Conical Or Cylindrical Work Guide Patents (Class 30/454)
  • Patent number: 5774995
    Abstract: A new Candle Sharpening System for shaping a new or a used candle into various selective shapes thereby extending the useful and aesthetically pleasing life of the candle. The inventive device includes a base having a passage, a conical member secured to the base and surrounding the passage at one end, a slot along the edge of the conical member, and an interchangeable blade of a selected shape secured to the conical member within the slot projecting into the interior portion of the conical member to engage the candle.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: July 7, 1998
    Inventor: Richard M. Ross
  • Patent number: 5647138
    Abstract: The present invention provides a cap sharpener for clutch-type pencil, in which a blind end divides a cylinder from the cap, and the blind end has a through-hole at the center portion interconnecting the cylinder. The cylinder has a blade mounted on the top inner portion slantly and engaging with a lead which extends through the through-hole of the blind end. Two opposite resilient trips are formed in the inner wall of the cap with two granular projections extending inwardly from the trips, respectively. When turning the cap and a pencil being capped with the cap in an opposite directions, the cap will hold the pencil shaft still for the blade in the cylinder to cut the lead accurately. Additionally, the cylinder can be separated from the cap, and holding the blade in a slanting angle in a hollow body, and connected to the blind end of the cap by means of female and male joining faces. The hollow space of the cylinder, furthermore, can be used for collecting the lead chip powder.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: July 15, 1997
    Inventors: Hung Ming Tang, Plato Chen
  • Patent number: 5394613
    Abstract: A spring-driven pencil sharpener is disclosed, including a top cap having a top opening to receive a pencil and two corresponding slots to receive a fastening device including a couple of hollow frames, a housing which is constructed with a pair of coupling castings, each of which being accompanied by a lateral cover, for disposing a pencil blade set and a spring-driven powering device and the outline of the housing is preferably designed to cooperate with that of the cap to form an egg-like shape for being held comfortably as well as looking nice.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: March 7, 1995
    Inventor: Heng-Chun Ku
  • Patent number: 5379817
    Abstract: A sharpener for a soft element pencil has a housing with a pencil hole. A rotor rotatably mounted in the housing has: (a) a base portion, (b) an annular portion spaced from said base portion, and (c) a blade supported at but not between the base and the annular portion. The sharpener has a motor mounted in the housing for revolving the rotor. The blade has a skewed cutting edge that revolves around a conical axis to follow and cut a conical surface. In use, a cosmetic pencil or artist's pencil can be inserted against the blade when the blade is revolved by the motor. The pencil can then be removed and applied facially. The cosmetic pencil can then be reinserted against the blade when the cosmetic pencil is dull. Thereafter the cosmetic pencil is reapplied facially.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: January 10, 1995
    Inventors: Edmund O'Neil, Vincent Pace
  • Patent number: 5205664
    Abstract: The present invention provides a lead-auto-sharpened propelling pencil and a process of making it. The propelling pencil comprises a pencil body and a pencil cap. The pencil cap consists of a sharpener, a screwing insert and a powder remover. The process of sharpening the lead is automatically provided while the pencil cap is twisted onto the pencil body. The lead powder from sharpening is gathered in the powder remover so that the environment can be protected. The manufacturing process of the invention is that the cap case is moulded by the means of a cap case jig with the screwing insert and the sharpener installed by the means of a tapered jig. The manufacturing process according to the invention has broad application and is very practical.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: April 27, 1993
    Assignee: Fu Yushan
    Inventors: Fu Yushan, Zhang Ru
  • Patent number: 5046876
    Abstract: A pencil and a shrapener for forming the pencil with a safety tip comprising a curved, circular surface. In cross-section, the curved surface appears as two intersecting circles. The tip is thus a curved, circular surface of revolution with a sufficient radius to the surface of revolution such that the pencil has a relatively blunt writing tip.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: September 10, 1991
    Inventor: Robert Boraca
  • Patent number: 4991299
    Abstract: The invention provides a single, universal crayon sharpener capable of accommodating many different sizes of crayons or other similar marking instruments. The invention includes asymmetrical sharpening slots and cutting flanges which cooperate with an internal guide wal to ensure the proper placement and sharpening of a large range of crayon sizes. The use of asymmetrical sharpening slots and cutting flanges, and an internal guide wall, in addition, permits the efficient reinforcement of the sharpener to resist the forces and stresses generated during the sharpening process.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: February 12, 1991
    Assignee: Binney & Smith Inc.
    Inventors: Charles W. Dietterich, Gregory C. Yehl, Harry J. Lidle, Jr.
  • Patent number: 4934057
    Abstract: A sharpener, specially for the pencils, is made of a shell and a metal blade. At the upper end of the shell there is a funnel or alternatively two funnels placed side by side. The metal blade is V-notched or U-notched with the opening upward and is placed in the middle of the single funnel or in-between of the two funnels alternatively. The pencil core can be sharpened on the edge (sharped or right-angled) of the notch.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: June 19, 1990
    Inventor: Wen K. Chao
  • Patent number: 4866810
    Abstract: An arrow shaft nock end cleaning apparatus includes a body member having a socket in one end arranged to receive the tapered nock end portion of an arrow having its nock removed. A plurality of knurled cleaning pins are disposed circumferentially around the socket and are each arranged to present a working surface disposed angularly relative to the socket axis to closely match the external configuration of a tapered nock end portion of an arrow shaft to be cleaned. An end cap having an arrow shaft-guiding opening is arranged on the open end of the body, the cap opening disposed in alignment with the socket so as to guide an arrow shaft longitudinally thereinto.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: September 19, 1989
    Inventor: Donald S. Kudlacek
  • Patent number: 4593468
    Abstract: Stationary apparatus presenting a combination memo pad holder and pencil sharpener assembly. The apparatus generally comprises a main housing having a compartment for insertion of a note pad therein. Flanges on the sharpener assembly releasably engage tracks on the housing so as to position the assembly in a first position if the apparatus is used on a desk top and a second position if the apparatus is attached to a wall or the like. The offset positions of the sharpener assembly enables a pencil to be inserted therein in a ready-for-use position.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: June 10, 1986
    Inventor: Robert R. Vincent