Patents by Inventor Michael CARLSSON

Michael CARLSSON 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: 11638361
    Abstract: A locking arrangement can be used for securing electric module cards between two side walls of a housing. The locking arrangement includes two side members for fixed arrangement with the respective side walls. An opening defined between the side members accommodates electric contacts of the electric module cards. A first and a second transverse member form a frame with the side members in order to lock the electric module cards within the housing. A locking mechanism is detachably connects at least one of the transverse members to at least one of the side members by means of a snap-fit.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: April 25, 2023
    Assignee: Hitachi Energy Switzerland AG
    Inventors: Fredrik Alfredsson, Jimmy Kjellsson, Daniel Wahlberg, Michael Carlsson
  • Patent number: 11598619
    Abstract: The invention relates to a method of delaying a mechanism in a firearm and a delay unit for a projectile comprising i) a first and a second pressure chamber (3a, 3b) arranged to receive combustion gases in a firearm via at least one inlet (1a, 1b) arranged to each of said first and second pressure chambers (3a, 3b) following firing of a projectile ii) at least one outlet for transferring the combustion gases (4a, 4b), arranged to each of said first and second pressure chambers (3a, 3b), to a piston chamber in which a displaceable piston (6) is arranged dividing the piston chamber into a compartment (5b) having a volume V1 upstream the piston (6) and a compartment (5a) having a volume V2 downstream the piston (6), wherein said at least one outlet (4a, 4b) from the first and second pressure chambers (3a, 3b) are arranged to transfer said combustion gases to said compartments (5a, b) of said piston chamber to provide an overall pressure difference between compartments (5a) and (5b) pressing the piston (6) at an
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: March 7, 2023
    Assignee: SAAB AB
    Inventors: Michael Carlsson, Mats Runemård, Erik Fohrman, Owe Englund
  • Publication number: 20230040890
    Abstract: A locking arrangement can be used for securing electric module cards between two side walls of a housing. The locking arrangement includes two side members for fixed arrangement with the respective side walls. An opening defined between the side members accommodates electric contacts of the electric module cards. A first and a second transverse member form a frame with the side members in order to lock the electric module cards within the housing. A locking mechanism is detachably connects at least one of the transverse members to at least one of the side members by means of a snap-fit.
    Type: Application
    Filed: January 13, 2021
    Publication date: February 9, 2023
    Inventors: Fredrik Alfredsson, Jimmy Kjellsson, Daniel Wahlberg, Michael Carlsson
  • Publication number: 20210356244
    Abstract: The invention relates to a method of delaying a mechanism in a firearm and a delay unit for a projectile comprising i) a first and a second pressure chamber (3a, 3b) arranged to receive combustion gases in a firearm via at least one inlet (1a, 1b) arranged to each of said first and second pressure chambers (3a, 3b) following firing of a projectile ii) at least one outlet for transferring the combustion gases (4a, 4b), arranged to each of said first and second pressure chambers (3a, 3b), to a piston chamber in which a displaceable piston (6) is arranged dividing the piston chamber into a compartment (5b) having a volume V1 upstream the piston (6) and a compartment (5a) having a volume V2 downstream the piston (6), wherein said at least one outlet (4a, 4b) from the first and second pressure chambers (3a, 3b) are arranged to transfer said combustion gases to said compartments (5a, b) of said piston chamber to provide an overall pressure difference between compartments (5a) and (5b) pressing the piston (6) at an
    Type: Application
    Filed: December 12, 2019
    Publication date: November 18, 2021
    Inventors: Michael CARLSSON, Mats RUNEMÃ…RD, Erik FOHRMAN, Owe ENGLUND
  • Patent number: 6253348
    Abstract: The invention relates to majority voting testing. A number of input signals are monitored individually by separate monitors, one monitor for each signal. Each monitor generates a control signal representing the status of the monitored signal. The generated control signals are sent to a level control unit. The level control unit controls the input levels to a majority voter according to the control signals. Instead of signals that are faulty, the level control unit selects signals of specific logical levels to be forwarded to the majority logic. The logical levels of these so called replacement signals are selected such that the replacement signals do not interfere with the remaining correct signals. Furthermore, the majority voted output signal is monitored so as to selectively generate an alarm. The voting functionality is tested by stopping input signals according to a first procedure, thus generating an alarm. By stopping input signals according to a second procedure, an alarm is avoided.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: June 26, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Hans Bertil Davidsson, Ola Per Martinsson, Carl Michael Carlsson
  • Patent number: 6247160
    Abstract: The invention relates to majority voting. A number of input signals are monitored individually by separate monitors, one monitor for each signal. Each monitor generates a control signal representing the status of the monitored signal. The generated control signals are sent to a level control unit. The level control unit control the input levels to a majority voter according to the control signals. Instead of signals that are faulty, the level control unit selects signals of specific logical levels to be forwarded to the majority logic. The logical levels of these so called replacement signals are selected such that the replacement signals do not interfere with the remaining correct signals. Furthermore, the majority voted output signal is monitored so as to selectively generate an alarm. The voting functionality is tested by stopping input signals according to a first procedure, thus generating an alarm. By stopping input signals according to a second procedure, an alarm is avoided.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: June 12, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Stefan Hans Bertil Davidsson, Ola Per Martinsson, Carl Michael Carlsson