Patents Represented by Attorney, Agent or Law Firm Thomas E. Schatzel
  • Portable exercise device
    Patent number: 4557480
    Abstract: A portable resistive-type exercise device adapted for both arm and leg exercises. The device includes a housing containing a reel and a length of cord. Within the housing are adjustable friction blocks for applying tension to the cord whereby resistance is exerted against a force withdrawing the cord from the housing. A handle or strap is provided to transmit the force to both the arms and legs. A bracket is supplied which allow for permanent wall mounting or temporary mounting about a door frame.
    Type: Grant
    Filed: October 13, 1983
    Date of Patent: December 10, 1985
    Assignee: In-Door Gym
    Inventor: Edmond R. Dudley
  • Method and apparatus for a fluidized bed heat exchanger
    Patent number: 4554963
    Abstract: A fluidized bed heat exchanger having a plurality of tubes for passing a primary medium, a particulate matter bed, and side and base inlet conduits for passing the primary medium fluid into the heat exchanger with the base inlet conduit adapted to receive the primary medium and fluidizing the particulate matter bed. The primary medium passing through the inlet conduits is controllable to maintain a desired amount of fluidized particulate matter within the tubes when descaling is desired and reduced at the base inlet conduit to eliminate the fluidized particulate matter from flowing within the tubes when descaling is not desired while flow of the primary medium through the tubes is maintained.
    Type: Grant
    Filed: August 19, 1983
    Date of Patent: November 26, 1985
    Assignee: Baker International Corporation
    Inventors: Alton C. Goodwin, Mark T. Junglen, John S. Kent
  • Process for creating wear and corrosion resistant film for magnetic recording media
    Patent number: 4554217
    Abstract: A process for forming a magnetic recording member composed of a substrate, a magnetic film, and a protective layer. The magnetic film is deposited on the substrate by means of DC or RF sputtering and electron beam vacuum deposition in a partial pressure of inert gas. During the final minutes of the sputter process, oxygen or carbon monoxide is injected into the vacuum chamber to form the protective layer.
    Type: Grant
    Filed: September 20, 1984
    Date of Patent: November 19, 1985
    Assignee: Verbatim Corporation
    Inventors: M. Andreas Grimm, George W. Brock
  • Glass shaping machine
    Patent number: 4551948
    Abstract: A glass shaping apparatus having a housing including a work surface integrally formed to the housing top and a variable-speed drive motor mounted within the housing with a drive shaft, including a grinding surface, protruding through a penetration onto the work surface. The motor includes a manual rotatable thumbwheel for adjusting the speed of the rotating grinding surface for the type of glass being shaped. The sloping design of the work surface accelerates the escape of byproducts and provides complete support to the glass. Attachments for high-speed rotary sawing and engraving of glass at 10,000 revolutions per minute are available.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: November 12, 1985
    Inventors: Morris L. Kindig, Cleon V. Kindig, deceased, by Eunice L. Kindig, executrix
  • Remote telemetry unit
    Patent number: 4549044
    Abstract: A remote-telemetry unit for monitoring and reporting to a remote location over a telephone line the condition of an associated piece of equipment at predetermined times, when polled and when the equipment condition dictates, the unit including a direct access arrangement, a switched-frequency Friend Biquad type filter and a detector, the combination for detecting tone signals developed on the line, and a digital-to-analog converter and a controller, in combination with the direct access arrangement for developing on the line tone signals for dialing and for condition reporting.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: October 22, 1985
    Assignee: Cermetek Microelectronics, Inc.
    Inventor: Stephen J. Durham
  • Write protection device
    Patent number: 4549240
    Abstract: A magnetic recording disk cartridge has a write control sensing aperture extending through the cartridge. A shutter is mounted within the cartridge for back and forth rotational movement between aperture blocking and aperture opening positions. The shutter is restrained against accidental movement or drift from these positions. The shutter can be assembled locked in a write protect position and must be reassembled to permit movement between the write protect and write enable positions.
    Type: Grant
    Filed: November 26, 1982
    Date of Patent: October 22, 1985
    Assignee: Verbatim Corporation
    Inventor: Brian A. Hodges
  • Circuit board test fixture
    Patent number: 4544886
    Abstract: A circuit board test fixture has a mount with slots for loosely receiving the marginal edges of a diaphragm. Sealing surfaces curve downwardly from the slots for the diaphragm to form a direct seal against when drawn tightly thereabout. Innermost faces of the mount are spaced outwardly from the marginal edges of a backing plate that supports the diaphragm and moves perpendicular thereto. The mount projects upwards from a vacuum chamber base that is hingedly connected to a connector housing. The mount will maintain a seal with the diaphragm for an operative vacuum chamber when the base is pivoted upwardly to almost an upright position.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: October 1, 1985
    Assignee: M-Rel, Inc.
    Inventors: John D. Murray, Sydney J. Weiss
  • Automatic vent valve
    Patent number: 4541455
    Abstract: An automatic vent valve having a stoppage member within a flow chamber located between an inlet chamber and vent chamber with said stoppage member being biased against a lower seat. The stoppage member moves between said lower seat and an upper seat in response to pressure changes associated with the operation of a positive displacement pump which either overcomes said biasing means or allows said biasing means to function. During the movement of the stoppage member between the upper and lower seats a flow path exists between the inlet chamber and vent chamber such that gases and/or fluid are vented on each stroke of the pump.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: September 17, 1985
    Assignee: Tritec Industries, Inc.
    Inventor: Hugo Hauser
  • Method of manufacturing reinforced flexible disks
    Patent number: 4539220
    Abstract: A method of manufacturing a flexible recording disk with a reinforced aperture region comprising the steps of transferring uncured polymeric material to a printing plate having an elastomeric protrusion thereon, transferring at least a portion of the uncured polymeric material from the elastomeric protrusion to a region on a surface on a flexible magnetic material, curing the polymeric material, and cutting a flexible disk from the flexible magnetic material such that the disk has a central aperture surrounded by the region of the flexible material coated with the cured polymeric material.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: September 3, 1985
    Assignee: Verbatim Corporation
    Inventor: Lawrence G. Martinelli
  • Peristaltic infusion pump and disposable cassette for use therewith
    Patent number: 4537561
    Abstract: An improved peristaltic infusion pump and disposable cassette for use therewith. The cassette includes a hollow conduit arrangement with a section of elastic tubing and adapted to pass intravenous fluids therethrough. The conduit is fixedly mounted in a rigid cassette wherein an intermediate section of the elastic tubing is free to move in a direction perpendicular to the base of the cassette. The infusion pump includes a pump cassette housing designed to properly align and support the cassette and encloses a pump rotor assembly designed to interface with the elastic tube of the cassette so as to generate a peristaltic force in the hollow conduit arrangement.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: August 27, 1985
    Assignee: Medical Technology, Ltd.
    Inventor: Piritheos E. Xanthopoulos
  • In-circuit test apparatus for printed circuit board
    Patent number: 4538104
    Abstract: An in-circuit test apparatus having a vacuum chamber between a top plate and a base plate. The apparatus has an adjustable bearing block assembly located at each quandrant to provide a precision alignment between the top plate and the base plate. A continuous double-hollow tube is located in a uniform groove in the base plate and forms a seal when held captive between the top plate and the base plate. A plurality of spring probe pressure pins are mounted within the chamber. The pins project through drilled individual access ports in the top plate and make electrical contact with a printed circuit board under test when the top plate collapses under a vacuum.
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: August 27, 1985
    Assignee: Test Point 1, Inc.
    Inventors: Bruce S. Douglas, Chester V. Westergart
  • Audio ambience simulator
    Patent number: 4535474
    Abstract: An ambience simulating apparatus having a mixer for combining a plurality of at least two electrical analog signal representations of audio signals into a single analog signal, digitizing circuits for digitizing said single analog signal, a memory for storing the digital representation of said analog signal, and circuitry for selectively collecting, attenuating, and combining portions of the data stored in the memory, whereby a signal can be produced which represents the combination of a plurality of delayed and attenuated audio signals which when reproduced as an audio signal in combination with the reproduction of the audio signals from said plurality of electrical analog signals, creates a fullness of sound referred to as ambience.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: August 13, 1985
    Assignee: Signal Research Laboratory
    Inventors: Jeffrey G. Borish, M. Dale Ewy
  • Variable capacity reusable dual tape dispensing cartridge
    Patent number: 4531690
    Abstract: A variable capacity reusable dual tape dispensing cartridge for use with tape printing machines having guide rings to support the tape within the cartridge, select apertures in the cartridge to allow the cartridge to store large quantities of tape, use of a roller bearing to prevent tape backflow into the cartridge and reusable fastener means to allow the cartridge to be opened and resealed so as to replace tape or repair the internal components of the cartridge.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: July 30, 1985
    Inventor: Robert J. Condy
  • Insulating pipe support apparatus
    Patent number: 4530478
    Abstract: An insulating pipe support apparatus including a pipe support and a means for distributing load on the pipe support. The pipe support includes a frame having a plurality of insulating inserts on its interior and at least one insert being a load-bearing insert. The load-distributing means includes a base generally parallel to the longitudinal axis of the support and straps surrounding each load-bearing insert on the exterior of the frame and the straps being connected to the base, so that the load borne by the load-bearing insert is transferred to the base via the straps and distributed throughout the base.
    Type: Grant
    Filed: March 28, 1984
    Date of Patent: July 23, 1985
    Assignee: Pipe Shields, Inc.
    Inventor: William F. McClellan
  • Method for refinishing rigid data storage discs
    Patent number: 4528063
    Abstract: A method for refinishing rigid data storage discs for recoating including the steps of removing a magnetically alterable coating and its sub-interfacing material from rigid data storage discs to expose disc substrates, inspecting the substrate for surface discontinuities, measuring the thickness and flatness of the substrates, resurfacing the surfaces of the substrates to remove surface unevenness and surface discontinuities, polishing the surfaces of the substrates to produce a visually mar-free flat substrates, and rinsing and drying the substrate before recoating.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: July 9, 1985
    Assignee: Winchester Disc, Inc.
    Inventors: John E. Lawrence, Lloyd L. Barnes, Jr.
  • Multiple channel data communication system
    Patent number: 4521891
    Abstract: A multiple channel communications system and method for communication among multiple channels using a channel selectable MODEM. The system is comprised of a coaxial cable, a variety of interface units with attached communicating devices and a channel bridge. The interface units include a MODEM and a microprocessor based support element adapted for the attached communicating device. The channel bridge includes two or more MODEMs and a microprocessor based computer for receiving data from one MODEM and transmitting the data on another MODEM.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: June 4, 1985
    Assignee: Sytek, Incorporated
    Inventors: Kenneth J. Biba, Jose J. Picazo, Jr.
  • Cantilever paddle for use with wafer boats
    Patent number: 4516897
    Abstract: A cantilever wafer paddle system for use in the manufacture of semiconductor devices so the system having two support members positioned above and attached to a suspension member such that the suspension member is capable of supporting and suspending a series of wafer boats within a diffusion tube without allowing any portion of the paddle, boats or wafers contained within the boats to contact the internal walls of the diffusion tube.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: May 14, 1985
    Assignee: Berkeley Glasslab
    Inventors: Wendall L. Snider, Edward A. Wagner
  • Magnetic head cleaning diskette
    Patent number: 4516176
    Abstract: A disk having a thin flexible platter with a mildly abrasive coating on at least one side thereof for contacting and cleaning a magnetic head. The coating includes magnetite (Fe.sub.3 O.sub.4) having an internal crystalline form in the shape of octahedral crystals, conductive carbon black, a dispersing agent, a binder system, a cross-linker, and a lubricant. Since the magnetite is highly magnetic, data can be magnetically recorded on the coating for programming the magnetic head to be cycled across the coating to ensure a thorough cleaning of the head.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: May 7, 1985
    Assignee: Verbatim Corporation
    Inventor: Jeffrey B. Street
  • Chrysanthemum
    Patent number: PP5477
    Abstract: A vigorous chrysanthemum plant bearing white blossoms having a daisy-anemone form.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: May 28, 1985
    Assignee: Chrysanthemum Breeders Assoc. N.V.
    Inventor: Johannes W. Hubertus van Veen
  • Toy aircraft
    Patent number: D280113
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: August 13, 1985
    Assignee: Tolsir Products
    Inventor: Hendrick J. G. Lorist