Patents by Inventor Norman F. Trafford

Norman F. Trafford 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: 5685763
    Abstract: A method of stripping leaf cutter bee nest blocks passes several sets of stripping pins through the block in a single pass. Each set of pins has a different length, the lengths differ so that only one set of pins at a time contacts the seal plugs in the nest block tunnels. One set of pins contacts the plugs and breaks them loose before next set contacts the plugs. The pins are spaced so that each pin of a set is not directly adjacent a pin of an immediately preceding or succeeding set. The method increases speed and reduces cocoon crush.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: November 11, 1997
    Inventor: Norman F. Trafford
  • Patent number: 5403226
    Abstract: A molded plastic leaf cutter bee nest block, having opposed sides, opposed ends, and opposed faces, formed of expanded plastic beads, having nonstandard length, to accommodate more integrally molded round bee holes. The holes may be tapered, for ease of stripping. The sides may be reinforced for ease of handling, assembling, strapping, transport and storage. High density polystyrene blocks have improved product life, while the blocks, reinforced or otherwise are parasite resistant.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: April 4, 1995
    Inventor: Norman F. Trafford