...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7361082 | System, device and method for ventilating a room A system and method for ventilating a room in which the system has at least one air supply unit and one air exhaust unit. The air inlet unit has a guiding slot diffuser for guiding an airstream in a certain direction, such that a patient, lying down in a bed on his ... | 04/22/2008 |
| 7226354 | Storage body with air cleaning function A cabinet wherein air sucked from an inlet opening 4d of a shelf board combined inlet duct 4 by drive of an air purification unit 3 is passed through the shelf board combined inlet duct 4 and introduced into the inside of a case | 06/05/2007 |
| 7217186 | Mobile aeraulic isolation device against airborne contamination with variable geometry air diffuser Mobile aeraulic isolation device (1a) with variable geometry multi-block air diffusion chamber (4), comprising at least two mobile plenums (5,6) to protect a sensitive area such as a bed (2) against contaminating airborne aerosols.... | 05/15/2007 |
| 7188636 | Containment cart A portable enclosure apparatus is provided with a frame assembly having a bottom wall, an upper frame member and a single pair of vertical support members. The support members are easily length adjusted by a single user to vary the height of the system while in use.... | 03/13/2007 |
| 7044850 | Open patient care unit An open patient care unit with a bed (1), with inner and outer air discharge channels (20, 30) extending around the bed (1) at least over some sections, and with at least one air exhaust or a purgative suction unit (4) arranged above the ... | 05/16/2006 |
| 7040978 | Sliding door device The invention concerns a sliding door device (10) comprising at least a mobile sliding door (11) and separating elements (12) for maintaining and guiding the mobile and removable sliding door (11). The latter enables automatic opening and... | 05/09/2006 |
| 7014672 | Carrying vehicle, manufacturing apparatus, and carrying system According to the present invention, in a carrying system comprising a carrying vehicle and a manufacturing apparatus the interior of which is kept cleaner than a surrounding environment, manufactured articles to be transferred are prevented from being contaminated b... | 03/21/2006 |
| 7001262 | System for dynamic airflow control in a paint booth using multiple air supply plenums A system and method for handling airflow in a paint booth where a primary plenum encloses a secondary plenum having a damper to control the amount of air entering the secondary plenum from the primary plenum. The secondary plenum is installed above a paint spray app... | 02/21/2006 |
| 6955596 | Air flow producer for reducing room temperature gradients An air flow producer mounted at the ceiling of a room generates an air flow toward the floor, reducing temperature gradients and improving heating and cooling efficiency. A housing defines a circular cylindrical, vertical flow passage that receives the air flow. A d... | 10/18/2005 |
| 6926664 | Hoodless incubator A hoodless incubator is provided, which supplies both a good microclimate in the area of the patient surface (1) and guarantees good access to the patient at the same time and continuously. The incubator includes a bed (1) and an air jet unit (6... | 08/09/2005 |
| 6920777 | Intake cross-sheets for gas chromatographic oven An apparatus, system and method reduce the cool down time of GC ovens by supplying larger volumes of air through oven intake ducts. The system and method provide intake cross-sheets in an oven intake duct to reduce airflow spin, increasing the flow rate of fresh air... | 07/26/2005 |
| 6884158 | Placing unit for a human being In a dentist's surgery, a treatment room, and premises where different chemicals are handled or where welding or soldering is performed there are a number of pollutants. In accordance with the invention, these pollutants are removed by an endless air-jet circuit ( | 04/26/2005 |
| 6797029 | Process facility having at least two physical units each having a reduced density of contaminating particles with respect to the surroundings In a process facility for producing semiconductor wafers, a third physical unit is configured between two physical units that produce mini environments. The third physical unit has a laminar flow at right angles to the laminar flows of the two physical units and is ... | 09/28/2004 |
| 6776822 | Air filtration device for reducing airborne particulate matter in enclosures An air filtration system according to the present invention includes an enclosure having a floor section, a top section and an opening. A ventilation subsystem within the enclosure includes an air duct having an air intake and an exhaust vent. First and second elect... | 08/17/2004 |
| 6702662 | Method for providing clean air in premises and device for carrying through said method The present invention relates to a method and a device for providing clean air in premises, wherein impure air is received or taken in into an air treatment device (1) from lower portions of the premises and cleaned or purified therein. A first partial fl... | 03/09/2004 |
| 6645064 | Smoke evacuation device A smoke evacuation device comprises a nozzle for connection to a source of clean air supply, the nozzle being adapted to vent clean air supply in all available directions in space therefrom to provide a volume of space with clean air in the proximity of t... | 11/11/2003 |
| 6632132 | Tornado type intake and blowing device A tornado type air intake and blowing device has an exhaust port communicating with an exhaust duct, an air supply chamber which is provided so as to surround the exhaust port and to which air is supplied through an air supply inlet, and air blowing ports... | 10/14/2003 |
| 6632260 | Adjustable clean-air flow environment Enclosures having adjustable clean gas flow environments and methods of enclosed pressure differential distribution technology. Specifically, clean gas flow enclosures, which provide for the isolation of materials from airborne micro-particulate contamina... | 10/14/2003 |
| 6623352 | Vortex air barrier An air barrier system is disclosed that allows the isolation of a central volume or one volume from another without the use of physical barriers. Toroidal vortices are formed at opposing end or ends of the volume to be isolated and prevent transport inwar... | 09/23/2003 |
| 6623538 | Sterile laminar airflow device A compact, portable, lightweight, low power consuming, convenient, versatile and sterile laminar airflow device, useful in obtaining a workspace substantially devoid of airborne particulate contaminants, said device having a body (C) divided into an upper... | 09/23/2003 |
| 6620038 | Suction and exhaust device A suction and exhaust device wherein air is supplied as air curtain flow through air outlet (3) while the air surrounded by the air curtain flow is sucked through suction ports (2b) to be exhausted. A supply space in the device is divided into two chamber... | 09/16/2003 |
| 6565035 | Apparatus and method for forming an air curtain for use with an aircraft A system and method for providing an air curtain for impeding the entry of dust, dirt, debris, smoke, insects and other airborne particulate matter into an interior area of an aircraft without the need for disposing heavy, bulky and high power consuming b... | 05/20/2003 |
| 6361431 | Method for ventilating an internal space by rotating air flow A method for ventilating an internal space by rotating air flow comprises a step of blowing out a jet of internal air having a vertically long rectangular cross section and uniform blowout velocity distribution over the cross section horizontally along th... | 03/26/2002 |
| 6251006 | Device for dynamic separation of two zones A device for dynamically separating two zones by a bufer zone and two clean air curtains. When transferring objects at high speed between two zones, a buffer zone which is connected to the two zones, forms a dynamic lock in order to separate them. a dynam... | 06/26/2001 |
| 6210267 | Apparatus and method for use of an air rail An apparatus and method for minimizing the amount of smoke to which a shielded person is exposed. The apparatus, or air rail, has a conduit and a fan. The conduit has an air outlet through which air is forced by the fan. In operation, the fan generates an... | 04/03/2001 |
| 6134109 | Control box with door and cooler The invention relates to a control box with a box body which can be closed off by a door and a cooler with an inner circuit consisting of a ventilator and an evaporator, and an outer circuit consisting of a compressor, a condenser and a ventilator. An air... | 10/17/2000 |
| 6110244 | Clean air system A clean air system a fan and a filter assembly for producing a flow of clean air and for discharging the clean air from an outlet towards a clean area. A Coanda effect device is located adjacent to the filter assembly about the whole or part of its periph... | 08/29/2000 |
| 5904896 | Multi-stage zonal air purification system An air filtration and purification system, particularly adapted for treating contaminated air within a preselected zone of a building interior space, includes a filter and purifier unit comprising first and second stage particle filters, an odor neutraliz... | 05/18/1999 |
| 5765635 | Air conditioner for forming an air curtain An air conditioner for cooling or heating partitioned zones of an interior of a vehicle includes an air conditioning part and air curtain forming apparatus. The air conditioning part cools and heats intake air. The cooled or heated intake air is supplied ... | 06/16/1998 |
| 5716268 | Device for removal of deleterious impurities from room atmosphere A device for removal of deleterious impurities from room atmosphere comprises an exhaust hood, a means for delivery of inflow air into the emission zone of deleterious impurities and incorporates slotted nozzles arranged around the perimeter of the hood a... | 02/10/1998 |
| 5607354 | Air distribution system An air distribution unit for mounting in the wall or floor of a room having a plenum space behind the wall or floor, comprises a housing having an air inlet for communication with the plenum space and an air outlet; a blower between the air inlet and air ... | 03/04/1997 |
| 5395410 | Fume exhauster An improved fume exhauster includes a housing forming therein a receiving space in which a suction and filtration unit is disposed. Fastened to the lower portion of the receiving space of the housing is a bottom plate having a fume sucking hole and a plur... | 03/07/1995 |
| 5350337 | Zone-forming apparatus A zone-forming apparatus adapted to direct a jet-stream in a radial direction by a guide member, the jet-stream being emitted from jet-stream generator which is arranged above the apparatus, and an air curtain thus formed is utilized to define a working s... | 09/27/1994 |
| 5301457 | Chair with insect repellant air jets A chaise lounge and upright chair, representing two embodiments of the invention, each having a frame with tubular components forming a primary air plenum having a predetermined orientation with respect to an occupant in a normal position sitting on the u... | 04/12/1994 |
| 5277655 | Ventilating apparatus for farm equipment used in the fumigation of crop fields Ventilating apparatus for farm equipment used in the fumigation of crop fields including the provision of a ducted blower unit disposed directly above the head of a fumigation equipment operator so as to cause a continual downward flow of air over the ope... | 01/11/1994 |
| 5264015 | Screen having an air cleaning function A space surrounded by screens to provide a stable negative pressure preventing contaminated air from flowing out of the space and cleaning the contaminated air before discharged from the space. Air ports and fans are provided in the screen.... | 11/23/1993 |
| 5263897 | Fluid suction nozzle and fluid-treating apparatus A fluid suction nozzle and a fluid-treating apparatus are used in the cleaning of air inside a local space. The suction nozzle has a suction passage and plural annular discharge passages surrounding the suction passage. The nozzle is connected with an air... | 11/23/1993 |
| 5163360 | Controlled atmosphere storage facility A live storage facility provides for the storage of large containers of product in a gas-tight enclosure containing an atmosphere precisely controlled to a preselected gas composition. Containers are introduced into the enclosure through a tunnel and remo... | 11/17/1992 |
| 5145458 | Method and apparatus for lifting gas streams to a great elevation in the atmosphere In a method and apparatus for lifting gas streams, vertical streams of air and/or gases of a great height are artificially formed in the atmosphere, mainly for decontamination purposes, by heating the air throughout a circular area sufficient to produce a... | 09/08/1992 |
| 5096467 | Artificial tornado generating mechanism and method of utilizing generated artificial tornados An array of parallel pipes, each having ports through which jet-like air streams exit, are arranged so that a peripherally directed air curtain is formed. The posts are shielded at both ends, and one end is provided with a chimney along a central axis of ... | 03/17/1992 |