Patents by Inventor Karl-Olof Sandgren

Karl-Olof Sandgren 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: 6058880
    Abstract: A claw for a milking machine comprises a housing (1, 3) defining an inner space and having four inlet members (8', 9'), which are intended to connect the inner space of the housing (1, 3) to a respective teatcup of the milking machine, and an outlet member, adapted to connect the inner space of the housing (1, 3) to a milk collecting member of the milking machine via a conduit member. The four inlet members are provided in pairs in such a manner that they are adapted to the natural position of the teats. Thereby, a first pair (8), intended for two front teats of the animal to be milked, has a different position with respect to the center axis (5) than a second pair (9'), intended for the rear teats of the animal.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: May 9, 2000
    Assignee: Alfa Laval Agri AB
    Inventors: Marie-Louise Gustafsson, Torbjorn Petterson, Karl-Olof Sandgren
  • Patent number: 5988105
    Abstract: A claw for a milking machine comprises a housing (1) having a first portion (2) and a second portion (3). On the second portion (3), there are provided inlet members (8, 9) which are intended to connect the inner space of the housing (1) to teatcup of the milking machine. On the first portion (2), there is provided an outlet member (6), which via a conduit member is intended to connect the inner space of the housing (1) to a milk collecting member of the milking machine and a distributing member having at least one inlet pipe directed in essentially the same direction as the outlet member. In order to minimize the torsional forces, which via the conduit member act on the claw when it is attached to an animal to be milked, the first portion (2) is movable in relation to the second portion (3).
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: November 23, 1999
    Assignee: Alfa Laval Agri AB
    Inventor: Karl-Olof Sandgren