Patents Represented by Law Firm Bucknam and Archer
  • Door operator with detachable electric motor
    Patent number: 6055885
    Abstract: A door operator comprising electric actuating motor; a reduction gear; manual transmission mechanism between the electric actuating motor and the reduction gear, the electric actuating motor and the manual transmission mechanism independently actuating the reduction gear; a proximal clutch with a proximal disc, which is mounted on a rotating shift of the manual transmission shaft; an end disc of the proximal clutch secured on the rotating shaft of manual transmission mechanism; and an electromagnet secured on a bearing seat inside a housing of the manual transmission mechanism, which is controllable to produce a magnetic effect for a pull chain disc sleeved on the bearing seat to move axially.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: May 2, 2000
    Inventor: Chung-Shien Shea
  • Membrane
    Patent number: 6054085
    Abstract: A method of producing a membrane comprises providing a solution containing a plurality of polymers in a non-aqueous liquid solvent, at least one of the polymers (hereinafter referred to as the "first polymer") having been prepared by polymerizing at least one vinyl or acrylic monomer, at least one other of the polymers being a membrane-forming hydrophobic polymer (hereinafter referred to as the "second polymer"), the first polymer and the second polymer being mutually incompatible in said solution, and contacting the solution with an aqueous medium thereby to precipitate the polymers from the solution to form the membrane.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: April 25, 2000
    Assignee: Thames Water Products Limited
    Inventors: Martin James Peer, Dipak Jani
  • Process for producing filament and filament assembly composed of thermotropic liquid crystal polymer
    Patent number: 6051175
    Abstract: A process for producing a filament assembly composed of a thermotropic liquid crystal polymer, includes the step of melt extruding a thermotropic liquid crystal polymer through an orifice nozzle into a high-speed fluid to thereby hold filaments spun right under the spinning nozzle at a high temperature, so that the filaments are taken up at a high draft ratio by the frictional force of the high-speed fluid.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: April 18, 2000
    Assignee: Polymer Processing Research Inst., Ltd.
    Inventors: Kazuhiko Kurihara, Hiroshi Yazawa, Toshikazu Oishi, Yoichi Mazawa
  • Lumped constant compensated high/low pass balanced-to-unbalanced transition
    Patent number: 6052039
    Abstract: The invention proposes a lumped constant compensated high/pass balun (balance line to unbalance line transition). The proposed circuit can be used in microwave integrated circuit(MIC) and mononolithic microwave integrated circuit(MMIC) designs. The basic operating principle of the proposed circuit is to use two sets of lumped type high pass and low pass filters to synthesize a microwave balun. The first filter set provides the wide band 180.degree. phase difference property for the balun circuit. The amplitude imbalance of the balun is compensated by the other filter set. The advantage of the proposed circuit is to replace the bulky and non-planar distributed balun or traditional transformer in low microwave frequency range.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: April 18, 2000
    Assignee: National Science Council
    Inventors: Hwann-Kaeo Chiou, Hao-Hsiung Lin
  • Method and related blowing model for drying and synchronously ironing out clothing by using a blowing model
    Patent number: 6041517
    Abstract: A method and related blowing model for drying and synchronously ironing out the clothing by using a blowing model, the main steps include: The porous cloth is sewn to a model of an upper half of human body. The model is comprising of an upper half portion of body, a neck portion and an upper limbs portion, and is formed in a sealed type. An air-blowing pipe is installed on the top end face of neck portion. A manifold is mounted in the neck portion and is able to be vertically stretched down to the lower end of body, and a branch manifold is mounted in the neck-manifold to surround the neck portion. The porous cloth is sewn to a model of a lower half of human body. The model comprises of a lower half portion of body and lower limbs portion, and is formed in sealed type. An air-blowing pipe is installed on the top end face of body.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: March 28, 2000
    Inventor: Jyh-Sheng Wang
  • Container for concentrated powder or liquid substances to be put in solution within an enclosure at the time of use
    Patent number: 6041969
    Abstract: A container for concentrated powder or liquid substances to be put in solution within an enclosure at the time of use is made of three elements, essentially hollow and with cylindrical shape and arranged coaxially, assembled by mechanical engagement in correspondence with zones of different diameter. The elements define internally, in their intermediate space, a watertight chamber in the shape of a cylindrical crown in correspondence with their reciprocal precise axial positioning.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: March 28, 2000
    Inventor: Bernardino Parise
  • Apparatus for packaging products in open or closed boxes, starting from a flat paperboard material
    Patent number: 6038831
    Abstract: An apparatus for packaging products in open or closed boxes, starting from a flat paperboard material, comprises a paperboard sheet removing assembly for successively removing individual paperboard die-cut sheets, to be supplied to an upward conveyor, supplying the paperboard sheets to a supplying line provided for supplying products to be packaged, which is arranged downward of a product separating device, the products being delivered by a product delivery device, the paperboard sheet being supplied to the line along a direction corresponding to the delivered product displacement direction, and a box forming assembly provided with a bending assembly for bending side flaps and top and bottom flaps of the boxes being formed being moreover provided.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: March 21, 2000
    Inventor: Vito Giovanni Nava
  • Method for making aluminium boiler units for coffee making machines, in particular boiler units having a faceted upwardly tapering side surface
    Patent number: 6026556
    Abstract: A method for making aluminum boiler units for coffee making machines of the type having a faceted upwardly tapering side surface, comprises a step of drawing an aluminum disc, to provide a hollow body, having substantially the configuration of the boiler unit to be made, a closed top end and an open bottom end. About the top end portion of the hollow body is formed, by a rolling operation, a thread for screw engaging with the top portion of the coffee making machine. Then, by a cutting operation, the metal disc closing the top end portion of the boiler unit body is removed, whereas the bottom end portion thereof is closed by an aluminum bottom element which is clamped to the boiler unit body.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: February 22, 2000
    Assignee: Vev Inox Industria Casalinghi S.r.l
    Inventor: Eugenio Vigano
  • Pyrotechnic composition generating clean gases with low levels of nitrogen oxides, and pellets of such a composition
    Patent number: 6024811
    Abstract: The present invention relates to gas-generating pyrotechnic compositions.The compositions according to the invention contain a small amount of epoxy binder, stabilized ammonium nitrate, optionally potassium perchlorate or an organic oxidant containing nitrogen and, characteristically, a reactive organic nitrogen compound selected from nitroguanidine, guanidinium nitrate and oxamide. This reactive nitrogen compound may advantageously be combined with cupric oxide. The compositions according to the invention produce nitrogen-rich gases with very low levels of nitrogen oxides, and find their preferred application in the form of pellets as pyrotechnic charges in gas generators for pyrotechnic extinguishers, for devices designed to inflate external structures or for devices designed to protect the occupants of a motor vehicle.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: February 15, 2000
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Bernard Finck, Jean-Paul Reynaud
  • Transdermal delivery of buprenorphine preparations
    Patent number: 6004969
    Abstract: Buprenorphine is a potent analgesic agent, it has been shown to be as effective as morphine. The main clinical application of buprenorphine is to relief postoperative pains or for patients in the terminal phase of cancer. The chance of becoming addiction and abuse is low, therefore it is pretty safe for clinical use. The half life of buprenorphine is short, since its hepatic extraction (extraction ratio is 0.7 to 0.9) and metabolism are high. For these reasons, oral administration of buprenorphine becomes impractical due to the need of giving drug frequiently. The present invention is related to enhancers used in transdermal preparations of narcotic analgesic agents. This invention employs pure components of Chinese herbs in a fixed ratio as transdermal penetration enhancers. Compositions of these transdermal preparations usually include 0.1 to 50% of narcotic analgesic agent, 0.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: December 21, 1999
    Assignee: National Science Council
    Inventor: Oliver Yoa-Pu Hu
  • InAs/GaSb superlattice structure infrared detector fabricated by organometallic vapor phase epitaxy
    Patent number: 6005259
    Abstract: The invention concerns an InAs/GaSb superlattice infrared detector that is prepared on a GaSb or a GaAs substrate by low pressure organometaleic chemical vapor deposition. The thickness of well and barrier modulated in the superlattice is used to control the wavelength of absorption. As the superlattice is sandwiched by the Si-doped InAs layer, the wavelength of absorption is in the 8.about.14 .mu.m range. As the superlattice is sandwiched by the Zn-doped GaSb layer, the wavelength of absorption is in the 3.about.5 .mu.m range.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: December 21, 1999
    Assignee: National Science Council
    Inventors: Yan-Kuin Su, Shoou-Jinn Chang, Shi-Ming Chen, Chuing-Liang Lin
  • Method for making bras and the like
    Patent number: 6000994
    Abstract: The present invention relates to a method for making bras and the like, comprising the steps of die-cutting a fabric for making a die-cut fabric element defining a bottom band, to which are coupled contoured portions defining the breast cups, applying resins on a region of the bottom band, on a side of a symmetry line and at edge regions of the contoured portions, folding the die-cut element along the symmetry line so as to cover the resin coated regions, reacting the coated resin, and applying to the bra shoulder straps and closing elements.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: December 14, 1999
    Inventor: Luciano Salotto
  • Device for suspending pants and similar garments foldable in two parts
    Patent number: 5996862
    Abstract: The device for hanging pants and similar garments foldable in two parts is composed of a rigid frame which is provided with a central hook and in the lower part thereof with a rod, the rod being intended to support the garment folded in two parts. The device is characterized by the fact that the frame (1) is formed of a cross-piece (2) and uprights (3) at the extremities, the cross-piece (2) being located at the extremities of the uprights, which act as a guide for the rod (4). The rod is capable of moving along the uprights to be in a lower position and in a raised position in contact with the cross-piece. The blocking of the rod in different positions is achieved by means of a joint of the saw type with teeth which is unidirectional and the toothed surface (5) is located on each of the uprights while the toothed spike is formed on the sleeve (7) which serves as a guide for the rod.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: December 7, 1999
    Assignee: Mainetti Tecnologie S.p.A.
    Inventors: Roberto Peruzzo, Bernardino Parise
  • Copper foil for a printed circuit board, a process and an apparatus for producing the same
    Patent number: 5997710
    Abstract: This invention provides a process for producing an electrolytic copper foil for a printed wiring board by supplying current between a rotary cathode and an electrolytic anode in a copper electrolyte so as to electrodeposit copper on the surface of the rotary cathode, wherein an anode for high electric current is placed opposite to the electrodeposition starting surface of the rotary cathode in such a manner that a part of the anode is projected above a liquid level of the copper electrolyte, and the copper electrolyte existing between the anode for high electric current and the opposed rotary cathode surface is electrolyzed by providing a high electric current with a current density higher than that of the electrolytic anode, and an apparatus for producing an electrolytic copper foil for a printed wiring board having excellent properties.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: December 7, 1999
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Muneharu Ohara, Yutaka Hirasawa, Tomohiro Miyazaki
  • Device for controlling textile fibers floating through drawing cylinders in a combing machine
    Patent number: 5996183
    Abstract: A device for controlling textile fibers floating through drawing cylinders in a combing machine comprises a plurality of drawing rollers on each of which a rubber roller is pressed, the device further comprising a stationary rod which can be applied, with an adjustable height, to the drawing cylinder assembly, and having a rod contour having a circle arch cross-section facing one of the drawing roller to press on the sliver being drawn, the rod being arranged between the second and third rubber rollers therethrough the sliver passes, the circle arch cross-section contour facing the third drawing roller.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: December 7, 1999
    Inventors: Girolamo Prandini, Giovanni Battista Pasini
  • Flanging and trimming machine of panels
    Patent number: 5992488
    Abstract: A flanging-trimming machine for differently shaped panels having peripheral edges. The machine covers the edges with an irremovable covering strip applied using an adhesive.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: November 30, 1999
    Assignee: Bortolini Engineering
    Inventor: Francesco Bortolini
  • Container for an applicator
    Patent number: D420047
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: February 1, 2000
    Inventor: Tro-Kung Ku
  • Piece of a chain for use in ornamental articles
    Patent number: D420930
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: February 22, 2000
    Assignee: Ditta Brigato Fabrizio
    Inventor: Brigato Fabrizio
  • Combined brush and spike wrench for golf shoes
    Patent number: D422145
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: April 4, 2000
    Inventor: Te-Fu Hsu
  • Container for perfumes and cosmetic products
    Patent number: D423937
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: May 2, 2000
    Assignee: Euroitalia S.R.L.
    Inventor: Pierre Dinand