Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1994-09-23
1997-08-26
Cummings, Scott
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277DIG6, F16J 1553
Patent
active
056603975
ABSTRACT:
Devices and methods employ a solid-based medium that serves as a magnetic sealant, a lubricant, a bearing, an electrical or thermal conductor, singly or in combination. Included are devices wherein the solid-based medium is retained in a selected position using a magnetic field. In particular, the solid-based medium is either magnetically coupled to the magnetic field or is contained within a cavity sealed by a magnetic seal. In one group of embodiments, the solid-based medium comprises molecules having a molecular structure wherein one element of the structure is a cage or tube, as in fullerenes or met-cars. Such molecules are particularly useful in all of the devices of the present invention because of their exceptional stability and resilience. These properties ensure good performance in corrosive and/or vacuum environments and over a longer lifetime than is possible with conventional media.
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Cummings Scott
Haliday Emily M.
MacPherson Alan H.
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