Patents by Inventor Samuel G. Maness

Samuel G. Maness 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).

  • Dual chamber personal flotation device
    Patent number: 4324234
    Abstract: A dual chamber personal flotation device which allows rebreathing into it. One of the chambers is for flotation only and is inflated with CO.sub.2 ; the other is for rebreathing, and is inflated with air. A tube located close to the wearer's mouth has a combination mouthpiece-shutoff valve on it which is designed to collect a minimum amount of water in it prior to being inserted in the wearer's mouth, thereby minimizing problems due to water ingestion during rebreathing. The chambers are independently inflatable in the event that either the size or the buoyancy has to be minimized in order to escape.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: April 13, 1982
    Inventor: Samuel G. Maness
  • Locking hoist hook
    Patent number: D389983
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: January 27, 1998
    Inventor: Samuel G. Maness
  • Magnetic lifting ring
    Patent number: D816935
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: May 1, 2018
    Assignee: LIFESAVING SYSTEMS CORP.
    Inventor: Samuel G. Maness
  • Magnetic lifting ring
    Patent number: D816936
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: May 1, 2018
    Assignee: LIFESAVING SYSTEMS CORP.
    Inventor: Samuel G. Maness