Patents by Inventor Sven A. G. Andreasson

Sven A. G. Andreasson 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).

  • Invalid chair
    Patent number: 4249774
    Abstract: An invalid chair has a seat divided into a central saddle portion and a leg supporting portion. The saddle portion is rigidly connected with the backrest having two armrests. The leg supporting portion is hingedly connected at its front end to the base frame of the chair and a linkage is provided, so that when lifting the saddle portion it will leave the leg supporting portion and carry the person sitting on the saddle portion with his hands on the armrests until the legs of the person are substantially straightened out with his feet resting on the floor.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: February 10, 1981
    Inventor: Sven A. G. Andreasson