Bizarre Patents
A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| D551952 | Bracket hanger | 10/02/2007 |
| D551951 | Decorative hanger | 10/02/2007 |
| D505648 | U-shaped chain link cycle handlebars | 05/31/2005 |
| D497858 | Straight-shaped chain link cycle handlebars | 11/02/2004 |
| 5839744 | Vehicle towing hitch The present invention comprises a vehicle towing hitch having a hollow polygonal tubular section with opposing ends and multiple side walls surrounding the hollow portion. Different size towballs are mounted on the radially outward side of at least three ... | 11/24/1998 |
| 5838643 | Timepiece display and method of displaying information time on a timepiece According to the present invention, there is disclosed a timepiece which comprises a face having a polygonal configuration when viewed in plan and having a timekeeping mechanism coupled with the timepiece face. Along at least one of the sides of the polyg... | 11/17/1998 |
| 5802800 | Simulated wood beam construction Simulated beam construction which has a central elongated I-beam member having opposing ends for connecting to opposing side panel members. The side panel members each have opposing lateral ends and later elongate panels extending between the lateral ends... | 09/08/1998 |
| 5649804 | Pick and place machine This invention discloses a pick and place machine operable to pick up a part at a loading station and to thereafter place and release the part in a delivery station spaced at least horizontally from the loading station. The pick and place machine comprise... | 07/22/1997 |
| 5418998 | Hand held ice scraper A windshield wiper scraping device is disclosed with multiple scraping or working surfaces for cleaning ice or other material from the windshield of a vehicle. In the preferred embodiment the scraping device has a composite body comprising two polygonally... | 05/30/1995 |
| 5361532 | Fishing bobber A fishing bobber that attaches to a fishing line immediately behind the weight when casting. The fishing bobber comprises an elongate tube having flotation means on one end and a water fillable cavity on the other end. A guide tube is adjustably fastened ... | 11/08/1994 |
| 5323593 | Method and apparatus for mowing lawns The present invention discloses an unattended lawn mowing system in which multiple solar powered self propelled, random motion lawn mowers are used singly or in combination to mow a pre-defined lawn area. The mowing zone is defined as a region of grass bo... | 06/28/1994 |
| 5253784 | Method and apparatus for the dispensing of game board chips A tube and plunger assembly for dispensing disc shaped game chips to a game board. The tube is elongate and cylindrical in nature and has opposing ends, with one end for loading the chips into the tube and the other end for dispensing the chips individual... | 10/19/1993 |
| 5133544 | Method and apparatus for therapeutic exercise Disclosed is a method and apparatus for therapeutic exercise of the muscles and tendons of the group that give strength and movement to the hands and fingers. The apparatus comprises a body of pliable elastic material having finger holes formed therein so... | 07/28/1992 |
| 5011135 | Therapeutic hand exerciser A therapeutic hand exerciser is disclosed which is made of a pliable composition such as polyester and which has holes installed in one or both sides for the insertion of fingers from either side. When the fingers are inserted into the holes and snugly en... | 04/30/1991 |
| 4921256 | Contrasted projectile target and method of making same Disclosed herein is a multi-sheet projectile target with a marking material that is captively held between a first sheet, which is a target face, and an elastic material located behind the target face. The marking material is selected to contrast with the... | 05/01/1990 |
| 4612848 | Method and apparatus for moving air across a mineral face A compact, collapsible and automatically expansible mining canvas is constructed and arranged so that a mine worker may stand under a supported roof section and extend into a newly sumped coal portion a forward section of a mining canvas so as to direct t... | 09/23/1986 |
| 4610931 | Preferentially binder enriched cemented carbide bodies and method of manufacture Cemented carbide substrates having substantially A or B type porosity and a binder enriched layer near its surface are described. A refractory oxide, nitride, boride, and/or carbide coating is deposited on the binder enriched surface of the substrate. Bin... | 09/09/1986 |
| 4608318 | Casting having wear resistant compacts and method of manufacture This invention relates to a double composite structure comprising cemented carbides embedded in an austenitic stainless steel matrix forming a wear, impact, drill and corrosion resistant shape by powder metallurgy techniques. Molten metal is then cast aro... | 08/26/1986 |
| 4604004 | Cutting tool assembly Disclosed is a cutting tool assembly having a hard, wear resistant insert, a shim and a blade body. The shim has a rearwardly extending recess for receiving the insert. The insert abuts against a top, bottom and rear portion of the shim recess. The shim r... | 08/05/1986 |
| 4603751 | Mechanically fastened center vacuum roof drill bit Disclosed according to the invention is a center vacuum roof drill bit. The roof drill bit has a body having an axis of rotation, a seat transverse to the axis of rotation, a periphery and a forward working end. The roof drill bit has at least one flat-li... | 08/05/1986 |
| 4575287 | Milling cutter and method of assembling therefor A milling cutter having a cutter body rotatable about its central axis with a peripheral wall on the cutter body and insert pockets and clamp recesses located in the peripheral wall. The insert pockets have locating surfaces for positioning an insert when... | 03/11/1986 |
| 4563433 | Ceramic material and method of manufacture A dual phase silicon aluminum oxynitride material comprising a first phase Si-Al-O-N, commonly referred to as ଲ-Si-Al-O-N, and a second phase Si-Al-O-N referred to as -Si-Al-O-N. In addition to the double phase Si-Al-O-Ns, there is included a... | 01/07/1986 |
| 4553884 | Boring tool and method of reducing vibrations therein Disclosed is a boring tool resistant to vibration. There is a boring bar having a central bore at one end and a boring bar head for attachment to the boring bar at the one end. Inserted in the bore is a tuned absorber package for eliminating vibrations in... | 11/19/1985 |
| 4550791 | Two-prong rotary bit, especially for use with roof drills, and insert therefor Disclosed according to the present invention is a two-prong rotary drill bit, especially for use with roof drills. The two-prong bit has a supporting body having an axis of rotation. The two-prong bit has a pair of inserts, one insert on each of the prong... | 11/05/1985 |
| 4549615 | Single-pass notching and drilling tool and method of drilling a blast role therewith Disclosed is a single-pass notching and drilling tool. The tool comprises an adaptor having a first threaded end for coupling with a power source, an opposed second threaded end, an enlarged diameter portion adjacent to the first threaded end and having a... | 10/29/1985 |
| 4542943 | Earthworking tool for protecting from abnormally high cutting loads There is disclosed a base and block assembly for use with an earthworking bit. The assembly comprises a base and a block engaged in the base. The block has a shank portion and a toolholder portion extending from a first end of the shank and adapted for re... | 09/24/1985 |
| 4491559 | Flowable composition adapted for sintering and method of making A flowable material, or slurry, comprising a liquid vehicle and solid particulate material dispersed therein which will flow out flat in the form of a sheet. The material, upon exposure to the atmosphere, and either with or without the application of heat... | 01/01/1985 |
| 4447175 | Cutting insert A cutting insert within indexable cutting edges with a chipbreaker configuration which comprises discrete recesses spaced along the length of the cutting insert. The cutting insert has a descending wall that joins the cutting edge or the land behind the c... | 05/08/1984 |
| 4361197 | Blast hole grooving bit and wear resistant compact A blast hole drill bit is disclosed for forming longitudinally extending grooves in already drilled blast holes, having a body with a forward face and a rearwardly extending pilot diameter. One or more radially extending wings are located at the rearmost ... | 11/30/1982 |
| 4360297 | Cutting insert An improved indexable cutting insert and tool holder for threading operations comprises an insert having end wall regions and parallel sides and parallel top and bottom walls perpendicular to said sides. The insert is invertable about the axis perpendicul... | 11/23/1982 |
| 4346934 | Excavating bit A nonrotatable excavating bit comprising a forward working portion and hard wear resistant material attached thereto and having a rearward shank portion which is circular in cross section and is adapted to fit into a circular bore of a support block. An a... | 08/31/1982 |
| 4344247 | Otterboard An otterboard and a method of manufacturing an otterboard are disclosed wherein the otterboard is comprised of a plate member, a shoe member and a sole plate. The shoe member is formed of a tough wear resistant material and attached to a bottom side of th... | 08/17/1982 |
| 4342368 | Rotary drills and drill bits A rotary drill bit, or a drill tip for use in such a drill bit, has a cutting edge extending outwardly away from the axis of rotation of the bit and defined by the intersection of a frontal face, inclined with respect to a plane normal to the axis of rota... | 08/03/1982 |
| 4340324 | Cutting insert A cutting insert for the metalworking industry is disclosed having a cutting edge, a land area, a descending wall and a sloping wall that joins a planar floor in the central portion of the insert. The cutting insert is polygonal when viewed in plan and ha... | 07/20/1982 |
| 4335794 | Rotary cone cutter A multi-cone roller bit with a central pot member is disclosed, having releasably secured legs carrying rolling cutters mounted on the pot. The legs have an upper portion which can be releasably secured in a recessed central portion of the pot and an abut... | 06/22/1982 |
| 4333687 | Holder for the attachment of cutters to mining and tunnelling machines Disclosed is a holder for the attachment of cutters or bits, to mining and tunnelling machines, which has at least one spray nozzle for coolant spraying of the cutter working area. The holder comprises means for receiving the cutter shank in the holder, a... | 06/08/1982 |
| 4326592 | Tool for earthworking machine A tool for an earthworking machine in which the machine has a rotor with one or more support plates mounted in an axially distributed relation with each plate carrying one or more earthworking tools in circumferentially distributed relation. Each tool ext... | 04/27/1982 |
| 4318645 | Cutting insert A polygonal cutting insert of a hard wear resistant material is described. Located behind the cutting edge land in each corner of this insert is a bump. separating the bump from the cutting edge land is a lower secondary land. This secondary land has its ... | 03/09/1982 |
| 4316636 | Excavation and road maintenance bits and blocks A bit and block are disclosed wherein the bit has a flat bar-like forward working portion and a shank rearwardly of said forward working portion. The shank, when viewed in cross section, has a non-circular shape so that, when placed in a support block hav... | 02/23/1982 |
| 4297058 | Indexable cutting insert This invention relates to an indexable broadnosing cutting insert for use in boring and broadnosing applications, especially where a floating type of boring head is required. This insert, preferably, has a triangular-like shape. Each side of this triangul... | 10/27/1981 |
