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. 07, 2006
Filed:
Oct. 21, 2002
Rebecca Lawson, Florence, SC (US);
James Lowry, Florence, SC (US);
Wylie H. Hodge, Hartsville, SC (US);
Rebecca Lawson, Florence, SC (US);
James Lowry, Florence, SC (US);
Wylie H. Hodge, Hartsville, SC (US);
Sonoco Development, Inc., Hartsville, SC (US);
Abstract
A self-venting cartridge () for dispensing an extrudable fluid such as ink. The cartridge () comprises a cylindrical body () for holding the fluid and a plunger () for forcing the fluid through a nozzle. The cylindrical body () is formed of a wound material and lined internally with a liner material that overlaps itself to form a raised area () that is slightly thicker than the surrounding area. The plunger () comprises a slightly convex surface () and a sidewall () that forms a snug fit with the cylindrical body (). The plunger sidewall () and raised area () define a channel (A) through which air is automatically vented when the plunger () is inserted into the fluid-filled cartridge ().