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 |
| 7966845 | Glass-shaping mold and method for manufacturing the same A glass-shaping mold includes a steel base member, and a crystallized, machined layer, an intermediate layer and a mold-releasing layer which are sequentially formed on the base member. The machined layer is a layer of nickel alloy containing phosphorus. The interme... | 06/28/2011 |
| 7272879 | Glass molding die, renewal method thereof, and glass fabricated by the molding die A molding die for molding glass and renewal method thereof. The molding die includes a substrate, a nickel-phosphorous alloy layer, with phosphorous content 30 wt % or less, overlying the substrate, an intermediate layer overlying the nickel-phosphorous alloy layer,... | 09/25/2007 |
| 7213414 | Process for producing flat glass The present invention relates to improvement in a method of supplying a glass ribbon in a molten state to be supplied from a glass melting furnace to a flat glass forming apparatus, which can further improve the smoothness of a flat glass after formed. A glass ribbo... | 05/08/2007 |
| 7179536 | Optical element having a low surface roughness, an optical pickup device including the optical element, and a die for making the optical element An optical pickup device for recording and/or reproducing information in an optical information recording medium, comprises a light source to emit light flux having a central wavelength not longer than 500 nm; a converging optical system to converge the light flux e... | 02/20/2007 |
| 7174746 | Method and apparatus for ceramizing the starting glass of glass-ceramics The invention relates to a method for ceramizing starting glass of glass-ceramics into glass-ceramics, comprising at least the following steps: 1.1 the starting glass is heated from an initial temperature T1 to a tempera... | 02/13/2007 |
| 7051554 | Tightening a fiber roll cover Rolls for generally conveying sheets, such as of steel or glass over a roller typically have a steel mandrel and fiber-containing roll cover, with the fiber roll cover pressed between end plates. In a roll end assembly including the end plates there is now provided ... | 05/30/2006 |
| 7000885 | Apparatus and method for forming a sol-gel monolith utilizing multiple casting A mold is configured to form a gel monolith including a first gel portion and a second gel portion. The mold includes a base including a first hydrophobic surface. The mold further includes a tubular outer wall including a second hydrophobic surface, and the outer w... | 02/21/2006 |
| 6993937 | Preform inlet arrangement for an optical fiber drawing furnace, a furnace provided with that kind of inlet arrangement, and a preform equipped to co-operate with that inlet arrangement An inlet arrangement for inserting a preform (3′) into a furnace (1′) for drawing a fiber (2′). The furnace includes an enclosure (4′) at the top of which there are both an opening to allow insertion of a preform which moves in tr... | 02/07/2006 |
| 6923021 | Method and apparatus for fused silica production A fused silica production furnace and methods of producing fused silica are disclosed. The furnace and the methods involve using a foamed refractory having a network of interconnected pores. ... | 08/02/2005 |
| 6880365 | Use of sintered refractory material based on tin oxide for producing glass furnace throats The use of blocks (1, 2, 3, 4) based on sintered tin oxide for producing the throat of a glass furnace. ... | 04/19/2005 |
| 6840062 | Glass bottle molds and method for making the same The bottle mold has dissimilar metal inserts embedded in regions where the bottle mold is most subject to attack by hot glass, such as the neck region and the baffle region, and has a glass contact surface with refined grain size. To fabricate the bottle mold, rough... | 01/11/2005 |
| 6742362 | Coating for tools used to process heat treated glass The invention relates to a coating for tools that are used to process heat treated glass, e.g., molten glass or the like, to reduce the adhesion of said glass. The coating consists at least partially of a system of carbon-based layers and/or hard materials containin... | 06/01/2004 |
| 6403153 | Mechanical locking/constrainment of an active layer on a solid support The present invention broadly relates to the mechanical locking and constrainment of an active layer on a given solid surface, wherein the active layer is formed. In addition, disclosed herein is a macrostructured mold with improved heat-absorbing ability... | 06/11/2002 |
| 6314764 | Method of manufacturing a 1-inch diameter glass substrate for a magnetic disk A method of manufacturing a 1-inch diameter glass substrate for a magnetic disc in which a plate glass is press molded using a mold formed of a super-hard material and having a surface of a prescribed roughness. Ion implantation using nitrogen ions is per... | 11/13/2001 |
| 6314763 | Method of manufacturing a 2-5 inch diameter glass substrate for a magnetic disk A method of manufacturing a 2-5 inch diameter glass substrate for a magnetic disc in which a plate glass is press molded using a mold formed of a super-hard material and having a surface of a prescribed roughness. Ion implantation using nitrogen ions is p... | 11/13/2001 |
| 6276173 | Covering for structures that come into contact with glass objects during their moulding process The invention relates to a contact member or covering (1) for covering structures (4,9) that come into contact with glass objects (12) during their forming process. The covering is a relatively compact non-woven fiber web (2) with apertures (10) and compr... | 08/21/2001 |
| 6044663 | Impregnated vitreous (glassy) carbon graphite liner and heating element for a fiber optic draw furnace The present invention provides an improvement to a fiber optic draw furnace for drawing an optical fiber from a preform. The fiber optic draw furnace has a heating element having a shape for enclosing and heating the preform, and has a graphite liner havi... | 04/04/2000 |
| 6003336 | Method of manufacturing a die for press-molding optical elements A die for press-molding glass optical elements which can press-mold glass optical elements having high melting points and various shapes repeatedly, which includes a base material having high strength on which a cutting layer having heat resistance and fr... | 12/21/1999 |
| 5964915 | Mold for forming glassware A mold having a pair of mold halves defining a mold cavity for forming a glass container. There is an inner shell of the mold and an outer shell and a gap therebetween through which cooling gas flows. Heat transfer elements on the inner shell extend later... | 10/12/1999 |
| 5922099 | Apparatus and method for fabricating tube-shaped glass monolith using sol-gel process There are provided tube-shaped glass monolith fabricating apparatus and method using a sol-gel process. In the tube-shaped glass monolith fabricating method using a tube-shaped glass monolith fabricating apparatus which has an upper mold including cylindr... | 07/13/1999 |
| 5885316 | Nozzle tip for glass injection cartridge A nozzle tip for a glass injection cartridge loaded with a rod-shaped glass material and having a heater for melting down the glass material into a molten state for injection into a mold, the nozzle tip containing: a) a nozzle body having a conical shape conve... | 03/23/1999 |
| 5855641 | Mold for molding optical element Molds for press molding an optical element of glass are disclosed. Proposed are: (1) A mold contains oxygen at the interface between a mold base of the mold and a carbon film formed at least on the molding surface of the mold base with an oxygen amount of... | 01/05/1999 |
| 5766294 | Method and apparatus for producing an optical element using a molding block and a temperature effecting mechanism contacting the molding block for heat exchange A method and an apparatus for producing an optical element capable of performing a molding temperature control required for a plurality of independent molding blocks in a short period of time, and continuously and simultaneously producing a plurality of d... | 06/16/1998 |
| 5762676 | Product for molding glass lenses having difficult shapes An improved tool is provided for pressing glass into a precision optical element having a strong concave surface. The tool is selected from ceramic and metal materials having coefficients of thermal expansion greater than the coefficient of the pressed gl... | 06/09/1998 |
| 5711780 | Mold for molding optical element A mold for press molding an optical element of glass has carbon atoms injected in amounts from 1015 to 1018 ion/cm2 into a molding surface of a mold base of the mold and subjected to further treatment to form on the moldin... | 01/27/1998 |
| 5700307 | Die for press-molding optical elements A die for press-molding glass optical elements which can press-mold glass optical elements having high melting points and various shapes repeatedly, which includes a base material having high strength on which a cutting layer having heat resistance and fr... | 12/23/1997 |
| 5676723 | Mold for forming an optical element There is disclosed a mold for pressing molding of an optical element of glass. On at least the molding surface of the mold base of the mold, there is formed a mixing layer which consists of carbon and at least one of the elements constituting the mold bas... | 10/14/1997 |
| 5630858 | Temperature resistant material, particularly as substitute for asbestos in devices for handling objects of hot glass A temperature resistant material consisting of fiber-reinforced glass and fiber-reinforced ceramics, respectively, is described as asbestos substitute in devices for handling hot glass, glass ceramics and ceramics objects.... | 05/20/1997 |
| 5382274 | Mold with film of 0-5 atom % hydrogen and molding method utilizing same A mold for use for press-molding an optical element, in which a molding surface of a mold base material is coated with a hard carbon film containing 0-5 atom% of hydrogen. It has a spin density of 1×1018 spin/cm3 or less and a film ... | 01/17/1995 |
| 5328496 | Apparatus including mold having covering for annular bending/tempering molds An apparatus for bending/tempering glass sheets raised to their softening point with a view to their bending and tempering includes an upper plate mold and a lower annular mold on which the glass sheets are deformed, and with respect to which the edge of ... | 07/12/1994 |
| 5118335 | Tempering ring design Apparatus for handling a hot glass sheet during conveyance from a hot atmosphere to a cold atmosphere comprising a ring-like member having an upper surface engaging a glass sheet outline that consists essentially of a phenolic resin reinforced with fibers... | 06/02/1992 |
| 5075076 | Novel palladium-based alloys containing tin and their use in the glass industry The invention relates to a novel palladium-based alloy. This palladium-based alloy comprises tin in an amount, preferably of 5 to 20% by weight, which is sufficient to impart an acceptable resistance to corrosion by molten glass, preferably being essentially e... | 12/24/1991 |
| 5051235 | Novel palladium-based alloys containing indium bismuth, silver and copper The invention relates to a novel palladium-based alloy. This palladium-based alloy comprises at least one additional element selected from indium, bismuth, silver and copper, in an amount sufficient to impart an acceptable resistance to corrosion by molten gla... | 09/24/1991 |
| 5032162 | Assembly in the annealing section of a glass tempering apparatus The invention relates to an assembly in the annealing section of a glass tempering apparatus, comprising a glass sheet supporting rollers and cooling air blow boxes disposed above and below a glass sheet. A blast pressure applied to the bottom surface of ... | 07/16/1991 |
| 4973347 | Apparatus for cooling of a mold of an IS machine or an RIS machine for producing hollow glass articles A cooling apparatus for one or more molds on an IS or RIS machine for the production of hollow-glass articles has a cooling chamber below the or each mold subdivided into upper and lower parts at a horizontal planar point with the upper part being detacha... | 11/27/1990 |
| 4889548 | Use of an oxide ceramic material for compression molds for shaping elements made from glass or a glass-containing ceramic and having high surface quality and dimensional accuracy The use is described of oxide ceramic materials for compression molds for shaping elements made from glass or a glass-containing ceramic and having high surface quality and tight tolerances. The materials are polycrystalline, monophasal or polyphasal mate... | 12/26/1989 |
| 4882827 | Process for producing glass mold According to the present process for producing a glass mold, a base for a glass mold to be produced is subjected to a sputtering treatment using an inert gas and graphite as a target at a mold base temperature of 250°-450° C., and thereby is formed on t... | 11/28/1989 |
| 4883528 | Apparatus for molding glass optical elements An apparatus for molding glass optical elements by means of at least one molded glass mold is disclosed. The optical element, which may be a lens and which may be formed of glass, is molded within an apparatus that comprises a pair of molds of which at le... | 11/28/1989 |
| 4830655 | High temperature-resistant material for devices used for forming glass optical elements with high surface quality Inorganic material resisting to high temperatures for installations intended to form structural glass elements which, owing to the precision and the quality of the forming surface, do not require after forming any other surface treatment. The material is ... | 05/16/1989 |
| 4525196 | Glass sheet handling devices Glass sheet handling devices are provided with glass sheet engaging surfaces composed of a phenolic resin reinforced with fibers of an aromatic polyamide composition. In a specific embodiment of this invention, a sufficient number of said fibers extend to... | 06/25/1985 |
