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:
Feb. 10, 2004
Filed:
Apr. 29, 2002
Applicant:
Inventors:
Deverakonda S. Sarma, Danbury, CT (US);
James E. Fox, Stratford-on Avon, GB;
Alan L. Hudd, Nuthampsted, GB;
Thyagaraja Sarada, Horsham, PA (US);
Brian Salisbury, Middlebury, CT (US);
Eda E. Wilson, Stamford, CT (US);
Assignee:
Illinois Tool Works Inc, Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/01 ;
U.S. Cl.
CPC ...
B41J 2/01 ;
Abstract
Methods for reducing cavitation in impulse or drop on demand ink jetting devices are provided. Impulse ink jet compositions including antioxidant are also provided which are suitable for printing clear, well-defined alphanumeric text or low spread, narrow bar width bar codes on porous substrates such as Kraft paper or corrugated cardboard. The antioxidant additive lowers the dissolved oxygen level in the ink, thereby enhancing the jetting performance of the printhead.