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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 |
| 7270100 | Electric start mini-cultivator An electric starter for a walk-behind, powered, rotary cultivator having a gasoline engine having a crankshaft and a recoil starter connected to the gasoline engine. The electric starter includes an electric motor connected to the crankshaft between the recoil start... | 09/18/2007 |
| 7216670 | Drain apparatus with liquid trap and liquid level indicator A buoyant liquid level indicator device is positioned within liquid drain apparatus having a trough accommodating liquid to form a liquid seal to prevent passage of gas through the liquid drain apparatus. The indicator device will float and be exposed to an outside ... | 05/15/2007 |
| 7132023 | Foaming method and device The invention relates to a method and a device for foaming glue for the production of wood-based sheets. Gluing substance and gas are fed (1,2) into the foaming device through nozzles (3,4), which are directed to mix the gluing substance and gas to be ... | 11/07/2006 |
| 7066024 | Float adapted to track an interface between two liquids of differing density A float adapted to track an interface between two liquids of differing density, includes a hollow buoyant body having an interior cavity adapted to retain liquid. At least one upper access opening is provided in the body, which is adapted to permit filling of the in... | 06/27/2006 |
| 7029627 | Apparatus for sampling, storing, preserving and testing a specimen A multiple-chamber container for sampling, storing and preserving for later testing a sample. A swab having a foam tip is used to collect a sample (the sample must have some liquid component, e.g., saliva, urine, blood, etc.). After the foam tip is used to collect a... | 04/18/2006 |
| 6865942 | Device for estimation of brine density The present invention relates to a novel device that enables a person to gauge the brine density in solar salt works from afar without recourse to sampling of the brine. The device—which can be considered as an improvisation over the conventional laboratory type B... | 03/15/2005 |
| 6789421 | Density-based fuel indicator system for fuel cells A means for determining the concentration of a hydrogen-rich fuel in a fuel solution within the anode reservoir of a fuel cell. The fuel concentration is determined using a float responsive to fuel solution density. As fuel is consumed, the fuel concentration decrea... | 09/14/2004 |
| 6776039 | Alcohol content measuring instrument Disclosed herein is an alcohol content and temperature measuring instrument which is simply composed of a mug, an embolism an observation window, and a thermograph and a measuring tub. The measurement of alcohol concentration in a particular liquid can be measured a... | 08/17/2004 |
| 6408694 | Apparatus and method for on-line monitoring of a liquid density An apparatus and a method for on-line, real-time monitoring of a liquid density in a chemical process are provided. The apparatus is constructed by an upright, cylindrical housing that has a cavity defined therein for holding a liquid, and a density indic... | 06/25/2002 |
| 5938885 | Automated method for monitoring and controlling the orthophosphoric acid etch rate of silicon nitride insulator layers A method for continuously monitoring and controlling the etch rates within integrated circuits of silicon nitride insulator layers and silicon nitride insulator structures in aqueous ortho-phosphoric acid (H3PO4) solutions. To practice the method of the p... | 08/17/1999 |
| 5824885 | Method intended for use in anaesthetic systems for identifying anaesthetics In order to keep a patient from being administered an incorrect anaesthetic, an erroneous concentration of an anaesthetic or a mixture of anaesthetics, an anaesthetic system can be equipped with a device for identifying anaesthetics in anaesthetic system.... | 10/20/1998 |
| 5635362 | Assay of blood or other biologic samples for target analytes A patient's health may be diagnosed by centrifuging blood samples in a transparent tube, which tube contains one or more bodies or groups of bodies such as floats, inserts, liposomes, or plastic beads of different densities. Each density-defined body carr... | 06/03/1997 |
| 5496704 | Method for in vitro detection of formed elements in biological samples A biological sample such as feces, sputum, cervical tissue, pleural fluids, exudates, cytologic specimens, or the like, is tested for the presence or absence of: ova; parasites; microorganisms; inflammatory, neoplastic tissue cells; or other target materi... | 03/05/1996 |
| 5252460 | In vitro detection of ova, parasites, and other formed elements in stool A biologic sample such as feces, sputum, cervical tissue, pleural fluids, exudates, cytologic specimens, or the like, is tested for the presence or absence of: ova; parasites; microorganisms; inflammatory, neoplastic tissue cells; or other target material... | 10/12/1993 |
| 5013488 | Apparatus for control of hard water scale in evaporative coolers Disclosed is a method and apparatus for preventing or minimizing scale deposition from hard water onto heat transfer surfaces in atmospheric cooling towers, such as those used in air conditioning and refrigeration systems, where evaporative cooling of wat... | 05/07/1991 |
| 4830126 | Apparatus for the automatic measurement of the apparent weight of a sludge contained in a liquid and system for automatically measuring the PONSAR index of such a sludge, using the apparatus An apparatus for automatically measuring the apparent weight of a sludge contained in a liquid and a system for automatically measuring the PONSAR index of such a sludge, using the apparatus. The apparent weight of a liter of clarified liquid is obtained ... | 05/16/1989 |
| 4779462 | Apparatus for the automatic measurement of the apparent density of the mud in a liquid, system for the automatic measurement of the ponsar index of such a mud using the apparatus and process for measuring said index Apparatus for the automotive measurement of the apparent density of mud or sludge contained in a liquid, and a system for the automatic measurement of the PONSAR index and a process for measuring said index. The apparent density of one liter of clarified ... | 10/25/1988 |
| 4720998 | Crude oil sampling system A crude oil sampling system that obtains and stores a representative sample of crude oil as the oil flows from a stock tank into a sales line. As crude oil flows from the storage tank during a finite period of time, a much smaller flow is diverted to a cl... | 01/26/1988 |
| 4305303 | Sampling device and methods for collecting a lighter medium floating on a heavier medium A method for collecting a small sample of a lighter medium floating on the surface of a heavier medium in an open topped container comprises lowering an elongated tube into the mediums for forcing the lighter medium up into the elongated tube for testing ... | 12/15/1981 |
| 4159896 | Enhancement of separation of cell layers in centrifuged blood sample An improvement in the degree of separation of constituent cell layers in a centrifuged sample of human blood is achieved by decreasing the natural water content of the red blood cells to increase their density or specific gravity. Thus the red cell layer ... | 07/03/1979 |
| 4000657 | Apparatus for measuring the apparent weight of a sludge charging a liquid Apparatus for measuring and monitoring the state of activated sludge in the continuous treatment of waste waters or sewage. A suspensoid is produced by clarifying a quantity of the sludge-charged liquid, and the apparent weight of the sludge relative to t... | 01/04/1977 |
