Patents by Inventor Leighton Schafer

Leighton Schafer 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: 7066002
    Abstract: A metal sheet punch device for metal sheets which includes a longitudinally extended frame having forward and rearward ends and alignment devices for aligning the frame on a metal sheet. At least two metal punch devices are mounted on the frame, each including a metal punch support structure movably mounted on the frame and a metal punch having a pointed lower end, the metal punch mounted on the underside of the metal punch support arm structure. A support structure drive device such as a coiled spring is operatively connected to the metal punch support structure to rapidly move the metal punch support structure between a retracted position and an extended position and a trigger device is operatively connected to the metal punch devices to trigger each of them to drive the metal punch into the metal sheet to form at least two securement screw indentations therein.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: June 27, 2006
    Inventors: John Price, Leighton Schafer
  • Publication number: 20050204652
    Abstract: A shingle cutting device for use in roof valleys includes a base body having an upper surface and a lower surface and a handle device mounted on the upper surface. An inverted, generally C-shaped roof valley-engaging guide channel is formed on and extends along the lower surface of the base body, and a blade support arm is mounted on and extends outwards from the base body, the blade support arm having an inner end and an outer end. A blade support device such as a blade clamp is mounted on the blade support arm adjacent the outer end thereof and a shingle cutting blade is removably mounted in the blade support device and extends downwards therefrom, the shingle cutting blade operative to engage and cut shingles to form a straight cut shingled roof line which extends generally parallel with the adjacent roof valley.
    Type: Application
    Filed: March 8, 2005
    Publication date: September 22, 2005
    Inventor: Leighton Schafer
  • Publication number: 20050199034
    Abstract: A metal sheet punch device for metal sheets which includes a longitudinally extended frame having forward and rearward ends and alignment devices for aligning the frame on a metal sheet. At least two metal punch devices are mounted on the frame, each including a metal punch support structure movably mounted on the frame and a metal punch having a pointed lower end, the metal punch mounted on the underside of the metal punch support arm structure. A support structure drive device such as a coiled spring is operatively connected to the metal punch support structure to rapidly move the metal punch support structure between a retracted position and an extended position and a trigger device is operatively connected to the metal punch devices to trigger each of them to drive the metal punch into the metal sheet to form at least two securement screw indentations therein.
    Type: Application
    Filed: March 12, 2004
    Publication date: September 15, 2005
    Inventors: John Price, Leighton Schafer