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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 6814865 | Ion exchange membranes, methods and processes for production thereof and uses in specific applications The invention includes novel anion exchange membranes formed by in situ polymerization of at least one monomer, polymer or copolymer on a woven support membrane and their methods of formation. The woven support membrane is preferably a woven PVC membrane. The invent... | 11/09/2004 |
| 6569301 | Cation exchange membrane selectively permeable to monovalent cations and method for its production The present invention provides a cation exchange membrane which has excellent durability, a high limiting current density, a low direct current membrane resistance and excellent selectivity to monovalent cations. In the present invention, a cation exchang... | 05/27/2003 |
| 5945192 | Sealing assembly for a solid polymer ion exchange membrane An assembly consisting of at least one seal layer and a solid polymer ion exchange layer wherein the seal layer covers essentially only the region of the ion exchange layer which is to be sealed. The seal layer is made of porous polytetrafluoroethylene fi... | 08/31/1999 |
| 5830340 | Method for making a composite filter A method for forming filtration members using an electric potential to control the migration of electrically charged particles and hence to control the formation of a membrane layer on a substrate. In one embodiment, electrophoresis and electrodialysis pr... | 11/03/1998 |
| 3957607 | Process for the preparation of lipide soluble complexes of cations, application of the process and use of the complexes New lipide soluble complexes of cations like metal ions and ammonium ions are prepared by reacting an uncharged complex forming substance with the corresponding ions. Preferred uncharged complex forming substances are also new. The new lipide soluble comp... | 05/18/1976 |
