Raymond J Ballard

US Patent:

41935594, Mar 18, 1980

Filed:

Apr 7, 1978

Appl. No.:

5/894550

Inventors:

Raymond M. Ballard - Lancaster OH

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

B65H 1702

US Classification:

242 671R

Abstract:

A web winding assembly of rolls is disclosed. The assembly includes a winding roll and a layon roll. The layon roll is of constant circumference with a flexible surface and is characterized by having an incompressible core, a volumetrically compressible resilient cushion element on the core, and a flexible, inextensible, outer covering on the cushion element. The winding assembly is used in film web handling operations to make windup packages of film web having improved surface hardness character and reduced tendency to telescope.

US Patent:

48505455, Jul 25, 1989

Filed:

Dec 8, 1983

Appl. No.:

6/559375

Inventors:

Raymond M. Ballard - Lancaster OH
Albert W. Forrest - Chillicothe OH

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

B65H 1814
B65H 1826

US Classification:

242 671R

Abstract:

An apparatus for winding rolls of thin, wide film. High quality rolls free from circumferential ridges are wound by pressing a segmented bowed roll against a winding roll.