Patents by Inventor David Fredrick Smith

David Fredrick Smith 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: 8201518
    Abstract: An automatic egg injection machine comprises a separate injector support grid and injector locking device. The injector locking device is attached to the body of the egg injection machine to prevent motion during the vaccination process. Individual air tubes are inserted into slots in the injector locking device, and are inflated with compressed air to lock the injectors in place during the injection process, thereby minimizing the possibility of injector movement. Both the injector support grid and injector locking device can be exchanged for other components with different egg configurations so that one egg injection machine can be used for more than one sized incubator egg flat.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: June 19, 2012
    Inventor: David Fredrick Smith
  • Publication number: 20100192859
    Abstract: An automatic egg injection machine comprises a separate injector support grid and injector locking device. The injector locking device is attached to the body of the egg injection machine to prevent motion during the vaccination process. Individual air tubes are inserted into slots in the injector locking device, and are inflated with compressed air to lock the injectors in place during the injection process, thereby minimizing the possibility of injector movement. Both the injector support grid and injector locking device can be exchanged for other components with different egg configurations so that one egg injection machine can be used for more than one sized incubator egg flat.
    Type: Application
    Filed: April 13, 2010
    Publication date: August 5, 2010
    Inventor: David Fredrick Smith
  • Patent number: 7721674
    Abstract: An automatic vaccinator of eggs, consisting of a system for applying vaccine with a vaccine chamber in which vaccine bags are hung and with an air bag that, when expanded, forces the vaccine from the bags and through tubing to a distribution manifold and the injectors, so that the vaccine is delivered to the eggs, is disclosed. A pressure sensor is installed in the distribution manifold and connected to a regulator, measuring the pressure in the distribution manifold at the point farthest from the vaccine chamber and controlling the pressure in the air bag to maintain a uniform quantity of vaccine being injected into the eggs and turning off the vaccinator if the pressure falls below a critical level, signaling that the vaccine bags are empty. The mechanical unit includes a system to support, align and secure the injectors over the egg tray, composed of two plates that work independently, a support plate and an alignment plate.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: May 25, 2010
    Inventor: David Fredrick Smith
  • Patent number: 7430987
    Abstract: The invention relates to a system of automatic vaccination of eggs, developed for the purpose of vaccinating large quantities of fertile eggs in order to reduce the costs and labor involved, reduce embryonic mortality by increasing protection from diseases and reduce the stress in the first day of life of poultry chicks by eliminating the process of manually vaccinating each chick. The invention comprises an automatic system controlled by a PLC (programmable logic controller), using an injector that has a cylindrical body and cap made from high density non-corrosive plastic and together they form a pneumatic chamber, the cap containing an electronic contact sensor to signal empty egg spaces and avoiding wasting vaccine. The injector's pneumatic chamber contains a plasticized fiber sleeve to permit smooth movement of the pneumatic plunger.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: October 7, 2008
    Inventor: David Fredrick Smith
  • Publication number: 20070255216
    Abstract: An automatic vaccinator of eggs, consisting of a system for applying vaccine with a vaccine chamber in which vaccine bags are hung and with an air bag that, when expanded, forces the vaccine from the bags and through tubing to a distribution manifold and the injectors, so that the vaccine is delivered to the eggs, is disclosed. A pressure sensor is installed in the distribution manifold and connected to a regulator, measuring the pressure in the distribution manifold at the point farthest from the vaccine chamber and controlling the pressure in the air bag to maintain a uniform quantity of vaccine being injected into the eggs and turning off the vaccinator if the pressure falls below a critical level, signaling that the vaccine bags are empty. The mechanical unit includes a system to support, align and secure the injectors over the egg tray, composed of two plates that work independently, a support plate and an alignment plate.
    Type: Application
    Filed: October 20, 2006
    Publication date: November 1, 2007
    Inventor: David Fredrick Smith