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David G. Mahoney
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Londonderry, NH, US
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic fluid seal with precise control of fluid volume at each se...
Patent number
9,816,617
Issue date
Nov 14, 2017
Rigaku Innovative Technologies, Inc.
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Magnetic fluid seal with precise control of fluid volume at each se...
Patent number
9,163,732
Issue date
Oct 20, 2015
Rigaku Innovative Technologies, Inc.
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Magnetic fluid seal with precise control of fluid volume at each se...
Patent number
8,430,409
Issue date
Apr 30, 2013
Rigaku Innovative Technologies, Inc.
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Magnetic fluid seal with centering of bearing and shaft by compress...
Patent number
8,382,118
Issue date
Feb 26, 2013
Rigaku Innovative Technologies, Inc.
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Rotary motion feedthrough device
Patent number
6,199,867
Issue date
Mar 13, 2001
Rigaku/USA, Inc.
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
MAGNETIC FLUID SEAL WITH PRECISE CONTROL OF FLUID VOLUME AT EACH SE...
Publication number
20150300501
Publication date
Oct 22, 2015
Rigaku Innovative Technologies Inc.
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
MAGNETIC FLUID SEAL WITH PRECISE CONTROL OF FLUID VOLUME AT EACH SE...
Publication number
20140291935
Publication date
Oct 2, 2014
Rigaku Technologies, Inc.
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
MAGNETIC FLUID SEAL WITH CENTERING OF BEARING AND SHAFT BY COMPRESS...
Publication number
20100090413
Publication date
Apr 15, 2010
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
MAGNETIC FLUID SEAL WITH PRECISE CONTROL OF FLUID VOLUME AT EACH SE...
Publication number
20090127794
Publication date
May 21, 2009
David G. Mahoney
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...