Patents by Inventor Frank B. Andersen

Frank B. Andersen 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).

  • Trough for piglets
    Patent number: 7467599
    Abstract: A trough is disclosed for supplying piglets with mineral supplements in the suckling period. The trough is designed to awaken the piglets' curiosity and thus make them root in the bottom of the trough, where the mineral supplements are dispensed in form of a dry powder mixture, and thus reduce spillage as compared to placing the mineral supplements on the floor of the pen. During the pre-weaning of the piglets the trough can be converted to serve as a normal trough for solid feed.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: December 23, 2008
    Assignee: Biofiber-Damino A/S
    Inventors: Karl J. Jensen, Frank B. Andersen, Jens K. Munk
  • Gun hammer
    Patent number: 5335437
    Abstract: A gun hammer has a striking surface on the hammer's face which automatically withdraws inside the body of the hammer when pressure is applied by the gun user's finger or thumb to the hammer's spur. The possibility of the firearm accidentally discharging during decocking is eliminated.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: August 9, 1994
    Inventor: Frank B. Andersen