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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7901206 | Heat-treating apparatus and method of producing substrates A heat-treating apparatus capable of realizing a highly precise processing maintaining a high degree of safety, and a method of producing substrates are provided. The heat-treating apparatus comprises a reaction tube for treating substrates; a manifold for supportin... | 03/08/2011 |
| 7762809 | Heat treatment apparatus Disclosed is a heat treatment apparatus which includes a processing vessel having a furnace throat at its bottom and adapted to accommodate process objects therein to perform a heat treatment to the process objects under reduced pressure, the processing vessel havin... | 07/27/2010 |
| 7424855 | Slide arrangement A slide arrangement for blocking or closing off a channel disposed between a coal pulverizer and coal dust burners, and conveying a gas having a high proportion of coal dust. The slide arrangement includes a housing disposed in the channel wall and a shroud or steel... | 09/16/2008 |
| 7367139 | Vacuum processing apparatus and method operation thereof This vacuum processing apparatus has a fixed processing chamber 24 and two movable load lock chambers 28a and 28b. A gate valve 26 is provided on the processing chamber 24, and gate valves 30 are respectively p... | 05/06/2008 |
| 7351056 | Method and apparatus for introducing materials into a rotary kiln An apparatus for introducing a material into a kiln using low pressure air injection. In a preferred embodiment, that apparatus has a movable vessel that is movable between a collection position and a discharge position. The vessel has an open top and an open base. ... | 04/01/2008 |
| 7351057 | Door plate for furnace The process chamber of a vertical furnace is provided with a closure, or door, comprising an upper and a lower door plate. The upper door plate has a gas exhaust opening proximate its center, thereby allowing for a symmetrical flow of process gases through the proce... | 04/01/2008 |
| 7269982 | Steam seal for textile production The invention is a sealing mechanism for a steam chest (14) used in the manufacture of textile materials. This invention is a device for heating continuous textile material comprising: a steam chest (14) having a steam inlet, a material inlet (18 | 09/18/2007 |
| 7214274 | Method and apparatus for thermally insulating adjacent temperature controlled processing chambers A dual chamber apparatus including a first chamber and a second chamber which is configured to be coupled to the first chamber at an interface. Each of the first chamber and the second chamber has a transfer opening located at the interface. An insulating plate is l... | 05/08/2007 |
| 7128570 | Method and apparatus for purging seals in a thermal reactor A semiconductor processing reactor comprises a reaction chamber with a gas exhaust and a mechanical seal at one end of the chamber. The seal seals off the chamber from the ambient environment and is purged with gas to prevent diffusion of ambient gases into the reac... | 10/31/2006 |
| 7090223 | Shaft sealing module for sealing vacuum chambers A shaft sealing module is proposed for sealing a shaft which extends driving rotationally from a normal pressure chamber into a high vacuum chamber. It is essential for the shaft sealing module according to the invention that the dynamic seal of the shaft takes plac... | 08/15/2006 |
| 7047908 | Cooling flange An apparatus has a body with first and second faces, an inboard surface bounding a central aperture, an outboard perimeter, and an array of bolt holes between the first and second faces. A channel is inboard of the bolt holes and first and second ports communicate w... | 05/23/2006 |
| 6988886 | Thermal treatment system for semiconductors A thermal treatment system for semiconductors comprises an outer tube made of silicon carbide, a base hermetically supporting a lower portion of the outer tube, a lid selectively opening and closing an opening formed in a central portion of the base, and a reactor w... | 01/24/2006 |
| 6776611 | Oxidation oven An oxidation oven for use in the production of carbon fibers from a polyacrylonitrile precursor fiber. The oven has an oven chamber formed by sides and ends. At least one of the ends has a first opening and a second opening. The product passes through the openings f... | 08/17/2004 |
| 6676407 | Warp resistant access door assembly for a high temperature combustion chamber A warp resistant fuel feed door assembly for use in injecting supplemental fuel into a high temperature combustion chamber such as a rotating cement kiln without substantial loss of heat or combustion gases. The apparatus, which is positioned on the exter... | 01/13/2004 |
| 6648637 | Seal and sealing method for temperature control chamber doors A system for sealing a lower edge of a temperature control chamber door to a temperature control chamber housing when the door is closed has a pair of opposed radiused corners provided at opposed lower corners of the door opening, and a resilient seal mem... | 11/18/2003 |
| 6503079 | Substrate processing apparatus and method for manufacturing semiconductor device An apparatus and a method for manufacturing a semiconductor device can provide a good quality film growth in a highly clean reaction atmosphere unaffected by contamination from a furnace opening portion. A reverse-diffusion preventing body 8 is provided b... | 01/07/2003 |
| 6485297 | Thermal treatment furnace having gas leakage preventing function A thermal treatment furnace is described in which gas leakage does not occur during thermal treatment at a high temperature. A thermal treatment furnace having a reaction tube is provided with an opening at one end and a flange surrounding the opening and... | 11/26/2002 |
| 6439137 | Self-anchoring expansion gap assembly for a gasifier The self-anchoring expansion gap assembly for refractory lined vessels such as a gasifier includes a substantially annular insulating blanket structure formed of compressible refractory material. A coil of rope formed of relatively incompressible refracto... | 08/27/2002 |
| 6341955 | Sealing apparatus in continuous heat-treatment furnace and sealing method A seal roll apparatus and method hermetically seals boundaries between a plurality of heat-treating sections for continuously heating and cooling a strip material in a continuous heat-treatment furnace. The seal roll apparatus includes a seal roll room in... | 01/29/2002 |
| 6338626 | Load-lock mechanism and processing apparatus A load-lock mechanism according to the invention comprises a vacuum chamber 31 arranged between a vacuum first transferring chamber 20 and atmospheric second transferring chambers 40. The vacuum chamber 31 has a first opening 31A facing the first transfer... | 01/15/2002 |
| 6302684 | Apparatus for opening/closing a process chamber door of ovens used for manufacturing semiconductor devices An apparatus for opening/closing a process chamber door of an oven for manufacturing a semiconductor device includes a boss formed at one side of an opening of the process chamber, a shaft which passes freely through the center of the boss, bearings attac... | 10/16/2001 |
| 6283749 | Inside/out, industrial vacuum furnace A hot walled, industrial, batch-type vacuum furnace constructed with a cylindrical furnace casing having a closed spherical end and an open end adapted to be closed by a sealable door. Furnace insulation is applied to the outside of the door and furnace c... | 09/04/2001 |
| 6190164 | Continuous heat treating furnace and atmosphere control method and cooling method in continuous heat treating furnace A continuous heat treatment furnace having one of a plurality of furnace zones except for first and last zones as a rapid cooling zone 11 for rapidly cooling a material by blowing an atmospheric gas, which comprises a roll-sealed chamber 3 partitioned at ... | 02/20/2001 |
| 6164960 | Flue seal for a carbon anode baking furnace A device for sealing a passageway in a flue from a carbon anode baking furnace, the flue being generally rectangular in shape and comprising a flue top and bottom, a headwall on either end of the flue, two walls, an opening in the flue top, at least one b... | 12/26/2000 |
| 6164963 | Semiconductor furnace processing vessel base A vertically oriented thermal processor supports semiconductor wafers within a vertical process chamber within a process tube about which a furnace heater is supported. A base plate support assembly mates with a processing vessel such that the interior su... | 12/26/2000 |
| 6142773 | Enveloping device and vertical heat-treating apparatus for semiconductor process system The process tube of a vertical heat-treating apparatus for semiconductor wafers has a port at the bottom to be opened and closed by a lid. A sealing mechanism is arranged to seal the connecting portion between the flange of the port and the flange of the ... | 11/07/2000 |
| 6138585 | Clinker grinder seal in coal-burning utility electrical power generation plant A coal-burning utility electrical power generation plant includes a mill pulverizing coal and supplying same to a boiler for combustion. The boiler has a bottom ash hopper for receiving combustion products including clinkers, and a clinker grinder for gri... | 10/31/2000 |
| 6027337 | Oxidation oven An oxidation oven for use in the production of carbon fibers from a polyacrylonitrile precursor fiber. The oven has an oven chamber formed by sides and ends. At least one of the ends has a first opening and a second opening. The product passes through the... | 02/22/2000 |
| 6004130 | Flue seal for a carbon anode baking furnace A device for sealing a passageway in a flue from a carbon anode baking furnace, the flue being generally rectangular in shape and comprising a flue top and bottom, a headwall on either end of the flue, two walls, an opening in the flue top, at least one b... | 12/21/1999 |
| 6000938 | Automated door mechanism for heat treating furnace Disclosed is an automated access door for a heat treating furnace that is controlled via a foot pedal switch. The door affords the user with the ability to use both hands to access the interior compartment of the furnace in order to manipulate the objects... | 12/14/1999 |
| 5984671 | Sealing device useful for providing air-seal self-controlled discharge of product from a process equipment such as a vertical shaft kiln This invention relates to a sealing device useful for attachment to a process equipment such as vertical shaft kiln (VSK) for providing air-seal self-controlled discharge of product from the said equipment, which comprises a chamber (1) having at its top ... | 11/16/1999 |
| 5866064 | Sealing apparatus for compartment inlet/outlet of atmosphere facility Elastic rotation rolls can be installed easily at optimal positions, and stable sealing performance can be attained for an extended period of time. Seal discs 47 are disposed at both ends of the roll shaft 46 of each elastic rotation roll 44 in the axial ... | 02/02/1999 |
| 5842855 | Sealing apparatus for inlet/outlet of compartment of continuous heat treatment furnace, continuous vacuum evaporation facility or the like The invention provides a sealing apparatus hardly causing a fire and capable of ensuring a stable sealing performance over a long time is obtained. The sealing apparatus is provided at an inlet/outlet for a metal strip 22 in a bright annealing furnace 21 ... | 12/01/1998 |
| 5778788 | Sheet offset press The invention relates to an apparatus for offset presses, and includes an air-IR drying box, through which ready printed sheets are caused to be conveyed with the aid of a sheet gripping shaft, for the purpose of drying pigment deposited on the sheets. Th... | 07/14/1998 |
| 5769629 | Sealing apparatus for inlet/outlet of atmosphere heat treatment furnace A sealing apparatus securely seals the inlet and outlet of an atmosphere heat treatment furnace. A pair of elastic rolls 26 and a pair of additional elastic rolls 26 hold a metal strip so as to seal the inlet and outlet of the atmosphere heat treatment fu... | 06/23/1998 |
| 5733116 | Heat treatment apparatus A heat treatment apparatus having a heat treatment furnace into which a hydrocarbon gas and an oxidization gas are introduced, wherein an outlet opening of a valve through which a pusher for pushing a work to be heat treated in the heat treatment furnace ... | 03/31/1998 |
| 5709544 | Dual seal for a vacuum heat treating furnace A vacuum heat treating furnace includes a pressure vessel having a wall that defines a chamber wherein metal parts are vacuum heat treated. A fan is disposed inside the chamber for circulating a cooling gas therein. An electric motor is mounted externally... | 01/20/1998 |
| 5693288 | Seal assembly for thermal treatment furnaces using an atmospheric gas containing hydrogen gas A seal assembly (3) located at an entrance and/or exit of a heat treatment furnace for heat treating a metallic strip (S) with no formation of oxide films on the surface thereof, using an atmospheric gas containing hydrogen gas and including an elastic ro... | 12/02/1997 |
| 5685088 | Sealing apparatus for inlet/outlet of atmosphere facility The sealing apparatus of the present invention is intended to enhance the sealing performance and to reduce the rotation loads at the end surfaces of elastic rolls. A sealing apparatus 20 is provided to hermetically seal the inlet/outlet of a bright annea... | 11/11/1997 |
| 5660543 | Method and apparatus for enhanced convection brazing of aluminum assemblies A convection furnace is provided for brazing workpieces in a heated recirculating atmosphere, in which the workpieces are positioned within a heating chamber of the furnace and are alternately heated from different sides in a controlled manner such that a... | 08/26/1997 |
