Patents by Inventor John Cammenga

John Cammenga 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: 8764213
    Abstract: A lighted knife device has a knife blade, handle and a lighting device in a side of the handle and also there is a second lighting device arranged in mirror fashion. The first and second plurality of lighting devices are arranged at differing angles to light up an area underneath a blade edge. Alternatively, the first and second plurality of lighting devices are arranged at a same angle but also at a different angle such that the surface underneath a blade edge is lit up in a perpendicular fashion from sides of the blade. An energy storage device situated inside of a cavity within the handle contacting a tang blade portion. There is also a toggle switch contacting the energy device and the lighting devices of the banks of lighting devices through an internal switch of the toggle switch. The blade tang connected to each of the lighting devices.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: July 1, 2014
    Assignee: Bladetronics, LLC
    Inventors: John Cammenga, Anthony Allan
  • Publication number: 20130223045
    Abstract: A lighted knife device has a knife blade, handle and a lighting device in a side of the handle and also there is a second lighting device arranged in mirror fashion. The first and second plurality of lighting devices are arranged at differing angles to light up an area underneath a blade edge. Alternatively, the first and second plurality of lighting devices are arranged at a same angle but also at a different angle such that the surface underneath a blade edge is lit up in a perpendicular fashion from sides of the blade. An energy storage device situated inside of a cavity within the handle contacting a tang blade portion. There is also a toggle switch contacting the energy device and the lighting devices of the banks of lighting devices through an internal switch of the toggle switch. The blade tang connected to each of the lighting devices.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 29, 2013
    Inventors: John Cammenga, Anthony Allan
  • Patent number: 7497044
    Abstract: A magazine for a firearm includes an elongated containing body and a closure member adapted to hold cartridges. The closure member longitudinally slides on the containing body and is extendable to open a side of the containing body for cartridge loading. The closure member has opposing sidewalls forming an integral handle surface that can be grasped for moving it. A follower and spring bias cartridges toward one end of the magazine. A latching mechanism is provided for holding the follower in a disengaged position when the closure member is extended, and is configured to release when the closure member is closed. Preferably, the containing body and closure member are constructed to include integrally formed features that cooperate with an automatic latching mechanism, thus minimizing parts.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: March 3, 2009
    Assignee: Cammenga Corporation
    Inventors: Matt Cammenga, John Cammenga, Rob Austin
  • Publication number: 20070157501
    Abstract: A magazine for a firearm includes an elongated containing body and a closure member adapted to hold cartridges. The closure member longitudinally slides on the containing body and is extendable to open a side of the containing body for cartridge loading. The closure member has opposing sidewalls forming an integral handle surface that can be grasped for moving it. A follower and spring bias cartridges toward one end of the magazine. A latching mechanism is provided for holding the follower in a disengaged position when the closure member is extended, and is configured to release when the closure member is closed. Preferably, the containing body and closure member are constructed to include integrally formed features that cooperate with an automatic latching mechanism, thus minimizing parts.
    Type: Application
    Filed: January 11, 2006
    Publication date: July 12, 2007
    Inventors: Matthew Cammenga, John Cammenga, Robert Austin