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:
Mar. 18, 1980
Filed:
Jan. 11, 1978
Applicant:
Inventor:
Walter Sakmann, Herrenberg, DE;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400124 ; 101 9305 ; 310328 ;
Abstract
A matrix printer with piezoelectrically driven printing needles is described in which an electrically controlled piezocrystal arrangement transfers upon its expansion, its change of length to a buckling spring. Coupled to the buckling compression column spring is a printing needle which, upon the deflection of the buckling spring, is driven in the printing direction.
Sakmann, Walter. (1980). Matrix printer with piezoelectrically driven printing needles (U.S. Patent No. 4193703). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4193703
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile