In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7480999 | Food presentation system and assembly therefor A foldable blade assembly enables users to section and display a food preparation within a food preparation container. The blade assembly comprises radially orientable cutting blades sized and shaped to fit within a food preparation container for sectioning and disp... | 01/27/2009 |
| 7404351 | Fiberglass insulation batt sizing device An insulation batt sizing device including an oblongated insulation cutting table having a proximal end, a distal end, and having a pair of longitudinally extending edges; an oblongated insulation compression plate having a proximal end, a distal end, and having at ... | 07/29/2008 |
| 7322109 | Razor for buzz cutting head hair A dual wet razor device is used for shaving hair on a head at different lengths. The device has a first and a second cutting edge on opposite sides of one another and a sensitive guide under each cutting edge for safely cutting different short lengths of hair on the... | 01/29/2008 |
| 7305910 | Process and tool for cutting monofilament line A process of cutting monofilament line using a cutting tool including a tool body having a cavity for insertion of a bent portion of the monofilament line. A cutting blade is provided in the cavity and a pair of opposing walls in the cavity are located generally par... | 12/11/2007 |
| 7300533 | Method and apparatus for repairing a wall covering A cutting implement has a body with a top and a bottom and one or more blades extending outwardly of the bottom and defining a closed cutting path. In one embodiment, the implement has a cutting depth control. The cutting implement is particularly useful in cutting ... | 11/27/2007 |
| 7287329 | Sheetrock panel cutting device A device for cutting a sheet rock panel. A base plate has a through slot that receives a blade of a conventional utility knife and a free end right angle metal end clip of conventional tape ruler and a blind slot that receives the conventional tape ruler. A clamping... | 10/30/2007 |
| 7258053 | Hot dog slicer A food slicer 10 of the present invention contains a hollow body 12 having an inner wall 13 defining an interior 17 and an outer wall 15 for containment of a food product therein. A plurality of blades 32 extends across the ... | 08/21/2007 |
| 7257897 | Trimmer for cutting a coiled strand A cutting device for trimming a coiled strand, such as an arterial, urinary or other intraluminal stent made from metal or plastic wire, has a pair of articulating arms connected at a pivot joint. One of the arms has a holding jaw for holding the coiled strand. A se... | 08/21/2007 |
| 7225711 | Die head assembly for nibbler tool A cutting die head assembly for nibbler tools which enables the die head to be independently rotatably manipulated by the user's hand independent of its axial connection with the die body to provide for angular and/or circular cuts in areas of limited space use and ... | 06/05/2007 |
| 7213284 | Optic disk pack opener An optic disk opener includes an elongate stem having an end defining an interior space receiving a spring-biased sharp member that is extendible out of the space by being manually driven, against the biasing force, to physically engaging an optic disk pack that is ... | 05/08/2007 |
| 7140288 | Device for shaping a food product A method and cutting device makes incisions in an elongated food product, like a hot dog or sausage, to form a pattern or character after the product is cooked. One form of the cutter includes a hinged housing into which the food product is positioned. The housing i... | 11/28/2006 |
| 7073264 | Bag slitting apparatus A bag slitting apparatus for opening a sealed bag along an edge of the bag. The apparatus has a first arm having first outer and inner surfaces, and a second arm having second outer and inner surfaces. The arms are in tensioned movable opposed relationship to each o... | 07/11/2006 |
| 7051442 | Ear area comb attachment for hair clipper An ear area comb attachment for attachment to a hair clipper having a bladeset with a moving blade laterally reciprocating relative to a stationary blade includes a base configured for attachment to the clipper and a guard formation associated with the base for bloc... | 05/30/2006 |
| 7036228 | Multifunctional knife device A multifunctional knife device has a main handle, a main blade having a tang inserted in the main handle, an auxiliary handle, an auxiliary blade having a serrated tang inserted in the auxiliary handle, and a spring inserted in the main handle and the auxiliary hand... | 05/02/2006 |
| 7007391 | Dual containment tubing cutter The present invention is a C-shaped plastic tubing cutter having a C-shaped grasping portion and a fixed cutting blade. The grasping portion has an opening for receiving the tubing whereby the width of the opening is measurably smaller than the diameter of the tubin... | 03/07/2006 |
| 6978914 | Valve elements for pressurized containers and actuating elements therefor Apparatus for placing contents of a first container in fluid communication with a delivery apparatus includes an actuating element carried by the delivery apparatus and a valve element carried by the first container. At least one of the actuating element and the val... | 12/27/2005 |
| 6952878 | Mobile sheet material cutting device A self-standing mobile device for cutting sheet material including a body member connected to at least one wheeled axle to translationally move the body member about a surface on which the device self-stands. The body member includes a cutting notch with open and cl... | 10/11/2005 |
| 6938343 | Package opening cutter A package opening cutter is provided which can accurately, safely and efficiently open the package without damaging the merchandise inside and in which the cutter will not come out during use. It comprises an angle ruler, retaining portions provided at both sides of... | 09/06/2005 |
| 6918205 | Grafting tool A method of cutting a stem to be whip grafted, comprising: securing the stem in a bore of a hand-held grafting tool that includes an angled end, with a portion of the stem extending out from the angled end; drawing a knife across a face of the angled end to thereby ... | 07/19/2005 |
| 6904686 | Slat ripper A one-piece, hand-held slat ripper for cutting slat, such as vinyl fencing slat, in lengths of uniform width, which includes an enclosed channel of uniform rectangular cross-sectional area housing a blade safely disposed within the channel. ... | 06/14/2005 |
| 6851196 | Ruler for cutting sheet material A ruler that is to be used for cutting sheets of material perpendicular to its longitudinal edges. The ruler is a longitudinal piece of rigid material that increases in thickness from one edge to the other. A cutting groove is placed into the rigid material at a thi... | 02/08/2005 |
| 6826838 | Clip-on corner alignment device The present invention provides for an alignment device for aligning a punch tool to punch a design into a sheet media comprised of a clip, where the clip is comprised of first and second resilient arms meeting at a connection point. A first guide edge is disposed an... | 12/07/2004 |
| 6769341 | Sheet cutting device A cutting device has a body, a driving device, a moving base, a head and a cutting rod. The driving device is mounted on the body to actuate the moving base to move relative to the body. The head extends from the body and has a central hole defined through the head.... | 08/03/2004 |
| 6671968 | Tool for forming in situ decorative patterns in a floor covering and method of forming patterns A cutting tool and method for applying decorative patterns to floor coverings. The tool comprises a force applying body member having a slide member secure to the bottom of the body member. A knife edge secured by the slide member extends outwardly from t... | 01/06/2004 |
| 6647628 | Tuft-parting carpet cutters A carpet cutters includes a blade-supporting structure and a tuft-parting structure. The blade-supporting structure includes a longitudinally extending guide with a forward portion and a carpet-contacting edge that extends along a first axis toward the fo... | 11/18/2003 |
| 6640446 | Floor groover A manually operated floor grooving tool is provided which has opposing front and rear ends with a seam-following roller at its front end and a groove-following roller at its rear end. The tool also employs a pair of grooving blades, one at the front end a... | 11/04/2003 |
| 6615495 | Apparatus and method for perforating package coverings A packaging cutter for the safe and effective perforation of packaging materials on packages or other containers comprises a body and a cutting mechanism housed within the body. The body comprises two side walls and a top wall defining an interior volume ... | 09/09/2003 |
| 6578267 | Air tool for sectioning a length of tubing A portable, hand held exhaust pipe cutter having an air motor to drive a cutting wheel arranged parallel to a drive shaft of the air motor by an angle head gearing device. The cutter makes straight cross-sectional cuts through cylinders by using a feed le... | 06/17/2003 |
| 6571477 | Pocket cutter for plastic strap A tool for cutting strapping comprises a housing and a slot defined in a base of the housing. A blade is mounted upon the housing, and a handle is pivotally mounted upon the housing between a position remote from the blade and a position adjacent to the b... | 06/03/2003 |
| 6543141 | Safety ruler and guide for rotary cutters A safety ruler and guide used with a rotary cutter or the cutting tool for cutting fabric, the ruler designed to protect a user's first hand when holding the ruler on top of the fabric while the second hand is cutting the fabric with the cutting tool. The... | 04/08/2003 |
| 6401339 | Apparatus for cutting a coin roll wrapper An apparatus for cutting a coin roll wrapper includes a housing, a front cover, a blade spring assembly and a safety spring. The housing includes a top opening and a bottom opening, both of which are sized to receive a roll of coins therethrough. A prefer... | 06/11/2002 |
| 6381854 | Bush-cutter for the manual mowing of grass and the like A bush-cutter for the manual moving of grass and the like comprises a rod or a stiff arm, working as a handle, which supports at one end a cutting head rotating around on axis and having cutting means with a cutting element, for example a blade or a flexi... | 05/07/2002 |
| 6371844 | Disposable skinner A hand held skinner having a handle portion, a base portion and a neck portion connecting the handle portion to the base portion. The base portion has finger portions extending from the neck portion toward a first and second tip respectively. The fingers ... | 04/16/2002 |
| 6363617 | Guard for cast cutter A guard for a cast cutter includes a first member securable to a cast cutter and a second member securable to a guard member. The second member is freely movable relative to the first member during operation along a support axis. Stops limiting movement i... | 04/02/2002 |
| 6357972 | Tool and method for cutting holes in film A cutting tool for locating an axis in a first member and cutting a sized hole in a second member overlying the first member. The cutting tool includes a base assembly and a cutter assembly which may be used independently of the base assembly. The cutter ... | 03/19/2002 |
| 6351888 | Window paint scraper A window paint scraper for scraping paint from a window while protecting the window frame from the blade. The window paint scraper includes a head portion, a distal end, a proximal end, and a pair of sides. The distal end has a slot therein adapted for re... | 03/05/2002 |
| 6321454 | Utility knife The present invention is a hand held utility knife for cutting and trimming materials such as carpet, vinyl, wallpaper and the like. The utility knife comprises a knife body adapted for grasping in a single hand and at least one knife blade mounted proxim... | 11/27/2001 |
| 6319474 | Microfabricated instrument for tissue biopsy and analysis A microfabricated biopsy/histology instrument which has several advantages over the conventional procedures, including minimal specimen handling, smooth cutting edges with atomic sharpness capable of slicing very thin specimens (approximately 2 μm or gre... | 11/20/2001 |
| 6298561 | Tool for cutting sandwich type plaster boards The present invention is directed to a tool for cutting sandwich type plaster boards such as gypsum plaster boards. It is an object of the present invention to provide a tool which allows the exact cutting of those boards in a time saving manner. Accordin... | 10/09/2001 |
| 6298562 | Apparatus for the marking and cutting of construction materials An apparatus for marking and cutting of construction material, wherein the apparatus is adapted for use with a flexible measuring tape. The apparatus utilizes a main body in which a measuring tape is slideably engaged into a retaining slot. A protruding c... | 10/09/2001 |