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
Lock monitoring
Amide derivatives, process for preparation thereof and use thereof as insecticide
Electrowetting display devices with a reflective plate structure
Lithographic apparatus and device manufacturing method
System and method for redundant array copy removal in a pointer-free language
Exposure method, exposure apparatus, and method for producing device
Apparatus and method for exerting force on a subject tissue
  Randomly Featured Patents
Therapeutic effervescent composition
Interface for meeting facilitation and coordination, method and apparatus
Data authentication circuit, battery pack and portable electronic device
XML sub-document versioning method in XML databases using record storages
Heater for top portions of containers
Manufacturing system, manufacturing method, managing apparatus, managing method and computer readable medium
Continuous inkjet printer cleaning method
Gamma camera device
Noise suppression building
Single layer double ring hybrid magic-tee