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. 08, 1986
Filed:
Aug. 02, 1984
Applicant:
Inventor:
Leonard G Rich, West Hartford, CT (US);
Assignee:
Metromedia, Inc., Secaucus, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461 / ; 310369 ; 310328 ;
Abstract
An ink jet head for ejecting drops of ink in an ink jet printing system is designed for easy disassembly for cleaning and can readily be made in different sizes including one capable of ejecting relatively large volume drops of heavily pigmented and relatively viscous ink as may be used for printing outdoor billboards or other large scale graphics. The head also includes a means for reducing the size of or entirely eliminating any blob of ink which may form over the ejection port at low actuating frequencies, thereby making the velocity and other characteristics of the ejected drops more uniform over the full range of operating frequencies.