Patents by Inventor Alfred Yee

Alfred Yee 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).

  • Publication number: 20070081858
    Abstract: A pre-fabricated concrete slab system and method have matching rectangular slabs with cooperatively fitting male and female type connectors which fit adjacent to each other in a checkerboard fashion. The slabs include spaced reinforcing rods extending longitudinally and transversely therethrough. In at least some of the slabs, the rods' distal ends protrude outwardly away from one or more side edges of the slabs to form a plurality of male connectors. Correspondingly, at least some of the slabs include a plurality of corresponding female sockets on one or more sides thereof, each female socket receiving a corresponding male connector when dropped therein. Through interconnection of corresponding female sockets and male connectors by steel reinforcing bars extending in both the longitudinal and transverse directions, a continuous tension reinforcement is established between adjacent slabs in both the longitudinal and transverse directions.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 12, 2007
    Inventor: Alfred Yee
  • Publication number: 20050220539
    Abstract: A pre-fabricated concrete slab system and method have matching rectangular male and female type slabs which fit adjacent to each other in a checkerboard fashion. The male slabs include spaced reinforcing rods extending longitudinally and transversely through the male slabs with the rods' distal ends protruding outwardly away from one or more side edges of the male slabs to form a plurality of male connectors. The female slabs include a plurality of corresponding female sockets on one or more sides of the female slab, each female socket receiving a corresponding male connector when dropped therein. Corresponding female sockets positioned on opposite side edges of the female slabs are interconnected by steel reinforcing bars in both the longitudinal and transverse directions in a configuration similar to the male slabs so that, when connected, a continuous tension reinforcement is established between male and female slabs in both the longitudinal and transverse directions.
    Type: Application
    Filed: April 1, 2004
    Publication date: October 6, 2005
    Inventor: Alfred Yee