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A high aspect ratio seal is provided for a large, roller cone drill-bit. It is designed to offer an alternative to the traditional O-ring for sealing rock drill-bits. A seal with a deeper radial cross-section is used, which also has a reduced contact area.
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This covers a gasket similar to that described in WO/2009/060689. In this case the sheath is described as PTFE or inorganic sheets that are laminated and bonded to the thin metal plate of core material. It is, again, claimed to work with both low and high compression forces. Large deformation of the
A series of alternative designs for the attachment of the seal housing to a large slurry pump is covered by this patent. The purpose is to improve pump efficiency and maintenance, and overcome problems associated with lifting into place replacement seal housings. The housing can be adjustable and he
A high aspect ratio seal is provided for a large, roller cone drill-bit. It