Patents Represented by Attorney, Agent or Law Firm Arnold B. Silverman
  • Patent number: 5030692
    Abstract: Low fuming and less hygroscopic rubber compounding cashew nut shell liquid, allylphenol and alkylphenol modified resorcinolic novolak resins are made by condensing (A) a resol prepared by first reacting at least one monovalent phenol having the general formula (a) ##STR1## wherein R.sub.1 may be selected from the group consisting of hydrogen, an allyl, an alkyl of 1 to about 20 carbon atoms and an aryl having about 6 to about 12 carbon atoms, with methylformcel and/or furfural in the presence of an alkaline catalyst, or optionally reacting at least one monovalent phenol of the above-mentioned general formula (a) and cashew nut shell liquid, with methylformcel and/or furfural in the presence of an alkaline catalyst; and then (B) reacting the product of Step (A) with at least one of the compounds having the general formula (b) ##STR2## wherein R.sub.2 and R.sub.3 may be the same or different radicals selected from the group consisting of --H, --OH, --NH.sub.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: July 9, 1991
    Assignee: Indspec Chemical Corporation
    Inventor: Bojayan Durairaj
  • Patent number: 5028126
    Abstract: A spectacle frame comprising a pair of lens frames, a pair of temples hingedly connected to the outer portions of the respective lens frames, bridges each projecting from the inner portion of one of the lens frames toward the other lens frame, and a hinge portion provided at the forward ends of the bridges to make the lens frames inwardly foldable. The hinge portion has a pivot pin inclined at a small angle with a vertical line, so that when the spectacle frame is folded, the inner faces of the lens frames are opposed to each other with the temples opposed to the outer faces of the lens frames.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: July 2, 1991
    Assignee: Tamaki Optical Co., Ltd.
    Inventor: Yasushi Takeuchi
  • Patent number: 5028575
    Abstract: A process for chemically removing surface hydroxyl groups present on an aluminum oxide supported rhodium catalyst that is suitable for use as an automotive catalyst in controlling automative exhaust emissions is disclosed. The process includes removing the hydroxyl groups from the aluminum oxide supported catalyst by silation at a temperature preferably equal to or greater than about 450 K so that the conversion of active metallic rhodium Rh.sub.x (0) to oxidized rhodium species Rh.sup.(I) cannot substantially occur by reduction of the active hydroxyl groups. The silation is carried out by exposing the aluminum oxide supported rhodium catalyst to a gas phase alkylhalosilane. Subsequent to the silation, evacuation of the alkylhalosilane treated aluminum oxide supported rhodium catalyst is effected to remove substantially all unreacted alkylhalosilane. An associated catalyst suitable for use in automotive catalytic converter technology for environmental protection is also provided.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: July 2, 1991
    Assignee: University of Pittsburgh
    Inventors: John T. Yates, Jr., Dilip K. Paul, Todd H. Ballinger
  • Patent number: 5028290
    Abstract: A method of applying a tamper evident label to a package including the steps of depositing a liquid resin on a carrier tape and then treating the liquid resin to produce a label having an adhesive portion. The label is separated from the carrier tape and the adhesive portion is secured to the package. The label is then cured to create a tamper evident label on the package. An associated apparatus is also provided.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: July 2, 1991
    Assignee: TSL Incorporated
    Inventor: Yoram Curiel
  • Patent number: 5025551
    Abstract: A method of making a lead-acid battery includes providing continuous lengths of end separator stock, positive plate stock, intermediate separator stock and negative plate stock with optional use of end separators. The separators, positive plates and negative plates are individually severed from the continuous length of stock and sequentially formed into an assembly. The assembly is introduced into a battery cell container. A plurality of assemblies may be established prior to introduction into the battery cell container. In a preferred embodiment, the assembly zone moves relative to the cutting stations for the respective continuous lengths of stock and facilitates sequential establishment of the assembly without intermediate storage of the individual separators and elements.The apparatus includes equipment for supplying continuous lengths of end separator stock, positive plate stock, intermediate separator stock and negative plate stock.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: June 25, 1991
    Assignee: Sealed Energy Systems, Inc.
    Inventors: Michael V. Rose, Daniel E. Smith
  • Patent number: 5026988
    Abstract: A method and apparatus for determining material properties such as composition and structure of the surfaces of bulk materials and thin film sample members using time-of-flight medium energy particle scattering is provided. The method and apparatus are based upon scattering particles from a sample material or ejecting particles from the sample material. The particles may include both uncharged particles and charged particles. Particles are scattered into a chamber from a sample surface using known methods. The particles pass through the first of two grids which grid is held at ground potential and which limits the electrostatic field. The particles then pass through a very thin carbon foil which is held at a potential of -3kV. On passing through the carbon foil the particles emit secondary electrons. An electric field is created between the carbon foil and the second grid, which accelerates the secondary electrons. The electrons strike a first microchannel plate detector and this generates a start pulse.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: June 25, 1991
    Assignee: Vanderbilt University
    Inventors: Marcus H. Mendenhall, Robert A. Weller
  • Patent number: 5022274
    Abstract: The high temperature particle velocity meter is comprised of a pair of spaced apart conducting portions having disposed on each of their upstream edges a first and second non-conducting portion. The bombardment of the particles on the conducting and non-conducting portions creates charged particles in the pneumatically transported material. These particles discharge an electric current through the conducting portions to respective conductors and then to respective signal generating means. The signal generating means convert the electric discharges to an electronic signal. The electronic signals from each of the signal generating means are fed into a calculating means which calculate the particle velocity of the material based on the respective electronic signals. In another embodiment, the device can be used in a ceramic pipeline or a metal pipeline having its inner surface ceramically lined. In this embodiment, the device does not include the non-conducting portions as the pipe is already non-conducting.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: June 11, 1991
    Assignee: University of Pittsburgh
    Inventors: George E. Klinzing, Luis A. Borzone, Wen-Ching Yang
  • Patent number: 5020963
    Abstract: A device for clamping container comprises a support frame positionable around the container over approximately one half of the circumference thereof, a pair of substantially horizontal support rods provided on the inner side of the frame in the vicinity of respective opposite ends thereof, and a pair of claw plates mounted on the respective support rods upwardly and downwardly rotatable. The support rods extend away from each other in a horizontal plane toward their front ends. The claw plates have inwardly curved edges opposed to each other for the body of the container to partly fit in and each have an upper surface positioned at a higher level than the support rod. The shortest distance between the claw plates through the center of the container corresponds to the diameter of the container body, and the distance between the front ends of the claw plates is smaller than the diameter.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: June 4, 1991
    Assignee: Osaka Taiyu Co., Ltd.
    Inventor: Minoru Okada
  • Patent number: 5016626
    Abstract: A lung ventilator system has a demand valve to provide for spontaneous breathing with modification of the ventilator action to complement the spontaneous breathing and to synchronize restored forced ventilation with a last spontaneous breath. The system includes means to detect gas flow in the supply to the demand valve and to output a signal to the oscillator to modify or inhibit its operation in relation to the volume of gas drawn from the demand valve to vary the duration of the exhalation phase of the ventilation cycle. The system preferably uses a pneumatic oscillator with a feedback circuit connected to be influenced by the pressure drop across a restriction in the supply to the demand valve, signalled by the operation of selected ones of a plurality of inhibitor valves responding to different pressure drop levels.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: May 21, 1991
    Assignee: Instruments and Movements Limited
    Inventor: Norman S. Jones
  • Patent number: 5014284
    Abstract: A method and apparatus for processing electrical signals by modifying delta modulation to discrete slope delta modulation includes converting its electrical signals into compressed digital information, and representing this digital information as a sequence of slops or deltas added to the past value of the representation. For each sample period, a slope is chosen from slope tables having multiple entries and each choice is represented by a Huffman code. Signal compression occurs in two steps: first the selection of a small number of possible slopes provides compression and also the most probable slopes are represented by the shortest Huffman codes providing additional compression. Depending on the history of the slope chosen, multiple tables can be accessed with different slop entries. Two check point values are provided which code absolute output levels instead of slopes in order to facilitate recovery of the signal in the event of transmission errors.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: May 7, 1991
    Assignee: Cardiac Telecom Corporation
    Inventors: Alois A. Langer, Khalil J. Maalouf
  • Patent number: 5007457
    Abstract: A pneumatic oscillator especially useful for generating breathable gas pulses in a resuscitator and/or lung ventilator device has a reciprocable piston or equivalent controlling a poppet valve arrangement that includes a sealing lip coacting with a resilient facing. The sealing lip provides for sharp definition of a line of contact on the resilient facing and penetration of the latter by the lip is limited by stop means, preferably abutment(s) coacting with the facing adjacent to the line of contact with the sealing lip. This prevents wear and/or excessive indentation of the facing with consequent shift of the contact line and alteration of the oscillator characteristic with time.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: April 16, 1991
    Assignee: Instruments and Movements Limited
    Inventor: Norman S. Jones
  • Patent number: 5003618
    Abstract: Adaptive anisotropic digital filtering is automatically applied to the gray cale values of substantially of all the pixels in at least a portion of a digital image by, for each such pixel, selecting and angularly orienting the matrix of coefficients of an anisotropic filter kernel as a weighting function of the gray scale values of pixels in eight, 45 degree sectors under the kernel, and then performing a convolution of the gray scale values of pixels under the kernel with the rotated kernel to generate a filtered value for the center pixel. Local brightness of the image is adjusted either in conjunction with anisotropic filtering or separately by comparing for each pixel the average gray scale value of the pixels under the kernel with a reference value and applying a bias function to the center pixel grey scale value to brighten or darken the image dependent upon the results of the comparison.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: March 26, 1991
    Assignee: University of Pittsburgh of the Commonwealth System of Higher Education
    Inventor: Frank Meno
  • Patent number: 5001025
    Abstract: A method of electrochemically forming battery plate stock spaces are provided between portions of the battery stock which may be in coil form and have gaps between adjacent wraps. Forming is preferably accomplished in a forming tank with a forming element such as an electrode or coil of opposite polarity being positioned in spaced relationship with respect to the edge of the battery plate stock. The battery plate stock is subsequently severed into individual battery plates.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: March 19, 1991
    Assignee: Sealed Energy Systems, Inc.
    Inventors: Michael V. Rose, Norman Bagshaw
  • Patent number: 4998340
    Abstract: A method for the manufacture of lead-acid batteries and associated apparatus and a lead-acid battery design resulting therefrom is disclosed. The method involves providing a battery grid and pasting the grid with a battery paste such that a profiled and tapered battery plate is formed. This battery plate is wrapped onto a coil and cured in curing apparatus. A battery element is formed using coils of the finished plate stock, separator material, and winged end plate. After this, several battery elements are then placed into a battery container.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: March 12, 1991
    Assignee: Cal-Tec International, Inc.
    Inventors: Ellis G. Wheadon, Larry L. Forrer
  • Patent number: 4998989
    Abstract: A resilient closure snap fit onto a container having an end wall provided with a plurality of transverse grooves. A resin is deposited on the top surface of the end wall and into the grooves. If the closure is removed from the container, the top layer of resin and a portion of the resin in the grooves will fracture, thus indicating to the consumer that tampering with the container has occurred.In another embodiment, the closure comprises a rotatable portion and a fixed portion. The rotatable and fixed portion have grooves which are filled with a resin. When the rotatable portion is pivoted away from the fixed portion to open the container, a portion of the resin fractures, thus indicating tampering with the container.In another embodiment, the tamper evident closure comprises a closure body having an end wall and a skirt depending from the end wall and a closure lid movably secured to the closure body. The end wall and the closure lid define an upwardly open recess.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: March 12, 1991
    Assignee: TSL Incorporated
    Inventor: Yoram Curiel
  • Patent number: 4995213
    Abstract: A window sash frame which has fiberglass reinforced plastic framing members. The framing members have associated subframes. The subframes are joined at their ends so that the ends of the framing members are drawn towards each other to form a window sash frame having tight fitting corner joints. An associated method is also disclosed.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: February 26, 1991
    Assignee: Season-All Industries, Inc.
    Inventor: William P. Bezubic
  • Patent number: 4995716
    Abstract: A system, method, and apparatus for obtaining the corneal topography of an object using computer analyzed rasterstereographic images. The object may be nontransparent and diffusing, or it may be transparent and nondiffusing, such as a cornea. Rasterstereographic images of a cornea are produced by staining the cornea with a fluorescein solution which projects a light and dark line pattern onto the cornea through a grid. When obtaining the topography of a cornea, several different filters are used for producing and obtaining a grid image. An image processor uses unique software to store and analyze data extracted from the grid pattern. A video camera, an illuminator, the filters, and the grid may be mounted on a microscope.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: February 26, 1991
    Assignee: Par Technology Corporation
    Inventors: Joseph W. Warnicki, Paul G. Rehkopf, James L. Cambier, Salvins J. Strods
  • Patent number: 4993586
    Abstract: An adhesive bandage dispensing device is provided which facilitates efficient and quick access to an adhesive bandage. The device has a base, a spool holder, a removal platform having a slicer and cutter and an adhesive bandage carrier spool mounted to the device by the spool holder. A continuous strip of adhesive bandages is mounted on the spool. The strip consists of separate adhesive bandages wrapped in a protective coating. The action of pulling the strip away from the spool over the platform causes a portion of the protective covering of strip to be sliced by the slicer. This will expose a bandage which then can be lifted off the remaining portion of the protective coating for use. After this, the cutter is used to separate the bandageless strip from the device for subsequent disposal.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: February 19, 1991
    Assignee: University of Pittsburgh
    Inventors: Orrin E. Taulbee, deceased, Gregor M. Taulbee, executor, Frank R. Walters
  • Patent number: D314438
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: February 5, 1991
    Assignee: Sun Room Designs, Inc.
    Inventor: Leo J. Meyers
  • Patent number: D316278
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: April 16, 1991
    Assignee: Michael Cohen
    Inventor: Judith A. Cohen