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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 |
| 4157295 | Method and apparatus for testing and separating minerals A sink-float method and apparatus for testing and separating a mineral such as coal in mineral products containing inert matter which employs a novel trapezoidally shaped testing tank, a mixture of perchloroethylene as a parting liquid and white gasoline ... | 06/05/1979 |
| 4111798 | Separation of solids by varying the bulk density of a fluid separating medium A method and apparatus for separating objects having a density greater than a selected density value from objects having a density less than said selected density value. The method typically comprises: (a) providing a separation vessel having an upper and... | 09/05/1978 |
| 4076505 | Coal desulfurization process This invention provides an improved process for reducing the pyritic sulfur content of coal, which process involves (1) contacting finely divided coal under sink-float separation conditions with a heavy organic parting medium which contains dissolved ther... | 02/28/1978 |
| 4059604 | Separation of mature okra seed into component fractions The present invention is directed to a method for separating mature okra seed into its essential basic components of oil, germ, kernel material and hull. The separation is obtained by cracking the seed in, or immersing previously cracked seed in a liquid ... | 11/22/1977 |
| 4055480 | Multi-phase separation methods and apparatus Multi-phase mixtures are resolved into separate phases by introducing the mixture into a body of liquid which contains a solvent for one of said phases and has a specific gravity intermediate two insoluble phases of the mixture. The latter accordingly mig... | 10/25/1977 |
| 3997435 | Method for selecting hollow microspheres for use in laser fusion targets Hollow microspheres having thin and very uniform wall thickness are useful as containers for the deuterium and tritium gas mixture used as a fuel in laser fusion targets. Hollow microspheres are commercially available; however, in commercial lots only a v... | 12/14/1976 |
| 3992288 | Method of separating articles having different specific gravities Articles having a first specific gravity may be separated from articles having a second specific gravity by placing said articles in an environment having a specific gravity between the specific gravities of the articles to be separated and thereafter sub... | 11/16/1976 |
