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. 16, 1992
Filed:
Mar. 20, 1991
Angus H Whitaker, Monte Sereno, CA (US);
Ronald W Franck, Garden Grove, CA (US);
Calcomp Inc., Anaheim, CA (US);
Abstract
This invention is a two-color unitary application and vacuuming head for a liquid toner electrostatic printing system. There is a body having three planar faces angularly displaced from one another concentrically about a pivot point, one of the faces being a first toner face having openings therein communicating with a first network of toner passages in the body, a second of the faces being a second toner face having openings therein communicating with a second network of toner passages in the body, a third of the faces being a vacuum face also having individual openings therein communicating respectively with a third network of toner passages in the body and with a fourth network of toner passages in the body. A pivot pin supports the body for pivotal movement about the pivot point and there is apparatus for pivoting the body about the pivot pin between a first position with the first toner face in contact with a printing media being printed upon by the printing system, a second position with the vacuum face in contact with the printing media, and a third position with the second toner face in contact with the printing media.