Patents by Inventor Albert Koehler

Albert Koehler 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: 5325745
    Abstract: A screwdriver having a plurality of bits. There is housing having a hollow interior to receive the bits. The housing has a handle and an open end, remote from the handle. There is an internal column that is attached to the housing. The internal column has a recessed end to receive a bit and prevents rotation of the bit relative to the housing. There are openings around the housing extending longitudinally of the housing. Each bit is operated by an actuator extending through an opening in the housing. There is a leaf spring attached to the inner end of the actuator that receives a bit. The bit may be moved from a position of storage within the handle by pressing a pre-selected actuator, moving the bit attachment out of the open end of the housing, holding the actuator down and retracting the bit to engage the recess of the column. The guidance system is simpler than the prior art. The handle is smaller than the prior art systems. The mode of operation is simple.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: July 5, 1994
    Inventor: Albert Koehler
  • Patent number: 4762036
    Abstract: A multi-bit screw driver is disclosed. It is ccomprised of a main body forming a handle at one end and a bit retaining heat at the other and having a plurality of bit storage locations radially positioned around said head. A bit is provided for each storage location and a centrally located bit insert in the body is used to receive the inner end of a selected bit. Means, mechanically linked with each bit is used for sliding the bit from the storage location to the central bit insert.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: August 9, 1988
    Inventors: Anton Orlitzky, Albert Koehler