Seal for a joint or juncture – Seal between fixed parts or static contact against... – Contact seal between parts of internal combustion engine
Reexamination Certificate
2005-05-17
2005-05-17
Pickard, Alison (Department: 3676)
Seal for a joint or juncture
Seal between fixed parts or static contact against...
Contact seal between parts of internal combustion engine
Reexamination Certificate
active
06893024
ABSTRACT:
A bolt retainer mechanism in one layer of a multiple-layered steel (MLS) gasket, includes an aperture defining a radially inwardly extending tabs. In one embodiment, each tab is formed to define an inverted U-shaped tang positioned adjacent to, and in symmetrical registration with though axially spaced from, an associated mated aperture formed in a second layer of at least a two-layer gasket. Collectively, the plurality of tangs defines a circumscribed diameter slightly smaller than the diameter of the associated mated aperture, to assure retention of a bolt supported through the mated apertures for pre-assembly shipment. Preferably, the tangs in association with each of the mated apertures are formed of a spring metal adapted to provide radially inwardly directed forces against threaded shanks of associated bolts. To enhance effectiveness of bolt retention, the bolt-contacting portion of each U-shaped tab has an axial length greater than the axial thickness of the apertures.
REFERENCES:
patent: 2439306 (1948-04-01), Laidley
patent: 2639832 (1953-05-01), Bergstrom
patent: 4196913 (1980-04-01), Oka
patent: 4641401 (1987-02-01), Hasegawa
patent: 4728110 (1988-03-01), Nakasone
patent: 4784396 (1988-11-01), Scott et al.
patent: 4819954 (1989-04-01), Fucci et al.
patent: 5044641 (1991-09-01), Belter
patent: 5269541 (1993-12-01), Inamura
patent: 5344165 (1994-09-01), Miyaoh et al.
patent: 5544902 (1996-08-01), Belter
patent: 5551702 (1996-09-01), Inamura
patent: 5586770 (1996-12-01), Udagawa et al.
patent: 5645282 (1997-07-01), Belter
patent: 5673920 (1997-10-01), Mockenhaupt
patent: 5690342 (1997-11-01), Tanaka et al.
patent: 5725223 (1998-03-01), Yamada et al.
patent: 5791660 (1998-08-01), Belter
patent: 5979906 (1999-11-01), Silvian
patent: 6076833 (2000-06-01), Geshi
patent: 6189895 (2001-02-01), Yamada
patent: 6227785 (2001-05-01), Kilgore
patent: 6371492 (2002-04-01), Baron
Dana Corporation
Patel Vishal
Pickard Alison
Rader & Fishman & Grauer, PLLC
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