Patents Represented by Law Firm Prangley, Dithmar, Vogel, Sandler & Stotland
  • Patent number: 3961039
    Abstract: A stain for unfixed, wet urinary sediment and cellular elements of serous effusions comprising in combination a preferential nucleus-seeking dye and a preferential cytoplasm-seeking dye providing a readily detectable difference between nuclear cellular material and cytoplasmic cellular material while at the same time prominently staining urinary casts, other mucoid material and bacterial elements.
    Type: Grant
    Filed: April 24, 1975
    Date of Patent: June 1, 1976
    Inventor: Richard Sternheimer
  • Patent number: 3961152
    Abstract: A counter-top microwave oven comprises an upstanding box-like metal wall structure defining a heating cavity, a microwave generator including a voltage quadrupler power supply, and transmission means including a probe antenna for radiating the microwaves into the heating cavity, the cavity being so dimensioned and the antenna being so positioned as to excite in said cavity preferred electromagnetic field modes for establishing preferred field patterns to achieve uniform heating of a variety of foods. The power supply includes capacitive and inductive means, having values designed to optimize the power factor, and switching means for selectively switching between low and high power modes. The heating cavity is dimensioned to produce two complementary modes of which establish an undistorted field pattern providing uniform heating over a distance greater than a wavelength of the source microwave energy, tuning means being provided to tune undesired modes off resonance.
    Type: Grant
    Filed: November 21, 1974
    Date of Patent: June 1, 1976
    Assignee: General Electric Company
    Inventor: James E. Staats
  • Patent number: 3959773
    Abstract: A device which stores information relative to a plurality of accounts and calculates new balances for individual selected accounts upon receipt of information pertaining to a financial transaction to be charged or credited to the selected account and transmits the new calculated information to the point of the transaction, apparatus at the point of transaction responsive to the transmitted information for printing on preassembled first and second forms a visible display of the amount of the transaction and a temporarily concealed display of the amount of the transaction and the selected account balances before and after the transaction.
    Type: Grant
    Filed: July 13, 1970
    Date of Patent: May 25, 1976
    Inventor: Ethon Hyman
  • Patent number: 3949449
    Abstract: An integral one-piece cable tie including an elongated flexible strap having a row of teeth thereon, a frame integral with one end of the strap and having an abutment wall and an end wall and an entry surface and an exit surface and a strap-receiving opening therethrough, a ledge on the end wall extending toward the abutment wall, and a pawl pivotally mounted on and integral with the ledge within the opening end having a set of teeth thereon shaped complementary to the row of teeth.
    Type: Grant
    Filed: April 9, 1969
    Date of Patent: April 13, 1976
    Assignee: Panduit Corporation
    Inventors: Jack E. Caveney, Roy A. Moody
  • Patent number: 3946579
    Abstract: A one-piece seamless unidirectional rotary knitted panty having wales and courses therein comprising a seamless tubular body integrally knitted, the body having a waist opening therein intermediate the ends thereof and a crotch portion opposite the waist opening, the ends of the body each having a leg band integrally knitted thereon and turned upon itself and integrally joined with itself to provide a double thickness, the panty comprising a single continuous seamless knitted tube forming the body and the leg bands with all the knitted wales of the leg bands extending through the leg bands into the body and with the knitted courses extending circumferentially of the tube; in another form of the invention an integrally knitted leg is disposed between the body and each leg band; in yet another form of the invention, alternate courses throughout the panty are knitted of elastomeric yarn so as to impart an elastomeric character to the panty throughout the area thereof, thus providing a foundation garment; a novel
    Type: Grant
    Filed: December 10, 1973
    Date of Patent: March 30, 1976
    Assignee: Bear Brand Hosiery Co.
    Inventor: Richard H. Heinig
  • Patent number: 3946961
    Abstract: An automatic towel winder includes a frame supporting a plurality of winding units and a conveyor assembly for feeding a plurality of towels respectively to the winding units along a plurality of parallel side-by-side lanes, each of the winding units occupying three adjacent lanes and including a hollow winding mandrel having side perforations therein for winding the towel into a roll thereon, a constant-torque electric motor to drive the mandrel, suction means coupled to the hollow mandrel for urging the leading end of the fed towel against the mandrel to initiate winding thereon, an ejector for removing the wound towel roll from the mandrel and a receptacle for catching the ejected roll, the winding units being staggered on the frame to occupy a space only slightly wider than the combined widths of the fed towels; electric control circuitry for the winder and alternative embodiments of mandrel drive means and roll ejector are also disclosed.
    Type: Grant
    Filed: August 15, 1974
    Date of Patent: March 30, 1976
    Assignee: Steiner American Corporation
    Inventor: Erwin B. Bahnsen
  • Patent number: 3944472
    Abstract: A device for positioning a lid for a coke oven charging port in the charging port. An arm is pivotally mounted on a coal hopper and carries a pusher member shiftably mounted on the bottom thereof. A motor also mounted on the coal hopper is connected to the arm and moves the arm and the pusher member between a storage position wherein the arm and the pusher member are spaced away from the coke oven and a use position wherein the pusher member is on the coke oven and is moved toward the associated charging port to push the lid toward and into the charging port.
    Type: Grant
    Filed: April 15, 1974
    Date of Patent: March 16, 1976
    Assignee: Interlake, Inc.
    Inventor: Earl F. Lowe
  • Patent number: 3944113
    Abstract: A floating roof for floating upon and covering liquids stored in storage tanks, the roof including a deck generally conforming to the shape of the associated storage tank and having transverse dimensions and a thickness such that the deck is flexible, a pontoon around the outer periphery of the deck to impart buoyancy thereto, and a hermetically sealed hollow floatation ring mounted on the deck intermediate the center and the outer edge thereof, the weight of the floatation ring being asymmetrically disposed so as to place an area of the deck at a lower level than all other areas to provide a sump, and a drain communicating with the sump to drain liquid from the upper surface of the deck.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: March 16, 1976
    Assignee: General American Transportation Corporation
    Inventor: Milton W. Heisterberg
  • Patent number: 3944460
    Abstract: A manually operable combination strapping tool for applying plastic strapping around an object includes a strap-tensioning and gripping mechanism for holding the strap in a tensioned loop around the object with the supply portion of the strap overlapping the leading end thereof, and a heat sealing mechanism which comprises a cam shaft adapted for camming engagement with a movable pressure block and with a rocker arm which is in turn releasably coupled to a movable heater. As the cam shaft is rotated, the rocker arm moves the heater between the overlapping strap portions and the pressure block is moved to press together the heating element and strap portions for melting thereof. Further rotation of the cam shaft disengages it from the pressure block and decouples the rocker arm from the heater to permit retraction of the pressure block and the heater by separate bias means.
    Type: Grant
    Filed: December 14, 1972
    Date of Patent: March 16, 1976
    Assignee: Interlake, Inc.
    Inventor: George A. Karr
  • Patent number: 3941207
    Abstract: A loudspeaker assembly comprising a loudspeaker including a front mounting flange having front surfaces, and an enclosure for the loudspeaker including a front wall and a rear wall and a top wall and a bottom wall and opposed side walls all having at least two layers of corrugated material, the inner layers of the walls being formed from a single inner member including a front panel having opposed top and bottom panels and opposed side panels hingedly connected thereto and rear panel sections respectively hingedly connected to the opposed panels, two of the rear panel sections cooperating to provide an inner rear panel and the other two of the rear panel sections cooperating to provide an outer rear panel; in one form, the loudspeaker is fixed to the inner member by having slots in opposed panels receiving the mounting flange therethrough with an adhesive between the front loudspeaker surfaces and the front panel; in the other form, the opposed top and bottom panels and the opposed side panels at the juncture
    Type: Grant
    Filed: August 26, 1974
    Date of Patent: March 2, 1976
    Assignee: Acoustic Fiber Sound Systems, Inc.
    Inventor: Robert E. Croup
  • Patent number: 3938546
    Abstract: A faucet includes a valve cartridge having a housing with an inlet and outlet thereto. A valve plate is movable in the housing with respect to a fixed valve seat to control the quantity of fluid delivered from the inlet to the outlet. A bearing plate is positioned against the valve plate, a handle being provided on a handle bearing support to control the valve plate. A gasket between the valve seat and the housing is preloaded to provide a fluid-tight seal between the valve plate and the valve seat and a predetermined amount of friction therebetween. In manufacturing such a valve cartridge wherein the housing and the handle bearing support are formed of plastic, the parts are assembled and an ultrasonic welding mechanism is operated fixedly to secure the handle bearing support to the housing.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: February 17, 1976
    Assignee: Elkay Manufacturing Company
    Inventor: Gerald J. Farrell
  • Patent number: 3938106
    Abstract: A data system for gathering and processing data from a production line includes a central processing unit connected to a plurality of addressable data terminals respectively disposed at the work stations of the production line, each terminal having stored therein coded signature data indicating the identification of the work station and the operator. Each work unit being processed on the production line has associated therewith a punched data card containing coded signature data identifying the work unit for insertion in a card reader in the data terminal at each work station to enable a data transmitter therein. When the data terminal is addressed by the control processing unit, the transmitter is actuated for transmitting the work unit, work station and operator signature data to the central processing unit for use through appropriate data retrieval means.
    Type: Grant
    Filed: December 4, 1974
    Date of Patent: February 10, 1976
    Inventors: Bernard E. Becker, Virgil D. Baker, III, Theodore S. Britton
  • Patent number: 3936766
    Abstract: A magnetron adapted for operation with an ungrounded power supply, has mounted thereon and tightly coupled thereto an external cavity resonator having coaxial first and second openings in opposite walls thereof. The magnetron has coaxial output connection members including a hollow outer connection member communicating with the interior of the cavity resonator through the first opening, and an internal connection member extending entirely through and beyond the resonator via the first and second openings. The cavity resonator is galvanically insulated from the magnetron by teflon insulation which provides capacitive coupling therebetween. The cavity is coupled to a load which may be grounded. The cavity resonator is formed from a closed section of wave guide, two embodiments of which are disclosed.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: February 3, 1976
    Assignee: General Electric Company
    Inventor: James E. Staats
  • Patent number: 3936627
    Abstract: A self-cleaning microwave oven comprises a heating cavity, source means including a disc antenna and a rotating mode stirrer for exciting in the heating cavity two predetermined electromagnetic field modes, a first metal rack horizontally disposed near the bottom of the cavity and having spaced-apart rods extending parallel to the direction of the electric field of the two modes and terminating those modes, and a second metal rack horizontally disposable in a plurality of different positions above the first rack and having spaced-apart rods extending perpendicular to the direction of the electric field of the two modes and having no effect thereon.
    Type: Grant
    Filed: January 17, 1974
    Date of Patent: February 3, 1976
    Assignee: General Electric Company
    Inventor: Louis H. Fitzmayer
  • Patent number: 3934926
    Abstract: A vehicle has a bed divided into a plurality of bays by means of dividers. Article carriers are constructed to be positioned in the bays by means of a loader-unloader such as a lift truck. Each article carrier is provided with at least one locking mechanism which automatically unlocks when engaged by a loader-unloader, and automatically locks into the bed of a truck when released by the loader-unloader after being positioned in a chosen bay.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: January 27, 1976
    Inventor: Richard C. Bennett
  • Patent number: 3933254
    Abstract: A machine for feeding into a stack and removing from a stack baking pans and the like wherein there is provided a transfer conveyor, a pan carrier, a pan dropping mechanism for sequentially separating baking pans from the transfer conveyor and depositing the baking pans on the pan carrier, a pan lifting mechanism for sequentially lifting baking pans from the pan carrier and engaging the baking pans with the transfer conveyor. The carrier drive mechanism disclosed drives the pan carrier upwardly toward the transfer conveyor during unstacking and downwardly away from the transfer conveyor during stacking. A control mechanism is disclosed for selectively operating the transfer conveyor in a pan unstacking mode and in a pan pass-through mode and in a pan stacking mode.A complete system for feeding baking pans and the like upon demand to a process station is shown including a process station, a baking pan handling station, sensing mechanism and control mechanism.
    Type: Grant
    Filed: March 8, 1973
    Date of Patent: January 20, 1976
    Assignee: Velten & Pulver, Inc.
    Inventors: Willis C. Pulver, Henry A. Heide
  • Patent number: 3932824
    Abstract: In one aspect, the circuit has a first impedance element which preferably is in the form of a tapped inductor with a plurality of taps thereon, and a second impedance element which preferably is in the form of a capacitor. One terminal of the capacitor is connected to a terminal of the inductor, the other terminal of the capacitor is movably connected to a selected one of the taps. The circuit is tuned to a resonant frequency determined by the value of the capacitor and the value of inductance associated with the selected tap. The taps are located on the inductor to cause each resonant frequency to be a substantially fixed percentage greater than the next lower one of the resonant frequencies. In one embodiment, a connector plug is provided, having a first portion with a terminal connected to the capacitor; a second portion with terminals connected to the taps on the inductor; and a third portion matable with the second and third portions.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: January 13, 1976
    Inventor: Keith H. Wycoff
  • Patent number: RE28739
    Abstract: A tone control circuit is in a receiver adapted to respond to a sequence of control tones alternately selected from a first group of tones in a first band of frequencies and a second group of tones in a second band of frequencies, wherein the two bands are separated by an intermediate band and wherein the time duration of the gap between adjacent tones in the sequence of tones is substantially zero, the tone control circuit including a filter device which is tuned to the frequencies of the control tones as they are received, a plurality of AND circuits corresponding in number to the control tones and respectively having one input coupled to the filter device and another input coupled to the preceding AND circuit so that each AND circuit is operative to produce an output only in the presence of a tone being passed by the filter and an output signal from the preceding AND circuit, the filter device being tuneable either manually or electronically via the outlet signals from the AND circuits.
    Type: Grant
    Filed: June 11, 1973
    Date of Patent: March 16, 1976
    Inventor: Keith H. Wycoff