Patents Represented by Law Firm Kemon, Palmer & Estabrook
  • Patent number: 3985953
    Abstract: In a method of preparing a gravure printing member by excavating materials from the surface by a scanning laser beam or other energy beam, the path of the beam to the surface is periodically intercepted during the scanning by a rotary shutter, the position and speed of the rotary shutter and the relative movement of the scanning system and the surface of the printing member being such that the shutter shadow is substantially stationary relative to the surface of the printing member during its passage across the beam, the protected portions of the surface constituting the walls of the gravure cells.
    Type: Grant
    Filed: March 18, 1975
    Date of Patent: October 12, 1976
    Assignee: Crosfield Electronics Limited
    Inventor: Rowland A. G. Dunkley
  • Patent number: 3985970
    Abstract: Regeneration of distorted signalling pulses is obtained by means of a Schmitt trigger which is fired when the input pulse has varied by a preset value .DELTA.V the maximum voltage of said pulse being stored in a memory device so as to maintain the trigger in the present state. The trigger is switched back during the trailing edge of the pulse when the signal has varied by the same preset value .DELTA.V through inhibition of the memory device. The regeneration meets C.C.I.T.T. R2 regulation.
    Type: Grant
    Filed: April 11, 1975
    Date of Patent: October 12, 1976
    Assignee: Societe Lignes Telegraphiques et Telephoniques
    Inventors: Raymond Lerault, Jean-Claude Bulte
  • Patent number: 3985224
    Abstract: A conveyor belt comprises a series of cross rods coupled together at their ends in parallel relationship at fixed distances apart, and plate links which extend between the cross rods and are hingedly connected to the cross rods solely by virtue of nestling engagement of parts of the peripheries of the cross rods in channel-shaped recesses at opposite sides of the links, the mouths of the recesses at the opposite sides of each link being directed away from one another lengthwise of the belt.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: October 12, 1976
    Assignee: U.M.E.C.-Boydell (Belting) Limited
    Inventor: George Arthur Harvey
  • Patent number: 3984208
    Abstract: Improved sintered anodes for solid electrolytic capacitors are produced from a mixture of at least two powders the first being of pure film forming metal and the second of a film forming metal with addition of at least one of the elements : nitrogen, tungsten, molybdenum, vanadium and hafnium. The relative concentration of the added element is between 100 and 20,000 ppm. by weight.
    Type: Grant
    Filed: February 13, 1974
    Date of Patent: October 5, 1976
    Assignee: Societe Lignes Telegraphiques et Telephoniques
    Inventors: Jean-Claude Moulin, Balint Escher, Dominique Prince
  • Patent number: 3983440
    Abstract: An electric discharge lamp includes a structure within the discharge envelope comprising a source of at least one halogen, metal or metal halide to serve as an arc-modifying additive, enclosed in the structure from which it is capable of being released into the discharge envelope upon subsequent treatment, for example on heating or on striking an arc. The structure preferably comprises a hollow carrier body of refractory metal, in which the source of halogen, metal or metal halide is disposed, and may be covered by a closure of porous sintered refractory metal or of fusible metal. The fusible metal may be inert as regards the discharge and may itself affect the emitted radiation characteristics. The structure may constitute one electrode of the lamp, and may also include electron-emissive material. It has the advantage of protecting the additives from the atmosphere and thereby simplifying manufacture of the lamp.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: September 28, 1976
    Assignee: Thorn Electrical Industries Limited
    Inventors: Kenneth Scott, Arthur Samuel Vause
  • Patent number: 3981095
    Abstract: A sport-fishing apparatus includes a hollow rod with a line extending through the rod interior. The line, while perfectly flexible to bending throughout its length, is relatively stiff in torsion so that rotation of one end is effective to rotate the opposite end. The rod handle houses a battery-powered motor, the shaft of which is concentrically arranged with respect to the handle, and secured directly to one end of the line. The line extends outwardly of the rod tip a distance substantially equal to the length of the rod and is arranged for free rotating movement within a resilient plastic sheath having one end secured within the rod and the other end terminating near the opposite end of the line.
    Type: Grant
    Filed: May 13, 1975
    Date of Patent: September 21, 1976
    Inventor: Allen A. Shepherd
  • Patent number: 3977533
    Abstract: Article classifying apparatus comprises means for conveying articles in series to a work station. At the work station means are provided for establishing a machine readable classification code on each article. The apparatus also includes means for varying the speed of the conveying means.
    Type: Grant
    Filed: February 11, 1974
    Date of Patent: August 31, 1976
    Assignee: The Post Office
    Inventors: Eric George Hills, David Evans
  • Patent number: 3977923
    Abstract: A new class of multiaziridines are provided having the formula: ##EQU1## WHEREIN R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are monovalent radicals that may be the same or different and are hydrogen, 1-5 carbon alkyl or 1-5 carbon alkenyl,R.sub.5 is a multivalent hydrocarbon radical containing 2 to 24 carbon atoms, andn is an integer from 2 to 4.These multiaziridines are used to produce elastomeric compositions of controlled plasticity and gel content, plus other unique polymeric products, by reaction with polycarboxylic organic compounds, e.g., controlled combination of chain-extending and cross-linking of polycarboxylated polymers.
    Type: Grant
    Filed: December 3, 1969
    Date of Patent: August 31, 1976
    Assignee: The General Tire & Rubber Company
    Inventor: Heinz Uelzmann
  • Patent number: 3976355
    Abstract: A coupler for optically connecting two lengths of dielectric optical waveguide has a plug and a socket. The socket consists of a sleeve having a first capillary bore tube rigidly fixed in the sleeve and a second capillary bore tube slidable in the sleeve. A length of dielectric optical waveguide is threaded through the first tube and partially threads the second tube. The plug consists of a capillary bore tube of similar cross-section to the second capillary bore tube, with a length of dielectric optical waveguide partially threading, and rigidly attached to the capillary bore tube. When the plug is inserted in the socket the second capillary tube slide back along the length of the dielectric optical waveguide which is thus guided into the plug capillary bore. A modification of the invention provides a plug and socket connection for simultaneously joining a large number of dielectric optical waveguides.
    Type: Grant
    Filed: August 13, 1974
    Date of Patent: August 24, 1976
    Assignee: The Post Office
    Inventor: Michael Robert Matthews
  • Patent number: 3974953
    Abstract: An apparatus for centering material fed therethrough consisting of a pair of outer frame members provided with a pair of inner members wherein all of the members are arranged in spaced parallel relation to one another. The inner members are pivotally connected to and carried by the outer frame members in spaced parallel relation therewith. The inner members are spring biased toward one another to compensate for varying size in material being fed therethrough and are also provided with horizontally and vertically disposed feed and guide rollers. The inner members are linked together by means of a common slide guide carried by the fixed outer frame members.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: August 17, 1976
    Assignee: Cooper Tire and Rubber Company
    Inventor: Karl W. Klose
  • Patent number: 3974981
    Abstract: In an automatically operated magnetic tape equipment, sudden and important variations of mechanical tension are applied to the tape. In order to prevent any risks of rupture of the tape, an automatic damping of such variations is ensured by establishing that portion of the wall of the duct inputting the chamber of the receiver spool in the form of a resilient arrangement retracting from the duct when the tape which is guided therein is the subject of such a sudden increase of its mechanical tension. A mechanically actuated electrical contact, a part of a tape presence detector, is combined with this resilient arrangement.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: August 17, 1976
    Assignee: Compagnie Internationale pour l'Informatique
    Inventor: Jacques Paul Stiegler
  • Patent number: 3975771
    Abstract: In magnetic disk equipments or the like, the read/write magnetic heads are each bonded to the wall of a thru-hole of a carrier plate adapted to act as a "flying" member maintained by an aerodynamical action in close proximity to the surface of the rotating disk. In a device according to the invention, the bond between the lateral surface of the head and said wall is made to ensure magnetostatic and electrostatic shielding of the head against spurious magnetic, electromagnetic and electrostatic fields. Said bond may comprise thin films of a high permeability anisotropic material coating at least the facing surfaces of the head and the wall and a layer of solder intervening between said films. Such a shield may partially extend over selected areas of the rear faces of the plate and head.
    Type: Grant
    Filed: February 21, 1974
    Date of Patent: August 17, 1976
    Assignee: Compagnie Internationale pour l'Informatique
    Inventor: Jean-Pierre Lazzari
  • Patent number: 3975773
    Abstract: In a thin film magnetic writing head structure, a high permeability layer is arranged parallel to the lateral face of a pole piece which is situated in the downstream direction of movement of the magnetic record carrier under the head airgap. Said high permeability layer is magnetostatically de-coupled from the pole piece. This arrangement guides the zero magnetic field lines from the head along the frontal plane of the pole piece and along the lateral face of said piece, thereby drastically reducing the action of de-magnetizing components of the writing flux on the record.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: August 17, 1976
    Assignee: Compagnie Internationale pour l'Infomatique
    Inventors: Jean-Pierre Dejouhanet, Jean-Pierre Lazzari
  • Patent number: 3974791
    Abstract: Sails for sailcraft, e.g., one-design racing sailboats, are made by forming a plurality of cloth panels by cutting all edges of each panel from a bolt of cloth according to predetermined rectangular coordinates, creating marks on the panels defining fair luff, leech and foot curves, overlapping the resulting panels and securing them together. Preferably, double faced adhesive tape is used in securing the panels, the seam overlaps between panels are of constant width and the panels are tack-welded together. Sails for use with racing one-design sailcraft that cannot be altered in shape without detection can be produced.
    Type: Grant
    Filed: May 6, 1975
    Date of Patent: August 17, 1976
    Assignee: Haarstick Sailmakers Chesapeake, Inc.
    Inventors: Stephen H. Haarstick, John W. Lynch
  • Patent number: 3973569
    Abstract: Tracheostomy tubes are provided with means that permits them to be held firmly in proper position upon a person on whom the device is installed. Such means comprises a fixed flange member, a slideable flange member and a plurality of slideable and separately removeable ring members positioned between the fixed and slideable flange members.
    Type: Grant
    Filed: August 6, 1975
    Date of Patent: August 10, 1976
    Assignee: National Catheter Corporation
    Inventors: David S. Sheridan, Isaac S. Jackson
  • Patent number: 3974006
    Abstract: A method is described for obtaining high temperature resistant assemblies comprising isolated silicon islands bonded to a substrate in view of the manufacture of bipolar or MOS circuit element built-in devices. The flat surface of an initial wafer comprising a silicon layer wherein unisolated silicon islands are nested within a silicon oxide layer otherwise having a planar interface with the silicon layer is totally oxidized and coated with a thicker insulating layer at least part of which is comprised of silicon oxide up to an exposed surface, and a second substrate at least the surface of which is comprised of silicon oxide is bonded to the said exposed oxide surface by fusion of an intermediate phosphosilicate glass layer between said two oxide surfaces. Thereafter, the silicon material of the initial wafer is removed up to the said interface.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: August 10, 1976
    Inventor: Valentin Rodriguez
  • Patent number: 3973603
    Abstract: An apparatus for filling a flexible container with a liquid from a reservoir or tank having a plurality of filling nozzles or tubes. The container engages a nozzle or tube as it is being filled and is subjected to a filling head pressure that causes the sides of the container to distend or expand thus enlarging its volumetric capacity. A control, including a plunger or projector, is provided to engage and indent or compress a side of a container to adjust the volumetric size of the container during the filling operation. Thus, when the head pressure is removed from a filled container, the plunger or projector is moved away from or out of engagement with the side of the container whereby the contraction of the sides of the container will not result in an overflowing or spilling of the contents of the container.
    Type: Grant
    Filed: June 18, 1974
    Date of Patent: August 10, 1976
    Inventor: Henry H. Franz
  • Patent number: 3970795
    Abstract: TNR (Traffic Noise Ratio) is defined as the ratio of the portion of the noise representing a multi-channel signal that occurs in a narrow bandwidth (including inherent, and intermodulation) to the noise in the same bandwidth, in the absence of a traffic signal in that bandwidth, under specified traffic conditions. The TNR of a communications link is measured by measuring the noise power level in a predetermined bandwidth in a quiet channel with reference to a signal representative of the power that would be in the quiet channel if it was loaded under peak traffic conditions. The noise power level is measured using a digitally stepped automatic attenuator controlled by a feedback loop which includes filters for isolating the noise in the quiet channel.
    Type: Grant
    Filed: July 16, 1974
    Date of Patent: July 20, 1976
    Assignee: The Post Office
    Inventor: Edgar Robert Allen
  • Patent number: 3969125
    Abstract: We had previously disclosed a heat resistive and reinforced composite material which was prepared by sintering a finely powdered mixture of trisilicon tetranitride and an oxide of yttrium group elements.More improved similar composite material having excellent bending strength can be obtained by sintering a finely powdered mixture of trisilicon tetranitride, yttrium oxide and aluminum oxide. Cerium oxide, lanthanum oxide or scandium oxide can also be used instead of yttrium oxide.
    Type: Grant
    Filed: July 23, 1973
    Date of Patent: July 13, 1976
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Katsutoshi Komeya, Hiroshi Inoue, Akihiko Tsuge
  • Patent number: 3969408
    Abstract: 2-ALKYL-5-OXIMINOCYCLOPENTANONE USEFUL AS THE RAW MATERIAL OF PERFUME AND OTHER CHEMICALS, THE CHEMICAL STRUCTURE OF WHICH MAY BE EXPRESSED BY THE GENERAL FORMULA: ##EQU1## where R is a lower alkyl group, and the method of preparing the same.
    Type: Grant
    Filed: December 18, 1974
    Date of Patent: July 13, 1976
    Assignee: Kobayashi Perfumery Co., Ltd.
    Inventors: Hiroyuki Kyomori, Kazuhiro Sasaki, Mitsuhiro Takahashi