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. 21, 1995
Filed:
Jun. 07, 1993
F Miguel Joos, Pittsford, NY (US);
Kenneth J Ruschak, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
The present invention minimizes the effects of capillary and inertial forces on the film profile for a slide hopper, thereby making the film profile smooth and predictable even when the transition section is short. The invention enables improved coating uniformity over the main width of the coating and particularly at the edges. The slide hopper has a slide surface and a lip surface, with a transition surface connecting the two surfaces. The transition surface profile has a variable curvature that is zero at the first end, increases continuously to a maximum at point between the first and second ends and decreases continuously to zero at the second end.