Patents Represented by Law Firm Weingarten, Maxham & Schurgin
  • Apparatus for harnessing tidal power
    Patent number: 4103490
    Abstract: An apparatus for harnessing and extracting a portion of the power generated by the rise and fall of ocean tides. A tidal chamber is provided wherein the rise of the tide creates positive air pressure within the tidal chamber and the fall of the tide creates a partial vacuum within the tidal chamber. The pressure and partial vacuum are, through appropriate valving, used to drive a pair of reciprocating, fluid-coupled rod and float assemblies, the motions of which can be harnessed to operate an air compressor, crank shaft, flywheel or other suitable mechanical device.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: August 1, 1978
    Inventor: Alexander Moiseevich Gorlov
  • Adjustable modular bookcase
    Patent number: 4102275
    Abstract: A modular shelf unit capable of assuming a variety of horizontal widths and angular configurations. The aesthetically pleasing shelf unit is formed from two independent upstanding side supports each having a plurality of cantilevered shelves extending therefrom and cooperative with one another to provide an interdigitated, self-supporting shelf unit that is both expandable in the horizontal direction and rotatable about an axis common to each independent side support. The resulting shelf unit is an adjustable, self-supporting structure which is readily adaptable for use in available spaces in homes and offices.
    Type: Grant
    Filed: April 13, 1977
    Date of Patent: July 25, 1978
    Inventors: Albert M. Spound, Richard D. Horowitz
  • Stand construction system
    Patent number: 4102087
    Abstract: A stand construction system which includes a support frame, support means on said support frame to be spaced from a surface on which the system rests, a floor-carrying member, and connecting means adjacent a rear end of said floor-carrying member locatable on said support means to position said rear end substantially horizontally, the floor-carrying member having its front end arranged to be supported directly by the surface or by support means of a further support frame to be arranged at a lower level than the support means of the first said support frame.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: July 25, 1978
    Assignee: Exhibition Showplace Services Limited
    Inventor: Barry Michael Frank Jarvis
  • Nuclear light source
    Patent number: 4103172
    Abstract: The invention relates to light sources and, in particular, to light sources for use in navigational aids such as lighthouses and lighted buoys.In more detail, the light source of the present invention comprises a radio isotope fuel source, thermal insulation against heat loss, a biological shield against the escape of ionizing radiation, a material having a surface which attains incandescence when subject to isotope decay heat and means for transferring energy from the insulated fuel source to produce incandescence of the surface and thereby emit light.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: July 25, 1978
    Assignee: AGA Navigation Aids Ltd.
    Inventors: Nigel Lawrence Spottiswoode, David John Ryden
  • Connection device
    Patent number: 4101229
    Abstract: The disclosure relates to a connection for connecting at least two members to each other, the first member having at least one projection and the second member having at least one recess for accommodating the projection. A through-hole is provided in the first member, in which hole a self-threading screw may freely run and which merges into a groove disposed in and along the periphery of the projection. The screw is inserted, via the hole, into the groove and threads itself into the material of the second member surrounding the groove.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: July 18, 1978
    Inventor: Torsten Waloddi Weibull
  • Injection blow molding method for hollow article having openings at both ends
    Patent number: 4101618
    Abstract: Injection blow molding method for a hollow article having openings at both ends, in which said method comprises the steps of: forming a parison having openings at both ends by injecting plastic material into the cavity of an injection mold which is provided with a stationary core member and a movable core member as disposed on the same axis, shifting said parison from said injection mold to said blow mold together with a movable core member, closing the remaining open end of said parison by a closing core member, and blowing said parison within said blow mold to produce a molded article having openings at both ends.
    Type: Grant
    Filed: November 29, 1973
    Date of Patent: July 18, 1978
    Assignee: Nissei Plastics Industrial Co., Ltd.
    Inventor: Katashi Aoki
  • Ultrasonic machining
    Patent number: 4100701
    Abstract: The invention relates primarily to ultrasonic machining which involves vibrating the part to be machined rather than a tool of the machine. To impart vibrations to the part to be machined it is secured to a metallic part for transmitting vibrations which is in turn connected to a transducer for converting electrical oscillations into mechanical vibrations. An abrasive is supplied to the space between the opposed operative faces of the tool and the part to be machined. The invention also relates to an installation for carrying out the method which includes a machining enclosure and a recycling assembly for recycling the abrasive liquid mixture which is used during the process.
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: July 18, 1978
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventor: Louis Pierre Bessaguet
  • Thermoelectric element
    Patent number: 4101342
    Abstract: A thermoelectric element having two annular components of dissimilar thermoelectric materials and a working junction therebetween and providing radial current flow.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: July 18, 1978
    Inventor: Kurt Landecker
  • Method and apparatus for transferring the weft
    Patent number: 4100944
    Abstract: A method and apparatus for controlling and transferring the cut end of a weft to a subsequent sliding shuttle clamp. The weft end is retained in the guide slot of the shuttle supply drum which was occupied by the previous shuttle before it was shot through the shed. A storage lever retracts the cut end of the weft to the intake side of the drum and the weft is then pivoted to the new shuttle.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: July 18, 1978
    Assignee: Omita S.p.A.
    Inventor: Cesare Germani
  • Multiple state responsive delta-sigma converter and delay line
    Patent number: 4101881
    Abstract: A digital delay line for an analog signal having an improved efficiency in converting between the analog and digital signal formats. The delay line operates by converting an analog output into a representative series of binary ones and zeros which are applied through a shift register at a set clock rate. The shift register output, at a selected delay interval, is reconverted to the original analog levels. The conversions are governed by a logic network which increases the conversion efficiency to permit a lower clock rate and shorter shift register without a corresponding loss in frequency response.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: July 18, 1978
    Assignee: Hybrid Systems Corporation
    Inventor: Richard E. De Freitas
  • Apparatus for measuring the volume of a flowing fluid, particularly a gas in pipes
    Patent number: 4100803
    Abstract: Apparatus for measuring the volume of flowing fluid or gas in pipes of relatively small diameter. A casing having a measuring wheel therein is coupled to the pipe by means of a single duct pipe connection. The annular clearance within the apparatus through which the fluid flows is axially variable by means of an adjusting ring to accommodate variations in the state of the fluid.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: July 18, 1978
    Assignee: Gas- und Wassermesserfabrik AG
    Inventor: Heinz Gass
  • Low distortion mirror for high power laser beams including a rear reflective surface
    Patent number: 4099853
    Abstract: A reflector for a high power laser beam comprising a low absorption, transmitting substrate with a rear reflective coating. The reflector element consisting of the substrate and rear coating is mounted within a housing using low stress supports to prevent deformation of the reflective element and resulting loss in optical beam quality in the reflected laser beam. Coolant is sprayed onto the rear surface of the reflector element preferably in a pattern which modulates the coolant flow volume in accordance with the intensity distribution across the incident laser beam so as to maintain uniform heating in the reflective element and further to prevent distortion in the reflected beam.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: July 11, 1978
    Assignee: Jersey Nuclear-AVCO Isotopes, Inc.
    Inventors: Sheldon L. Glickler, Paul G. DeBaryshe
  • Cardiac pacer circuitry to facilitate testing of patient heart activity and pacer pulses
    Patent number: 4099530
    Abstract: A demand cardiac pacer having provisions for determining power source life status both during normal heart operation and during heart stimulation by the pacer. An external magnetic pulse of relatively long duration induces a test mode in the circuit, the pacer reverting to the pacing mode immediately after removal of the magnetic stimulus. When producing pacing pulses in the pacing mode, testing of the patient's heart is facilitated by providing an external magnetic pulse of relatively short duration which is insufficient to place the pacer in the test mode but of sufficient length to inhibit pacing pulses. This invention applies to preset frequency pacers as well as to programmable pacers and includes means for observing the preprogrammed pulse frequency immediately after programming.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: July 11, 1978
    Assignee: American Pacemaker Corporation
    Inventors: Chieh Y. Chen, Wesley R. Grace
  • Free jet laser amplifier
    Patent number: 4099131
    Abstract: A free jet dye laser having a sheet of fluent laser material bounded along its edges by a pair of opposed guide members. An orifice injects the sheet of laser fluid into the region between the guide members where it flows towards a transparent portion of the guide members through which a beam of laser radiation to be amplified is directed. Pump excitation in the form of laser energy is applied through an exposed surface of the flowing laser material in the region between the transparent portions.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: July 4, 1978
    Assignee: Jersey Nuclear-Avco Isotopes, Inc.
    Inventor: Charles T. Pike
  • Electrical interconnection boards with lead sockets mounted therein and method for making same
    Patent number: 4097101
    Abstract: An electrical interconnection board with lead sockets mounted in holes therein. The lead sockets are hollow cylindrical elements having a tapered opening at one end and a plurality of normally converging flexible fingers at the other end. The lead sockets are force fitted into the holes in the board with the receptacle end of the socket opening into the component side of the board. The invention is also concerned with the method for mounting lead sockets to electrical interconnection boards.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: June 27, 1978
    Assignee: Augat Inc.
    Inventors: Richard C. Holt, Neil F. Damon, Richard J. Hanlon
  • Water conduit
    Patent number: 4095750
    Abstract: A water conduit of flexible material serves as an irrigation device or as a drainage pipe. At regular or irregular distance from one another cuts are made in the wall of the conduit resulting in tongue like portions which adhere to the wall of the conduit along an uncut portion. These tongues are movable out of the plane of the wall and have an outer surface which is smaller in area than the inner surface thereof.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: June 20, 1978
    Inventor: Gideon Gilead
  • Emergency table lamp
    Patent number: 4096553
    Abstract: An emergency table lamp which functions as an ordinary table lamp during non-emergency conditions and which provides emergency illumination upon loss of A/C power. The emergency table lamp is constructed so as to be aesthetically appealing while still allowing access to the emergency lighting electronics. A battery and charger assembly having spring terminals are held in place within the lamp body and electronically connected by means of an insulating contact plate secured within the lamp body and having appropriate bus bars for providing the required electrical connection. The contact plate allows independent removal of the battery and charger assembly for repair or replacement.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: June 20, 1978
    Inventor: Thomas F. Roche
  • Apparatus for harnessing tidal power
    Patent number: 4095423
    Abstract: An apparatus for harnessing and extracting a portion of the power generated by the rise and fall of ocean tides. A portion of a waterway is dammed and the difference in water levels across the dam provides a pressure differential which, through appropriate valving, feeds two sealed chambers which are used to contain air under positive pressure. The chambers are connected one each to alternate ends of a cylinder for driving a piston and rod assembly disposed therein, in reciprocating motion. The dam is comprised of a thin-walled structure which may be either rigid, conventional materials or flexible and flotationally supported.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: June 20, 1978
    Inventor: Alexander Moiseevich Gorlov
  • Method and apparatus for six degree of freedom force sensing
    Patent number: 4094192
    Abstract: A method for deriving the components of a load force applied to a force sensor, and a force sensor structure adapted for use with this method. A plurality of strain gauges are attached to the force sensing structure in such a manner that at least one strain gauge will provide an output indication of any force which may be applied to the sensor. By properly calibrating the sensor and processing the strain gauge outputs, the components of a load force applied to the sensor may be expressed in a Cartesian or other selected coordinate system without the need to provide for decoupling of the force components within the force sensor.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: June 13, 1978
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Paul C. Watson, Samuel H. Drake
  • Brush holder for motor or generator
    Patent number: 4095131
    Abstract: An electrical motor or generator brush holder for containing a brush having a terminal external to the holder. The holder comprises an electrically insulative body with a head portion containing an internally threaded recess for mating with a threaded cap for retention of a brush within the body. The head portion includes a transverse slit configured to permit insertion and removal of the electrical terminal of the brush via the recess and not materially affecting the strength of the holder.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: June 13, 1978
    Assignee: Torque Systems, Inc.
    Inventor: Richard J. Febonio