No coin nor oath required. For personal study only.
them is significantly small, it does not affect the reciprocation of the displacer. As the seal is provided so as not to be restricted axially and radially, the displacer is kept closely contacted with the inner peripheral surface of the cylinder even if the displacer shifts eccentrically.
๐ SIMILAR VOLUMES
This invention relates to a seal assembly for use in equipment in the electronics manufacturing industry that has a replaceable barrier to shield an elastomeric seal from direct exposure to a plasma. Commercially available seal and barrier shield assemblies comprise a bonded rubber seal and a contin
A tool that is intended for the repair of a sealing land downhole forms the subject of this patent. A motor rotates a polishing cylinder that features spirally-wound vanes. A reservoir of resin or other repair material is connected to an injection pump to deliver the material as the vanes are rotati