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
Photoelectric conversion device and fabrication method thereof
KVM switch, method for controlling the same, switching system for multi-monitor, and switching method for multi-monitor
Distillation of crude alcohol product using entrainer
LED current control in a dimmable LED illumination system
Methods and systems for image data processing
Power converter for vehicle
Semiconductor device
  Randomly Featured Patents
Method and apparatus for the attachment of a fastener element to a component, in particular to a sheet metal part
Apparatus for treating a workpiece with a granular media
Control assembly for controlling a fuel cell system during shutdown and restart
Self-supporting, adjustable funnel
Tilting positioner for a micropositioning device
Eyeglasses case with clip-on glasses compartment
Fuel cell with electrolyte strengthening substrate having a penetration portion
Methods of forming intermediate semiconductor device structures using spin-on, photopatternable, interlayer dielectric materials
Off-hook triggered cellular-landline conference call
Valve element