Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 7819729 | Air curtain doorway An air curtain doorway for preventing cross-filtration of air at a doorway between a relatively warm area and a relatively cool area has duct work and an air mover. The duct work includes a supply air duct and a return air duct at opposite sides of the doorway joine... | 10/26/2010 |
| 7544122 | Air shutter and installation method thereof An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening ... | 06/09/2009 |
| 7285147 | Air supply systems and pressure adjustment devices for use therewith An air supply system for a clean room with a critical machine. An intake duct connects the exterior of the clean room to a make-up air unit, and is configured to transport external air into the make-up air unit. A first air duct connects the make-up air unit to an a... | 10/23/2007 |
| 7169037 | Air curtain apparatus for ophthalmological inspection instrument An air curtain apparatus for ophthalmological inspection instrument comprising an air blower installed on the upper side of the support column of the inspection instrument which generates a downward air flow stream in vertical direction, an air suction device instal... | 01/30/2007 |
| 7158863 | Programmable controller for condition air curtains A programmable electronic controller that provides multiple command and control instruction for an air curtain being integrated therewith. The controller includes operational controls for fan speed, time adjustment duration including time delay, start time, stop tim... | 01/02/2007 |
| 7100396 | Climatic cabinet and, in particular, a climatic cooling cabinet The invention concerns a climatic cabinet, in particular, a climatic cooling cabinet, whose interior is loaded or unloaded with specimen slides, with the aid of a transporting device. The loading and unloading take place through a loading opening which can be closed... | 09/05/2006 |
| 7089685 | Method of microwave treatment of wood A method of microwave treatment of wood with a moisture content (based on dry weight) of at least 12% for rapid drying and stress relief which includes determining an area of the wood that is not to be treated, selectively subjecting a surface of the wood outside sa... | 08/15/2006 |
| 7080443 | Solid surface material fabrication station A fabrication station (117) suitable for use mobile unit (1) or as stand alone unit for fabricating solid surface construction materials is provided, as is a method of use therefor. The fabrication station is equipped with climate control units (23,... | 07/25/2006 |
| 7037189 | Air shutter and installation method thereof An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening ... | 05/02/2006 |
| 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 |
| 6960129 | Conditioned vestibule for a cold storage doorway A conditioned vestibule for a cold storage doorway is disclosed. The vestibule includes a frame that supports inner and outer moveable door-forming members. The vestibule also includes a heater that circulates air between the inner and outer door-forming members and... | 11/01/2005 |
| 6884160 | Barrier apparatus for resisting passage of harmful gases through an opening The invention relates to a barrier apparatus for resisting passage of harmful gases from a space through a substantially vertical opening having a top, a bottom and lateral sides, the barrier apparatus comprising a suction arrangement for sucking gases and blowing a... | 04/26/2005 |
| 6733557 | Device for diffusing sterile air An installation includes a worktop, a first wall and a device for the close protection of products arranged on the worktop, whereby the products are sensitive to contamination from the ambient environment. The products are protected by diffusion of a sterile air str... | 05/11/2004 |
| 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 |
| 6450879 | Air curtain generator An air curtain generator includes a casing with a fan received therein so as to blow an air curtain from opening of the casing. Two arms are pivotally connected to two end members on two ends of the casing. and each arm is pivotally connected to a fixed m... | 09/17/2002 |
| 6431978 | Slot outlet arrangement for air screen installations A slot-shaped outlet having first flow guide means extending in the interior space of a flow chamber. The flow guide means are extensions of the parallel arranged longitudinal side flanks that extend from the outside to the inside of the slot outlet. The ... | 08/13/2002 |
| 6334812 | Method for dynamic separation into two zones with a screen of clean air An air curtain (14) is used to dynamically separate a zone (10) to be protected and a contaminating zone (12) communicating with each other through at least one separation zone (11), the air curtain being formed by simultaneously injecting at least two ad... | 01/01/2002 |
| 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 |
| 6106387 | Conditioned and controlled air vestibule for refrigerated warehouse An improved, low-cost conditioned air vestibule for use on a doorway of a refrigerated storage room permits unobstructed passage of vehicles while effectively reducing the exchange of air through the doorway and substantially eliminating precipitation bot... | 08/22/2000 |
| 6095918 | Method and device for protecting a work surface A method and apparatus for closely protecting a workstation. The method includes the steps of (a) providing a horizontal work surface having a top face, an upstream side and a free side opposite the upstream side, the free side having an edge, the work su... | 08/01/2000 |
| 5934992 | Confinement method and device in particular for a special atmosphere in a space for continuously processing articles fed therethrough The present invention relates to a method for confining an atmosphere (B) in a space (4) communicating with its surroundings via at least one opening. A gas curtain (1+2) comprising a low-velocity jet (2) and a high-velocity jet (1) is generated at said o... | 08/10/1999 |
| 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 |
| 5759218 | Point of fill air system In an apparatus for extruding plastic into a length of parison in the form of a vertically oriented hollow tube, molding a container from the parison and for filling the container with liquid product, the apparatus having a extruder, with a parison head, ... | 06/02/1998 |
| 5425793 | Coupling-type clean space apparatus According to the present invention, chamber units are sequentially coupled with each other to thereby provide a volume of clean space, and whereby different environments can be maintained in the different chamber units. An air blowhole or door is provided... | 06/20/1995 |
| 5312294 | Method and device for maintaining a clean atmosphere at controlled temperature at a workstation A method and device for maintaining a clean atmosphere at controlled temperature, at a workstation accessible from a contaminated room. A curtain of gas--in the form of a slow jet and of a fast jet--is generated at the level of the openings between the wo... | 05/17/1994 |
| 5306207 | Air removal apparatus A new and improved wide area air removal apparatus includes at least one air duct that traverses a portion of the wide area and includes a plurality of apertures arrayed along the length of the air duct. An electric fan assembly is connected to the plural... | 04/26/1994 |
| 5188136 | Cleaning device A cleaning device in the present invention comprises cleaning chambers each for cleaning subjects to be cleaned, transport units for transporting the subjects, transport chambers each having one of the transport units, first decompression means for decomp... | 02/23/1993 |
| 5167572 | Air curtain fume cabinet and method An air curtain fume cabinet, in which an air curtain jet is directed across the face opening to an exhaust duct. Sufficient flow is exhausted at the exhaust duct to swallow (i) the entire air curtain jet, plus (ii) all of the air which the jet entrains fr... | 12/01/1992 |
| 5145459 | Process and apparatus for the dynamic separation of two zones In order to ensure a bidirectional dynamic separtion between two zones (10,12), between said zones is formed a gas curtain constituted by three juxtaposed gas streams or jets (28,30,32). The central stream or jet is relatively fast and serves to stabilize... | 09/08/1992 |
| 5099751 | Control system for doors of a negative air pressure enclosure A decontamination chamber entranceway to an asbestos removal work area includes rigid swinging doors for a rapid escape from the contaminated work area due to an emergency such as a fire or smoke. Also during a power failure it is easy for the workers to ... | 03/31/1992 |
| 5074198 | Focussed ventilation procedure for a work spot and apparatus used in the procedure A focussed ventilation method and apparatus for a work space, in the method and apparatus suction is focussed on the source of impurities of the work spot and/or on the source of excess heat, and the operation of the focussed suction is assisted with the ... | 12/24/1991 |
| 5042456 | Air canopy ventilation system An air canopy ventilation system is disclosed which comprises a surface having two substantially parallel spaced apart side walls surmounted at their respective upper edges by a canopy. A vent means having a plurality of outlets extends between the side w... | 08/27/1991 |
| 4967645 | Air shower with directed air flow A cleanroom facility is provided with an air shower in which gasper jets are used to direct air in a preferred manner against persons entering the cleanroom facility. The gasper jets are combined with a downward air flow and with air curtains which limit ... | 11/06/1990 |
| 4936318 | Vacuum barrier A protective apparatus for preventing the exchange of harmful substances between an area isolated by the apparatus and the environment for use in medical, laboratory, and industrial application. The apparatus includes a physical shield, a vacuum barrier, ... | 06/26/1990 |
| 4700615 | Spray booth A spray booth includes an air cleaning apparatus providing an air intake beneath its floor, and provides air curtains along the interior surfaces of its side walls. The preferred air cleaning apparatus provides a first slot and water curtain through which... | 10/20/1987 |
| 4696226 | Fluid barrier curtain system A fluid barrier curtain at an aperture in a wall within a duct, as at the entrance to a furnace, is disclosed that maintains separation of fluids on opposite sides of said barrier curtain while permitting passage of objects therethrough. The barrier curta... | 09/29/1987 |
| 4516482 | Conditioned air vestibule for refrigerated warehouse doorway An improved, low cost conditioned air vestibule for use on a doorway of a refrigerated storage room permits unobstructed passage of vehicles while effectively reducing the exchange of air through the doorway and substantially eliminating precipitation bot... | 05/14/1985 |
| 4483316 | Air ventilation system An air ventilation system for cooking equipment having an exhaust hood disposed thereover in a building having a heating-ventilating and air-conditioning system for treating the air in the building. The exhaust hood includes a collection chamber and an ex... | 11/20/1984 |
| 4471688 | Apparatus for conditioning and protecting a zone from a space A method and apparatus for protecting and conditioning a zone, such as an operating field, from a space. The zone is bounded relative to the environment on at least one side thereof, by a curtain which is comprised of a substantially laminar stream from a... | 09/18/1984 |
| 4468825 | Oxygen removal system for a bed A system for removing oxygen from and around hospital beds for reducing the fire danger. A manifold having a plurality of sections is connected to and is supported from the frame. The sections are connected together by flexible joints and include a connec... | 09/04/1984 |
