Bizarre Patents
A banana protective device for storing and transporting a banana carefully.
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 |
| 7412849 | Device for blank pressing optical glass bodies The device for blank pressing glass bodies includes a first rotary indexing table with preforms for forming parisons from glass gobs; a second rotary indexing table having pressing molds and pressing tools for pressing the parisons into final form after formation in... | 08/19/2008 |
| 6672107 | Quartz glass crucible and process for the production thereof In order to provide a quartz glass crucible distinguished by high purity, high opacity and/or low transmissibility in the IR spectrum, it is proposed on the basis of a known quartz glass crucible of opaque quartz glass with a crucible body symmetrical in ... | 01/06/2004 |
| 6553787 | Method for manufacturing quartz glass crucible Present invention suppresses undesirable effects of the bubbles trapped in a silica glass crucible on single crystallization during the pulling process under a high-temperature load. When raw material powder is melted in a mold 1, graphite components of e... | 04/29/2003 |
| 6546754 | Apparatus for silica crucible manufacture An apparatus for manufacture of quartz crucibles comprising a hollow mold having a bottom wall portion and a side wall portion and defining a hollow space therein. The walls of the mold include a plurality of openings to facilitate gas passage therethroug... | 04/15/2003 |
| 6415630 | Method and device for producing a homogenous sheet of quartz glass without streaks In a method for producing a streak-free quartz glass sheet with a highly homogeneous degree of refraction, a quartz glass rod is lowered into a melting pot parallel to a longitudinal axis of the quartz glass rod. A cross-section of the melting pot is larg... | 07/09/2002 |
| 6405565 | Chalcogenide glass tubing fabrication An apparatus and process for fabricating tubing used in the making of chalcogenide fibers. The apparatus features a three-sectioned melt/spin ampoule that allows for fabricating the chalcogenide tubing without introducing impurities and contaminants, in a... | 06/18/2002 |
| 6314766 | Apparatus for minimizing air infiltration in the production of fused silica glass Fused silica boules (19) having improved radial homogeneity are produced by controlling the air flow around the boule (19) during its formation. The boule is formed in a cup-like containment vessel (13) which collects silica particles from a plurality of ... | 11/13/2001 |
| 6266979 | Spinner disc alloy Cobalt alloys are disclosed for use in the fabrication of spinner discs for fiberizing molten glass into fibers in rotary fiberizing processes. The cobalt alloys fall within the following ranges, in percentage by weight, Co 22.0-54.0; Cr 30.0-34.0; Ni 9.0... | 07/31/2001 |
| 6143073 | Methods and apparatus for minimizing white point defects in quartz glass crucibles Methods and apparatus for manufacturing silica crucibles 9 containing few, if any, white point defects. The white point defects are reduced by decreasing the amount of silica vapor condensing on electrodes 4,5,6 used in the manufacturing process. The sili... | 11/07/2000 |
| 5976445 | Method of producing zirconia fused cast refractories A method for producing zirconia fused cast refractories, which comprises casting zirconia fused cast refractories containing at least 33 wt % of a ZrO2 component utilizing a mold, wherein the mold is rotated on a rotation axis, so that at least... | 11/02/1999 |
| 5776397 | Method of producing zirconia fused cast refractories A method for producing zirconia fused cast refractories, which comprises casting zirconia fused cast refractories containing at least 33 wt % of a ZrO2 component utilizing a mold, wherein the mold is rotated on a rotation axis, so that at least... | 07/07/1998 |
| 5762672 | Method for producing a quartz glass crucible In a quartz glass crucible obtained by heating and fusing a rotating layer (3) charged with a powder of silicon dioxide, impurity elements are controlled so that copper, chromium, and nickel each amount to 0.5 ppb or less, iron amounts to 120 ppb or less,... | 06/09/1998 |
| 5573566 | Method of making a quartz dome reactor chamber A method of making a quartz dome for a reactor chamber from a substantially flat quartz disk. The quartz disk is placed on a graphite ring which is rotated. The quartz disk is heated until the disk is softened slightly and it begins to slump. The softened... | 11/12/1996 |
| 5312471 | Method and apparatus for the manufacture of large optical grade SiO2 glass preforms The disclosed process involves the feeding of particulate SiO2 into a rotating cylindrical furnace in which a gas plasma arc has been established, for melting the feed at a temperature of at least 2400° C. The feed rate is regulated so that th... | 05/17/1994 |
| 5082484 | Apparatus for making quartz glass crucibles An apparatus for making a quartz glass crucible comprises a housing having a first chamber and a second chamber therein, a rotation crucible having an inner surface corresponding in configuration to the quartz glass crucible, means for rotating the rotati... | 01/21/1992 |
| 5015279 | Apparatus for extracting spin cast fused silica objects Apparatus for removing a fused silica glass object from a rotating pot has a gripping member which grips the upper rim of the fused silica glass object and a rotational synchronization member connected to the gripping member which is lowered vertically in... | 05/14/1991 |
| 4998872 | Dental centrifugal casting apparatus A dental centrifugal casting apparatus includes a crucible for receiving a dental casting material, a crucible holding unit for holding the crucible, a heating furnace such as a high-frequency induction heating furnace for heating and melting the dental c... | 03/12/1991 |
| 4964902 | Method of extracting spin cast fused silica This invention relates to a method of making an object of silica glass, such as a crucible, according to which a pot capable of rotating about its axis is filled with a refractory pulverulent material. The pot is rotated and a cylindrical cavity is formed... | 10/23/1990 |
| 4963178 | Apparatus for making quartz glass crucibles A flat-bottomed quartz glass crucible for the manufacture of monocrystalline silicon is made by disposing granular quartz particles on a flat base in a cylindrical mold. A vacuum is drawn on the particles through vacuum holes in the base to retain the par... | 10/16/1990 |
| 4935046 | Manufacture of a quartz glass vessel for the growth of single crystal semiconductor A quartz glass crucible adapted for use in a process for pulling a single crystal semiconductor material having an opaque outer substrate of a quartz glass with a relatively high bubble content and an inner transparent glass layer which is substantially f... | 06/19/1990 |
| 4729780 | Centrifugal casting device A centrifugal casting device adapted to mold and cast a casting material melted by a casting material melting means, by the centrifugal force of a rotary arm, in a mold disposed on the centrifugal side of the arm through a casting crucible disposed at one... | 03/08/1988 |
| 4632686 | Method of manufacturing quartz glass crucibles with low bubble content In the manufacture of a quartz glass crucible of low bubble content, a first layer of granular quartz material is disposed on the interior of a rotating mold through the walls of which a vacuum can be drawn. A second layer of finer quartz material is then... | 12/30/1986 |
| 4609337 | Apparatus for inserting molds filled with a monomer mixture into rotating polymerization columns An apparatus is provided for inserting molds containing a dosed monomeric mixture into a rotating polymerizing column by means of an alternate pushing and releasing of a column of molds falling from tubular magazines connected to said polymerizing column.... | 09/02/1986 |
| 4568501 | Method and apparatus with automatic feed means for centrifugally casting articles A centrifugal casting device employing a rotatable polymerization column adapted to accommodate a plurality of vertically aligned molds and a rotatable mold-dispensing magazine disposed at an angle to the polymerization column and adapted to dispe... | 02/04/1986 |
| 4517138 | Device and method for centrifugally casting articles A device and method for spin casting articles such as lenses employing a polymerization tube in conjunction with a plurality of molds such that the tube is adapted to accommodate the plurality of molds in an interference fitting and sliding relationship s... | 05/14/1985 |
| 4517139 | Device and method for centrifugally casting articles on a continuous basis A centrifugal casting device and method employing a rotatable polymerization column adapted to accommodate a plurality of vertically aligned molds and being associated with an arrangement of advancing means and mold feeding means which are synchronized to... | 05/14/1985 |
| 4517140 | Device and method for centrifugally casting articles A device and method for spin casting articles, such as lenses, employing a rotatable polymerization column in conjunction with a plurality of molds such that the column is adapted to accommodate a plurality of gravity fed molds in a loose mating engagemen... | 05/14/1985 |
| 4516924 | Retaining means for device for centrifugally casting symmetrical or asymmetrical articles A device for the centrifugal casting of articles in a rotatable polymerization column which includes retaining means disposed in the lower end of the column for communicating with a mold therein whereby the rotational speed of said mold and other vertical... | 05/14/1985 |
| 4416680 | Method of making quartz glass crucibles, and apparatus carrying out the method To make quartz glass crucibles suitable for drawing of single crystal silicon for electronic semiconductor applications, granular crystalline quartz or amorphous quartz glass is introduced into a rotating hollow mold which has gas-pervious wall regions at... | 11/22/1983 |
| 4392805 | Centrifugal casting apparatus A centrifugal casting apparatus comprises a mold mounted for rotation about the vertical axis thereof and having a bottom provided with a through axial opening. A member having a helicoidally shaped surface is axially mounted within the opening in the bot... | 07/12/1983 |
| 4389235 | Burner for manufacture of fused quartz or fused silica ingots The elongated burner is described which is capable of providing a ribbon of flame through which particulate material as small as 1 micron is uniformly dispersed and transported onto a rotating forming surface for formation of an ingot. In a preferred embo... | 06/21/1983 |
| 4217124 | Method of forming conoid surfaces Conoid surfaces can be generated by rotation of a material at different angles and under differing constraints. An axis of 45° can produce hyperboloids; with perpendicular axes, concentric spheres can be produced; magnetic fields can be used to shape the... | 08/12/1980 |
| 4188201 | Apparatus for forming an ingot in a rotating housing The apparatus for manufacturing an ingot includes a rotatable housing with an inner surface defining an opening therethrough along the rotational axis of the housing. The housing is rotated about the rotational axis. The housing includes a layer of insula... | 02/12/1980 |
| 4120684 | Mold ring transfer apparatus An improved apparatus for the transfer of mold rings in a centrifugal casting process. One type of forming process for the funnel portions of color television picture tube envelopes utilizes a centrifugal casting process for the glass. This process requir... | 10/17/1978 |
| 4010020 | Apparatus for forming curved surfaces by rotation Conoid surfaces can be generated by rotation of a material at different angles and under differing constraints. An axis of 45° can produce hyperboloids; with perpendicular axes, concentric spheres can be produced; magnetic fields can be used to shape the... | 03/01/1977 |
| 4000999 | Centrifugally casting hollow glass body around vapor shield A vapor shield supporting ring is attached to the envelope of a vacuum device. The supporting ring is embedded in the inner wall of the envelope and extends into the interior of such envelope. A welding flange is mounted on the interior portion of the rin... | 01/04/1977 |
| 3984240 | High strength corrosion resistant cobalt-base superalloy A cobalt-base alloy, particularly suitable for high temperature molten glass environments, and articles manufactured from the alloy, preferably by casting, are disclosed.... | 10/05/1976 |
