Patents by Inventor William C. Fields

William C. Fields 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: 5881898
    Abstract: An open top drum having a closed bottom, a sidewall extending upwardly from said bottom, and a chime portion for receiving a removable cover. The chime portion extends from the sidewall so as to define an open top and includes a substantially radial first chime wall, a substantially cylindrical second chime wall directed upwardly from an outer portion of the first chime wall, and an exterior circumferential rib circumscribing a lower portion of the second chime wall for added rigidity. The drum assembly may also include a cover having a peripheral chime receiving member, and a retaining ring having a first leg for engaging the cover and a second leg for engaging the first chime wall. The legs are joined by an intermediate band. The cover may include a circumferential flange that extends over a portion of the second chime wall but not over the rib. The rib fills a substantial portion of an area defined by the second leg, intermediate band, second chime wall and circumferential flange.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: March 16, 1999
    Assignee: Sonoco Products Company
    Inventors: Patrick Irwin, William C. Fields
  • Patent number: 5554335
    Abstract: A process is provided for producing contrasting, long lasting, glassy heat fused images on the surface of ceramic materials such as bricks using a laser to vitrify the substrate material. The process is accomplished in three stages: Stage 1) the laser produces a non-adherent, highly light absorptive layer by heating and removing material from the marking field to create depth into the brick's surface; Stage 2) melting of the main portion of the substrate material along the marking field using the non-adherent light absorptive layer from Stage 1 as an effective light absorber/heat transducer to cause vitrification along the marking field; Stage 3) residue from the melting in stage 2 is removed by laser ablation to produce the vitrified finished mark.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: September 10, 1996
    Assignee: Laser Light Technologies, Inc.
    Inventors: William C. Fields, Dan Fredrick, Steve Grannemann, Phyllis Hannan, Igor Lukashevsky
  • Patent number: 4870789
    Abstract: A Manufactured Building Adjustable Leveling and Support Device is a fabricated metallic structure attached by means to a non-metallic base or footing characterized by wood, composite plastic materials, concrete or mortar, which devise, when used individually or in conjunction with other identical devices or unrelated devices or structures, provides an adjustable means of leveling and supporting the mainframe chassis of any manufactured building whose mainframe consists of one or more mainframe beams characterized by metallic "I" beams, "C" channel or other such structural shapes running the length or width of the building.
    Type: Grant
    Filed: January 4, 1988
    Date of Patent: October 3, 1989
    Inventors: Steven J. Clark, William C. Fields
  • Patent number: D359150
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: June 6, 1995
    Assignee: Sonoco Products Company
    Inventors: John H. Malik, Patrick E. Irwin, Floy C. Jones, William C. Fields