Patents Represented by Law Firm Beehler, Pavitt, Siegemund, Jagger, Martella & Dawes
  • Patent number: 4823025
    Abstract: An electronic circuit element with field-effect operation and with such characteristics that its source terminal (2) is to be connected, in the case of an N-type element (1a) to the positive, and in the case of a P-type element (1b) to the negative pole of a current source, said element (1) being non-conducting if its gate terminal is at the voltage of the pole connected with the drain terminal (3). This element (1) can be used as a memory circuit, for forming a trivalent switching circuit, and as an analogue amplifier with a negative resistance characteristic. Such an element (1) can be assembled from a series connection of an n-type and a p-type field-effect transistor (11a, 11b) having their source electrodes (12) interconnected, the gate terminal (4) being formed by the gate electrode (14) of the n-type or p-type transistor (11a, 11b) resp., the gate electrode (14) of the other transistor being connected with the drain electrode (13) of the first one.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: April 18, 1989
    Inventor: Johan D. Spek
  • Patent number: 4820302
    Abstract: Bio- and blood compatible materials are prepared by treating the surface of a substrate to provide reactive primary or secondary amine groups sites which are activated by treatment with a dialdehyde or arylchloride for coupling to a biological in an amount sufficient to provide compatibility. The use of specific substrates, such as a compliant, and elastic material, such as a fabric-elastomer membrane matrix, results in a product having advantageous qualities as a thermal burn dressing, breast prostheses and implants. Detailed procedures and various products are described.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: April 11, 1989
    Assignee: Sterling Drug Inc.
    Inventor: E. Aubrey Woodroof
  • Patent number: 4820070
    Abstract: A dispenser for stick type products such as cosmetics and the like which tend to shrink with age includes a novel cup or godet to prevent the stick from moving axially out of the cup. The interior wall of the cup includes a plurality of spaced axially disposed and radially inwardly projecting ribs of dove-tail cross-section. These ribs bite into the stick and function as dove-tail locks to prevent the outer surface of the stick from moving axially and rotationally with respect to the cup, even if stick shrinkage takes place. A screw type dispenser is also described as typical of the types of dispenser with which the cup may be used.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: April 11, 1989
    Assignee: Spatz Laboratories
    Inventor: Walter Spatz
  • Patent number: 4821002
    Abstract: Signal degradation is minimized in an electronic polarizer of the type having a circular input waveguide, rectangular output waveguide and an intermediate electromagnetic coil. A ferrite core is contained between impedance matching transformers within a small diameter intermediate waveguide section and air gaps are minimized by ferro-magnetic washers pressed onto the intermediate waveguide to hold the transformers in close contact with the ferrite core ends. The washers also support the electromagnetic coil coaxially within the cylindrical input waveguide, enhance the efficiency of the coil and define the transition walls between the small intermediate waveguide and the larger input and output waveguides.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: April 11, 1989
    Inventor: Robert A. Luly
  • Patent number: 4809913
    Abstract: For seeding plots of ground where the seed can be spread over the surface and thereafter cultivated into the soil, use is made of a container in the form of a jar to hold the seed and from which the seed can be ejected by a stream of water. In the device of the invention water serves a multiple purpose. A stream of water is projected through a valve into the jar. One portion of the stream, with the aid of an auxiliary pasage, is deflected into the mass of seed of make a slurry. At the same time another portion of the stream with the aid of a second passage travels across the slurry and emerges from an outlet nozzle drawing with it portions of the slurry with its complement of seed. Moistened seed and the accompanying mass of water is ejected and spread over the area to be planted.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: March 7, 1989
    Inventor: Theodore Gunlock
  • Patent number: 4808029
    Abstract: A system for subterranean storage of energy comprises a lower and a higher cavern formed in a subterranean salt formation, both caverns being partially filled with salt solution, a gas supply for pressurizing a head space in each cavern, a first channel interconnecting the liquid filled portions of the caverns, a second channel interconnecting the pressurized head spaces, and a pumping-generating plant at the ground surface connected between two vertical branches of the first channel. The plant is operable for pumping liquid through the first channel from the lower to the higher cavern when supplied with energy, or for generating energy when driven by liquid flowing through the first channel from the higher to the lower cavern. The gas supply maintains a pressure equal or greater to the hydrostatic pressure differential between the liquid filled spaces in the caverns and also sufficient for driving the liquid from the lower cavern to the ground surface.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: February 28, 1989
    Inventor: Arnold W. J. Grupping
  • Patent number: 4804300
    Abstract: As an alternative to the drilling of relatively long holes through a mass of material to provide a passage for fluid coolant the invention makes use of a laterally open elongated slot cut into the mass of material into which easily worked material is embedded to form the fluid passage. One alternative is to lay a preformed length of tube in the slot and secure the tube in place with an appropriate bedding mass. Another is to make use of a molding expedient, namely, packing the passage with a moldable material in which an elongated core is embedded and then removing the core to form the fluid passage.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: February 14, 1989
    Assignee: CBC Industries, Inc.
    Inventors: Gary Tsui, Thomas Heimbigner
  • Patent number: 4803796
    Abstract: The invention has reference to an animating mechanism for appendages of a toy figure where different appendages are given different motions. When applied to a winged figure, by way of example, the wings are given an up and down flap-like motion and the arm at the same time is swung laterally back and forth. For power an electric motor drives a rotating eccentric cam wheel. An eccentrically located pivot pin on the wheel has an articulated connection to the wings. At the same time a cam riding around an eccentric cam track on the same wheel causes a vertical rod to rotate, first in one direction and then in the opposite direction, so that the arm attached to the rod swings back and forth in a sidewise direction.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: February 14, 1989
    Inventor: Dwight M. Ottinger
  • Patent number: 4800507
    Abstract: A method of proving safe operation of a complex electronic circuit, and apparatus for carrying out the method, in which a proving signal having known characteristics is superimposed on an input to the circuit and the output is searched for said characteristics. An example involves the use of a microprocessor arranged to evaluate a fast Fourier transform algorithm on the coded carrier signal of a railway automatic train protection system or of railway a.c. track circuit arrangement.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: January 24, 1989
    Inventor: Christopher R. Brown
  • Patent number: 4796160
    Abstract: An improvement in a Radialens light control panel is comprised of the integral fabrication of a polarizing layer to the lowermost surface of the lighting panel opposing that surface of the Radialens panel in which a plurality of prismatic surfaces or lens elements is defined. The polarizing layer is laminated to the opposite surface of the Radialens panel after the Radialens panel is embossed and is still in a partially heated and plastic state. No adhesives are used to secure the bond between the polarizing layer and rear flat surface of the Radialens panel. The plurality of prisms or lenses defined in the opposing surface of the Radialens panel is embossed into the still plastic panel either immediately before or subsequent to the lamination with the polarizing sheet.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: January 3, 1989
    Inventor: Myron Kahn
  • Patent number: 4796074
    Abstract: The word line pitch within a read-only memory is decreased, thereby increasing the cell density within the memory, without imposing any additional or stricter spacing rules or fabrication techniques utilized in the manufacture of the read-only memory integrated circuit chip. The read-only memory is comprised of a plurality of memory cells. A two-dimensional semiconductor diode layer is laid down on a plurality of word lines which have previously been disposed upon a semiconductor supporting substrate. The semiconductor diode layer is disposed on the plurality of word lines without regard to any alignment criteria. A programmable material is inlaid on the Schottky diodes and a plurality of bit lines laid upon the programmable material. The bit lines and word lines are orthogonally disposed with respect to the Schottky diodes so that each diode is uniquely addressed by one word line and one bit line.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: January 3, 1989
    Assignee: Instant Circuit Corporation
    Inventor: Bruce B. Roesner
  • Patent number: 4793593
    Abstract: A load lifting device for temporarily lifting and supporting roof mounted equipment such as air conditioning units so that roof repairs may be made includes spaced beam sections insertable under the roof mounted equipment and jacks for raising such equipment off the roof. Each beam section includes an outer end which is raised relative to the portion inserted under the equipment, the jacks being received under the raised ends. The beam sections include stops which are positioned adjacent the equipment to keep the jacks spaced laterally of the equipment. After the repairs, the roof mounted equipment is lowered into place.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: December 27, 1988
    Inventor: Don Pittman
  • Patent number: 4791604
    Abstract: A sheet random access memory (SHRAM) is a truly random access, nonvolatile and transportable memory characterized by the cell density, size and power requirements of smaller dynamic memories but having the nonvolatile character of core memories or magnetic disks and tape and the rugged transportability of magnetic disk and tape. The SHRAM is characterized by a memory media comprising a two dimensional magnetic substrate and a fixed driving device for writing and reading into the substrate and a fixed sensing device for sensing the information at each cell location. In one embodiment the fixed sensing device is a sensing line in close proximity to a cell location. In a second embodiment, a fixed sensing device includes a Hall effect device which senses the magnetic configuration of the cell. In a third embodiment, the fixed sensing device includes an SCS thyristor in which the cathode gate is coupled to the magnetic configuration of the cell.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: December 13, 1988
    Assignees: Joseph J. Bednarz, Richard M. Lienau
    Inventors: Richard M. Lienau, Kenneth E. Pope
  • Patent number: 4790700
    Abstract: This invention relates to an improved integral machined spring adapted to be used in high speed spindles employing a tool holding mechanism which rotates with the spindle. The spring assembly includes a plurality of lands and slots arranged circumferentially and in tiers and includes a top and bottom face. The axial width dimension of the slots adjacent to the end faces is less than the axial dimension of the slots between the end faces in order to distribute the stresses more uniformly. The lands form a plurality of circumferentially arranged lobes whose radial dimension is greater than the portion between the lobes, again to distribute the stresses more uniformly. Various forms of the invention are described including a spindle assembly having a non-rotating actuating rod.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: December 13, 1988
    Inventor: Everett H. Schwartzman
  • Patent number: 4784082
    Abstract: A cat litter box system including a tray which may have inwardly canted edges and a waterproof bottom. Inserted in the tray is at least one orificed filter sheet, and preferably several, having some type of corner or edge lifting means. Also desirably provided is a filter protector comprising a mat having upward extending protrusions disposed in register with the filter sheet orifices to pass through the latter and protect the filter sheets from damage by the clawing of the cat through litter material which is deposited in the tray over the filter sheets and the filter protector, where the latter is also used. Deodorizing strips, capsules and/or filter protector tips may also be provided.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: November 15, 1988
    Inventor: Steven Wolfe
  • Patent number: 4779134
    Abstract: A simple and inexpensive digital circuit is employed for selectively assigning television channels to be output to a plurality of small auxiliary television monitors and a main television monitor. Each of the television monitors is digitally tuneable. After the original channel numbers are selected by the user for display on the main monitor and on each of the auxiliary monitors, the user may designate a new channel to be displayed on the main monitor. The new channel may be one of the channels presently being viewed on one of the auxiliary monitors or may be one of the channels which is not yet displayed. In the case where the channel to be displayed on the main monitor is then being displayed on one of the auxiliary monitors, the circuit interchanges the channel displayed on the main monitor with that on the auxiliary monitor.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: October 18, 1988
    Inventor: Stephen M. Mak
  • Patent number: 4774762
    Abstract: An automatic pneumatically powered crimping hand tool for making electrical connections is devised by advancing a bandoleer of contact carriers, each contact carrier including a contact, to align one of the contact carriers and contacts in an ejectable position within the tool. Once in the ejectable position, a pneumatically powered ejection pin is then longitudinally advanced into the contact carrier to eject the contact from the contact carrier into a crimping position. Once the contact is placed within the tool in a crimping position, the wire is then manually placed within the contact. The depression of a trigger automatically and serially activates the advancement of the contact carrier and ejection of the contact and then to drive four indentor pins into the electrical contact. The contact is mechanically deformed about the wire. The operation may then be repeated on the next serially connected contact within the bandoleer of contacts.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: October 4, 1988
    Assignee: McDonnell Douglas Corporation
    Inventor: Richard W. Gobeil
  • Patent number: 4773489
    Abstract: A core drilling tool for bore-holes includes a stem for connection to the string and an outer rotating tube for rotating a drill bit mounted thereon. A core tube is mounted in a central passage by a latch means to remove the core tube and/or replace it. The outer tube is rotated by a downhole motor such as a Moineau type motor. The diameter of the central passage through the stator is equal to the maximum diameter of the core tube plus the eccentricity of the stator to permit passage of the core tube into and out of the tool. Thus coring can be achieved without tripping the tool. Various details of the structure are described.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: September 27, 1988
    Assignee: Eastman Christensen Company
    Inventor: Friedhelm Makohl
  • Patent number: 4772879
    Abstract: A motion sensing alarm is disclosed. It is comprised of a time delayed switching circuit connected between a supply circuit and an electronic logic circuit. A triggering circuit is connected between the switching circuit and a false triggering circuit and the electronic logic circuit. An alarm initiating circuit is connected between the electronic logic circuit and an alarm.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: September 20, 1988
    Assignees: Sydney Harrison, Reuben Rothstein, Dinah Kalynchuk
    Inventor: Edward A. Hein
  • Patent number: D297650
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: September 13, 1988
    Assignee: K-Jack Engineering Co., Inc.
    Inventor: Jack S. Chalabian