Robert L Redding

US Patent:

D3516156, Oct 18, 1994

Filed:

Jun 14, 1993

Appl. No.:

D/009488

Inventors:

Edmund H. James - Lexington KY
Peter J. Mendel - Lexington KY
Thomas E. Pangburn - Lexington KY
Robert C. Redding - Versailles KY

Assignee:

Lexmark International, Inc. - Greenwich CT

US Classification:

D18 55

US Patent:

D3669009, Feb 6, 1996

Filed:

Oct 6, 1994

Appl. No.:

D/029484

Inventors:

Thomas E. Pangburn - Lexington KY
Robert C. Redding - Versailles KY

Assignee:

Lexmark International, Inc. - Greenwich CT

US Classification:

D18 50

US Patent:

40591840, Nov 22, 1977

Filed:

Jan 3, 1977

Appl. No.:

5/756308

Inventors:

Robert Caldwell Redding - Versailles KY
Joe Larry Vaughan - Lexington KY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B41J 160

US Classification:

197 18

Abstract:

Disclosed is a selection apparatus for a printer of the single element type wherein the single print element is carried by a print carrier. The carrier includes at least one cylinder having a plurality of axially spaced apart camming surfaces thereon, the cylinder mounted for both axial and rotational movement. Each of a plurality of selection pins is engageable with one of the camming surfaces to impart a predetermined but differing axial motion of the cylinder upon engagement of one of the pins with its associated camming surfaces and rotation of the cylinder. Pin selection apparatus permits engagement of selected ones of the pins with an associated camming surface, the pin selection apparatus including pin motion inhibiting apparatus associated therewith so as to inhibit multiple pin selection with associated camming surfaces to thereby prevent any attempt at differential camming of the cylinder along its axis by more than one pin engaging more than one camming surface.