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
Cosmetic/dermatological compositions comprising naphthoic acid compounds and polyurethane polymers
Liquid crystal display and method of driving the same
Catalyst compositions for hydroformylation reaction and hydroformylation process using the same
Method and system for expanding axial coverage in iterative reconstruction in computer tomography (CT)
Method for computing an energy efficient route
Virtual physician acute myocardial infarction detection system and method
Low temperature pressure chamber unit, magnetic resonance device with a low temperature pressure chamber unit, and an attachment method to attach at least one add-on unit to an external housin
  Randomly Featured Patents
Memory device employing multilevel storage circuits
Tank weigh module with excess motion restraint
High capacity optical waveguide fiber
Carrier detection circuit and infrared ray remote control receiver
Textile fibrous cleaning structures
Sill plate
Apparatus for manufacturing concrete masonry units
Semiconductor integrated circuit, manufacturing method thereof, and semiconductor device using semiconductor integrated circuit
Liquid graphite
Instrument panel having cover with reflection-reduction layer and method of making cover