Patents by Inventor Per A. Edstrom

Per A. Edstrom 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).

  • Publication number: 20250058268
    Abstract: The present invention relates to a device for absorbing water from a gas and to a computer implemented method for improving operation of such a device. The method comprises i) receiving, in processing circuitry, an first input signal comprising a parameter indicative of a pH value of output water, ii) comparing, using the processing circuitry, the parameter to a first criterion indicative of an allowed pH value or interval of the parameter, and iii) if the first criterion is not fulfilled, determining, using the processing circuitry, that a pH correction of the liquid desiccant is needed based on at least the comparison of step ii).
    Type: Application
    Filed: December 19, 2022
    Publication date: February 20, 2025
    Inventors: Fredrik EDSTRÖM, Per DAHLBÄCK, Johanna UNOSSON
  • Patent number: 4815110
    Abstract: The invention relates to a method of synchronizing clocks contained in a local network of bus type, such as Ethernet and a system of synchronizing clocks. In local networks of this kind a number of nodes are connected to a common data channel. The object of the invention is to obtain a method and a system of synchronizing the clocks which is more accurate than previous methods and systems, in which the synchronizing information is transmitted as common data packages in which the receiver of the synchronizing information does not know the instant of the data package generation. According to the invention a synchronizing message is transmitted from one node which has been chosen to be the master to all nodes, the master node inclusive. When receiving a synchronizing message the nodes read the clock state. Then the master node transmits a clock time message containing the master node clock state when it received the synchronizing message.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: March 21, 1989
    Assignee: U.S. Philips Corporation
    Inventors: Bengt H. Benson, Per A. Edstrom