Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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 |
| 7401478 | Manufacturing methods of double-spiral arc tubes The manufacturing method comprises: a softening step of softening a straight glass tube in a heating furnace; a moving and placing step of moving the softened glass tube so that the glass tube is placed on the top of the mandrel; and a winding step of winding the gl... | 07/22/2008 |
| 7302814 | Apparatus for preventing deflection of substrate tube An apparatus for producing an optical fiber preform to perform the deposition process by modified chemical vapor deposition. The Apparatus comprises a main heat source location sensor (800) for detecting the location of a main heat source for heating a substr... | 12/04/2007 |
| 7290408 | Apparatus for supporting a preform having a supporting core The invention relates to apparatus for supporting a preform manufactured in an installation for manufacturing or building up preforms having supporting cores, said installation including at least rotation means having a horizontal axis of rotation and two mounting p... | 11/06/2007 |
| 6739151 | Method of producing a quartz glass tube and drill body for performing the method In a known method of producing a quartz glass tube (22), a cylinder (21) of quartz glass which rotates about a rotational axis (27) is continuously fed to a heating zone (24), softened therein in portions starting from one end, and the so... | 05/25/2004 |
| 6571581 | Contactless extrusion apparatus An extrusion system for producing a desired extrusion profile on a continuously moving work piece has a die containing two or more pressurized fluid extrusion cells therein, through which the work piece passes. Fluid under pressure id directed against the... | 06/03/2003 |
| 6536239 | Apparatus and method for shaping glass tubes with molds A mold for shaping the end region and the opening at a selected end of a first, hollow, generally cylindrical, glass tube to enable a second tube, of smaller diameter than the first tube, to be inserted snuggly a first distance within the selected end of ... | 03/25/2003 |
| 6415631 | Method and apparatus for making an article from a formable material A method and apparatus are described for making an article such as the body of a needleless injector capsule, from a formable material, such as glass, the article having a cavity communicating with the exterior via an orifice. A blank having an open end i... | 07/09/2002 |
| 6363750 | Automatic pipette puller and forge A glass tube is positioned over a heater and stretched until drawn apart into two drawn portions. A controlled pulling force is applied to the tube by a powered driver such as a linear motor. After separation, one of the drawn glass portions is reposition... | 04/02/2002 |
| 6314767 | Apparatus for manufacturing an optical fiber preform and including a ring for trapping and diffusing light radiation An apparatus and method for manufacturing an optical fiber preform from a tube of vitreous material. A holding device holds the tube during manufacture of the preform and a heater supplies the necessary heat energy for preform manufacturing. A diffuser is... | 11/13/2001 |
| 6314765 | Method and apparatus for controlling the shape and position of a deformable object A method and apparatus for controlling the shape and position of a deformable object are described. At least a portion of an object is heated to a temperature sufficient to render the heated portion deformable by a force. An image profile of the heated po... | 11/13/2001 |
| 6216493 | Method and apparatus for making an article from a formable material A method and apparatus are described for making an article such as the body of a needleless injector capsule, from a formable material, such as glass, the article having a cavity communicating with the exterior via an orifice. A blank (1a) having an open ... | 04/17/2001 |
| 6209353 | Method for producing an object having a flange and apparatus therefor A known method for producing an object having a flanged tubular portion at the outer periphery, comprises supplying a continuously extended, cylindrical body made of the flange material to a welding zone at the tubular portion of the object and welding th... | 04/03/2001 |
| 6209354 | Method of preparing silica glass article A method of preparing a high purity massive synthetic silica glass article. The method includes a homogenizing step, wherein a rod shaped synthetic silica glass material has a greater optical homogeneity in a plane perpendicular to its rotational axis tha... | 04/03/2001 |
| 6079230 | Apparatus for preparing quartz micropipettes The apparatus for preparing quartz micropipettes includes a pair of carriers mounted on a linear ball bearing guide which grasp opposite ends of a quartz glass capillary tube. A pair of miniature torches fueled by a mixture of oxygen and propane simultane... | 06/27/2000 |
| 5970746 | Method for preparing silica glass article A method of preparing a ball-shaped synthetic silica glass optical article. The method includes a step of providing a rod-shaped synthetic silica glass having end faces at both sides thereof and having fewer cords per unit volume viewed in a direction per... | 10/26/1999 |
| 5843199 | Method and device for fire-polishing a lengthwise extended glass body During the fire-polishing of a lengthwise extended glass body (3), for example a preform for drawing optical fibers, the glass body (3) is held by a holding device (5, 7), and is heated by a burner (23) moving at a variable advancing speed parallel to the... | 12/01/1998 |
| 5824130 | Apparatus for manufacturing spiral fluorescent tube A device for manufacturing a spiral fluorescent tube is disclosed. The device includes a rod aerially supported in a first predetermined direction; a first clamp supporting a straight fluorescent tube in a second direction which is at right angles to the ... | 10/20/1998 |
| 5817161 | Optical element forming method In forming a piano-convex lens from a column-like lens blank by heating the blank to a temperature higher than the transition temperature thereof and by pressurizing an upper die with a closed space formed between the blank and the upper die, there are al... | 10/06/1998 |
| 5788733 | Device for the shaping of glass tubes In a device for shaping glass tubes (32), the shaping tools (3, 4), which are designed as shaping rollers, are mounted on a rotary table (2) that encloses the glass tube (32) and that rotates at a speed that is several times higher than the speed of rotat... | 08/04/1998 |
| 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 |
| 5711781 | Apparatus and method for heating an elongated glass An apparatus for heating an elongated glass body, which, for example, may be used as a pre-form for the drawing of glass fibers, includes a rotatable first chuck wherein the first end of the elongated glass body may be rotatably secured. In addition the a... | 01/27/1998 |
| 5695539 | Device for the shaping of glass tubes In order to shape the necks of glass tubes (1) on glass processing machines, use is made of a device with two shaping tools, one of which takes the form of a ring (3) surrounding the glass tube (1) and the other shaping tool consisting of a roller (2).... | 12/09/1997 |
| 5683483 | Manufacturing method and equipment for large, high-purity flat or curved quartz glass plate The present invention provides large, high-purity quartz glass plate with a high degree of smoothness and flatness, its manufacturing method and equipment. The invention is characterized by the procedure in which a quartz glass tube with an opening over a... | 11/04/1997 |
| 5669950 | Spout forming assembly and method therefor A spout forming assembly for glassware and a method therefor in which the assembly includes a spout forming device for forming a pour spout on the edge of a piece of glassware, an actuation device for actuating the forming device, and a control device for... | 09/23/1997 |
| 5630859 | Optical element forming method In forming a plano-convex lens from a column-like lens blank by heating the blank to a temperature higher than the transition temperature thereof and by pressurizing an upper die with a closed space formed between the blank and the upper die, there are al... | 05/20/1997 |
| 5370843 | Pipette puller A pipette puller has a heater coil X-Y position controlled by two knobs. The coil can be vertically positioned along a pipette by moving a third knob for the Z positioning. A dual-heat heat control provides two pre-set temperatures. A movable shield cover... | 12/06/1994 |
| 5322542 | Method of and apparatus for chamfering edge of glass vessel A glass vessel edge chamfering method and apparatus wherein heat energy can be controlled readily and chamfering of a glass vessel having a deformed profile, local chamfering and simultaneous processing of the opposite inner and outer sides of a lip of a ... | 06/21/1994 |
| 5244486 | Fluorescent tube coiling apparatus An apparatus is provided for coiling fluorescent tubes, so that the tubes may be placed within a bulb. The apparatus includes a rotatable turntable having a plurality of ovens thereon. Each oven has a lever to enable the oven to be opened for placement of... | 09/14/1993 |
| 5221306 | Method and apparatus for modifying the transverse cross section of a body The transverse cross section of a body is modified by the steps of: a) determining the extent to which the body has material in excess of a desired shape at a plurality of points, b) exposing the body to a local heat source having a temperature sufficient... | 06/22/1993 |
| 5203691 | Torch assembly for heating glassy tubes A preform tube (31) is caused to be collapsed into a preform rod by causing a heat zone (54) provided by a torch assembly (50) to traverse the tube longitudinally in a plurality of passes. During this so-called collapse mode, a muffle tube (100) encloses ... | 04/20/1993 |
| 5174803 | Apparatus for heating glassy tubes A preform tube (31) is caused to be collpased into a preform rod by causing a heat zone (54) provided by a torch assembly (50) to traverse the tube longitudinally in a plurality of passes. During this so-called collapse mode, a muffle tube (100) encloses ... | 12/29/1992 |
| 5141548 | Method of manufacturing a capillary flow cell A capillary flow cell in which a capillary (9) partially extends along the optical path of the cell and has its two end portions (12, 13) bent to achieve an essentially Z-shaped configuration. A template (1) has a central bore (2) in which the middle part... | 08/25/1992 |
| 5090978 | Methods of collapsing glass tube A preform tube (31) is caused to be collapsed into a preform rod by causing a heat zone (54) provided by a torch assembly (50) to traverse the tube longitudinally in a plurality of passes. During this collapse mode, a muffle tube (100) encloses that porti... | 02/25/1992 |
| 5041152 | Apparatus for bending tubular glass A glass tube bending apparatus according to the present invention includes a drum for bending a heated/softened glass tube into a circular shape, a first driving device, coupled to the drum, for moving the drum straight, and a second driving device, coupl... | 08/20/1991 |
| 5030266 | Apparatus for adjusting the configuration of optical substrates In order to provide a substrate such as an optical preform rod (24) which is suitable for insertion into a tube and which has a transverse cross section that is substantially circular and disposed concentrically about a longitudinal axis of the substrate ... | 07/09/1991 |
| 5022909 | Tube processing machine The invention is a machine for processing tubes. Preferably the machine is adapted to create glass flares by flaring an end of each tube and then cutting a length off the flared end. The machine includes several holding devices, each of which is adapted t... | 06/11/1991 |
| 4838915 | Method for heating thick-walled glass tubes and apparatus therefore A method for heating thick-walled glass tubes, particularly quartz tubes, in the manufacture of optical fibres while using microwave energy. According to the invention, the tube (5) is pre-heated to a temperature of about 1000° C.-1500° C., preferably i... | 06/13/1989 |
| 4832726 | Holding chuck for glass-working machines In a holding chuck (3) for tubes of glass-working machines, clamping jaws (7) which are guided in a basic body (5) and have, at their ends, plates (9) provided with a bore for receiving a ball (12) are used. Each ball is guided in a bore (14) in a thrust ... | 05/23/1989 |
| 4820321 | Method and apparatus for fabricating an expanded beam cylindrically terminated optical fiber taper An apparatus and method are disclosed for fabricating an expanded beam cylindrical terminated optical fiber taper from a reduced diameter preform rod. The present invention comprises uniformly heating the circumference of a predetermined portion at an int... | 04/11/1989 |
| 4808204 | Method and apparatus for producing bends in optical fibers An apparatus for producing bends in optical bends in optical fibers comprising a pair of plates hingedly connected along one edge of each of the plates so that the plates may lie in face-to-face contact and may be hingedly separated, means defining a cavi... | 02/28/1989 |
