Patents by Inventor Leonidas C. Miller

Leonidas C. Miller 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: 4618178
    Abstract: A hand held, vacuum actuated pickup instrument and method of operation are disclosed for an instrument of the type including an elongated body with a pickup attachable at one end and a tail stock at the other end for connection with a vacuum source. According to the present invention, a valve is arranged within the elongated body for selectively venting an axially extending passage connecting the pickup with the tail stock, the valve including a valve element overlying a vent opening, a lever portion attached to the valve element and a fulcrum providing for pivotal movement of the valve element. A restrictive opening is formed between the axially extending opening and the tail stock to further facilitate operation of the instrument.
    Type: Grant
    Filed: June 7, 1985
    Date of Patent: October 21, 1986
    Assignee: Clifford L. Hutson
    Inventors: Clifford L. Hutson, Leonidas C. Miller
  • Patent number: 3940172
    Abstract: A pencil-size instrument body has a manually operable valve to control an air passage connected to a vacuum source. A first hollow axle projecting forward from the body carries a rotary finger control member. A rigid air tube of small diameter is mounted by one end in a second hollow axle and constitutes therewith a replaceable probe assembly that plugs into the first hollow axle. A rotary hub member on the second hollow axle is operated by the rotary finger control member and is connected to the end of a coil spring that rotatably embraces the rigid air tube. The second end of the coil spring is connected to a rotary tip member on the rigid air tube that picks up small objects by vacuum action and rotates the objects under control of the finger control member.
    Type: Grant
    Filed: April 22, 1974
    Date of Patent: February 24, 1976
    Assignee: Clifford L. Hutson
    Inventors: Clifford L. Hutson, Leonidas C. Miller