Patents by Inventor Bertil Ryberg

Bertil Ryberg 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: 5635819
    Abstract: A method and a device for charging a rechargeable battery by means of a generator which delivers regulating voltage from a voltage regulator receiving a value indicative of the battery voltage in order to regulate the generator in response to the voltage in relation to predetermined nominal charging voltage. A voltage drop may be introduced between the battery and the regulator in dependence of the operational condition of the battery, the voltage drop reducing the battery the voltage value received by the regulator. In accordance with the invention, the voltage drop is introduced between the positive terminal of the battery and the regulator by connection of a diode which is forward biased. The voltage drop is introduced in dependence of the battery voltage.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: June 3, 1997
    Assignee: AB Volvo Penta
    Inventor: Bertil Ryberg
  • Patent number: 5441025
    Abstract: An electromagnetic device for starting and stopping diesel engines. The device comprises a spring biased pulling-rod (12) which is joined to the armature of the electromagnet (11), a lever biased by a spring (6) has a cam roller (7) which presses against the rod. The lever is fixed on a shaft which controls a starting/stopping device in the engine fuel pump.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: August 15, 1995
    Assignee: AB Volvo Penta
    Inventor: Bertil Ryberg
  • Patent number: 4516000
    Abstract: A starter switch arrangement for boats, where the switch may be subjected to water splash or the like. The arrangement includes a key with a gripping component and an insert component to be inserted into an aperture in the switch for opening and locking the switch. The key has a cover component positioned between the gripping and insert components and provided to be sealingly supported against the switch in the inserted position of the key during the utilization of the boat. The cover component will sealing close a portion of the switch around the aperture of the switch.
    Type: Grant
    Filed: September 9, 1983
    Date of Patent: May 7, 1985
    Assignee: Aktiebolaget Volvo Penta
    Inventors: Bertil Ryberg, Kenth Mellgren