Seal ring for stern tube
Yoshida , et al. May 24, 2
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 |
Seal ring for stern tube
Claims
CLAIM We claim the ornamental design for a seal ring for a stern tube, as shown and described.
| 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 |
References Cited [Referenced By]
U.S. Patent Documents
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| D374710 | October 1996 | Gustafsson |
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| D437034 | January 2001 | Stout, Jr. |
| D447223 | August 2001 | Mattsson et al. |
| D515675 | February 2006 | Tremoulet et al. |
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| 2005/0035554 | February 2005 | Roberts et al. |
| 2009/0206553 | August 2009 | Kanzaki |
Assistant Examiner: Goodman; Eric L
Attorney, Agent or Firm: Rossi, Kimms & McDowell LLP
Description
FIG. 1 is a perspective view of a seal ring for a stern tube.
FIG. 2 is a right-side view of the seal ring, the left-side view being a mirror image of the right-side view, and the top and bottom view being identical thereto.
FIG. 3 is an enlarged cross-sectional view taken along line 3--3 of FIG. 5.
FIG. 4 is a front view of the seal ring; and,
FIG. 5 is a rear view of the seal ring.
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