Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7384439 | Vents for fluid systems A vent for a fluid system includes a chamber through which fluid can flow along either a first flow path or a second flow path, in which the resistance to fluid flow is relatively high when the fluid follows the first flow path and relatively low when the fluid foll... | 06/10/2008 |
| 7335241 | Cyclone vessel dust collector and vacuum cleaner having the same Disclosed are a cyclone vessel dust collection and a vacuum cleaner including the same. The cyclone vessel dust collector comprises a cyclone vessel main-body including a primary cyclone vessel unit for separating dusts from dust containing air, and one or more seco... | 02/26/2008 |
| 7311742 | Vacuum cleaner An electric vacuum cleaner includes an inlet port through which a suctioned air stream including dirt particles pass and a centrifugal separation member having a substantially circular space therein. The centrifugal separation member has a swirl portion to swirl the... | 12/25/2007 |
| 7262384 | Reaction vessel and method for synthesizing nanoparticles using cyclonic gas flow A reaction vessel and a method for efficiently producing and collecting nanoparticles in the reaction vessel using cyclonic gas flow. Gas is injected through an inlet tangentially positioned relative to the axis of the vessel to cause the gas to form an outer helica... | 08/28/2007 |
| 7232477 | Environmental continuous air monitor inlet with combined preseparator and virtual impactor An inlet for an environmental air monitor is described wherein a pre-separator interfaces with ambient environment air and removes debris and insects commonly associated with high wind outdoors and a deflector plate in communication with incoming air from the pre-se... | 06/19/2007 |
| 6926749 | Cyclone separator with compact inlet A cyclone separator is provided with a compact inlet path, in which the inner and outer walls of the inlet path are curved, with the inner wall having a radius that is essentially the same as the radius of the cyclone body wall and with the outer wall wrapping aroun... | 08/09/2005 |
| 6733576 | Gas sampling separator A gas sampling separator 29 for the separation of liquid or other contaminants from gas received from a pipeline may be easily inspected visually and cleaned. A cylindrical body 62 forming a separation chamber 64 is threaded onto a base 40 | 05/11/2004 |
| 6503303 | Enclosure for an air aspirating machine An enclosure for an air aspirating machine, such as a compressor 11 for a fuel cell drive 13, which represents a closed volume, so that said volume can be used acoustically for the air that is being drawn in. An air intake 17 is extended into the enclosur... | 01/07/2003 |
| 6468321 | Blade and skirt assembly for directional gas cleaning and drying system A blade and skirt assembly for a directional gas cleaning and drying system which is typically installed in a gas pipeline for removing solid and liquid impurities from steam or a process gas such as natural gas in the pipeline. The directional gas cleani... | 10/22/2002 |
| 6090175 | Air inlet for a dust collector An air inlet for a dust collector wherein a scroll inlet duct and an associated cylindrical duct are mounted on the top wall of the dust collector housing so that dust-laden gas flows into the scroll duct and through the cylindrical duct resulting in a ro... | 07/18/2000 |
| 5958094 | Cyclone collector and cyclone classifier A cyclone, in particular a cyclone collector and a cyclone classifier having an arrangement disturbing the gas-particle flow in the inlet area of the inlet casing or in the cylindrical part of the housing. This flow disturber effects a deflection and disp... | 09/28/1999 |
| 5599365 | Mechanical fluid separator A mechanical fluid separator defines an interior chamber for centrifugally separating entrained media from a fluid stream. The mechanical fluid separator has a fluid inlet connecting the interior chamber with a media entrained fluid source. A cone shaped ... | 02/04/1997 |
| 5061304 | Steam processing apparatus and method A steam processing apparatus and method in which a plurality of separators are disposed along the length of a cylindrical drum having inlet means for receiving a mixture of liquid and vapor and outlet means for discharging the separated liquid and vapor. ... | 10/29/1991 |
| 4946483 | Filter for the separation of oily fumes The air in which the oil particles are suspended is drawn from the environment through an air intake (4) as a result of the vacuum created by a centrifugal aspirator (11) and then passes along a substantially vertical duct (5) in which an internal helical... | 08/07/1990 |
| 4892571 | Equipment and method to remove particulate and dissolved particles from steam Equipment takes in steam from a boiler and expands same to form water droplets. A baffle causes steam and droplets to swirl. Solubles are dissolved by droplets and insolubles separate. Both are collected by a receiver.... | 01/09/1990 |
| 4673426 | Moisture pre-separator for a steam turbine exhaust A moisture pre-separator for the exhaust portion of a high pressure steam turbine is disclosed. The pre-separator mounts in the nozzle and adjoining piping of the exhaust portion and provides a first channel for capturing moisture caused by secondary flow... | 06/16/1987 |
| 4668256 | Liquid/gas separation Apparatus for removing entrained liquid from a gas stream comprises a cylindrical casing (67) designed to be mounted so that its axis is substantially vertical. An inlet port (62) and a gas outlet port (63) are provided adjacent to the upper end of the ca... | 05/26/1987 |
| 4624691 | Cyclone separators to prevent or reduce clogging A cyclone separator and an installation of such a separator in a processing vessel are set forth which conditions the inlet flow to prevent the depositing of particulates at the cyclone inlet. The separator is disposed in a cylindrical enclosure represent... | 11/25/1986 |
| 4613349 | Fluid separator and flow stabilization structure A centrifugal separator for separating liquid and solid contaminants from flowing gas and for separating certain liquids from other liquids. The centrifugal separator finds novel application as a flow stabilization system wherein the separator vessel is c... | 09/23/1986 |
| 4602925 | Moisture separator Steam turbine apparatus is disclosed as comprising first and second turbine sections having respectively an outlet opening and an inlet opening. The first or high pressure turbine section has a plenum wall adjacent its exhaust opening that collects water ... | 07/29/1986 |
| 4556542 | FCCU Catalyst-high velocity vapor separator A separator apparatus has been invented which rapidly disengages catalyst from product vapor in the reactor discharge stream of a fluid catalytic cracking (FCC) apparatus. The separator apparatus comprises a flow diverter which comprises a frustum in whic... | 12/03/1985 |
| 4476608 | Apparatus for removal of ash Apparatus for removal of ash and the like from open fireplaces, ashpans etc. by means of a vacuum cleaner, said apparatus comprising an airtight ash container, an inlet pipe stub for ash and air and an outlet pipe stub to be connected with a suction sourc... | 10/16/1984 |
| 4469497 | Axisymmetrical separator for separating particulate matter from a fluid carrying medium A separator for separating particles carried in a fluid carrying medium is disclosed. The separator includes an elongated duct and associated openings incorporated in a solid body. The duct is axisymmetrical relative to its longitudinal axis, and includes... | 09/04/1984 |
| 4409008 | Dust disposal cyclones A cyclone with a tangential peripheral inlet and a central axial outlet is improved as to efficiency by inducting air between the inlet and the outlet. The inducted air is diverted by a baffle that temporarily separates it from the dust-laden inlet air, t... | 10/11/1983 |
| 4313715 | Anti-slug suction muffler for hermetic refrigeration compressor A hermetic refrigeration motor-compressor assembly includes a motor driving a compressor having suction and discharge ports. A hermetically sealed casing encloses the motor and compressor and has a gas inlet opening coupled by a conduit to the evaporator ... | 02/02/1982 |
| 4268288 | Cyclone vacuum cleaning apparatus A cyclone separator-type vacuum cleaner. The vacuum cleaner has a cylindrical housing having three sections. Each section of the housing is joined to an adjacent section by latches provided on the housing. By releasing the latches the internal mechanisms ... | 05/19/1981 |
| 4234327 | Compressed air system having an air dryer An air dryer of a compressed air system includes a vertical cylindrical tank with a downwardly directed entry pipe therein having a terminal to form liquid droplets on the bottom thereof. The tank has a manual drain valve on the bottom. A baffle near the ... | 11/18/1980 |
| 4218226 | Vacuum apparatus In apparatus for vacuuming particulate matter an enclosed housing includes at least one inlet for ingress of particulate matter and at least one outlet enabling air to egress from the housing, the inlet and outlet being oppositely disposed. A fan is conne... | 08/19/1980 |
| 4092137 | Gas-entrained liquid separating means with dual housing The invention comprises an L-shaped tank which, in combination, has both a vertical, liquid-reservoir housing and a horizontal, filter housing through which compressed gas, which has liquid entrained therein, is conducted. The gas is guided in centrifugal... | 05/30/1978 |
| 4081249 | Chemical conversion apparatus and method Improved apparatus for carrying out catalytic chemical conversion and restoring the catalytic activity of solid particles previously used to promote chemical conversion involve improved devices to at least partially separate solid particles-vapor mixtures... | 03/28/1978 |
| 3992172 | Separator arrangement for start-up system A fluid separating apparatus in which an inlet is disposed in the upper portion of a substantially vertically oriented cylindrical housing for receiving a mixture of liquid and vapor. The mixture is separated in the housing by the application of centrifug... | 11/16/1976 |
| 3989489 | Centrifugal apparatus for gas/liquid separation An apparatus for separating liquid particles from a gas-stream by passing the gas stream through a curved tube so that the liquid is caused to concentrate along the inner surface of the outer wall of the curved tube. The concentrated liquid together with ... | 11/02/1976 |
| 3960734 | High efficiency cyclone separator A cyclone separator having a central fluid conduit. An interceptor ring is externally attached to the end of the fluid conduit and has a surface which intercepts fluid flowing longitudinally along the outer surface of the fluid conduit and directs the flu... | 06/01/1976 |
| 3953184 | Cyclone-type dust separator A dust contaminated air stream enters a cyclone-type dust separator having a curved outer wall and follows a path that spirals downwardly and inwardly. The primary air stream, which occurs during the first revolution, is separated from the subsequently oc... | 04/27/1976 |
