The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 1995
Filed:
Aug. 12, 1993
Michel L Bayard, Portland, OR (US);
Donald P Chitwood, Portland, OR (US);
Other;
Abstract
A method for modifying a phase change ink jet head by applying a non-wetting material to the discharge surface is provided such that an ink contact angle between about 80.degree. and about 90.degree. is maintained on the discharge surface after continued exposure to molten phase change inks. Furthermore, the method provided ensures that the layer of non-wetting coating material does not chip or wear off during the normal operation of the ink jet printer. In this way, the ink jet printer is capable of accurate placement of phase change ink drops without increased surface wetting and off-axis shooting that traditionally occurs after continued use.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile