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. 07, 1983
Filed:
Jun. 26, 1981
George W Graham, North Kingstown, RI (US);
William E Tucker, Harmony, RI (US);
A. T. Cross Company, Lincoln, RI (US);
Abstract
The present invention relates to an improvement in a fountain pen in which the fountain pen is provided with a writing point feed bar and a casing for supporting the writing mechanism, there being a partition located adjacent to the feed bar and having a cylindrical boss extending away therefrom. The cartridge is provided with a double lip interior open end which is adapted to fit over the boss and conduct the ink into the bore that extends through the boss that communicates with the feed bar. The tapered nose end of the cartridge snugly fits into the bore of the casing adjacent the boss that communicates with the feed bar. This not only insures that the lip sealing is forced radially inward and is not disturbed, by also insures that the end of the cartridge engages the partition wall for sealing and the interior wall of the casing for additional sealing.