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:
Jun. 16, 1998
Filed:
Mar. 04, 1994
Applicant:
Inventors:
Anthony Bruce Castro, Herrin, IL (US);
Phillip Leroy Laffoon, Herrin, IL (US);
James Patrick Lawhorn, DuQuoin, IL (US);
Gary Todd Suits, Marion, IL (US);
Assignee:
Diagraph Corporation, Herrin, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 94 ; 417 442 ;
Abstract
An ink jet printing system having an ink accumulator holding a supply of ink for delivery under pressure to printheads of the system, the volume of the supply decreasing as ink is delivered to the printheads, and a pump operable intermittently to pump ink from a supply to the accumulator when the volume in the accumulator decreases to a lower limit, operation of the pump being terminated when the volume in the accumulator increases to an upper limit.