No coin nor oath required. For personal study only.
This patent provides details of a rotary joint that is designed for the transfer of low-temperature refrigerant with a minimal running cost. The joint has a series of bellows-type mechanical seals isolating the transfer passages. Patent WO/2009/122782 appears to provide more detail on the sealing system which involves applying a vacuum to the outer sealing chambers.
๐ SIMILAR VOLUMES
This patent describes a gasket or grommet type device that may be used for sealing an opening in components such as a cylinder head cover where a tube passes through. To avoid damage on assembly the outside diameter is similar to or less than the diameter of the hole. Provision is made for radial ex
This patent describes the manufacture of a seal with graded properties that may be used as the bearing seal in a down-hole rock bit. A property gradient is formed in a seal, or a section of the seal, from the exterior surface inwards without changing the seal composition.
## DiaTuff specialty industrial diaphragms DiaCom Corp, a designer and manufacturer of moulded diaphragms, has announced the introduction of Dia.Tuff, a new line of specialty industrial diaphragms. Dia.Tuff diaphragms are composed of proprietary high strength fabric spun from a liquid crystal poly