U.S. patent number D638,522 [Application Number D/366,130] was granted by the patent office on 2011-05-24 for seal ring for stern tube. This patent grant is currently assigned to W rtsil Japan Ltd.. Invention is credited to Motofumi Inaba, Minoru Takayasu, Hisashi Yoshida.
United States Patent | D638,522 |
Yoshida , et al. | May 24, 2011 |
Inventors: | Yoshida; Hisashi (Toyama, JP), Inaba; Motofumi (Toyama, JP), Takayasu; Minoru (Toyama, JP) |
---|---|
Assignee: | W rtsil Japan Ltd.
(JP) |
Appl. No.: | D/366,130 |
Filed: | July 20, 2010 |
Current U.S. Class: | D23/269 |
Current International Class: | 2301 |
Field of Search: | ;D23/262,269 ;277/351-359,572,563,504 |
3064984 | November 1962 | Mickle et al. |
3565447 | February 1971 | Joachim et al. |
3645546 | February 1972 | Kaufman et al. |
4337956 | July 1982 | Hopper |
4461487 | July 1984 | Matsumoto |
4478463 | October 1984 | Takai et al. |
D289078 | March 1987 | Vassallo et al. |
D347885 | June 1994 | Gustafsson |
D374710 | October 1996 | Gustafsson |
D379493 | May 1997 | Woods |
D437034 | January 2001 | Stout, Jr. |
D447223 | August 2001 | Mattsson et al. |
D515675 | February 2006 | Tremoulet et al. |
D534253 | December 2006 | Sandman et al. |
D556867 | December 2007 | Darce |
2005/0035554 | February 2005 | Roberts et al. |
2009/0206553 | August 2009 | Kanzaki |
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