Resources Contact Us Home
Convertible platen for graphics plotter

Image Number 5 for United States Patent #4512505.

A convertible platen for use in a graphics plotter to allow its selective use as either a cut paper plotter or a roll paper plotter. The platen is formed from a specially designed aluminum extrusion and a pair is mounted with one on either side of the drum of a drum plotter between the drum and the supply/takeup rollers. The platens can be raised and held adjacent the drum and spanning the vacuum columns in the plotter to create a table having curved outer edges to support cut paper. They can be released and dropped into the vacuum columns whereby they lie against the outer surfaces and form the upper inner wall with curved upper edges over which paper smoothly is guided between the vacuum columns and the supply/takeup rollers.

  Recently Added Patents
Low-complexity motion vector prediction systems and methods
Lighting elements
Method for driving electrophoretic display device, electrophoretic display device, and electronic device
System and method for identifying a target signal in an optical transport network frame structure
Image sensor and method for fabricating the same
Method for manufacturing photoelectric conversion device
Coreference resolution in an ambiguity-sensitive natural language processing system
  Randomly Featured Patents
Glass fibres with improved biological compatibility
Multilayer printed wiring board
Influence based rewards for word-of-mouth advertising ecosystems
Precipitated silica beads
Silicon on insulator (SOI) transistor and methods of fabrication
Power MOSFET device having low on-resistance and method
Active seat belt control system with seat belt in-use sensor
Isoprene derivatives
Process for producing a cyclic ether
Double plate retrofit assembly for a meat grinder