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:
Jan. 02, 1979
Filed:
Jan. 05, 1977
Okun Kwan, Trumbull, CT (US);
Bunker Ramo Corporation, Oak Brook, IL (US);
Abstract
The present mechanism includes a vertically moving platform which raises and lowers a printing ribbon relative to the moving printhead of a printer. When the printhead is at its home position, the platform is at its raised position thereby locating the lowermost portion of the ribbon at the printhead. As the printhead starts to move during its printing cycle, the platform will progressively lower so that when the printhead is at the center of its travel, the platform will be in its lowered position, thus locating the uppermost portion of the ribbon at the printhead. As the printhead continues to the end of its travel, the platform will end up at its raised position thus locating the lowermost portion of the ribbon at the printhead. This raising and lowering of the platform presents the ribbon to the printhead in overlapping arched patterns, thereby utilizing the full width of a printing ribbon.