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. 30, 1990
Filed:
Dec. 19, 1988
Edward F Helinski, Johnson City, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The disclosure describes a passive lubrication system for use in a high speed print hammer mechanism to provide continuous lubrication to all print hammer elements. Channels are formed along the length of a pivot pin and filled with a porous material having a finer porosity than the sintered print hammer block serving as the principal reservoir. Fins located at each side of print hammer elements also are of the same porosity as the print hammer block and communicate lubricant to the material in the pivot pin channels. From the channels, lubricant is conveyed to the interface between each print hammer element and the pivot pin by capillary action.