Patents by Inventor Leo B. Roberts

Leo B. Roberts 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: 5347440
    Abstract: A portable electric lamp has a flat sided body that contains one or more batteries to power a lamp bulb, and an enclosure which has a light-transmitting lens portion, the enclosure housing the lamp bulb. The enclosure is mounted for sliding movement on and with respect to the body. A switch, a battery contact of which is carried by the enclosure, moves with the enclosure, into and out of contact with the battery to energize and de-energize the lamp bulb. In the embodiment described, the body is made up of two cavities, hinged along a long edge. An opposite long edge is provided with tabs on which mounting lugs are provided that fit into channels in the enclosure to permit sliding and to mount the enclosure on the body. The assembled lamp has no protrusions, as distinguished from lamps with switch buttons extending from them.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: September 13, 1994
    Assignee: Roberts Marketing, Inc.
    Inventors: Stephen A. Roberts, Leo B. Roberts, Ronald R. Klawitter
  • Patent number: 5005294
    Abstract: A skimmer/separator ladle has a handle, a bowl or spoon integral with the handle, the bowl having a lip at its upper edge forming a spout defining one end of the bowl, the rest of the bowl constituting a container section, and a separator gate removably mounted in the bowl between the spout and the container section. The gate has a concave bottom so as to define a liquid passage between it and the bottom of the ladle.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: April 9, 1991
    Inventors: Leo B. Roberts, Emma F. Roberts
  • Patent number: 4969258
    Abstract: Simultaneous multiple pin insertion into a printed circuit board in which the pins are held by a carrier with the pins initially having ends located within holes in the board with the pins supporting the carrier above the board. The carrier is then urged towards the board conveniently by press head operation to drive the pins through the board. Conveniently the press head also operates with a pin straightener, after pin insertion, the press head being reciprocable in two horizontal directions to perform a pin straightening operation.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: November 13, 1990
    Assignee: Northern Telecom Limited
    Inventors: James Fisher, Charles C. Balkenhol, Leo B. Roberts
  • Patent number: D308151
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: May 29, 1990
    Inventors: Leo B. Roberts, Emma F. Roberts
  • Patent number: D358676
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: May 23, 1995
    Assignee: Roberts Marketing Co.
    Inventors: Stephen A. Roberts, Leo B. Roberts