Resumes
Resumes
Donald Colglazier
View pageLocation:
United States
Donald Colglazier Phones & Addresses
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103 Baylor Dr, Longmont, CO 80503 (303) 772-8359
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103 Baylor Dr, Longmont, CO 80503
Publications
Us Patents
Servo-Controlled Automatic Document Feeder
View pageUS Patent:
44575068, Jul 3, 1984
Filed:
Sep 16, 1981
Appl. No.:
6/302877
Inventors:
William H. Ashbee - Boulder CO
Mark A. Beran - Niwot CO
Donald F. Colglazier - Longmont CO
Donovan M. Janssen - Boulder CO
John P. Mantey - Boulder CO
Ronald J. Martin - Loveland CO
Gerald P. Patch - Boulder CO
Larry E. Rittenhouse - Boulder CO
James A. Valent - Longmont CO
Mark A. Beran - Niwot CO
Donald F. Colglazier - Longmont CO
Donovan M. Janssen - Boulder CO
John P. Mantey - Boulder CO
Ronald J. Martin - Loveland CO
Gerald P. Patch - Boulder CO
Larry E. Rittenhouse - Boulder CO
James A. Valent - Longmont CO
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
B65H 522
B65H 3112
B65H 3112
US Classification:
271 31
Abstract:
A servo-controlled recirculating automatic document feeder (RADF) includes a plurality of independently driven document transport devices. A picker mechanism separates documents in seriatim from a stack. An entry turnaround transport device buffers and delivers picked documents to a platen transport device for exposure. After exposure, the document is transported along a simplex or duplex path for duplex or simplex copying. The document is then buffered in an exit turnaround transport device and is subsequently returned to the stack. Each transport device is independently driven by a motor and a closed-loop servo. A common reference oscillator generates source signals for the servo-loops. A microcomputer operates on the source signals and generates reference signals for driving the transport devices.
Combing Wheel Feed Nip With Second Sheet Restraint
View pageUS Patent:
41132459, Sep 12, 1978
Filed:
Apr 18, 1977
Appl. No.:
5/788570
Inventors:
Donald Francis Colglazier - Longmont CO
John Leslie Fallon - Longmont CO
Ernest Paul Kollar - Longmont CO
Fred Ralph Mares - Boulder CO
John Leslie Fallon - Longmont CO
Ernest Paul Kollar - Longmont CO
Fred Ralph Mares - Boulder CO
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
B65H 352
US Classification:
271 10
Abstract:
A multibin, cut-sheet xerographic copier capable of operating in a simplex or a duplex copy mode, wherein sheets are fed from a selected sheet stack, one at a time, to the copier's transfer station, by a sheet feeding means which includes a combing wheel. The combing wheel shingles the top few sheets, and particularly the single top sheet's leading edge, to a normally open feed nip. This nip is closed by copier logic to feed the top sheet to the transfer station. The feed nip comprises a fixed position, continuously rotating feed roller adapted to cooperate with the top surface of the top sheet. A solenoid controlled, nip-closing, composite pad is pivotable upward to press the top sheet against the feed roller. This composite pad includes a first low friction, nonresilient pressure pad cooperating with the feed roller, and a second, reduced thickness, resilient pad cooperating with the leading edge of the shingled sheets under the top sheet. A spring biases all shingled sheets away from the feed roller and toward the solenoid controlled composite pad.
Multibin, Cut-Sheet Xerographic Copier
View pageUS Patent:
40895165, May 16, 1978
Filed:
Apr 18, 1977
Appl. No.:
5/788471
Inventors:
Donald Francis Colglazier - Longmont CO
John Leslie Fallon - Longmont CO
Ernest Paul Kollar - Longmont CO
Fred Ralph Mares - Boulder CO
John Leslie Fallon - Longmont CO
Ernest Paul Kollar - Longmont CO
Fred Ralph Mares - Boulder CO
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
B65H 122
US Classification:
271 9
Abstract:
A multibin, cut-sheet xerographic copier capable of operating in a simplex or a duplex copy mode, wherein sheets are fed from a selected sheet stack, one at a time, to the copier's transfer station, by a sheet feeding means which includes a combing wheel. The combing wheel shingles the leading edge of the stack's top sheet to an open feed roller nip, to be sensed thereat by a pneumatic sensor. Sensing of this leading edge causes the combing wheel to be lifted off the stack. Subsequently, at a time determined by the copier's control logic, the drive nip closes to thereby feed the top sheet to the copier's paper registration gate, and then to its transfer station. As soon as this sheet's trailing edge has cleared the pneumatic sensor, and the drive nip has opened, the next sheet is staged at the shingled position, in the open drive nip. Means are provided to deshingle the stack when the copier's paper supply drawer is opened, as for reloading paper. The combing wheel, drive nip and associated assemblies are supported by a single frame member, and are thus removable as a unit for replacement or repair.
Cut-Sheet Xerographic Copier Having Combing Wheel Sheet Feed And A Duplex Bin With An Adjustable Bottom-Of-The-Bin Pad
View pageUS Patent:
41757416, Nov 27, 1979
Filed:
Dec 19, 1977
Appl. No.:
5/861914
Inventors:
Donald F. Colglazier - Longmont CO
John L. Fallon - Longmont CO
George P. Kimble - Longmont CO
Fred R. Mares - Boulder CO
John L. Fallon - Longmont CO
George P. Kimble - Longmont CO
Fred R. Mares - Boulder CO
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
B65H 306
US Classification:
271 31
Abstract:
A multibin, cut-sheet xerographic copier capable of operating in a simplex or a duplex copy mode, wherein sheets are fed from a selected sheet stack, one at a time, to the copier's transfer station, by a sheet feeding means which includes a combing wheel. The combing wheel shingles the leading edge of the stack's top sheet to an open feed roller nip, to be sensed there by a pneumatic sensor. Sensing of this leading edge causes the combing wheel to be lifted off the stack. Subsequently, at a time determined by the copier's control logic, the drive nip closes to thereby feed the top sheet to the copier's paper registration gate, and then to its transfer station. As soon as this sheet's trailing edge has cleared the pneumatic sensor, and the drive nip has opened, the next sheet is staged at the shingled position, in the open drive nip. Side-one copied sheets, of intended duplex copies, are automatically stacked in a duplex bin. The bottom of the duplex bin includes a flat, resilient bottom-of-the-bin pad.
Document Feeder Electronic Registration Gate
View pageUS Patent:
44550189, Jun 19, 1984
Filed:
May 11, 1981
Appl. No.:
6/262727
Inventors:
Donald F. Colglazier - Longmont CO
Donovan M. Janssen - Boulder CO
John P. Mantey - Boulder CO
James A. Valent - Longmont CO
Donovan M. Janssen - Boulder CO
John P. Mantey - Boulder CO
James A. Valent - Longmont CO
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
B65H 920
US Classification:
271227
Abstract:
A sheet registration apparatus for positioning sheets in a registered position on a work surface such as the document platen of a convenience copier/duplicator machine. The apparatus includes a bidirectional servo-controlled sheet transport for conveying the sheet over the work surface. A sheet sensing device is disposed within the path of sheet travel. A controller monitors the sensing device and activates a position control routine following the occurrence of a predetermined level change in the signal generated by the sensing device. At the end of the position control routine, the transport is stopped thereby positioning the sheet in the registration zone. The apparatus enables sheet registration for a machine operating in a duplex and/or simplex mode. The apparatus further enables registration at any point on the document platen.
Copying Method And Apparatus
View pageUS Patent:
49909673, Feb 5, 1991
Filed:
Aug 21, 1989
Appl. No.:
7/396205
Inventors:
Donald F. Colglazier - Longmont CO
James H. Hubbard - Boulder CO
Michael L. Morris - Fruit Heights UT
Robert T. Ritchie - Boulder CO
James H. Hubbard - Boulder CO
Michael L. Morris - Fruit Heights UT
Robert T. Ritchie - Boulder CO
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G03G 1500
US Classification:
355323
Abstract:
An electrophotographic copying apparatus includes a multi-function document feeder for feeding original document sheets to a platen viewing station for copying. The document feeder selectively provides (1) semiautomatic document feeding (SADF), (2) automatic document feeding (ADF), (3) recirculating automatic document feeding (RADF), and (4) manual placement of a document on the platen. A multi-function output copy module is provided for holding copies produced by the copying apparatus. The output module proivdes (1) a collator section comprising a vertical stack of collator bins, the unobstructed top bin of which also comprises (2) an exit tray, and (3) a large capacity exit bin that is located under the bottom one of the collator bins. The mode of operation of the output module is automatically determined in accordance with (1) the manner in which the operator elects to use the document feeder, and (2) the copier features, such as the number of copies or copy sets requested, use of a stapler, and/or job queuing, that are selected by the operator. In an embodiment of the invention, when a number of copy sets are to be made from an original set, the original set is first fed to the platen using the ADF.
Copier Having Removable Paper Feed Module
View pageUS Patent:
41650697, Aug 21, 1979
Filed:
Aug 1, 1977
Appl. No.:
5/820988
Inventors:
Donald F. Colglazier - Longmont CO
Ernest P. Kollar - Longmont CO
Fred R. Mares - Boulder CO
Ernest P. Kollar - Longmont CO
Fred R. Mares - Boulder CO
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
B65H 100
US Classification:
271162
Abstract:
An electrophotographic copier having a cut sheet, two-bin, paper feed module which is selectively secured in copier-operative position, whereat it is operable to feed sheets to the copier's paper aligner and transfer station, or is removable to a copier-inoperative position whereat the module remains operative to feed sheets for the purpose of examination, analysis, and/or repair and maintenance of the paper feed module.
Bottom-Up Stacker
View pageUS Patent:
44562357, Jun 26, 1984
Filed:
Jul 9, 1979
Appl. No.:
6/056170
Inventors:
Donald F. Colglazier - Longmont CO
Ernest P. Kollar - Longmont CO
Ernest P. Kollar - Longmont CO
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
B65H 130
B65H 2924
B65H 3112
B65H 2924
B65H 3112
US Classification:
271 31
Abstract:
Documents are inserted into a bin beneath a document stack already in the bin. An air bearing holds the document stack above the floor of the bin. A lifting mechanism lifts the stack along one edge so that a document is driven between the last sheet in the stack and the floor of the bin. A selectively activated drive means positioned on the floor of the bin advances the document into proper registration into the bin. Documents can be fed from the top of the stack simultaneously with the bottom stacking operation.