Patents by Inventor Karl E. Jonsson

Karl E. Jonsson 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: 4496920
    Abstract: A contactor has a movable contact assembly which is connected to the magnet armature in such a way that the contact assembly moves translatorily in the same direction as the armature between a closed and an open position. The contact assembly comprises a movable main contact with relatively small contact elements of silver alloy and a movable arcing contact with contact elements of silver-free material. The arcing contact makes and breaks the main current, whereas the main contact carries almost the entire current in closed position. The contacts have separate contact pressure springs. The contactor has at least one opening spring which is obliquely directed in relation to the direction of motion of the armature and is clamped between two bearing points, of which one is fixed whereas the other, upon operation of the electric switch, is displaced together with the armature in the same direction of motion.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: January 29, 1985
    Assignee: ASEA Aktiebolag
    Inventors: Karl E. Jonsson, Gosta Lindgren
  • Patent number: 4292324
    Abstract: A pharmaceutical composition containing zinc in the form of one or more water soluble zinc salts and a complex-former selected from the group consisting of hydroxycarboxylic acids, acid anhydrides, or salts thereof. The water solutions thereof give a palatable, acceptable peroral zinc solution and are useful for treating leg ulcers, post-operative wounds, decubital ulcers and other diseased conditions in zinc anemia.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: September 29, 1981
    Assignee: Aktiebolaget Draco
    Inventors: Karl E. Jonsson, Nils F. E. Moren