US Patent 7431443 Ink reservoir with pressure regulating valve
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Patent Inventor Names
Akira Nakazawa0
Garry Raymond Jackson0
Kia Silverbrook0
Norman Michael Berry0
Paul Ian Mackey0
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Patent abstract
A printer with an inkjet printhead, the printer comprising: an ink reservoir; and, a pressure regulating valve for establishing fluid communication between the printhead and the ink reservoir; wherein, the pressure regulating valve is biased closed and opens in response to a predetermined ink pressure difference across the valve.
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US Patent 07431443 Ink reservoir with pressure regulating valve US Patent 7431443 Ink reservoir with pressure regulating valve
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Patent Number
074314430
Patent Number
74314430
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Patent Jurisdiction
Patent Number
074314430
Date of Patent
October 7, 2008
0Patent Application Number
112938420
Date Filed
December 5, 2005
0Official Website
Patent Primary Examiner
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US Patent 07431443 Ink reservoir with pressure regulating valve
Infobox
Is a
Patent jurisdiction
Patent number
07431443
Date of patent
October 7, 2008
Patent application number
11293842
Date Filed
December 5, 2005
Patent primary examiner
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