Patents Represented by Law Firm Kleinberg, Morganstern, Scholnick & Mann
  • Patent number: 4176289
    Abstract: An improved driving circuit is provided especially for use in an integrated circuit semiconductor memory which operates on low power supply voltage, such as 5 volts, the drive circuit employing field effect transistors coupled with bootstrap capacitor devices and responsive to an input pulse for supplying, at its output terminal, a pulse having a peak voltage potential substantially equal to the power supply voltage value despite the inherent threshold voltage drops of the field effect transistors utilized. In the drive circuit, in response to an input pulse, the reference voltage for charged capacitor devices is switched between a first level and a raised second, higher level to place the capacitor devices in series with each other and the raised reference voltage to overdrive an output switch device so as to connect substantially its full power supply voltage to its output terminal during a corresponding output pulse.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: November 27, 1979
    Assignee: Electronic Memories & Magnetics Corporation
    Inventors: George S. Leach, Timothy R. O'Connell
  • Patent number: 4156117
    Abstract: A stereo speaker system removably mountable on the back of a seat includes two speaker assembly enclosures pivotally mounted on a spacer bar to maintain the speakers at a desired separation and orientation and a strap for securing the enclosures and spacer bar to the back of the seat. Each enclosure includes a chamber substantially occupied by a speaker assembly and a duct portion for directing the sound.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: May 22, 1979
    Assignee: Shaymar, Inc.
    Inventor: William W. Phillips
  • Patent number: 4140384
    Abstract: In a film conveyor for use in developing films comprising a first and a second belt racks consisting of a plurality of narrow belts and pressure rollers, and a roller rack consisting of a plurality of squeegee rollers and spray tubes arranged between said two belt racks, the pressure rollers of the two belt racks are so positioned as to press the belts at the mid points of two vertically adjacent squeegee rollers, and the squeegee rollers of the roller rack are arranged in two vertical rows between which an adequate number of said spray tubes are horizontally disposed so that developing solution may be sprayed out directly toward between said two rows of squeegee rollers. Further, the squeegee rollers of the roller rack are driven in synchronism with the moving speed of the belts so as to effect smooth conveyance of the film held between the belts and the squeegee rollers.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: February 20, 1979
    Assignee: Dainippon Screen Seizo Kabushiki Kaisha
    Inventors: Tadashi Shintani, Nobuhiro Takita, Takashi Ohmori
  • Patent number: 4130845
    Abstract: An axially symmetrical, self-pressured air system has a substantially sealed enclosure for high speed rotating discs. Air admission to the enclosure is located such that pressures throughout the enclosure minimize the entrance of contaminants. A tangentially positioned chamber can be symmetrically arranged about a tangent in the cylindrical wall of the enclosure. Filters adjacent both the axial receiving means and the tangential chamber rid the enclosure of disc damaging impurities.
    Type: Grant
    Filed: July 8, 1977
    Date of Patent: December 19, 1978
    Assignee: Microdata Corporation
    Inventor: Clarence O. Kulma
  • Patent number: 4127188
    Abstract: A longitudinal sheet of paperboard has longitudinally aligned spacing elements for holding and containing substantially flat, frangible items resiliently spaced from each other. The sheet is adapted for wrapping the edges of the flat, frangible items for packaging and shipping. Rigid supports elevate the package above the floor for manipulation, as by fork lifts. A plurality of the sheets can be overlapped to form an adjustable, enlarged shipping container having a unique size adjusted to the size of the items packaged. The so-packaged items can be cinched tightly to form a tight, resilient shipping ensemble.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: November 28, 1978
    Assignee: Anthony's Manufacturing Company, Inc.
    Inventor: James J. Heaney
  • Patent number: 4127215
    Abstract: An improved access port cover latching assembly is provided with an interlock that normally requires the presence of a component within the access port. A first pin encounters the component and, when displaced, releases a second pin to slide, thereby allowing a latching assembly to seat fully, thereby securing the cover. An independent signalling device may be provided to indicate the absence of the component in the event that the interlock is intentionally defeated to enable latching of the cover.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: November 28, 1978
    Assignee: Kaiser Aerospace & Electronics Corporation
    Inventor: Donald L. Morrison
  • Patent number: 4127765
    Abstract: A system is described which permits the electrically heated door of a refrigerated display cabinet to be operated selectively at a plurality of power settings, providing respectively higher and lower levels of electrical heating. A switching means is used to alter the electrical interconnection of the door window heating elements with the door frame heating elements from a series connection to a parallel connection. In one embodiment, an automatic electrical controller actuates the switch in response to changes in the ambient humidity and temperature.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: November 28, 1978
    Assignee: Anthony's Manufacturing Company, Inc.
    Inventor: James J. Heaney
  • Patent number: 4109168
    Abstract: A current-to-frequency converter in which a succession of small charge feedback pulses is selectively generated to null the input current. The feedback pulses are generated by applying voltage pulses of precisely controlled magnitude to a precision capacitor to produce pulses of precisely-determined charge content. These pulses are then applied to a charge-dividing circuit including a matched pair of bipolar transistors. The charge dividing circuit bypasses the bulk of the charge in each pulse, while applying only a minute fraction of each pulse as the feedback current. The charge division ratio is maintained constant by the circuit in spite of temperature fluctuations.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: August 22, 1978
    Assignee: Analog Technology Corporation
    Inventor: David Lee Raymond
  • Patent number: 4106744
    Abstract: A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mandrel and a layer of metal is deposited over the mandrel and insulators to form a composite unitary structure, including the electrodes. The deposited metal overlying the insulators is then removed, electrically isolating the electrodes.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: August 15, 1978
    Assignee: Analog Technology Corporation
    Inventors: James L. Lawrence, Jr., Robert A. Holzl, Frederick P. Pickett
  • Patent number: 4106094
    Abstract: Estimators of a vehicle's position and attitude with respect to the earth are generated continuously by integrating the outputs of translational and rotational accelerometers that are attached to the vehicle. These estimators are corrected by comparing them to corresponding reference dynamic variables measured independently by instruments onboard the vehicle. The estimators are modified by slowly responding servo loops to equal their corresponding reference variables. Differences between certain of the estimators and their corresponding reference dynamic variables are used in generating feedback signals for correcting other of the estimators. By combining various of the estimators, system outputs representing sideslip angle and change in cross-track velocity can be generated.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: August 8, 1978
    Assignee: Turpin Systems Company
    Inventor: Robert Perry Land
  • Patent number: 4093847
    Abstract: An electric fluid heater of the type in which the fluid is heated by passing electricity through it includes an electronic temperature control system responsive to a temperature sensor in the fluid for controlling the flow of electric current to the heating electrodes. The electronic controller includes means to limit the maximum current passed by the heating electrodes. Heat generated is controlled to demand by varying the duty cycle of back-to-back SCR's in series with one of the electrodes.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: June 6, 1978
    Assignee: Datametrics Corporation
    Inventors: John A. Walker, Dimitri S. Dimitri
  • Patent number: 4092733
    Abstract: An electrically alterable, non-volatile interconnect selectively connects and disconnects microcircuit elements formed on a wafer. The interconnect is formed on the same wafer as the microcircuit elements during the circuit fabrication process to permit electrically controlled reconfiguration of the microcircuit elements on the wafer. This enables wafer scale integration by permitting defective circuit elements to be bypassed and operable, redundant circuits to be substituted for them. MNOS memory transistors provide non-volatile storage of the chosen conductivity state of each interconnect, in the form of impedance differences. In a preferred embodiment, the impedance differences set a flip-flop whose output enables a gate. The gate may include amplification of the signals gated. In one phase of the cycle of operation, the chosen conductivity state of the interconnect may be read into the MNOS memory through the flip-flop.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: May 30, 1978
    Assignee: McDonnell Douglas Corporation
    Inventors: Leland I. Coontz, Morton H. Fox
  • Patent number: 4090229
    Abstract: In a capacitive key for use in a keyboard, an operator depresses a plunger which alters the separation between the plates of a capacitor, thereby altering its capacitance. It is desirable to provide plunger overtravel which permits further depression of the plunger after the capacitor has been altered. In the present invention a portion of the movable capacitor plate is formed into a spring which elastically deforms after the capacitor has been altered, to permit overtravel of the plunger.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: May 16, 1978
    Assignee: Becton, Dickinson Electronics Company
    Inventors: J. Arthur Cencel, Andrew Voge, Barry W. Mullins
  • Patent number: 4087139
    Abstract: A guide to assist in inserting a fastener into a first hole in a first surface which is accessible through a second hole in a wall facing the first surface, comprises a plastic tube press-fitted through the second hole, extending to and surrounding the first hole. A thin plate overlying the wall contains a hole concentric with the second hole but whose diameter is smaller than the fastener, whereby the fastener is held captive within the tube.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: May 2, 1978
    Assignee: Anthony's Manufacturing Company, Inc.
    Inventor: James J. Heaney
  • Patent number: 4082049
    Abstract: A sailing frame is disclosed which, in the preferred embodiment, is adapted to mount on an inflatable boat. The frame can be disassembled and/or folded into a small package for storage, compatible with the deflated boat. The frame assembles into a rigid configuration which mounts on the gunwales of the inflatable boat. Mounting members for a collapsible mast and sails are provided. The frame can include a mounting for a rudder. The sailing frame includes a pair of vertically extending dagger or bilge boards which, in the water, provide fore and aft stability to the boat and resist lateral forces. In alternative embodiments, the frame can be mounted on any other small boat or dinghy, and, when not in use, can be disassembled and stowed.
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: April 4, 1978
    Inventor: Henry A. Nicol
  • Patent number: 4081158
    Abstract: The aerodynamic surface of the kite consists of a single sheet of stiff material arched about a longitudinal axis, being more highly arched at the front end than at the rear and having an aperture located predominantly on the rearward half. In a preferred embodiment, the kite is die cut from a sheet of foamed plastic, and laterally-extending tension members are used to hold the sheet in the arched shape. The flying string is attached directly to the kite for flying it with the concave side upward. Other embodiments can be flown with the concave side down if a bridle is used.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: March 28, 1978
    Assignee: Synestructics, Inc.
    Inventor: Peter J. Pearce
  • Patent number: 4080756
    Abstract: A channel-like structural member for use as a refrigerator door frame, having a generally U-shaped cross section including a first flange, a second flange, and an intermediate control portion wherein the improvement comprises a thermally insulative thermal barrier interposed between said central portion and said second flange, and holding those portions in rigid spaced-apart relationship.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: March 28, 1978
    Assignee: Anthony's Manufacturing Company, Inc.
    Inventor: James J. Heaney
  • Patent number: 4079254
    Abstract: A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mandrel and a layer of metal is deposited over the mandrel and insulators to form a composite unitary structure, including the electrodes. The deposited metal overlying the insulators is then removed, electrically isolating the electrodes.
    Type: Grant
    Filed: February 14, 1977
    Date of Patent: March 14, 1978
    Assignee: Analog Technology Corporation
    Inventors: James L. Lawrence, Jr., Frederick P. Pickett, Robert A. Holzl
  • Patent number: 4071698
    Abstract: A system is disclosed for marketing merchandise or services by telephone using brief prerecorded audio demonstrations stored in an audio program repeater and connected to a customer's telephone line by a switching system under control of a data processor in response to a code entered by a customer service operator via the switching system or a code entered directly by the customer through his push-button telephone. In the latter case the data processor is in direct communication with the customer who uses the telephone push buttons to respond to prerecorded messages transmitted from the audio program repeater under control of the data processor. Otherwise the customer communicates with a customer service operator through the switching system and the customer service operator in turn selects the demonstration through the data processor.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: January 31, 1978
    Assignee: Franklin V. Barger, Jr.
    Inventors: Franklin V. Barger, Jr., Richard M. Knox, Jefery R. Roberts
  • Patent number: 4068197
    Abstract: An apparatus for stabilizing a laser beam to be used for exposure in an image-reproducing apparatus wherein said beam is suitably controlled by image signals obtained from the scanning of the original beam as modulated. A laser beam, after being suitably modulated by an ultrasonic light modulator, is branched out by a half mirror into two beams, one of which is to be used for exposing a photosensitive material and the other is used as a negative feedback signal. This feedback signal is then added to an image signal so that a linearity between exposing beam and image signals are greatly improved. Further, by improving the linearity of exposing beam, the stability of the exposing beam is simultaneously improved.
    Type: Grant
    Filed: June 23, 1976
    Date of Patent: January 10, 1978
    Assignees: Dainippon Screen Seizo Kabushiki-Kaisha, Ushio Electric Inc.
    Inventors: Taro Yamazaki, Kazuhiko Ohnishi, Kiyoshi Maeda