Patents by Inventor Clas-Goran Johansson

Clas-Goran Johansson 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).

  • Plate heat exchanger
    Patent number: 5462112
    Abstract: In a plate heat exchanger, a package of heat transferring plates is kept together between two end plates by means of two or more threaded bolts and nuts in threading engagement therewith. A motor is arranged through an endless drive member, such as a tooth belt or the like, simultaneously to rotate all the bolts or all the nuts. The plate heat exchanger thereby may be rapidly, simply and safely opened and restored for operation in connection with inspection and/or cleaning of the heat transferring plates.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: October 31, 1995
    Assignee: Alfa-Laval Food Engineering AB
    Inventor: Clas-Goran Johansson