Thomas N Lambert

US Patent:

61293474, Oct 10, 2000

Filed:

Feb 22, 1999

Appl. No.:

9/253973

Inventors:

Janice S. Brooks - Fairport NY
John D. Gramlich - Webster NY
Thomas P. Lambert - Webster NY
Dean Thomas - Webster NY
Michael J. Diehl - Rochester NY
James T. Kayko - Lima NY
Gregory N. Carpenter - Springwater NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B65H 330
B65H 352
B65H 108

US Classification:

271 22

Abstract:

A substrate feeding system, and printers that use such feeding systems, that includes a feed roll and a retard roll that form a nip, a nudger roll for advancing a substrate from a substrate stack toward the nip, and an entrance guide between the nudger roll and the nip. The entrance guide has a contact surface that forms an angle of more than 100. degree. with the direction of motion of the substrate. The entrance guide further including a top section over which the substrate moves as it advances into the nip. The entrance guide is beneficially pivotally mounted such that when a retard roll is removed the entrance guide pivots out of the way, and such that when a retard roll is in place the entrance guide moves into position.

US Patent:

58400036, Nov 24, 1998

Filed:

Apr 11, 1997

Appl. No.:

8/837027

Inventors:

Murray O. Meetze - Rochester NY
Kenneth G. Christy - Webster NY
Arthur H. Kahn - Cohocton NY
Thomas P. Lambert - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B31B 126
B30B 302

US Classification:

493405

Abstract:

A stalled sheet folding and flattening apparatus for reducing a sheet, stalled between a withdrawable and a fixed component of a cut sheet handling system of a sheet handling machine, into a shape and size suitably enabling reliable removal of the stalled sheet through even a relatively narrow gap between the withdrawable and fixed components of the sheet handling system. The stalled sheet folding and flattening apparatus includes a fixed component of the sheet handling system connected to a frame of the machine and having a first section of a sheet path; a withdrawable component of the sheet handling system mounted to the frame, and having a sheet flattening side defining a relatively narrow gap between a fixed surface within the machine and the withdrawable component, and including a second section of the sheet path adjoining the first section of the sheet path; and a sheet folding device mounted to the fixed component. The sheet folding device includes a generally U-shaped portion defining a slot and having a sheet contact surface forming a part, of an edge of the first section of the sheet path, for contacting and deflecting into a first fold, an edge of a sheet stalled across an interface between the first and the second sections of the sheet path, when the withdrawable component is being pulled out of the machine. The sheet contact surface of the U-shaped portion has a first radius of curvature defining a first concave surface for deflecting and folding the stalled sheet, and a second radius of curvature defining a second surface for guiding the folded sheet out of the slot.

US Patent:

57326207, Mar 31, 1998

Filed:

Apr 11, 1997

Appl. No.:

8/837028

Inventors:

Kenneth G. Christy - Webster NY
Murray O. Meetze - Rochester NY
Arthur H. Kahn - Cohocton NY
Thomas P. Lambert - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B30B 302
G03G 1500

US Classification:

100 80

Abstract:

In a sheet handling machine having a frame, and a cut sheet handling system including a sheet path, a stalled sheet pulling and crushing apparatus for reducing a sheet, stalled across an interface between a withdrawable and a fixed component of a cut sheet handling system into a shape and size suitably enabling reliable removal of the stalled sheet through a relatively narrow gap between the withdrawable and fixed components of the sheet handling system. The stalled sheet pulling and crushing apparatus includes a fixed component of the sheet handling system connected to a frame of the machine and having a first sheet gripping nip forming a first section of a sheet path; a withdrawable component of the sheet handling system mounted movably to the frame, and having a sheet flattening side defining a relatively narrow gap between a fixed surface within the machine and the withdrawable component, the withdrawable component including a second sheet gripping nip forming a second section of the sheet path for adjoining the first section of the sheet path; and a movable sheet pulling device comprising a rotatable roller mounted to the fixed surface and projecting partially into the narrow gap for contacting and rotatably applying a sheet pulling force on the stalled sheet in a first direction to pull an end of the stalled sheet out of the first sheet gripping nip, as the withdrawable component is being pulled in a second and different direction relative to the first direction. The rotatable roller as mounted cooperating with the sheet crushing side of the withdrawable component to accordion fold and crush the pulled out stalled sheet without a tear, into a shape and size suitably enabling reliable removal of the stalled sheet through the narrow gap.

US Patent:

58878688, Mar 30, 1999

Filed:

Dec 9, 1993

Appl. No.:

8/163635

Inventors:

Thomas P. Lambert - Webster NY
Gregory A. Ludgate - Ontario NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B65H 2900

US Classification:

271186

Abstract:

An apparatus for moving a sheet bi-directionally. The apparatus includes a first roller and a second roller. A drive system is associated with the rollers to drive the first roller in a first direction. The drive system is adapted to rotate the second roller simultaneously with the first roller in the same direction as the first roller or in the opposite direction thereto. In addition, the drive system is capable of idling the second roller so as to adjust the timing of the sheet as it moves to subsequent processing stations within a printing machine.