Mark V Donovan

US Patent:

6530319, Mar 11, 2003

Filed:

Sep 10, 2001

Appl. No.:

09/950125

Inventors:

Michael Elkis - Columbia MD
Mark R. Donovan - Severn MD

Assignee:

Ward Holding Company, Inc. - Wilmington DE

International Classification:

B41F 500

US Classification:

101216, 101136, 101348, 1013491, 101479

Abstract:

A mounting system is disclosed for removably mounting rollers and cylinders in a machine for quick and easy removal and replacement by other rollers and cylinders. The mounting system provides for rapid separation of the journal from the roller or cylinder so that only the roller or cylinder is removed, and the mounting system has particular applicability with respect to ink rolls in printing machines.

US Patent:

6591749, Jul 15, 2003

Filed:

Aug 24, 2001

Appl. No.:

09/938340

Inventors:

Michael Elkis - Columbia MD
Mark R. Donovan - Severn MD

Assignee:

Ward, Inc. - Jefferson City MO

International Classification:

B41F 1324

US Classification:

101232, 101233, 1014241, 271276, 271197, 1986891

Abstract:

A multistage printing machine is disclosed with a vacuum conveyor between stages, and in which supplemental air is provided adjacent at least one printing cylinder.

US Patent:

55646930, Oct 15, 1996

Filed:

Feb 1, 1995

Appl. No.:

8/384312

Inventors:

Mikhail Elkis - Columbia MD
James M. Kowalewski - Baltimore MD
Mark R. Donovan - Baltimore MD
John H. P. Andrews - Monkton MD

Assignee:

Ward Holding Company, Inc. - Wilmington DE

International Classification:

B65H 502

US Classification:

271276

Abstract:

A paperboard processing machine is disclosed for printing and otherwise processing sheets of paperboard, such as corrugated container blanks, and in which the sheets are conveyed from one section of the machine to another section by one or more vacuum transfer systems. Each vacuum transfer system comprises an enclosure which is closed by a closure plate for creating a subatmospheric pressure, which pressure forces the sheets into frictional engagement with the reaches of a plurality of conveyor belts whereby the sheets are transported without contact of the opposite side of the sheet not contacted by the conveyor reach. In one embodiment the closure plate is imperforate, while in the second embodiment the closure plate is provided with a limited number of apertures for providing a secondary flow of air upwardly against the bottom surfaces of the paperboard sheets. In addition, in one preferred embodiment, a plurality of slots are provided in the closure plate for reducing the inflow of air at the entrance and exit ends of the transfer section.