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:
Jul. 27, 1993
Filed:
Aug. 17, 1992
Applicant:
Inventor:
Gene F Day, Hillsborough, CA (US);
Assignee:
Phoenix Precision Graphics, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355256 ; 118645 ; 118660 ; 346157 ;
Abstract
An electrostatic color printer or copier which uses a single pump for controlling fluid toner at low flow velocities and a separate pump or blower for an air jet used to expel fluid from common passages between applications of different colors. A full width toning applicator admits toner and air in a manner so that air limits flow of toner beyond the applicator. During a purging cycle, more air is admitted, forming an air jet which blasts surfaces and passages clear of liquid.