Patents by Inventor Daniel Cooper

Daniel Cooper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4599219
    Abstract: Coagulation is detected in a fluid sample contained in either a gas flow cartridge or a plunger sensor cartridge, either one of which may be inserted in an actuator mechanism which has the capability of acting on either type of cartridge. Coagulation is detected in the gas flow cartridge by optically sensing the accumulation of coagulating liquid in a foam member at the top of the reaction chamber. In the plunger sensor cartridge, a plunger assembly is raised and released to descend through the sample of liquid in the bottom of the reaction chamber. The plunger assembly descends more slowly upon an increase in the viscosity of the fluid sample due to coagulation. Both cartridges include a lower reagent chamber, an upper reaction chamber, and means initially sealing and thereafter communicating the contents from the reagent chamber to the reaction chamber.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: July 8, 1986
    Assignee: Hemotec, Inc.
    Inventors: Daniel Cooper, Jacqueline J. Jackson
  • Patent number: 4533519
    Abstract: A gas flow cartridge in which to conduct a coagulation-related test uses an elongated pin member movably positioned within a communication opening which separates a reagent chamber from a reaction chamber. A first portion of the pin member has an operative configuration for sealing the communication opening when the first portion is positioned in the communication opening. A second longitudinally displaced portion of the pin member opens the communication opening to further communication therethrough upon longitudinal movement of the pin member. At the commencement of an analytical test, a plug member is moved upwardly to contact the pin member and move the first portion out of the communication opening and the second portion into the communication opening. The upward movement of the lower plug member forces the contents of the reagent chamber through the opened communication opening and into the reaction chamber.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: August 6, 1985
    Assignee: HemoTec, Inc.
    Inventors: Robert F. Baugh, Walter J. Braun, Daniel Cooper
  • Patent number: 4214590
    Abstract: A method and apparatus for processing and displaying ECG waveforms and the like is comprised of a playback circuit to demodulate FM and digital signals for transcription on an endless paper loop in a series of straight lines or traces. A paper loop drive unit is capable of handling and advancing the endless loop continuously past one or more scribing pens which are offset in succession to produce a predetermined number of traces in parallel rows across the length of the loop with time segment markings closely correlated with the information recorded.
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: July 29, 1980
    Assignee: International Medical Corporation
    Inventors: Charles M. Patnoi, Daniel Cooper, Robert D. Zellers
  • Patent number: 3972459
    Abstract: A tape dispenser comprising a front part including a cutting edge and two side parts including core members, respectively, the former being pivotally connected to the front part by living hinges. The core members include releasable snap locking parts for holding the core members together in a substantially parallel position of the two side parts.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: August 3, 1976
    Inventor: Daniel A. Cooper
  • Patent number: 3954098
    Abstract: A scan converter storage surface is divided into image spaces corresponding to different points in the heart cycle. Ultrasound echoes from heart structures are plotted in the image spaces by means of special x, y sweeps which are offset to the image spaces by timing circuitry. Separate delay and spacing counters allow the first image to be stored at one interval after detection of the ECG R-wave and successive images to be stored at a another uniform interval. An ECG trace is stored in the first image space with cursors indicating the selected image timing. The scan converter is read out to a TV display. During image build-up, the read and write modes alternate. If desired, the TV sweeps to the scan converter may be attenuated and offset to display a single stored image. Images displayed in sequence provide animation. A self test circuit substitutes a fake ECG and writes bars in the scan converter image spaces using TV sweeps for the scan sweeps.
    Type: Grant
    Filed: January 31, 1975
    Date of Patent: May 4, 1976
    Inventors: Donald E. Dick, Daniel Cooper, Ronald E. Hileman