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:
Jul. 18, 1978
Filed:
Jul. 30, 1976
Applicant:
Inventors:
Donald C Solmon, Newburyport, MA (US);
Donald J Lennon, Acton, MA (US);
Assignee:
Epp Corp., Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
346153 ; 118658 ; 346 741 ;
Abstract
A non-impact printer having a moving support for supplying particles of magnetic ink. The ink particles are deposited upon the support and subjected to a magnetic field to produce a bead of the particles that rotates as the support moves toward a print position. A number of the particles detach from the bead and remain on the support as mutually spaced aggregates of irregular height. An electrical field of short duration, established in the print position between the particles and a shaped print electrode, charges the particles and attracts them to an intervening recipient sheet.