Patents by Inventor Per Kjaer

Per Kjaer 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: 4300707
    Abstract: There is provided a device which may be used as a rucksack frame in a first functional position and as a chair with a backrest in a second functional position. The device comprises a first and a second frame member with mutually parallel side parts of which the side parts of the first frame member have end portions which are hingedly connected to respective side parts of the second frame member at a distance from the ends of the latter frame member so that the side parts of the frame members may be disposed parallel with and at right angles to each other, respectively. At the end opposite to the articulated end portions the first frame member has a support portion projecting from the side parts a distance essentially corresponding to the distance between the hinge connections and the outer end of an end support portion of the second frame member, the support portions cooperating as chair supports in said second functional position of the device.
    Type: Grant
    Filed: August 24, 1979
    Date of Patent: November 17, 1981
    Inventor: Per Kjaer
  • Patent number: 4273370
    Abstract: A device for collecting and removing dog droppings or the like comprises a pair of gripping members which are hingedly connected to each other and arranged to be moved towards each other at free ends of the gripping members at a distance from the hinge connection, and a bag of a flexible material which in operational position is located in the space between the gripping members and at its open end is folded with its mouth portion about the free ends of the gripping members. A construction for holding an object in place is arranged between the gripping members in the vicinity of the hinge connection and is arranged to receive a number of bags, so that the bag may successively be extracted from the construction for holding an object in place for disposition in the operational position.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: June 16, 1981
    Inventor: Per Kjaer