Sheet separator dam with buckling element

US6139007A · kind A · utility

Assignee

• Lexmark International, Inc. · US

Inventors

• Daniel Paul Cahill · Verona, US
• Robert Joseph Feldman · Midway, US
• Sishuang Li · Lexington, US
• Adam Gordon Price · Carmel, US
• Richard Gayle Snapp · Cairo, US
• Scott Stephen Williams · Lexington, US
• Curtis Duane Woodson · Georgetown, US

Key dates

• Filing date: Oct 22, 1999
• Grant date: Oct 31, 2000
• Expiry date: Oct 22, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2405/1136
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A dam has a slat disposed therein with protrusions along its sheet-engaging surface. If more than one sheet is fed from a stack to the dam, the sheets strike the slat surface and protrusions, causing the sheets to buckle and then separate from each other.