Halm Industries Co., Inc.

W+d North America Inc.

Donald F Lyon

Roger D Star

Mario Lisena

Karl Hansen

Greg Hudson

Michael I Tilman

John Lampitt

Salvatore DiRosa

A printable substrate transfer device for a printing machine which includes a platen that has openings therein in fluid communication with a vacuum source. A transport belt is movable over the platen in a process direction. The transport belt allows air to pass there through. A hold down plate is disposed above the transport belt. A stationary porous vacuum substrate is disposed between the hold down plate and the transport belt. The vacuum substrate and transport belt form a path there between through which a printable substrate travels. The hold down plate exerts a force toward the transport belt upon operation of vacuum passing through the platen. The vacuum substrate limits the negative pressure between the hold down plate and the transport belt, such that a force exerted by the hold down plate onto the substrate is limited.

Vacuum transfer device for envelope printer

A printing press including a frame and a central impression drum rotatably supported on the frame. A plurality of first side printing stations is circumferentially spaced about the central impression drum and in communication therewith. Each of the plurality of printing first side printing stations is adapted to print an image on a first side of a substrate. A perfecting printing station is disposed at a position about the central impression drum. The perfecting printing station includes a multi-purpose drum having a substrate retainer for securing the substrate thereto. The multi-purpose drum forms an impression cylinder and is in communication with an image transfer cylinder for imparting an image on a second side of the substrate. An ink fixing unit is disposed between the first side printing stations and the perfecting station. The ink fixing unit fixes the image on the first side of the substrate prior to the image being imparted on the second side of the substrate by the perfecting station.

Printing press with perfecting station

Growing community of inventors

Glen Head, NY, United States of America

Donald F Lyon