Patents by Inventor Hamalainen Heikki

Hamalainen Heikki 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: 4363348
    Abstract: A lift wall comprising a ceiling module to which two wall cloths have been affixed and within which a lifter and power units are accommodated, the lift wall together with its ceiling module constituting one unitary unit mountable as such on the ceiling. The wall cloths are mutually connected by framelike connector elements, with the wall cloths spaced at a constant distance from each other. The connector elements are located over each other in registry and mutually spaced. The lower edge comprises an elongated lower edge element lying in a horizontal plane and running parallel with the wall to which wall cloths and lifting members are affixed.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: December 14, 1982
    Inventor: Hamalainen Heikki