Patents Represented by Law Firm Weingarten, Maxham & Schurgin
  • Patent number: 4282300
    Abstract: A method and apparatus for producing a highly readable diazo copy from a blue line original. An illumination source provides actinic energy which is substantially absorbed by the blue image of a diazo blue line print and in which no substantial exposure of the diazo paper can occur from energy which is non-responsive to the blue image. The light source produces major energy in the range of about 4600 to 5900 Angstroms. A filter or other means is provided to remove any spurious wavelengths which are non-responsive to the blue image and which can expose the diazo paper.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: August 4, 1981
    Assignee: Eliott Industries
    Inventor: Howard W. Wegener
  • Patent number: 4282247
    Abstract: Anti-anaphylactic and anti-allergic 5-(2-hydroxy-3-thiopropoxy) chromone-2-carboxylic acids of the general formula ##STR1## wherein R is alkyl, alkenyl, hydroxyalkyl, cycloalkyl, cyclo-alkylalkyl, their alkali and alkaline-earth metal salts and 1-4 C alkyl esters as well as a process for the preparation thereof and pharmaceutical compositions containing them.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: August 4, 1981
    Assignee: CM Industries
    Inventors: Andrea Pedrazzoli, Sergio Boveri
  • Patent number: 4281885
    Abstract: A line telecommunications cable end system which is particularly suitable for installation in a rack, such as a casing, for supporting and fixing a lead-in cable end and for mounting terminal and/or isolating strips. The system comprises at least one pair of spaced, parallel earthing strips which each have a row of tags formed integrally on the top thereof. The tags extend through the end face of a corresponding number of terminal or isolating strips with LSA contacts and are of such a length that they can contact associated equipment such as a surge diverter.
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: August 4, 1981
    Assignee: Krone GmbH
    Inventors: Horst Forberg, Wolfgang Radelow
  • Patent number: 4279460
    Abstract: An electrical crimp connector for making a connection between an insulated wire and a connecting element. The connecting element comprises two limbs which define a slot into which the wire can be inserted, the dimensions of the slot being such that the insulation of the wire is cut. The connector has a clamping element on which the connecting element is secured at an angle of approximately 45.degree.. A plurality of connecting elements connected in pairs are housed in a number of interconnected clamping elements and formed into a unit. The connecting elements are connected by a transverse web and are pluggable into the clamping element, separate external wire-rod guides for the incoming and outgoing conductors are formed on the clamping element and the clamping element has a smooth bottom surface.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: July 21, 1981
    Assignee: Krone GmbH
    Inventor: Horst Forberg
  • Patent number: 4279541
    Abstract: A stop end piece for closing particularly gutters, comprises a plate having a peripheral channel which is formed by the bent peripheral edge of the plate and a portion extending along said edge, which portion protrudes from the plane of the plate in the same direction as said peripheral edge. The peripheral edge has teeth which extend across the channel obliquely towards said portion and bear against or terminate at a small distance from the boundary surface of said portion, which faces said peripheral edge. The end of the gutter to be closed can be pressed into the channel, the teeth urging the inner side of the gutter wall into snug engagement with said boundary surface and simultaneously preventing withdrawal of the gutter end from the channel by their engagement in the outer side of the end of the gutter.
    Type: Grant
    Filed: May 31, 1979
    Date of Patent: July 21, 1981
    Assignee: Lindab Platisol AB
    Inventors: Peter E. Bruhn, Finn U. H. Jensen
  • Patent number: 4279516
    Abstract: A vertically standing, slender, cylindrical flow container with an upper intake connection for crushed raw sludge already heated to a pasteurization temperature and a lower outlet connection for pasteurized sludge. A slowly rotating guide member is incorporated into the container coaxially with the longitudinal axis of the latter and is driven by an electric motor via a reduction gear. The tube-like guide member core is provided with a plurality of continuous, helically-wound blades which extend from top to bottom and which, with respect to the direction of rotation of the guide member, form front and rear helical deflectors for the sludge. The helically wound blades also subdivide the circular cross-section of the passage of the container into a plurality of helically-wound individual channels.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: July 21, 1981
    Assignee: Von Roll AG
    Inventor: Erich Zeltner
  • Patent number: 4278390
    Abstract: A vehicle for transporting garbage containers or the like fron one place to another. The vehicle includes a mast which is disposed on a flat bed to the rear of a truck cab and which is capable of traveling longitudinally along the length of the truck bed from one end adjacent the cab to the other end. Extending from the mast is a boom and pivotally secured to the distal end thereof is a fork lift assembly. The boom may be raised or lowered hydraulically while the attitude of the fork lift assembly may also be adjusted hydraulically. A parallel motion mechanism links the fork lift assembly to the mast and maintains the fork lift assembly at a pre-adjusted attitude regardless of the elevation of the boom. Hydraulically-operated clamping arms are provided on the fork lift assembly to clamp a lid down on a container during lifting of the container onto the truck and during transportation of the container to another location.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: July 14, 1981
    Inventor: Thomas M. Ahearn
  • Patent number: 4276776
    Abstract: A temperature or pressure gauge capable of providing a magnified output indication of a respective sensed temperature or pressure of a fluid. Overlapping surfaces are movable relative to one another in response to sensed changes in temperature or pressure of a fluid. Each surface is provided with an aperture, a light controlling edge, or an indicator which overlaps and intersects at an acute angle a respective aperture, edge or indicator on the other surface. Rotary motion or other motion induced by the sensing element is translated into linear movement of the point of intersection of the two apertures, edges or indicators, the linear movement being greater in magnitude than the movement of the sensing element. This gauge is suitable for strip chart recording, for visual observation or for electrooptical reading.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: July 7, 1981
    Assignee: The Laitram Corporation
    Inventor: James M. Lapeyre
  • Patent number: 4276517
    Abstract: A CO.sub.2 medium is optically pumped by a five micron CO laser to the 03'0 level which radiates with 16 micron emission to the 02.degree.0 level. The resulting 16 micron laser finds application in laser uranium enrichment operating to provide excitation of uranium hexafluoride particles. Terminal level blockage, or bottlenecking, in the 02.degree.0 level is optionally avoided for continuous mode operation by 10 micron excitation with a CO.sub.2 laser from the 02.degree.0 to the 00.degree.1 level. The CO.sub.2 is then diluted by mixing nitrogen gas with it to promote energy transfer to the V=1 vibrational level of the nitrogen, thereby insuring maintenance of the inversion necessary for efficient, high power lasing in the 03'0 to 02.degree.0 transition.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: June 30, 1981
    Assignee: Jersey Nuclear-Avco Isotopes, Inc.
    Inventor: Gary L. McAllister
  • Patent number: 4276603
    Abstract: An automatic microprocessor-based control system for a diffusion furnace in which the controller is dedicated to a single associated diffusion tube to provide all monitoring and control functions necessary for a variety of diffusion processes. The controller provides direct digital control of time, temperature and gas flow, and can be readily operated with a variety of control algorithms.
    Type: Grant
    Filed: October 30, 1979
    Date of Patent: June 30, 1981
    Assignee: BTU Engineering Corporation
    Inventors: Martin A. Beck, John H. Fabricius, Donald G. Landis
  • Patent number: 4276014
    Abstract: A nozzle device used for injection-molding plastic products. In the present nozzle device, the hot runner may be formed into a block and set to a mold clamping mechanism irrespective of cavity mold. The device comprises a hot runner block of fixed length having a plurality of nozzles at one side thereof and a sprue at the other side thereof, the nozzles and the sprue being placed in communication with each other by the runner, and a base plate having a plurality of support plates. The nozzles may accessibly come into contact with gates of a cavity mold. In this device, no overheating occurs in the periphery of the gates of the mold.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: June 30, 1981
    Inventor: Katashi Aoki
  • Patent number: 4274276
    Abstract: A method for making a centrosymmetrical spider of a universal joint by extrusion molding involves pressing both end faces of a cylindrical blank the same distance towards the center of the blank to force the blank material radially outwards from the center of the cylindrical blank in a stream which is symmetrical relative to the two end faces and into a cavity of a split mold.Also disclosed is a molding apparatus for practicing the method. The apparatus includes a floating mold. One end of the apparatus can be rigidly fixed to a press for operating the punches which provide the extrusion pressure.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: June 23, 1981
    Assignee: Etablissement Supervis
    Inventor: Karl Mettler
  • Patent number: 4275343
    Abstract: A back EMF controlled, synchronous, permanent magnet motor capable of extremely high rotation speeds at high efficiency. The motor includes a permanent magnet flux source and excitation coils for producing a rotating magnetic field mounted on an iron free form to substantially eliminate core loss and resulting rotor drag. Back EMF is determined directly from the excitation and controls the excitation to produce a torque angle of substantially 90.degree. between the magnet and coil fluxes. Coil excitation is used at maximum efficiency and hunting is avoided. The permanent magnet provides a high flux density that also allows a low current in the motor coils and thus reduces coil copper losses to further improve efficiency.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: June 23, 1981
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Donald E. Fulton, William P. Curtiss
  • Patent number: 4273374
    Abstract: A device is disclosed for anchoring an upright pole or other supporting means used to support an intravenous bottle holder, particularly for use in an emergency vehicle, such as an ambulance. The anchoring device is particularly useful to secure the upper extremity of a pole to the vehicle inside roof surface, and in one embodiment of the device, a locking feature is provided with the anchoring device to prevent accidental disengagement of the pole and holder. The pole is typically mounted upon a platform, such as a cot used in emergency transport of patients, and with use of the invention, inconvenient and undesirable swaying of the pole and rotation of the holder is prevented, thereby minimizing a safety hazard to ambulance attendants and the patient.
    Type: Grant
    Filed: January 3, 1979
    Date of Patent: June 16, 1981
    Inventor: Stanley J. Portman
  • Patent number: 4272644
    Abstract: A hybrid package which includes a plastic shell having an integral interior configuration for support of a ceramic substrate and terminal pins, and an encapsulate for rigid retention of the pins and for sealing of the package.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: June 9, 1981
    Assignee: Hybrid Systems Corporation
    Inventors: Ronald C. Visser, G. James Estep, Alan S. Esbitt
  • Patent number: 4272295
    Abstract: This invention relates to a starch based adhesive comprising a lyophilic colloid, a partially gelatinized starch and water and to a process for manufacturing such adhesives comprising the steps of mixing a lyophilic colloid with a starch and water and then partially gelatinizing the starch. Preferred lyophilic colloids include carboxymethyl cellulose and fully gelatinized starch. An advantage of the adhesive is that properties of the adhesive may be conveniently controlled by control of the ratio of the components and the degree of partial gelatinization.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: June 9, 1981
    Assignee: N. B. Love Industries Pty. Ltd.
    Inventor: Kaljo Linke
  • Patent number: 4272662
    Abstract: A sub-miniature switch having a pre-shaped wire spring contact movable to one of a plurality of operating positions. The pre-shaped wire spring contact performs the biasing and the detenting functions in addition to the contact function in the switch. Either a toggle, pushbutton or slide may be used for the actuating means of the switch. The wire contact may be pre-formed to provide whichever operating positions are desired. A multiple-pole switch may be constructed using the principles of this invention having a size substantially the same as a similar purpose single-pole switch.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: June 9, 1981
    Assignee: C & K Components, Inc.
    Inventor: Kenneth Simpson
  • Patent number: 4272702
    Abstract: A fluorescent lamp constituted by joining a pair of shells of glass that at least one of the shells is molded. A recess is formed on a portion of the jointing surface of the shells so as to become circular when the shells are overlapped each other. An exhaust tube and lead-in wires of electrode stem are hermetically fixed in the recess by adhering or by welding. An anode getter plate is arranged independently from an electric circuit including an electrode filament.
    Type: Grant
    Filed: January 19, 1978
    Date of Patent: June 9, 1981
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Toru Teshima, Kazuo Ariga, Norimasa Oinuma, Mitunari Yoshida
  • Patent number: 4272639
    Abstract: A high temperature electrical resistance heater for use within a high temperature furnace. The heater comprises an elongated tubular element which includes a first axially extending helical section of high resistance and a second axially extending tubular section which is contiguous with and electrically and thermally joined to the helical section and of low resistance. An elongated solid or tubular rod is disposed coaxially within the tubular element and is affixed at one end to the confronting end of the helical section. Fastening elements are provided to maintain the coaxial position of the rod within the tubular element and to maintain the helical section in compression. The coaxial ends of the rod and tubular section include electrical terminals for connection to an external power source. In an alternative embodiment, a second elongated tubular element is coaxially disposed within the first tubular element and includes both a helical section of high resistance and a tubular section of low resistance.
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: June 9, 1981
    Assignee: BTU Engineering Corporation
    Inventor: Jacob H. Beck
  • Patent number: 4270523
    Abstract: A heat storage apparatus comprising a plurality of heat exchanger elements mounted in a housing. Each element has a central portion containing a storage medium, surrounded by portions through which a first and a second heat transfer fluid can be passed in heat contact with said storage medium. Means are provided for passing the heat transfer fluids from respective supply conduits through the apparatus through the respective portions of the heat exchanger elements to respective discharge conduits.
    Type: Grant
    Filed: March 9, 1979
    Date of Patent: June 2, 1981
    Assignee: Stichting Bouwcentrum
    Inventor: Joannes M. van Heel