Patents by Inventor David C. Saar

David C. Saar 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: 5420894
    Abstract: A circuit which synchronizes the phase of a data stream from a transmitting system, to the phase of the clock signal of the receiving system. Two frames of data from the transmitting data stream are stored in a memory which is continuously updated as the data for each time slot is stored in a different word of memory. The storage of the incoming stream data is controlled by the clock signal from the transmitting system. The data stored in the memory is then read out of that memory under control of the clock signal from the receiving system. As each word is read out, it is reinserted into the bit stream that is transmitted to the receiving system. An address control circuit ensures that write addresses have priority over read addresses. Similarly, a read/write control circuit ensures that write signals have priority over read signals. The read signals are arranged such that two read signals are available for each time slot.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: May 30, 1995
    Assignee: AG Communication Systems Corporation
    Inventors: James W. Boslough, David C. Saar, George K. Tarleton
  • Patent number: 4510066
    Abstract: A process is described for retarding or preventing the setting of a miscible and pumpable crutcher slurry intended to be spray dried to base beads for subsequent conversion to a built synthetic organic nonionic detergent composition. The slurry, which contains described proportions of water softening zeolite, water soluble salt(s), including sodium bicarbonate and sodium carbonate, and a swelling bentonite, sometimes sets up in the crutcher in which it is being prepared. Often such solidification is spontaneous after the bentonite has been added to the crutcher, and sometimes occurs only minutes after such addition. When 0.5 to 5% of magnesium sulfate is incorporated in the crutcher mix such undesirable setting of the mix is delayed or prevented entirely, and crutching times of at least one hour (and sometimes appreciably longer) are attained, after which the crutcher slurry is still miscible, and is pumpable to a spray drying tower.
    Type: Grant
    Filed: July 6, 1983
    Date of Patent: April 9, 1985
    Assignee: Colgate-Palmolive Company
    Inventor: David C. Saar