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| Number | Title | Issue Date |
| 7392667 | Method and an apparatus for shaping a tubular object made of thermoplastic material The invention relates to a method for shaping a tubular object made of glass or glass ceramics or any other thermoplastic material, comprising the following method steps: the object is heated up to softening; an in... | 07/01/2008 |
| 6935137 | Method of and apparatus for forming discharge tubes of low-pressure discharge lamps There is disclosed a method for forming a discharge tube for a low-pressure discharge lamp. In the method, an end of a section of the discharge tube is fastened with first clamping means, and a second end of the section in held in an oriented position. The section i... | 08/30/2005 |
| 6820444 | Method and apparatus for forming glass coiled tube An apparatus for forming glass coiled tubes from a source of glass in which a molten glass thread is drawn, and a method for forming glass coiled tubes. The apparatus has a shaping mandrel having a first end and an opposing second end, having a desired shape for rec... | 11/23/2004 |
| 6810691 | Method for making glass tubing with multiple bores A method of making glass tubing includes assembling together a first glass rod having at least one bore and a second glass rod having at least one bore to form a single glass unit, shaping an outer surface of the glass unit to a desired cross-section, and drawing th... | 11/02/2004 |
| 6789398 | Mold incorporating a heat source and apparatus and method for using such molds A heat source is formed within one piece of a multi-piece mold designed to shape a glass tube. The one piece of the mold can then be used as a source of intense heat to render the glass malleable and to also contribute to shaping the tube in conformance with the mol... | 09/14/2004 |
| 6766662 | Method of manufacturing glass parts for connecting optical fibers, and glass parts for connecting optical fibers manufactured using the methods There are provided a method of manufacturing a glass part for connecting optical fibers, which allows insertion of optical fibers into the internal hole of the glass part smoothly, and glass parts for connecting optical fibers manufactured using the method. Predeter... | 07/27/2004 |
| 6568218 | Apparatus for shaping glass tubes Apparatus for shaping a selected end region and the opening at a selected end of a hollow cylindrical glass tube includes a support member for holding and rotating the tube in a controlled manner and a heat source for supplying sufficient heat to the sele... | 05/27/2003 |
| 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 |
| 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 |
| 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 |
| 6134920 | Method of preparing glass cartridges Methods of plastically forming an axially extended zone of the interior surface of a hollow glass tube heated to its forming temperature employ a generally cylindrical embossing mandrel connected to a driving shaft. The hollow glass tube and the embossing... | 10/24/2000 |
| 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 |
| 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 |
| 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 |
| 5766295 | Method of manufacturing a spiral fluorescent tube A fluorescent tube which is used for bulb-type fluorescent lamps is spirally wound, so that the effective length of the tube is increased. While a fluorescent tube is kept vertical, it is rotated and heated evenly at the part to be wound to a glass soften... | 06/16/1998 |
| 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 |
| 5599368 | Device and process for the production of multiple-fold, single-tube glass vessels Multiple fold, single tube glass vessels, as well as a process and device for producing multiple fold, single tube glass vessels. An even number of parallel glass tubes open at both ends are assembled under the influence of heat into a multiple fold, sing... | 02/04/1997 |
| 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 |
| 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 |
| 4883529 | Circular tube shaping apparatus An apparatus for shaping a tube into circle includes a dummy rod to be engaged to a rear end of the tube for constituting an extention of the tube and a support for supporting the combination of the tube and the dummy rod so that the combination is movabl... | 11/28/1989 |
| 4830648 | Method of making a unitary tubular generally U-shaped discharge vessel, particularly for compact fluorescent lamps To prevent weakened corners when forming a U-shaped discharge tube with sharp corners (28, 29) during a bending operation from a straight tube, two glass tubes (1, 3) having a wall dimension suitable for a compact fluorescent tube are fused to a central t... | 05/16/1989 |
| 4477273 | Method of and apparatus for straightening and configuring a preform tube from which lightguide fiber is drawn A preform from which lightguide fiber is drawn is made by depositing optically suitable layers of doped silicon dioxide on an inner wall of a rotating glass substrate tube which is exposed to a moving zone of heat during a deposition mode and during a col... | 10/16/1984 |
| 4343643 | Sealing articles into a glass envelope and compound holder therefor A holder (55) for supporting in alignment a plurality of spaced electrodes (18) and (19) to be sealed into a corresponding plurality of envelopes (14) includes a metal base (82) which supports a stripper plate (87). A plurality of posts (36) extend from t... | 08/10/1982 |
| 4325726 | Double jawed shaping tool for glass vials The invention provides a precision tooling machine for final finishing of a preliminary formed shoulder on the open end of a heated glass vial blank. The shoulder of the vial is heated and the vial is rotated and horizontally advanced between a pair of co... | 04/20/1982 |
| 4319906 | Method and apparatus for press sealing an arc tube body section A method and apparatus for press sealing a tubular quartz arc tube body section about a ribbon-type metallic seal. The method includes applying different intensities of heat to the quartz arc tube body section to be pressed in such a manner that four port... | 03/16/1982 |
| 4157909 | Apparatus for forming mercury-filled capillary tubes The disclosure is of apparatus including two pairs of metal gripping blocks held together by a spring and mounted adjacent to wedge blocks carrying wedges for opening each pair. An operating plate is provided which drives the apparatus to cause the wedge ... | 06/12/1979 |
| 4142883 | Machine for working glass tubes and in particular for making containers from glass tubes The invention relates to a machine for working glass tubes, with several chucks circulating on a common axis and sweeping past several processing stations, there being mounted above each chuck a stepwise rotating magazine storing several glass tubes, each... | 03/06/1979 |
| 4111677 | Apparatus for drawing glass tubing Method and apparatus for providing a glass tube with a uniform nozzle portion, i.e., one which has a true centerline. The method involves suspending the tube on vertically space suspension points therealong, with the lower of the suspension points being a... | 09/05/1978 |
| 4092142 | Machine for making containers from glass tubes The invention relates to a machine for making containers from glass tubes, with several chucks circulating through a succession of processing stations, each chuck having jaws to grip a glass tube or container, and with the chucks being brought successivel... | 05/30/1978 |
| 4080189 | Machine for manufacturing phials, ampoules or the like from thermoplastic substances, in particular glass The invention relates to a machine for manufacturing phials, ampoules or the like from thermoplastic substances, in particular glass, having a number of holders capable of rotating around their own axes and around a central axis, which are distributed aro... | 03/21/1978 |
