The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 2005
Filed:
Nov. 19, 2002
James Paul Drummond, Georgetown, KY (US);
Kin-ming Kwan, Lexington, KY (US);
Ganesh Vinayak Phatak, Lexington, KY (US);
Jon Brock Whitney, Georgetown, KY (US);
James Paul Drummond, Georgetown, KY (US);
Kin-Ming Kwan, Lexington, KY (US);
Ganesh Vinayak Phatak, Lexington, KY (US);
Jon Brock Whitney, Georgetown, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
In a system for laser welding work pieces along a collapsing weld interface, methods and apparatus include providing welding pads and/or stop projections on either or both of the work pieces to control the manner or amount of collapse. Preferably, the stop projections exist a separation distance from the weld interface while the welding pads exist at and form a portion of the weld interface. Buffers are taught between the weld interface and stop projection. The work pieces may comprise inkjet printhead lids and bodies. In another aspect, the invention teaches methods of laser welding inkjet printhead lids and bodies according to whether the inkjet printhead body embodies a mono or color ink body type and especially includes selective control of one or more laser light sources to illuminate the inkjet printhead lid in a specific pattern of light.