Patents by Inventor David Carvin

David Carvin 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: 6615536
    Abstract: An artificial pine needle used as a synthetic ground cover comprised of an extruded monofilament strand having a substantially C-shaped cross section. The artificial pine needle consists of a blend of polyolefin resin material, such as biodegradable recycled polypropylene, and additive for imparting proper color, luster, and effective resistance to ultraviolet radiation. Additional concentrates may be added for imparting scents such as pine or citronella, and coatings on the inward surface of the artificial needle may be applied to provide a means for delivering fertilizers or pesticides.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: September 9, 2003
    Inventor: David Carvin
  • Publication number: 20020134009
    Abstract: An artificial pine needle used as a synthetic ground cover comprised of an extruded monofilament strand having a substantially C-shaped cross section. The artificial pine needle consists of a blend of polyolefin resin material, such as biodegradable recycled polypropylene, and additive for imparting proper color, luster, and effective resistance to ultraviolet radiation. Additional concentrates may be added for imparting scents such as pine or citronella, and coatings on the inward surface of the artificial needle may be applied to provide a means for delivering fertilizers or pesticides.
    Type: Application
    Filed: March 23, 2001
    Publication date: September 26, 2002
    Inventor: David Carvin
  • Patent number: 4850283
    Abstract: A system of facilitating the handling of bagged cargo normally stored in any applicable facility on pallets wherein the system includes the formation of elongated passages through the provision of removable or fixed channel members disposed in sandwiched relation between the under portion of the bagged cargo and the supporting surface of the pallet and the inclusion of a plurality of sling members positionable along the length of the passages and connectable to a lifting crane when it is desired to vertically transport the cargo as by lifting crane to the hold of a cargo ship. The channel members are adaptable to the pallet without modifying the construction or necessitating the discarding of standard pallet construction in favor of newly designed or structured pallets.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: July 25, 1989
    Inventor: David A. Carvin