Patents Represented by Attorney, Agent or Law Firm Natan Epstein
  • Patent number: 5127119
    Abstract: A modular body support system that includes a foam support frame with foam inserts within the frame to provide optimal body support configuration regardless of where it is used. The inserts include slits through at least a part of the insert as well as at least one vertical cavity passing therethrough. The slits extend only partially through the pad and are surrounding and spaced from the cavity to offer additional flexibility to the wall of the cavity.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: July 7, 1992
    Inventor: John E. Rogers
  • Patent number: 5118795
    Abstract: It is found that blood clotting-factor products previously subjected to monoclonal purification or solvent-detergent treatment or both may be further subjected to a sequence of heating steps without excessive loss of usable product to reduce the infectivity of a virus (such as hepatitis- or AIDS-causing virus), if present. The heating is performed while the concentrate is lyophilized (freeze dried). The heating steps in the sequence are for two or more different times, and at two or more different temperatures. After the heating sequence, the concentrate is reconstituted for use. This sequential method contemplates greater inactivation of different viral forms, or reduction of the heating required, or both. Reduction of heating requirements may appear as reduced overall heating time, or reduced aggregate power consumption, or both. Advantages include heightened quality-control assurance level.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: June 2, 1992
    Assignee: University of Southern California
    Inventor: Alan I. Rubinstein
  • Patent number: 5104344
    Abstract: A toy aircraft electrically powered through control lines attached to a control handle held by a ground controller is improved by provision of a break resistant connection of electrical transmission wires which also function as elevator control cables to a bellcrank arrangement on the airframe, by use of knife disconnect connectors for mechanically and electrically interconnecting the handle, the control wires and the airframe, by use of fatigue resistant flexible steel cable segment coupling the handle to the control wires, and scrape protecting skid elements on the wing for also holding the lines wrapped on the wing for storage.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: April 14, 1992
    Inventor: Andre Jancso, Jr.
  • Patent number: 5099002
    Abstract: Factor VIII concentrate, or Factor IX concentrate, or fibrinogen concentrate, or other clotting-factor product, is subjected to a sequence of heating steps to reduce the infectivity of a virus (such as hepatitis- or AIDS-causing virus), if present. The heating is performed while the concentrate is lyophilized (or dried by another process). The heating steps in the sequence are for two or more different times, and at two or more different temperatures. After the heating sequence, the concentrate is reconstituted for use. This sequential method contemplates greater inactivation of different viral forms, or reduction of the heating required, or both. Reduction of heating requirements may appear as reduced overall heating time, or reduced aggregate power consumption, or both. Advantages include heightened quality-control assurance level. Also possibly, the invention offers some potential for preparation of vaccines against the virus, if sufficient quantity of the virus is present in the concentrate.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: March 24, 1992
    Assignee: University of Southern California
    Inventor: Alan I. Rubinstein
  • Patent number: 5097018
    Abstract: Factor VIII concentrate, or Factor IX concentrate, or fibrinogen concentrate, or other clotting-factor product, is subjected to a sequence of heating steps to reduce the infectivity of a virus (such as hepatitis- or AIDS-causing virus), if present. The heating is performed while the concentrate is lyophilized (or dried by another process). The heating steps in the sequence are for two or more different times, and at two or more different temperatures. After the heating sequence, the concentrate is reconstituted for use. This sequential method contemplates greater inactivation of different viral forms, or reduction of the heating required, or both. Reduction of heating requirements may appear as reduced overall heating time, or reduced aggregate power consumption, or both. Advantages include heightened quality-control assurance level. Also possibly, the invention offers some potential for preparation of vaccines against the virus, if sufficient quantity of the virus is present in the concentrate.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: March 17, 1992
    Assignee: University of Southern California
    Inventor: Alan I. Rubinstein
  • Patent number: 5068504
    Abstract: A peak pressure sensor, for insertion between a body support pad or the like and an anatomical portion supported thereon, has a envelope, pliable electrically conductive sheets on opposite inner surfaces of the envelope, conductors for connecting each sheet to an alarm circuit, and a fluid pressurizing the envelope to a predetermined internal pressure so as to normally hold apart the conductive sheets. The sheets are movable into electrical contact by sufficient pressure applied locally to any relatively small portion of a sensing area on the exterior of the envelope, thereby to detect a peak pressure on the anatomical portion in excess of the internal envelope pressure.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: November 26, 1991
    Inventor: John E. Rogers
  • Patent number: 5048137
    Abstract: Shear stress on the skin is relieved at cavity edges in a resilient foam pad by cavity walls shaped to define a region of diminished support under the cavity edge. The edge material yields more easily under loading and may roll into the cavity to avoid pressing into body tissues. The interior wall or walls of the cavity are slanted outwardly to undercut all or part of the cavity edge to reduce the thickness of material under the edge. The shape and curvature of the cavity and cavity walls can be adapted and tailored to achieve particular pressure gradients and patterns.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: September 17, 1991
    Inventor: John E. Rogers
  • Patent number: 5033353
    Abstract: In a guitar or the like where fretting is detected by ultrasonic signals emitted by a transducer bridge and reflected at a point of each string held against a fret, and the same transducer bridge is responsive to audible frequency string vibration induced by a player, a damper bridge selectively dampens propagation of lower frequency vibrations from a note triggering string section adjacent to the bridge to a note selecting string section extending over the fretted neck, thereby minimizing intereference between fret detection and note triggering functions using a single set of string and a single acoustic transducer for each string.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: July 23, 1991
    Inventors: Joseph M. Fala, Ajay K. Keshap, Mark S. Doerning, Jay T. Barbeau
  • Patent number: 5024662
    Abstract: An attachment for a loss of resistance syringe of the type used for inserting a epidural needle into the epidural space of a patient for administration of anesthesia includes an elastomeric band attached between diametrically opposed points of a ring dimensioned to slide onto the barrel and be retained against finger flange on the syringe, the band having a length such that an intermediate portion engaged to a thumb end of the syringe piston will bias the piston for return from a drawn to a depressed position for injecting the syringe contents, the band being characterized in that the bias is insufficient to inject the fluid into tissues normally encountered between the skin and the epidural space of a patient.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: June 18, 1991
    Inventors: Cesar M. Menes, Cenon M. Menes
  • Patent number: 4991488
    Abstract: Note bending in a MIDI interfaceable fretted string instrument is detected by sensing relative phase shifting in an echo return of an ultrasonic acoustic signal propagated along each string. The delay between the propagated signal and echo return is indicative of the musical note obtainable by playing the string. The propagation and sensing may be accomplished by means of a single piezoelectric transducer coupled to each string, and the same transducer can sense string vibration in the audible frequency range indicative of the timing and amplitude of a musical note played on the string.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: February 12, 1991
    Inventors: Joseph M. Fala, Ajay K. Keshap, Mark S. Doerning, Jay T. Barbeau
  • Patent number: 4976354
    Abstract: A package for biological specimen slides made of an elongated sheet divided by a transverse crease line into a cover portion and a base portion. A tab at one end engages a slot near the opposite end for keeping the sheet folded along the crease line to cover a slide held between the base and cover by two slide retainers on the base portion. The cover is longer than the base and arches away from contact with a biological specimen on the slide. One slide retainer has a retaining strip defined between two openings in the base for holding one end of the slide inserted under the retaining strip and bridging the two openings. The second slide retainer has an opening defined in part by two oblique edges and a tab extending into the opening between the oblique edges, such that the opposite end of the slide can be inserted into the opening and engaged between the oblique edges and the tab.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: December 11, 1990
    Inventor: Abner Levy
  • Patent number: 4975140
    Abstract: Apparatus for cutting a tape of folded textile fabric containing a continuous strip of fusible material into segments suitable for sewing to a garment as belt loops.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: December 4, 1990
    Inventor: Myung Y. Kang
  • Patent number: 4947652
    Abstract: An ice level sensor for a flake-ice icemaker of the type having an electrically grounded rotary shaft for scraping ice from a refrigerated surface into an underlying ice bin has a contact plate insulated connected to a control circuit, a metallic sensing arm suspended from and electrically connected to the shaft for sweeping a path in the ice bin, the sensing arm moving against the plate on contact with accumulated ice thereby completing an electrical circuit through the drive shaft and causing the control circuit to stop the icemaker.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: August 14, 1990
    Inventor: Henio R. Arcangeli
  • Patent number: 4938413
    Abstract: A container having a number of walls of cardboard, fiberboard, plastic or other relatively stiff sheet material, joined along corner edges is made collapsible by providing one or more accordion folds transverse to the corner edges. Each accordion fold includes parallel crease lines on a common side of the walls, an intermediate crease line on an opposite side of the walls, and diagonally opposed areas of locally weakened stiffness in the wall material adjacent each intersection of the intermediate crease with the corner edges, such that portions of each accordion fold tend to overlap at the corner edges to facilitate bellowing action of the accordion fold.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: July 3, 1990
    Inventor: Steve Wolfe
  • Patent number: 4935733
    Abstract: A remote control receiver responds to a coded signal from a transmitter by actuating a switch that in turn acts to deliver power to a load or device connected to it. This switch responds not to one specific signal using a particular format, but instead it acts in response to any existing signal originating from any of a plurality of remote control transmitters. This switch, therefore, allows a remote control transmitter intended solely for activating and controlling a single device to control any such device provided the switch is attached to it in the manner disclosed.
    Type: Grant
    Filed: January 7, 1988
    Date of Patent: June 19, 1990
    Assignee: Toshio Hayashi
    Inventor: Mitsuo Munekata
  • Patent number: 4912995
    Abstract: A rotary-to-linear mechanical motion converter has a housing attachable to a drive engine, an input shaft reciprocable to the housing and coupled directly or through a gear arrangement to a reciprocating output shaft of the drive engine, a first drive train coupling the input shaft for turning a rotor in a given sense of rotation for a first direction of movement of the input shaft, and a second drive train coupling the input shaft for turning the rotor in the same given sense of rotation for an opposite direction of movement of the input shaft, the first and second drive trains alternately driving the rotor, as in an electrical generator, for continuous rotation in a given sense relative to the housing. In an alternate converter, both drive trains drive a rotor for only one direction of movement of the input shaft.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: April 3, 1990
    Inventor: John L. Otters
  • Patent number: 4914688
    Abstract: A modem system includes an RS232C interface; a modulator/demodulator; an input-output device having a parallel interface connected with a data terminal unit having no communication function or having a parallel specification; a parallel-to-serial converter for performing the mutual conversion between parallel data and serial data; a memory for temporally storing the transmitted or recieved data; and a controller for controlling the transmission and reception of data. The modem system can perform the convertion between RS232C specification data and centronix specification data such that a parallel specification printer or plotter having no communication function can be used as an output device for data transmitted to the modem system through the telephone network.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: April 3, 1990
    Assignee: Murata Mfg. Co., Ltd.
    Inventors: Tsunekazu Kobayashi, Satoshi Sakuragi
  • Patent number: 4903359
    Abstract: A body support mattress of compressible foam has a body supporting surface sliced to define an array of contiguous polygonal blocks each having a load bearing surface. The blocks are interconnected by foam links integral with the pad, and the foam links are individually rupturable under load to adapt to the support requirements of particular users and relieve shear stress on a body resting on the mattress.
    Type: Grant
    Filed: March 15, 1989
    Date of Patent: February 27, 1990
    Inventor: John E. Rogers
  • Patent number: 4888922
    Abstract: A kit of parts and method for setting a hoist anchor in a poured concrete structure includes a hemispherical rubber void body having an anchor head receiving cavity therein, the body including the cavity being partially split into two quarter sphere halves hingedly joined at a flat side of the body to allow hinging separation of the halves for insertion of an anchor head into said cavity, and a mounting stud threaded into a washer inside the void body cavity for drawing the center of the flat side against a concrete forming member thereby to flatten the flat side and urge the halves against each other to seal the void body against fluid concrete. Four variants of the kit are disclosed.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: December 26, 1989
    Assignee: Richmond Screw Anchor Co., Inc.
    Inventor: Harry B. Lancelot
  • Patent number: 4882667
    Abstract: A housing for halogen lamps includes an extruded tubular segment with an axial bore, a lamp socket at one end of the bore and at least one pair of opposed longitudinal ventilation slots opening into the bore. The ventilation slots are shielded by an internal baffle which allows air flow across the bore but closes the interior of the housing to view through the slots. A power transformer unit may be included in the bore between the ventilation slots.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: November 21, 1989
    Inventor: Maer Skegin