Patents by Inventor Hans Dalla Bona

Hans Dalla Bona 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).

  • Joint for connecting a partial dental prosthesis to the remaining natural human teeth
    Patent number: 4293303
    Abstract: A joint for connecting a partial dental prosthesis to remaining natural teeth has a compression spring (10) acting on joint portions (1, 7) displaceable in a sagital direction, which spring relieves the prosthesis (13) connected to one of the joint portions (7) in the unstressed state. The displacement of the joint portions when the prosthesis is stressed is delimited by the stop surfaces (14, 15) in such a manner that the spring (10) cannot be completely compressed. This protects the spring and its functional capacity is permanently ensured and an optimal distribution of the biting and chewing pressure acting on the prosthesis over the anchor tooth (3) and the gums (6) is also attained.
    Type: Grant
    Filed: April 29, 1980
    Date of Patent: October 6, 1981
    Inventor: Hans Dalla Bona