Patents by Inventor Wolfgang Kehrle

Wolfgang Kehrle 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: 4202223
    Abstract: An apparatus for removing a roll of film on a spool from a camera comprising, a top tong arm having a top grip portion and a top handle portion, and a bottom tong arm pivotally mounted to the top tong arm and having a bottom grip portion and a bottom handle portion. The top and bottom grip portions define a film roll engagement mouth which is openable and closable by moving the bottom handle portion against the top handle portion. At least one of the top and bottom grip portions include lateral guide faces for laterally retaining the spool in the film roll engagement mouth. A biasing spring may be positioned between the top and bottom handle portions for urging the top and bottom grip portions toward each other to firmly retain a roll of film within the film roll engagement mouth. A tensioning lever or knob may be provided which may be engaged with the spool when the roll of film and spool are engaged in the film engagement mouth, for rotating the spool and tightening the film thereon.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: May 13, 1980
    Inventor: Wolfgang Kehrle