Electrostatic printer and imaging process utilizing dehumidified air
CA 1254262 A · Owner: Markem Corporation · Inventors: Walter, Graham D.; Moore, Robert A.; Boyer, Alan H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION:, ELECTROSTATIC PRINTER AND IMAGING PROCESS UTILIZING DEHUMIDIFIED AIR, ABSTRACT OF THE DISCLOSURE: An electrostatic print head system is disclosed which comprises an ion modulated electrostatic print head a means for, supplying unheated dehumidified air having a relative humidity of less than about 20 percent at or near ambient temperature and a, means for directing the dehumidified air at near or through the, print head. The print head may comprise a modulated aperture board having a plurality of selectively controlled apertures therein and an ion generator for providing ions for electrostatic projection through the apertures. The electrostatic print head system may …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 16, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 16, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.