Patents by Inventor Robert Lawhon

Robert Lawhon 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).

  • COMPACT FURNITURE
    Publication number: 20220400866
    Abstract: Furniture such as a cot, table, or chair is provided that uses shock-corded poles in combination with one or many torsion spring mechanisms to achieve a compact pack size. Alternatively, central hubs may be used in lieu of the spring mechanisms. The furniture maintains its usefulness by assembling to a size comparable with conventional full-sized furniture. One or many torsion springs associated with the furniture allow a user to easily achieve tension over desired elements of the furniture while reducing user exertion.
    Type: Application
    Filed: October 2, 2020
    Publication date: December 22, 2022
    Inventors: Erin Fillingham, Isaiah Gross, Matthew G. Law, Robert Lawhon
  • Camping popcorn popper
    Publication number: 20060249031
    Abstract: A camping popcorn popper that is portable and may be taken, for example, to a campsite for use while camping. In an embodiment, the camping popcorn popper includes a housing and a burner assembly for burning fuel, the burner assembly being at least partly mounted within the housing. A cooking pot is mounted above the burner assembly and is used for heating popcorn kernels. A chute is provided for directing popcorn kernels flowing out of the cooking pot away from the cooking pot.
    Type: Application
    Filed: May 5, 2005
    Publication date: November 9, 2006
    Applicant: The Coleman Company, Inc.
    Inventors: Norris Long, Robert Lawhon
  • Compressed, wedged float glass bottom structure
    Patent number: 5007950
    Abstract: In a float glass chamber, particularly in a region operating at higher than usual temperatures, integrity of the bottom structure is sustained by employing wedge shaped bottom blocks that are maintained in compression by externally applied mechanical forces. The arrangement permits the use of a bi-layer bottom construction with a high alumina upper course and a clay bottom course.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: April 16, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Bert K. Krushinski, Robert A. Lawhon, Francis A. Radecki, Ronald L. Schwenninger
  • Method of glass batch preheating and liquefying with recycling of particulates
    Patent number: 4696691
    Abstract: In a material preheating and liquefying process such as in a glassmaking operation, particulates entrained in the exhaust from the preheating stage are collected and returned to the process at a location where a molten phase is present and re-entrainment is suppressed.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: September 29, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Robert A. Lawhon, Robert B. Heithoff, Wayne H. Gonzalez
  • Kiln construction
    Patent number: 4659356
    Abstract: An apparatus for and method of adjusting the effective length of a rotary kiln. Preheating gas enters the kiln, passes over a portion of the material to be heated and exits the kiln through an axially extending exhaust duct. Changing the length of the duct modifies the amount of time the material is subjected to direct heating by the gas so that the effective heating length of the kiln is changed.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: April 21, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Robert A. Lawhon, James L. Karraker
  • Apparatus and method for attenuating glass ribbon
    Patent number: 4316733
    Abstract: An edge roll apparatus for engaging the marginal edge portion of a hot ribbon of glass, including a body portion and circumferentially positioned teeth. The teeth are shaped to establish at least a 90.degree. angle between the surface of the glass and the leading and outwardly directed edges of the teeth during at least one half of a tooth's engagement path to improve gripping ability.
    Type: Grant
    Filed: September 25, 1980
    Date of Patent: February 23, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Robert A. Lawhon, Jeffrey S. Yigdall