Patents by Inventor M. Gaines Chestnut

M. Gaines Chestnut 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).

  • Heater apparatus for use in a liquid environment
    Patent number: 5444227
    Abstract: An improved heater and control apparatus (10) suitable for maintaining a proper temperature in a liquid environment such as an aquarium (12) is provided. The apparatus (10) includes a heater element (26) housed within a protective casing (28) to reduce the likelihood of heater element (26) breakage. A number of openings (30) are provided in casing (28) to permit direct contact between the heater element (26) and water in the aquarium (12). The control assembly (16) includes a novel active light display (99). Additional novel features and corresponding advantages of the apparatus (10) are disclosed.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: August 22, 1995
    Assignee: Warner-Lambert Company
    Inventor: M. Gaines Chestnut
  • Apparatus for partial disassembly of firearm
    Patent number: 4901411
    Abstract: A tool for rotating a barrel bushing or a spring plug, such as in a .45 pistol, is provided. The tool has a wide flange to prevent uncontrolled ejection of the freed plug and spring. The tool includes a recess for partially receiving the ejected plug. Studs are positioned to control the amount and/or direction of rotation of the bushing or plug.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: February 20, 1990
    Assignee: Ram-Line, Inc.
    Inventors: M. Gaines Chestnut, Ernest Brandenburg
  • Aquarium gravel cleaner
    Patent number: D282016
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: December 31, 1985
    Inventor: M. Gaines Chestnut