing.Type: GrantFiled: January 21, 1988Date of Patent: July 11, 1989Inventor: Larry Klosterman
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Patent number: 4688510Abstract: A marker device that clips onto a page, for example, has a spring between proximal ends of a pair of similar congruent leaves so as to spread the proximal ends away from each other and press corresponding opposite distal ends toward each other. One leaf has graduations on it constituting part of a scale or ruler. A third flat straight leaf is connected to one of the pair of spring-biased leaves in such manner that the third leaf can slide and extend or contract relative to the one leaf. The third leaf has graduations that form a continuous measuring scale in conjunction with the graduations on the one leaf when the third leaf is fully extended.Type: GrantFiled: August 14, 1986Date of Patent: August 25, 1987Inventor: Fay C. McNeely
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Patent number: 4670990Abstract: A marking gauge employed for locating positions indicative of construction patterns of components of articles of furniture includes an elongated ruler positionable at a location representative of a component of an article of furniture on which is to be mounted at least one furniture fitting, and a plurality of templates which are representative of the respective furniture fittings. The templates are adjustably mounted along the ruler at predetermined different locations. Each template has structure for, when such template is mounted at a selected predetermined location along the ruler, locating a position indicative of a predetermined construction pattern of a component of the article of furniture.Type: GrantFiled: March 26, 1986Date of Patent: June 9, 1987Assignee: Julius Blum Gesellschaft m.b.H.Inventor: Glenn Horvath
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Patent number: 4660292Abstract: Disclosed is a combination rule, horizontal level, vertical plumb and straight edge. By use of two parallel scales running reverse to one another mounted to an elongated member, direct read measurements can be taken between two points up to a distance equal to twice the overall length of the tool such that no arithmetic computation is required. Perpendicularly mounted target levels allow the tool to be used as both a vertical plumb and a horizontal level. A flanged box beam member provides finger tip recesses for easy manipulation and maneuvering of the tool by the user.Type: GrantFiled: June 17, 1986Date of Patent: April 28, 1987Inventor: Anthony D. Richardson
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Patent number: 4654976Abstract: The instant invention is a combination ruler and hanger for suspending belts from a display rack, and includes a long one piece body molded of plastic and having notches for the belt to extend therethrough while being wrapped over one end of the body in addition to a measuring scale and stencil cut-outs.Type: GrantFiled: August 8, 1985Date of Patent: April 7, 1987Inventor: Nazir Diwan
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Patent number: 4648185Abstract: A leveling tool for accurately marking a pair of points on a horizontal or vertical line, for example for use in hanging pictures or shelves, has an elongate bar provided with a fixed tab member, a longitudinally movable second tab member and bubble gauges set parallel with and at right angles to the length of the bar. The fixed tab member is used as a pivot placed on one of the points, and the tool is swung around the pivot until one or other of the bubble gauges is level. The second tab member is then used to mark the second point.Type: GrantFiled: December 26, 1985Date of Patent: March 10, 1987Inventor: Umberto L. Brandimarte
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Patent number: 4641444Abstract: A limited line viewer assembly for selectively viewing data on a computer printout sheet or related usage.The device has multiple slide assemblies which are entirely contained, in the open and closed positions, within the confines of a surrounding housing assembly.The slide assemblies and a housing wall have means which cooperate to effectively lock the device in an open or closed position until desired to be manually changed by a user.Type: GrantFiled: April 26, 1985Date of Patent: February 10, 1987Inventor: Robert G. Signor
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Patent number: 4507869Abstract: A marker attachment for an elongated rule, such as a metal measuring tape adapted to be stored in compact coiled condition in a case from which it is extendible and into which it is retractable. The marker attachment has at least one integrally formed projection with a pencil-point receiving hole therein. Preferably, the attachment is integrally formed from flexible, but relatively stiff, plastic sheet material and in use slideably embraces a rule or tape. Also, it is preferred for the attachment to have an integral pointer which is aligned with the pencil-point receiving hole in a direction transverse to the rule and registrable with rule markings. In addition, it is preferred to provide the attachment with a piece of friction material which will engage the rule and tend to retain the attachment in place when moved to a desired position on the rule.Type: GrantFiled: April 14, 1983Date of Patent: April 2, 1985Inventor: Michael E. Stude
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Patent number: 4505046Abstract: A pre-press portable makeready guide for use with any rotary offset press to prepare the press to print documents. The guide includes visual indicia placed thereon as a guide to the operator of the press for settings of various components of the press to carry our printing and other operations. The scale may be rigid or flexible. If the scale is flexible a holder may be used and guide mounted and indexed thereon.Type: GrantFiled: May 16, 1983Date of Patent: March 19, 1985Assignee: Systems and Methods, Inc.Inventor: Leonard G. Shonka
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Patent number: 4495709Abstract: An easily attachable or removable snap-on adapter to triangular scales provides supplemental length-measuring scales, besides serving as a guard against accidental use of an inappropriate scale. It also acts as an aid for correctly orienting and accurately and firmly positioning the ruler for measurement or drafting purposes. It is made preferably of a molded plastic piece, whose inner contour comprises two elongated beads fitting snugly into each of two grooves along two sides of a standard triangular scale, and whose contour comprises a flap beneath each of these beads and a substantially flat, but flexible portion above the beads. When in use, the part of the inner contour which is directly opposite this flat portion is designed to rest on the upper edge of the scale.Type: GrantFiled: November 5, 1982Date of Patent: January 29, 1985Inventor: Joseph S. Mainenti
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Patent number: 4454654Abstract: A two-part navigational measurement device comprising a transparent circular disc having a coordinate grid thereon. An annular ring is coaxially positioned about the circular disc, the circular disc being rotatable within the annular ring. The annular ring has gradations around at least half of its circumference. A tangent ruler is fixed to the annular ring, the tangent ruler having a tangent edge which is tangent to the annular ring at the mid-point of the gradations. Means, such as a set screw may be provided for locking the disc and the annular ring against rotation relative to each other after the course to be adhered to has been determined.Type: GrantFiled: November 9, 1982Date of Patent: June 19, 1984Inventor: Hans G. Mayer