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
Hand mixer
Remote management of networked systems using secure modular platform
Display screen with graphical user interface
System and method for selecting a video encoding format based on feedback data
Server providing pseudo print preview and final regular preview to device
Method and system for physical verification using network segment current
Economic filtering system for delivery of permission based, targeted, incentivized advertising
  Randomly Featured Patents
Speaker and manufacturing method therefor
Method of manufacturing self-soldering shaped pieces by powder metallurgy
Writing instrument cap
5.alpha.-reductase inhibitors
System for detecting and storing digital pictures
Method for starting an engine
Packing machine
Passive interface and software configuration for portable devices
Apparatus for detecting forces directing the movement of a manipulating instrument
Color cathode-ray tube having substantially flat face and rear plates opposing each other