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 |
| 7503842 | Air curtain-assisted exhaust method and device thereof An air curtain-assisted exhaust method and a device thereof are provided. Air curtain generators are disposed on a worktable to enclose an encircled area in the worktable. A receiving hood is disposed above the worktable, wherein the vertical lower part of the outer... | 03/17/2009 |
| 7357831 | Method and apparatus for controlling humidity and mold An apparatus for reducing a relative humidity of air inside an enclosed space includes a portable outside air heat exchanger unit having a fan operative to create an air stream by drawing outside air from an intake and discharging the air stream through an outlet in... | 04/15/2008 |
| 7357830 | Device for dehumidifying room air A device for dehumidifying room air has a chamber consisting of at least one first cavity (1) and at least one second cavity (2). The cavities are separated by at least one water-permeable and/or water-vapor-permeable structure (3), these struct... | 04/15/2008 |
| 7337521 | Machine tool, transfer machine tool, and method for the machining of a workpiece In order to improve a machine tool with a working area, in which workpieces can be positioned and can be machined with at least one tool held by a tool holder, such that the disposal of shavings is optimized, at least one cover is provided which limits the working a... | 03/04/2008 |
| 7316720 | Securing device for a filter element A securing device for a filter element, which can be detachably mounted on an extractor hood, has a connecting implement for detachably connecting the filter element to the associated extractor hood. The connecting implement catches the filter element when detaching... | 01/08/2008 |
| 7281886 | Suction device A suction device that is used with a power drilling tool for aspirating material removable during operation of the drilling tool, and which includes a suction head (20) displaceable relative to the drilling tool (2) in a direction opposite a drilling d... | 10/16/2007 |
| 7232370 | Adjustable roof jack with flexible boot An adjustable roof jack adapted for mounting on a flat or pitched roof. The roof jack is connected to a lower end of an air discharge duct from an air conditioning unit and to the top of an air supply duct in the roof. The roof jack includes an angular-shaped sheet ... | 06/19/2007 |
| 7195429 | Drill template with integral vacuum attach A drill template includes a vacuum housing with a skirt having a CAD-formed contact surface formed to an exact fit with a mold line surface of a structure. The drill template includes at least one drill guide bushing extending through the vacuum housing from a top s... | 03/27/2007 |
| 7189272 | Movable spray painting stand A movable spray-painting stand includes a worktable provided with four casters and having a wind-exhausting device and a filtering device assembled thereon. The wind-exhausting device has an air inlet communicating with the wind outlet of the filtering device. A sep... | 03/13/2007 |
| 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 |
| 7189349 | Flexible walk-in environmental enclosure An enclosure assembly (10, 10, 10) includes a framework (12) formed from structural members and a flexible transparent enclosure (14) which provides an enclosed space for isolation and or treatment of patients, equipment, and the like. A treatme... | 03/13/2007 |
| 7182793 | System for reducing oxidation of electronic devices The invention provides a system for reducing oxidation of a semiconductor device when it is heated, for example during wire bonding. A holding device is provided for securing the semiconductor device to a platform. The holding device includes an opening for providin... | 02/27/2007 |
| 7077893 | Hood for a filter ventilator The invention relates to a hood (10) for a filter ventilator, which is connected to an outside wall (40) of a space to be ventilated, in particular the outside wall (40) of a control box, circuit housing, or case for various kinds of devices, an... | 07/18/2006 |
| 6942650 | Evacuator An improved smoke evacuation system (10), a method for removing gaseous byproducts of surgical procedures, and noxious vapors from chemicals, is provided. The smoke, and vapor evacuation system includes a vacuum head (18) positioned at a surgical site ... | 09/13/2005 |
| 6932690 | Adjustable roof ventilator jack An adjustable roof ventilator jack for operationally coupling a roof ventilator to a venting aperture extending through a sloped roof. The jack includes a base section having base section front, rear and side walls. The base section is configured so as to be angled ... | 08/23/2005 |
| 6887146 | Dust extraction shroud for a power tool A dust extraction shroud for a drill, which surrounds a drill bit and which lies adjacent the work surface, comprises a body portion defining a first inlet adapted to engage the work surface and to surround the location at which said bit penetrates the surface. The ... | 05/03/2005 |
| 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 |
| 6758875 | Air cleaning system for a robotic welding chamber A robotic welding station cleaning assembly (10) for removing particulates from an air-filled chamber surrounding a welding robot (12). A frame (14) is positioned about the robot (12) and includes a top (20) defining an opening ( | 07/06/2004 |
| 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 |
| 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 |
| 6540603 | Method and system for the regulation of ventilation in a welding workshop A method and a system for the regulation of ventilation in a welding workshop, in which method the volume of supply air and/or extract air in the ventilation of the welding workshop is regulated. The basis of regulation of the volume is the load imposed o... | 04/01/2003 |
| 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 |
| 6116249 | Method and apparatus for extracting particles produced by the treating of human or animal nails Method and apparatus for removing dust produced by the treating of human or animal nails. An air current produced by a fan is directed through an adjustable conduit towards the nails being treated. A funnel attached to a second adjustable conduit leading ... | 09/12/2000 |
| 6048264 | Self-sealing apparatus and method for directing pressurized air into a vehicle or other compartment Apparatus for directing a flow of pressurized air into a vehicle or other compartment includes an air bag inflatable in response to the flow of pressurized air. The air bag includes an inlet opening for receiving the flow and an outlet opening for deliver... | 04/11/2000 |
| 5913721 | Ventilation hood with enhanced particle control and method of using An apparatus for cleaning a process chamber that includes a ventilation hood which has a fluid flow channel attached to an inner peripheral wall of the hood body equipped with a plurality of fluid nozzles pointing downwardly toward a process chamber cavit... | 06/22/1999 |
| 5769702 | Variable positioning gaseous conduit orifice and method of use A selectively positionable fluid conduit for gas removal from or gas introduction to a specific environment is disclosed. The fluid conduit includes a tubular wand having an orifice at the distal end thereof. Unwanted gases are removed by suction force th... | 06/23/1998 |
| 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 |
| 5702493 | Welding fume funnel with magnetic coupling means A smoke removal device, especially designed for use in welding, having one or more portable funnels, with a wide opening through which suction may be directed to remove smoke from particular areas where combustion is taking place, and a narrow opening opp... | 12/30/1997 |
| 5658373 | Air cleaning methods for mechanical industrial process An air cleaning system for treating contaminated air from a mechanical industrial process containing a heterogenous multi-component mixed density fluid (e.g., mist, vapor and/or smoke) that addresses the cloud-like behavior of this contaminated air. The a... | 08/19/1997 |
| 5643078 | Method and system for air-conditioning a coating station for a paper web or equivalent A method and system for air-conditioning of a coating station for a paper web in which hot and moist air is removed from the environment of the coating station. In the method, a dry and cool air flow is blown into a working area of a person working at the... | 07/01/1997 |
| 5624309 | Fume removal work station A work station comprising a portable platform defining a work area for soldering and desoldering operations for electrical/electronic components with fume removal and reduced build-up of static electricity by providing a conductive surface in the work are... | 04/29/1997 |
| 5622538 | Source capture sytem for an air cleaning system A source capture system for capturing contaminated air from an industrial process includes structure both for continuously capturing a contaminated air volume emitted during operation of the industrial process and for mixing that contaminated air volume w... | 04/22/1997 |
| 5613990 | Air cleaning system for mechanical industrial processes An air cleaning system for treating contaminated air from a mechanical industrial process containing a heterogenous multi-component mixed density fluid (e.g., mist, vapor and/or smoke) that addresses the cloud-like behavior of this contaminated air. The a... | 03/25/1997 |
| 5569075 | Gas injection apparatus and process to form a controlled atmosphere in a confined space A gas injection apparatus and process to form a controlled atmosphere in a confined space, comprising at least one assembly of ducts installed in series and/or in parallel, of which at least a part (2, 12, 13) of a duct comprises gas injection apertures. ... | 10/29/1996 |
| 5487768 | Minienvironment for material handling A minienvironment provides a cleanroom-type environment by maintaining an ultra-filtered clean-air material handling area to minimize or eliminate the exposure of materials to harmful microcontaminants. The minienvironment includes an air flow generator a... | 01/30/1996 |
| 5362274 | Blowing port for clean air of an apparatus for washing semiconductor materials A blowing port of an apparatus for washing semiconductor materials, has a plurality of passages defined within the duct of the blowing port. At least the upper portion of each passage is formed convergently to its end. The end of each passage of the blowi... | 11/08/1994 |
| 5346426 | Method and an apparatus in ventilation A method and apparatus for the mechanical ventilation and heating of a premises with improved removal of impurities from air present in the premises. At least one suction extraction device is provided for removing polluted or stale air in a region adjacen... | 09/13/1994 |
| 5326314 | Method and system of cleaning industrial air A system and method for efficiently and economically providing a sufficient number of air changes per hour to satisfy government recommended standards for proper ventilation of industrial manufacturing facilities. The system is applicable to a building, h... | 07/05/1994 |
| 5312296 | False-ceiling construction and method for the flow of air in connection with a false-ceiling construction False-ceiling construction (10), which is intended in particular for institutional kitchens and which false-ceiling construction is composed of modular units, which comprise at leat an intake air unit (11) and an exhaust air unit (18) and, in the area bet... | 05/17/1994 |
