Patents Represented by Law Firm Wolder, Gross & Yavner
  • Patent number: 5023531
    Abstract: A refrigeration control apparatus especially adapted for use in conjunction with cryogenic coolers includes a brushless variable speed drive motor for powering a mechanical cooler-compressor and electronic control circuitry coupled to the motor allowing motor speed and hence cooling rate to be responsive to changes in the temperature of the volume sought to be cooled. A signal corresponding to sensed temperature is compared to a reference signal derived from motor speed. The difference therebetween used to vary the duty cycle of a high frequency pulse train. The pulse train is used to modulate the drive current applied to the motor through pulse position switching circuitry to vary the speed of the drive motor. High and low motor speed limits are provided along with sensor failure protection circuitry to insure continuous motor operation between chosen limits.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: June 11, 1991
    Assignee: Arx, Inc.
    Inventors: George A. Altemose, Michael Consi, Edwin R. Joscelyn, William Wiemann, David B. Giguere, Wilfred J. Gully, Stanley E. Spencer
  • Patent number: 4910224
    Abstract: The invention is concerned with the use of certain fatty acids and inhibitors of an enzyme in effecting modifications to the lipid structure of cell membranes. The invention also relates to the formulation of pharmaceutical compositions and medicaments and to such products per se; to the treatment of a variety of clinical and veterinary disorders associated with a lowering of the saturation index of cell membranes, including malignancies, viral disorders and AIDS; and to the use of the active materials of the invention in the relief of pain.The active principals in the present invention are saturated fatty acids having from 12 to 28 carbon atoms in the alkyl chain, e.g. stearic acid, or pharmaceutically acceptable derivatives thereof; and inhibitors of the enzyme .DELTA.-9 desaturase, e.g. sterculic acid and malvalic acid or pharmacologically active derivatives or analogues thereof.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: March 20, 1990
    Inventors: Nagy A. Habib, Christopher B. Wood, Kosta Apostolov, William R. Barker
  • Patent number: 4895626
    Abstract: A process for purifying and refining gold to 98+% purity is dislosed. The gold to be refined is made the anode in an electrolytic cell with a solution of ammonium chloride as the electrolyte. The purified gold is collected in anode bags and the non-gold impurities including silver are dissolved in the electrolyte. The silver is complexed with the ammonium ion in the electrolyte.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: January 23, 1990
    Inventor: Peter S. Shor
  • Patent number: 4892934
    Abstract: High-yielding hybridoma cell lines which secrete monoclonal antibodies capable of binding to tumor cells of one or more types, but not normal cells can be obtained more readily by fusing myeloma cells with antibody-forming cells isolated from an animal immunized with tumor antigens, which has previously been made immunological tolerant to normal cell antigens, comprising the total antigens, or at least a proportion of the total antigens, of the normal cells corresponding to the tumor cells chosen as the source of immunizing antigens.
    Type: Grant
    Filed: September 14, 1988
    Date of Patent: January 9, 1990
    Assignee: Kyowa Hakko Kogyo Kabushiki Kaisha
    Inventors: Hajime Yoshida, Nobuo Hanai
  • Patent number: 4886039
    Abstract: An archery bow lock mechanism allows a compound bow to be locked in the fully drawn position and released by the archer upon the application of a small amount of additional draw tension. The device utilizes a pair of pawl and ratchet members which approach each other and engage when the bow is drawn. Upon release of the drawstring the cam and ratchet members, which may be in the form of a ball and triangular ratchet, respectively, located on the bow cables, remain engaged, the ball being maintained in contact with a concave face of the ratchet by drawstring tension. Additional tension on the bow string disengages the pawl and ratchet, allowing the bow to be fired. Alternative positions for the ratchet and pawl members are available.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: December 12, 1989
    Inventor: John G. Wagner
  • Patent number: 4887286
    Abstract: An apparatus for assisting in the positioning of a dental X-ray generating unit for the creation of an X-ray image of an internal target portion of the mouth separated from the X-ray generating unit by a soft-tissue facial portion is composed of a substantially X-ray-transparent body adapted to be mounted in the path of the X-rays between the X-ray generating unti and the film element and an illumination source mounted to the body. The body has an outwardly-directed face positioned essentially perpendicular to the X-ray path and facing the soft-tissue facial portion between the X-ray source and target. The illumination source is positioned to direct at least one beam of light perpendicular to and outwardly from the body face towards the facial feature along the path of the X-rays generated by the generating unit to produce at least one light spot on the facial feature to serve as an orientation means for said X-ray unit.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: December 12, 1989
    Inventor: Jack W. Seidenberg
  • Patent number: 4887106
    Abstract: An apparatus for the recordation of images indicating the location of dental restorations in the mouth of an individual comprises support and positioning means for the person whose dental features are to be recorded, a first source of ultraviolet light located and arranged to illuminate the mouth area of the patient, a second source of visible light located and arranged to illuminate at least the face area of the patient, and a camera located and positioned to take a photograph of at least the mouth area while at least the face area is illuminated by the light sources. The intensity of the light sources may be adjustable to provide an accurate rendering of flesh tones while accentuating the restorations.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: December 12, 1989
    Inventor: Henry H. Cooper, Jr.
  • Patent number: 4883443
    Abstract: A collapsible play structure, such as a doll house, is formed with a base unit having storage means, such as drawers, located therein. A pair of opposed parallel and upright side wall panels, are pivotly mounted to the base, and a plurality or horizontal panels are pivotly mounted to and between the side walls to form the floors and ceilings of the unit. A front wall panel extends upwardly between the side walls and is pivotly attached to the front edge of one of the horizontal panels. Lock means are provided on the horizontal panels and on the front wall panel to removably join the horizontal and front wall panels together to permit the structure to be retained in the upright and upstanding position.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: November 28, 1989
    Inventor: Herbert S. Chase
  • Patent number: 4880825
    Abstract: Mitomycin derivatives having potent anti-tumor activity having the formula: ##STR1## wherein one of R.sub.1 and R.sub.2 represents carbamoyloxymethyl and the other represents hydrogen or R.sub.1 and R.sub.2 are bonded together to form methylene;X is hydrogen or halogen;Y is hydrogen or methyl;Z is hydrogen, methyl or acyl; andn is an integer of 2 or 3.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: November 14, 1989
    Assignee: Kyowa Hakko Kogyo Kabushiki Kaisha
    Inventors: Masaji Kasai, Yutaka Kanda, Motomichi Kono, Yutaka Saito, Makoto Morimoto, Tadashi Ashizawa
  • Patent number: 4875866
    Abstract: An improved light socket for use with light bulbs of conventional design and threaded base, has a frame and a cup adapted to accept the light bulb base mounted for longitudinal motion within the frame between a first extended position and a second retracted position. Electrical contacts are provided for establishing electrical continuity with the bulb, the contacts being engaged with the bulb when the cup is in the second, retracted position and disengaged from the bulb when the cup is in the first, extended position. An engagement finger engages the bulb thread when the cup is in the retracted position to retain the bulb in the cup, and releases the bulb when the cup returns to the extended position.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: October 24, 1989
    Inventor: Arnold F. Winant
  • Patent number: 4871575
    Abstract: The invention relates to a process and composition for enhancing the flavor and improving the texture of animal flesh, such as tuna fish in a can, by adding flour, such as rice flour, which has been hydrolyzed with a proteolytic enzyme, to the animal flesh.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: October 3, 1989
    Assignee: Deltown Chemurgic Corporation
    Inventors: Timothy Callahan, Jack Herz
  • Patent number: 4871540
    Abstract: A biologically active substance comprising a kind of glycolipid having an elemental analysis (%) of H: 5.20-5.40, C: 42.55-44.17 and N: 3.94-4.08 and a molecular weight of about 30,000-10.sup.6 is obtained by extracting the tissue of a plant of maize (Zea mays Linne) or a variant thereof by extracting the tissue with water and recovering the desired active substance from the resultant extract. This substance is capable of inhibiting the formation of IgE antibodies and promoting the formation of IgG and IgM antibodies, and moreover exhibits various biological activities such as interferon-inducing activity, polyclonal B lymphocite activating activity, mitrogenic activity, adjuvant activity and anti-tumour activity. Thus, this substance is expected to be useful for preventing and treating, for example, aesthema, rhintitis, B-type hepatitis, AIDS and other allergic diseases and immunological insufficiency.
    Type: Grant
    Filed: July 17, 1986
    Date of Patent: October 3, 1989
    Assignee: Yasuhiko Kojima
    Inventors: Yasuhiko Kojima, Sadao Tamamura
  • Patent number: 4871834
    Abstract: A process for producing monoclonal antibodies specific to carcinoembryonic antigen (CEA), comprising immunizing a mammal with a first CEA to produce cells capable of producing antibodies, collecting the cells from the mammal, fusing the collected cells with the cells of a line of myeloma of another mammal, selecting the thus-obtained hybridoma cells on the basis of their capacity to produce antibodies reactive with said first CEA, subjecting the thus-selected hybridoma cells to cloning, selecting the thus-obtained monoclones on the basis of the reactivities of monoclonal antibodies produced by them with at least one antigen selected from CEAs other than said first CEA and CEA-related antigens of normal adult human origin, culturing the thus-obtained monoclones and recovering the desired monoclonal antibodies from the spent culture. The selection may preferably be effected by radioimmunoassay using a marker antigen labelled with a radioactive substance.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: October 3, 1989
    Inventors: Yuji Matsuoka, Masahide Kuroki
  • Patent number: 4864341
    Abstract: A mount arrangement for a photographic camera which is capable of automatic diaphragm control and automatic focusing includes electrical contacts for transmission of electrical signals between a camera body and an interchangeable lens unit, and mechanical transmission members for the automatic diaphragm control and the automatic focusing and positioning member and recess on and at inner periphery of mount members of the camera body and the lens unit so as not to interfere with each other during the start and the course of the mounting of the lens unit onto the camera body through a bayonet mount device.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: September 5, 1989
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Yukio Maekawa, Tsuneyo Metabi, Masatake Niwa
  • Patent number: 4863935
    Abstract: Mitomycin derivatives having potent anti-tumor activity against solid sarcoma 180 tumors and lymphocytic leukemia P-388 tumors.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: September 5, 1989
    Assignee: Kyowa Hakko Kogyo K.K.
    Inventors: Yasushi Shida, Tokuyuki Kuroda, Ikuo Matsukuma, Makoto Morimoto, Tadashi Ashizawa
  • Patent number: 4858589
    Abstract: A combination arrow sight and support device is adapted to be mounted to an archery bow. A horizontal bar projects outwardly from the bow across the plane defined by drawstring action and in front of the drawn position of the drawstring. An arrow support is mounted to the bar and depends therefrom in the plane of drawstring action. A peep-sight, mounted for adjustable travel along the bar, projects upwardly therefrom. A mounting plate, secured to the bow in the area of the bow's hand-grip portion thereof pivotally supports a bar-support arm about a horizontal axis. The bar support arm is also pivotally mounted to the horizontal bar to allow adjustment of the device in the vertical sense with respect to the bow.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: August 22, 1989
    Assignee: C & M Sports Enterprises Inc.
    Inventor: Steven Chang
  • Patent number: 4854574
    Abstract: A pulmonary muscle trainer consisting of a tubular body having a poppet valve dividing the body into two sections. The poppet is adjustably biased into the closed position, whereby inspiration of a given intensity will be sufficient to overcome the bias and allow air flow through the unit. The poppet is supplied with a one-way valve element to permit the user to create an unrestricted expiration air flow to allow a breathing rhythm to be established. In a preferred embodiment bias is maintained on the poppet by a spring whose compression is adjustable by means of a collar manually positionable within the body of the unit. By the use of the poppet a constant threshold pressure load may be applied.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: August 8, 1989
    Assignee: 501 Healthscan, Inc.
    Inventors: Douglas A. Larson, Thomas L. Clanton
  • Patent number: D301941
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: July 4, 1989
    Assignee: Coat Conformers, Inc.
    Inventors: Gladys C. Weckstein, Jill W. Stricof
  • Patent number: D303960
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: October 10, 1989
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Kawamura Toru, Takagi Katsunori
  • Patent number: D304600
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: November 14, 1989
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Tsutomu Takano