Daniel M Petersen

Author:

Daniel C. Petersen

ISBN #:

0070280614

US Patent:

6969148, Nov 29, 2005

Filed:

Jul 31, 2001

Appl. No.:

09/919701

Inventors:

Scott D. Sturgeon - Vancouver WA, US
Jeffrey T. Hendricks - Camas WA, US
David C. Johnson - Portland OR, US
Charles R. Steinmetz - Corvallis OR, US
Daniel W. Petersen - Philomath OR, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J002/01

US Classification:

347 49

Abstract:

An on-axis ink reservoir that is pivotally secured to the carriage of an inkjet printer thereby defining an engaged position, in which the ink reservoir is in fluid communication with a printhead secured to the carriage, and an open position, in which the ink reservoir pivots away from the printhead to allow easy access to the printhead without the need to remove the ink reservoir from the carriage. Preferably, the ink reservoir is detachably secured to an ink-reservoir mounting portion, the printhead is detachably secured to a printhead mounting-portion, and these two mounting portions are pivotally secured together. More preferably, the ink-reservoir mounting portion includes a plurality of ink reservoirs, and the printhead mounting-portion includes a plurality of printheads. A latching mechanism is provided to operably secure the two mounting portions together in the engaged position.

US Patent:

D538847, Mar 20, 2007

Filed:

Sep 24, 2003

Appl. No.:

29/190698

Inventors:

Peter G. Hwang - Vancouver WA, US
Daniel W. Petersen - Philomath OR, US
Charles R. Steinmetz - Corvallis OR, US
Lisa M. Hanson - Vancouver WA, US
Daniel R. Dwyer - BattleGround WA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

1802

US Classification:

D18 56, 347 86

US Patent:

D540376, Apr 10, 2007

Filed:

Jun 27, 2005

Appl. No.:

29/233149

Inventors:

Peter G. Hwang - Vancouver WA, US
Daniel W. Petersen - Philomath OR, US
Charles R. Steinmetz - Corvallis OR, US
Lisa M. Hanson - Vancouver WA, US
Daniel R. Dwyer - BattleGround WA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

1802

US Classification:

D18 56

US Patent:

D545981, Jul 3, 2007

Filed:

May 10, 2006

Appl. No.:

29/259574

Inventors:

Jeffery C. Main - Portland OR, US
Brain C. Matlock - Portland OR, US
Daniel N. Petersen - La Center WA, US

Assignee:

Kaper II, Inc. - Kelso WA

International Classification:

2606

US Classification:

D26 28

US Patent:

8573741, Nov 5, 2013

Filed:

Oct 30, 2009

Appl. No.:

12/609626

Inventors:

Alok Sharan - Lake Oswego OR, US
Thomas Novet - Corvallis OR, US
Daniel W. Petersen - Philomath OR, US
John Breen - Kildare, IE

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

B41J 2/14
B41J 2/16
B21D 53/76

US Classification:

347 47, 347 50, 298901

Abstract:

A fluid-ejection assembly includes a die, a substrate, ribs, and adhesive. The die has nozzles through which fluid is ejected. The substrate provides the fluid to the die. The ribs are within the substrate, and have rounded corners. The rounded corners are adapted to provide a predetermined characteristic. The adhesive affixes the die to the substrate.