Ferrofluid magnetic seal

Details Ferrofluid magnetic seal Ferrofluid magnetic seal

2006-05-03

2010-02-16

Pickard, Alison K (Department: 3676)

Seal for a joint or juncture

Seal between fixed parts or static contact against...

Contact seal for other than internal combustion engine, or...

C049S478100

Reexamination Certificate

active

07661680

ABSTRACT:
A ferrofluid based magnetic seal, comprising at least one gasket, the at least one gasket comprising a flexible, closed cell material, such as, without limitation, neoprene, polyvinylchloride, or plastic, and a ferrofluid core; a first housing, wherein a first face of the first housing is designed to receive at least a portion of the gasket; a second housing, wherein a first face of the second housing is designed to receive at least a portion of at least one magnet; and wherein the at least one magnet is positioned such that when the first housing and the second housing are in close proximity, the at least one magnet is positioned substantially along the length of the at least one gasket.

REFERENCES:
patent: 2389298 (1945-11-01), Ellis
patent: 2627097 (1953-02-01), Ellis
patent: 2959832 (1960-11-01), Baermann
patent: 3077644 (1963-02-01), Kesling
patent: 3400964 (1968-09-01), Baermann
patent: 3487581 (1970-01-01), Ellingson, Jr.
patent: 3604152 (1971-09-01), Protzman
patent: 3862515 (1975-01-01), Baermann
patent: 4035875 (1977-07-01), Kobelt
patent: 4171818 (1979-10-01), Moskowitz et al.
patent: 4252328 (1981-02-01), Raj et al.
patent: 4999951 (1991-03-01), Keys et al.
patent: 5826883 (1998-10-01), Cho et al.
patent: 6131341 (2000-10-01), Wade et al.
patent: 6487819 (2002-12-01), Goldberg et al.
patent: 6838963 (2005-01-01), Zimmerling et al.
patent: 7267378 (2007-09-01), Drumm
patent: 2004/0012158 (2004-01-01), Neuhaus
“Ferrofluid,” Wikipedia, the free encyclopedia, http://en.wikipedia.org/wiki/Ferrofluid, pp. 1-3.
“Rotary Seals,” http://www.roymech.co.uk/Useful—Tables/Seals/Rotary—Seals.html, pp. 1-4.

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