Patents Represented by Law Firm Weingarten, Maxham & Schurgin
  • Cable splicing technique
    Patent number: 4207429
    Abstract: An electrical cable splicing technique in which each joined conductor is insulated with a self-fusing insulator pad of rubber which preferably is fabric reinforced, the insulated conductors then being wrapped with uncured vulcanizable rubber tape to build up the splice to dimensions of a jacket sleeve. The sleeve, which is of molded fabric reinforced rubber, is then installed and bonded to the splice area.
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: June 10, 1980
    Assignee: Plymouth Rubber Company, Inc.
    Inventor: Robert A. Ward
  • Acousto-optic multiplexing and demultiplexing
    Patent number: 4206347
    Abstract: A system for multiplexing or demultiplexing pulsed laser radiation having an acousto-optical device which is electrically controlled to switch a common path of high pulse rate laser radiation between a plurality of spatially distinct paths for relatively lower pulse rate laser radiation at which the pulses are sequenced according to a predetermined time pattern. The acousto-optical element typically includes a Bragg cell which is electrically driven by a set of distinct frequencies, causing deflection of radiation passing therethrough at a predetermined set of angles whereby pulsed radiation on a single path may be distributed onto the plural separate paths or radiation on plural separate paths of time-sequenced pulses of radiation can be combined into a single path of augmented pulse rate.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: June 3, 1980
    Assignee: Jersey Nuclear-Avco Isotopes, Inc.
    Inventors: Kenneth Avicola, Robert S. Congleton, Gay W. Hong
  • Multiple sensor intrusion alarm system
    Patent number: 4206449
    Abstract: A multiple sensor intrusion alarm system including a central controller which communicates with a plurality of sensors over a single, interconnecting cable. The controller periodically polls each of the sensors, and in response to this polling signal, each sensor returns a signal indicating its status. The absence of a return signal from a particular sensor indicates to the controller that the sensor is malfunctioning or has been tampered with. In a preferred embodiment, the interconnecting cable is a single, two-conductor cable. The controller may also be connected to an alarm panel or remote monitoring station to indicate the presence of an alarm condition.
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: June 3, 1980
    Assignee: American District Telegraph Company
    Inventors: Aaron A. Galvin, Sheldon P. Apsell, Daniel Crown
  • System and method of fluorescence polarimetry
    Patent number: 4203670
    Abstract: A system and method for measurement of the polarization of fluorescence. A laser source provides a collimated linearly polarized beam of high intensity and small cross-section. A relatively small number of optical components are employed to minimize spurious fluorescence and spurious polarization which usually occurs from most optical materials. A photodetector provides an electrical signal in response to and representative of fluorescence polarization and is processed to directly produce first and second signals representing the difference and sum components of the polarization equation, the ratio of these components being directly provided without need for division computation.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: May 20, 1980
    Inventor: Nathan S. Bromberg
  • Floor mounted air conditioner
    Patent number: 4203302
    Abstract: A floor mounted air conditioner comprising a housing containing cylindrical condenser coils disposed about a normally vertical axis and cylindrical evaporator coils coaxially disposed above the condenser coils. A drip pan separates the condenser and evaporator coils and includes openings for discharging condensate onto the condenser coils for evaporation. A condenser fan is associated with a bottom duct adapted for installation in a mounting opening in the floor of a room, for blowing hot air through the mounting opening, and an evaporator fan is associated with a top duct for blowing cool air into the room being cooled.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: May 20, 1980
    Assignee: The Laitram Corporation
    Inventor: James M. Lapeyre
  • Laser ring resonator with divergence compensation
    Patent number: 4203077
    Abstract: A ring laser configuration operative to reduce divergence in the laser beam circulating within the ring and provided as an output. The ring laser configuration includes an odd number of reflectors in the ring path with one or more polarizer crystals for providing input and output coupling. The use of an odd number of reflectors creates an inversion in each pass of the radiation through a flowing active medium within the ring path to provide averaging of the divergence effects of the medium in the flow direction.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: May 13, 1980
    Assignee: Jersey Nuclear Avco Isotopes, Inc.
    Inventors: Keimpe Andringa, Charles T. Pike
  • Furnace flue apparatus for improved fly ash separation
    Patent number: 4202280
    Abstract: The disclosed apparatus is disposed in the "U"-section deflector at the bottom end of flues connected to each other in a multiple-flue, vertical flue furnace. A deflecting plate and two associated projections, one on the plate and the other on the wall, influence the flow of gases in such a manner that first the radius of curvature of the gas making the turn is decreased, and second the distribution of flow at the input cross-section of the flow-receiving flue is more uniform. The first effect improves the effectiveness of fly ash removal from the turning gas stream. The second effect prevents localized sooting and uneven heating of a heat exchanger which may be installed in the end of the receiving flue.
    Type: Grant
    Filed: March 1, 1978
    Date of Patent: May 13, 1980
    Assignee: Von Roll AG
    Inventors: Rolf Bereiter, Alexander Jachimowski
  • Hot melt adhesive gun
    Patent number: 4199082
    Abstract: A hot melt adhesive gun capable of dispensing relatively large volumes of molten adhesive and comprising a hot melt chamber and a pressurized air chamber separated by a moveable element which isolates the chambers one from the other. Molten adhesive from an associated bulk supply is fed into the hot melt chamber by means of a supply nozzle temporarily plugged into a valved inlet passage of the gun only when necessary to charge the gun with a fresh supply of molten adhesive. Upon actuation of the gun trigger, pressurized air in the air chamber, drives the moveable element forward to cause adhesive to flow out of the nozzle. Upon release of the trigger, adhesive flow from the nozzle valve is discontinued. The novel gun also includes a pressure relief valve and relief port to allow the escape of trapped gas which can build up in the melted adhesive and which exceeds a predetermined pressure level.
    Type: Grant
    Filed: May 9, 1978
    Date of Patent: April 22, 1980
    Assignee: Ornsteen Chemicals, Inc.
    Inventor: Robert L. Ornsteen
  • Ship ladder
    Patent number: 4199040
    Abstract: A ladder is provided which is especially adapted for shipboard use and which is safe and comfortable to use, of relatively light weight and occupying relatively small floor and overhead space. The ladder comprises a single stringer disposed between upper and lower deck or floor levels at a predetermined angle of inclination, and having an array of half treads on each side of the stringer, each array being vertically spaced from the other along the length of the stringer. The half treads are affixed to and extend from the respective sides of the stringer and each include an integral outwardly extending portion which terminates in a plane forward of a plane passing through the front edges of the treads. Handrails are disposed in this forward plane and are affixed to and supported by the outwardly extending tread portions.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: April 22, 1980
    Assignee: The Laitram Corporation
    Inventor: James M. Lapeyre
  • Method and apparatus for placing concrete under water
    Patent number: 4199279
    Abstract: An improved method and apparatus for placing concrete under water in an easy and effectual manner. The method comprises the steps of: immersing a tremie tube having a special valve device, into water; transferring concrete through the tremie tube; closing the valve device while the outlet of the tremie tube is kept within the deposited concrete; and lifting the tremie tube to move it to another point. The above valve device is provided with a cylindrical elastic valve member fitted in a cylindrical member forming a space to receive a fluid under pressure and, when the fluid space is supplied with a pressurized fluid, the elastic valve member is folded and expanded in inward radial directions to close up the concrete passage of the tremie tube. Another aspect of the invention is to propose the measurement of the state of deposited concrete by means of a concrete surface detecting device.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: April 22, 1980
    Assignee: The Shimizu Construction Co., Ltd.
    Inventors: Akio Himeji, Tadahiko Okumura, Yasuo Kajioka
  • Fibre mat for the dry production of compressed mouldings
    Patent number: 4198460
    Abstract: A fibre mat of ligno-cellulose fiber layers bonded to a deformable support layer. The support layer is formed of intersecting discrete filaments in a loop configuration where the planar or shear-deformability of the support layer is substantially matched to the fiber layers. The invention also includes the method for making the fiber mat.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: April 15, 1980
    Assignee: KCE Kiss Consulting Engineers Verfahrenstechnik GmbH
    Inventor: Gunter H. Kiss
  • Modular stand construction system
    Patent number: 4195451
    Abstract: A transportable stand construction system generally comprised of a plurality of seat modules. The system includes a support frame, support means on the support frame to be spaced from and normally parallel to a surface on which the system rests, and a floor-carrying member which is part of the seat module. Connecting means are arranged adjacent a rear end of the floor-carrying member and are locatable on the support means to position the rear end of the seat module substantially horizontally. The front end of the floor-carrying member is arranged to be supported directly by the surface beneath the system or by support means of a further support frame to be arranged at a lower level than the support means of the first support frame. The system also normally includes modular step members to provide gangways spaced at predetermined distances by a series of the seat modules.
    Type: Grant
    Filed: March 28, 1978
    Date of Patent: April 1, 1980
    Assignee: Exhibition Showplace Services Limited
    Inventor: Barry M. F. Jarvis
  • Vehicle suspension
    Patent number: 4195859
    Abstract: A vehicle suspension system capable of accommodating considerable upward and downward movement of individual wheels and having a lever which is pivotable relative to the chassis about an axis extending longitudinally of the vehicle against the action of a spring, one end of which is slidable transversely relative to the lever.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: April 1, 1980
    Inventor: Nestor E. Kyriacou
  • Gasket strip for butt joint compression seal
    Patent number: 4195850
    Abstract: In order to form a tighter seal, especially at corner butt joints, between polygonal construction plate elements which are pressed together at their edges with an intervening gasket strip, the strip is provided at its critical sealing section with a second material of greater elasticity than the first, main gasket material. A third material which plastically deforms under pressure is partially embedded in the second material. The pressure of the second material when compressed forces the third material to flow into low seal pressure spaces and gaps of the seal to form a bonded seal with a seal pressure which is distributed by the deformation of the third material. Various configurations of the gasket cross-section and of corner segments are described.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: April 1, 1980
    Assignee: Datwyler AG, Schweiz. Kabel-Gummi-u.Kunststoffwerke
    Inventors: Ernst Berger, Norbert Herwegh
  • Alarm system having improved false alarm rate and detection reliability
    Patent number: 4195286
    Abstract: An alarm system has two output modes, one providing relatively high detection probability and the other providing relatively low false alarm probability. Two or more sensors are coupled to an associated logic circuit which provides a first alarm output in response to actuation of any one of the sensors, and a second alarm output in response to actuation of the two or more sensors within a predetermined time interval.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: March 25, 1980
    Assignee: American District Telegraph Company
    Inventor: Aaron A. Galvin
  • Teaching aid device for teaching the basic principles of arithmetic
    Patent number: 4192085
    Abstract: One face of a tablet is divided into a plurality of adjoining regions. The two edge regions at the right and left have rows which in each region are divided into a plurality of fields and are numbered continuously with primarily basic numbers and their multiples, from one edge region continuing into the next. A number of slides, equal to the number of rows in each of the edge regions, lie loosely on the tablet, so that each slide may be pushed along the corresponding two rows which are at the same level of the edge regions in order, as desired, to thereby at least partially cover one or the other of these rows, so that the result of an arithmetic operation carried out in one or the other region can be read from the exposed field adjacent the end of the corresponding slide.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: March 11, 1980
    Assignee: Guido Caviezel
    Inventor: Simon Bonorand
  • Gaging system with pivotable gage bar
    Patent number: 4192168
    Abstract: Gaging apparatus for a metal forming machine having a gage bar which is pivotable about a central longitudinal axis of the bar and which is maintained in a normal position by a spring mechanism. In the presence of an upward force applied to the bar, the bar will pivot upwardly, and upon removal of the upward force, will be returned by the biasing action of the spring mechanism to its rest position. A switch can be associated with the gage bar for actuation during upward movement of the bar to provide a control signal to the gage positioning system to cause withdrawal of the bar away from the metal being formed.
    Type: Grant
    Filed: January 4, 1979
    Date of Patent: March 11, 1980
    Assignee: Dynamics Research Corporation
    Inventor: James J. Di Ciaccio
  • Isolation amplifier with high linearity
    Patent number: 4191929
    Abstract: A transformer-coupled isolation amplifier which can accept signals over a wide dynamic range while maintaining very high linearity. An input signal is applied to an input winding of a transformer. The secondary winding of the isolation transformer is connected across the differential inputs of a high-gain amplifier. Negative feedback is provided around the amplifier so that the transformer secondary winding is connected across a virtual short; and the negative feedback tends to drive the voltage applied to the inputs of the amplifier to a very small value. The negative feedback from the amplifier induces a current in the transformer secondary which cancels the flux produced by current flowing in the primary, thereby reducing the effects of non-linearities in the BH curve of the transformer.
    Type: Grant
    Filed: June 5, 1978
    Date of Patent: March 4, 1980
    Assignee: Analogic Corporation
    Inventors: Solomon M. Max, Hans J. Weedon
  • Cigarette lighter
    Patent number: D254873
    Type: Grant
    Filed: October 25, 1977
    Date of Patent: April 29, 1980
    Assignee: Yoshinaga Prince Co., Ltd.
    Inventor: Sadao Yoshinaga
  • Circuit board
    Patent number: D255351
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: June 10, 1980
    Assignee: Midgard Electronic Company, Inc.
    Inventor: David Pettijohn