Resources Contact Us Home
Printer with multi-tractor form shuttle

Image Number 3 for United States Patent #5139355.

A multi-tractor shuttle printer having an array of moveable tractors such that a selected tractor and form can be shuttled into, and out of, position for printing. A drive motor is linked via cable to the tractors to shuttle them into and out of position. Guide plates located on each side of the array of tractors have guide slots into which a guide rod from each tractor fits. Movement through the path of the guide slots is controlled by a pair of flippers located in each guide plate. When a tractor is driven to the engaged position, it engages a main drive gear which controls transportation of a continuous form through the engaged tractor into the printer.

  Recently Added Patents
Solar-powered toy car
Triple-lip seals for bearings and bearings incorporating the same
Golf club with face angle adjustability
Fishing system for the physically challenged
Method and apparatus for surgical navigation
Liquid crystal display including subpixel electrodes having fine protruding patterns
Gap-filling composition with excellent shelf life by end-capping
  Randomly Featured Patents
Aqueous dispersions of polyamides
Superconducting analog to digital converter type circuit
Analog-to-digital converter with electro-optical coding
Electrical heating device
Continuous process for polymerizing anionically polymerizable vinyl compounds
Shoulder pad assembly for contact sports
Detergent tablet with dual compartments
Wood fibre debris processor
Pine tar applicator
Hand held device for an imprinting element