...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7735338 | Method and device for producing thin glass panes The method of making thin glass panes includes conveying a glass melt through a vertical inlet to a drawing tank with a slit nozzle; drawing a glass ribbon downward from the slit nozzle; setting a total throughput by setting length and cross section of the inlet and... | 06/15/2010 |
| 7516628 | On-line thickness gauge and method for measuring the thickness of a moving glass substrate An on-line thickness gauge (OLTG) and method are described herein that are capable of measuring a thickness of a moving glass substrate. In the preferred embodiment, the OLTG includes a Y-guide and a stabilizing unit that respectively captures and stabilizes the mov... | 04/14/2009 |
| 7414223 | Method and apparatus for monitoring safety glass production or controlling a treatment process The invention relates to a method and apparatus for monitoring safety glass production or controlling a treatment process, such as a tempering process. Information representing a load of glass panels is used in controlling a treatment process, such as heating of gla... | 08/19/2008 |
| 7350379 | Quality control method and quality control apparatus for glass gob in the formation of a glass product The present invention provides a quality control method and a quality control apparatus for use in the formation of a glass product. A feeder mechanism cuts a column-like molten glass pushed out through an orifice thereof into a glass gob and allows each glass gob t... | 04/01/2008 |
| 6938442 | Method for elongating a cylinder of silica glass According to a prior art method for producing a cylindrical component comprised of silica glass, a cylinder comprised of a softened silica glass mass is drawn in a predetermined drawing direction along a drawing axis by means of a drawing device which acts upon said... | 09/06/2005 |
| 6925839 | Method for making capillary splice A method of making a capillary splice includes applying pressure to a bore in a tube, applying heat to a portion of the tube to soften the portion of the tube, and forming a bubble within the bore in the heated portion under the influence of the pressure and heat. W... | 08/09/2005 |
| 6904332 | Supervisor for a hollow glassware production line The supervisor is connected to at least one hollow glassware production line including a plurality of controlled moving members, and is defined by a line agent unit generating a virtual image of the line, a database memorizing all the data required for operation of ... | 06/07/2005 |
| 6848271 | Automated method and device for manufacturing a glass blown object The invention concerns an automated method for producing a blown glass body, in particular a glass wall of an electrochemical sensor, wherein an immersion tube (10), through which air or gas can flow, is immersed into molten glass an amount of molten glass fr... | 02/01/2005 |
| 6815013 | Glass lining application method A new glass lining application method enables stable, uniform glass lining layers to be applied to large glass-lined instruments composed of a stainless base material, the method including forming a thermal spray treatment layer by applying a thermal spray treatment... | 11/09/2004 |
| 6715317 | Process and apparatus for the production of a cylindrical component of glass A glass composition to be softened is fed to a heating zone and is shaped continuously into a cylindrical component in a deformation zone, and the cross-sectional geometry of the component is determined. A feed device, a heating device, and a take-off device are pro... | 04/06/2004 |
| 6502423 | Method and apparatus for making individual glass panes A method and apparatus is described, with which individual rectangular glass panes of thickness between 0.03 mm and 2 mm can be cut from a glass band (2) drawn vertically from a hot forming device (1) in an in-line process with reduced rejects and reduced... | 01/07/2003 |
| 6497119 | Method for producing glass goblets, tumblers and similar hollow glasses, and corresponding device for carrying out said method A device and process for forming hollow glassware comprising producing solid glass blanks in a manufacturing line, storing the blanks, feeding the blanks to a manufacturing line for forming hollow glassware, preheating the blanks during the feeding step, ... | 12/24/2002 |
| 6477862 | Monitoring gob diameter in a glassware forming system A glassware manufacturing system includes at least one blank mold and a loading funnel for feeding molten glass gobs in sequence into the blank mold. A temperature sensor is operatively coupled to the external surface of the funnel for providing an electr... | 11/12/2002 |
| 6438997 | Method of elongating glass preform In a method of elongating a glass preform comprising the steps of holding both ends of the glass preform 1a with a first holding section 2 and a second holding section 3, respectively; moving the first holding section 2 and the second holding section 3 in... | 08/27/2002 |
| 6341173 | Device and method for the determination of diameters of crystals A device and process for the determination of the diameters of a crystal that is pulled from a liquified material. In this connection several video cameras are provided, each of which reproduces its own section along the vertical axis of the crystal or in... | 01/22/2002 |
| 5938807 | Method for manufacturing press-molded glass object and apparatus therefor In press molding, a shaft (metal mold 13) is moved by positional or torque control to cause upper and lower molds to reach a set position slightly before a position where the upper and lower molds are set in a final mold closed state. As soon as the upper... | 08/17/1999 |
| 5917104 | Method for detecting and adjusting the position of a burner during the annealing process of a glass sheet A method for automatically detecting and adjusting the position of a plurality of burners with respect to the edge of a continuous glass sheet is provided. The glass sheet is transported by rolls along the length of a thermal treatment lehr. Detecting and... | 06/29/1999 |
| 5772719 | System for detecting and adjusting the position of a burner during the annealing process of a glass sheet A system for detecting and automatically adjusting the position of a plurality of burners with respect to the edges of a continuous glass sheet is provided. The glass sheet is transported by rolls along the length of a thermal treatment lehr. Sensor eleme... | 06/30/1998 |
| 5716424 | Method of producing glass substrates with improved long-term rigidity at elevated temperatures Described is a process for the manufacture of glass substrates with improved long-term stability at raised temperatures, in which process a glass substrate is provided with a coating, this coating being prepared from a composition, which was obtained thro... | 02/10/1998 |
| 5697996 | Mold positioning apparatus and method A mold positioning apparatus which is used in a pressing apparatus for pressing a work by a plunger and a bottom mold, comprising keys and key guides which are provided on a plunger and a bottom mold, and which are engaged together to restrict a relative ... | 12/16/1997 |
| 5611834 | Method for controlling the free deformation of thermoplastic material The invention is directed to a method for controlling the free deformation of thermoplastic material in an automated process for processing the material to form articles. These articles are especially ampules, small bottles and the like produced from glas... | 03/18/1997 |
| 5501717 | Method and furnace apparatus for bending and tempering a glass sheet supported on a ring mould The invention relates to a method and furnace apparatus for bending and tempering glass sheets. A glass sheet is supported on the same outline mold throughout the entire handling process. A bending furnace (10) is designed to be sufficiently long in the t... | 03/26/1996 |
| 5366527 | Method and apparatus for coating optical waveguide fibers A method and apparatus is provided for controlling the diameter of a coated optical waveguide fiber. The viscosity profile of the coating material is controlled by adjusting the temperature of a portion of the coating assembly based on a measurement of th... | 11/22/1994 |
| 4975103 | Process for producing a planar glass substrate coated with a dielectric layer system A process is provided for producing a planar glass substrate coated with a dielectric layer system in which the individual layers are formed by a chemical vapor deposition coating process. After the layers have been applied, the glass substrate is either ... | 12/04/1990 |
| 4902329 | Method of using external system for locating the geometric center of an internal lens element A system is disclosed for externally locating the geometric center of an internal lens element which requires that an external reference surface be accurately formed so as to lie concentrically with the central axis of the internal lens element. This is a... | 02/20/1990 |
| 4816052 | Method for monitoring the width of material in strip form The image of an edge (MK) of material in strip form, the width of which is to be monitored, is stored and shifted toward both sides parallel to the tolerance limits (TG1, TG2). The coordinates of the picture elements of the tolerance limit (TG1, TG2) are ... | 03/28/1989 |
| 4632688 | Apparatus and method for treating glass sheets An apparatus for synchronizing the movement of glass sheets through a furnace includes a stop for holding the sheets at the entrance to the furnace. An actuator is responsive to a synchronizing signal for moving the stop and releasing the sheet into the f... | 12/30/1986 |
| 4337076 | Ribbon edge detector and system for metering flow of molten glass A pair of glass ribbon edge detectors each have a power source connected to a carbon probe suspended over the molten metal bath of a glass forming chamber and to the molten metal bath to form a pair of capacitors. The voltage output of each capacitor has ... | 06/29/1982 |
| 4330317 | Method and machine for making vials from glass tubing Method and machine for making vials from glass tubing, wherein at least one glass tube (22) with closed bottom is loaded on a rotatable plate (11), having a series of holes circumferentially passing therethrough, and is then grasped by upper pliers (23'),... | 05/18/1982 |
| 4312656 | Glass ribbon width control method in float process In a float process of flat glass production, the width of a glass ribbon formed by discharging a molten glass onto a molten metal bath is controlled in response to the temperature of a molten glass to be supplied to the molten metal bath by regulating a t... | 01/26/1982 |
| 4306898 | Glass ribbon width control method in float process In a float process of flat glass production, the width of glass ribbon is controlled by regulating a tweel to manipulate the rate of supplying a molten glass through the tweel onto a molten metal bath. To minimize a fluctuation of the glass ribbon width, ... | 12/22/1981 |
| 4285745 | Method of determining optical quality of a laminated article An interlayer material is scanned prior to laminating same with glass sheets to generate a thickness variation signal, a wedge angle signal and an optical power signal. The signals are then selectively filtered to determine the thickness variation, wedge ... | 08/25/1981 |
| 4243402 | Apparatus for measuring temperatures in molten metal The invention comprises a temperature sensing device comprising a thermocouple which is protected by a woven cloth. The cloth is impervious to wetting or transmission of the molten material whose temperature is to be measured. A thermocouple further is su... | 01/06/1981 |
| 4076512 | Controlled method for the production of clad glass rod A method of producing clad glass rod of uniform diameter from which an optical fibre is drawn. The rate of drawing of the rod from a glass melt and the diameter of the drawn rod are sensed and the sensed values are fed to a coarse open loop control and a ... | 02/28/1978 |
| 4030902 | Float glass band width control method A method for maintaining constant the width of a glass band manufactured by a float method. A pair of position detectors are positioned within the melted metal bath chamber to produce position signals representing positions of both edges of glass band flo... | 06/21/1977 |
| 4004900 | Manufacture of flat glass at controlled throughput rate The rate at which a continuous sheet of flat glass is manufactured by a float process is controlled by regulating the position of a tweel in a channel or canal used for delivering molten glass for forming in response to the temperature of the molten glass... | 01/25/1977 |
| 3998616 | Manufacture of flat glass having controlled width and nip width Apparatuses for attenuating a body of hot glass moving over a body of molten metal are each provided with a nip sensing device, a linear movement monitoring device and an angular movement monitoring device. The nip sensing device includes a plurality of d... | 12/21/1976 |