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...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 |
| 7730746 | Apparatus to prepare discrete hollow microsphere droplets Apparatus to eject on demand discrete hollow microsphere droplets that are characterized by a highly regular and predictable spherical shape, devoid of tails or other irregularities common in the prior art with a selected pure gas contained in the center. With this ... | 06/08/2010 |
| 7703304 | Apparatus for quantitative solidification of molten salt by using vacuum transfer and dual vessel Provided are an apparatus and method for manufacturing a solidified salt that is easy to treat in size and shape by using a vacuum transfer and a dual vessel. In the apparatus for quantitative solidification of a molten salt, a molten salt is introduced into a first... | 04/27/2010 |
| 6848272 | Method and apparatus for delivering a cased glass stream Apparatus for forming a cased glass stream having an inner core glass surrounded by an outer casing glass that includes a spout for delivering core glass from a first source through a first orifice. A second orifice is vertically spaced beneath and aligned with the ... | 02/01/2005 |
| 6622525 | Apparatus for delivering a cased glass stream Apparatus for forming a cased glass stream having an inner core glass surrounded by an outer casing glass that includes a spout for delivering core glass from a first source through a first orifice. A second orifice is vertically spaced beneath and aligne... | 09/23/2003 |
| 6318123 | Method for granulating a liquid slag bath and device for carrying out the method The method for granulating liquid slag melts, in particular blast furnace slag, in which the melt (2) is ejected into a cooling chamber via a slag tundish (1) and in which fluid under pressure, in particular compressed gas, vapor or pressurized water, is ... | 11/20/2001 |
| 5851258 | Backup structure for a pipe for feeding a molten substance of high temperature A backup structure for a pipe for feeding a molten substance of high temperature has a pipe and a thermal insulation material surrounding the pipe wherein the pipe is provided with a plurality of projections on its outer periphery at predetermined interva... | 12/22/1998 |
| 5820652 | Sealing system for the engagement of a container beneath a melting furnace A sealing system for the engagement of a container (24) beneath a melting pot containing a molten material, comprising a shell (30) surrounding a nozzle (40), the nozzle being located in the axis of the neck of the container and permitting the pouring of ... | 10/13/1998 |
| 4980091 | Method and device enabling molten radioactive glass to be cast into a container A method and device for enabling a molten radioactive glass to be cast from a crucible (2) situated in a top cell (1) and a container (4) situated beneath said crucible in a bottom cell (3), the radioactive glass flowing vertically downwards along a casti... | 12/25/1990 |
| 4666494 | Method of preparing a suction mold for receiving vitrified radioactive waste materials and apparatus therefor Suction molds used in the suction removal process must first be prepared ore they can receive vitrified radioactive waste materials. A method is disclosed for preparing the suction mold which includes a suction pipe welded into the base of the mold with ... | 05/19/1987 |
| 4372771 | Methods and apparatus for extruding articles A fused silica glass tube (26) is extruded from a melt (21) in a chamber (11) pressurized with an inert gas. A shield is placed in close, spaced, relation to the melt (21) surface during the gas pressure extrusion process to substantially eliminate losses... | 02/08/1983 |
| 4283214 | Gob feed dial for dual glass base machine A method and apparatus for forming and delivering insulating glass in gob form to a lamp base making machine from a continuous stream of molten glass. A rotating dial severs the glass stream into uniform gobs and during rotation forms the gobs into a ball... | 08/11/1981 |
| 4171966 | Method of and apparatus for production of plate glass A method and apparatus is disclosed for the production of plate glass. A glass melting furnace containing molten glass connects with an outflow furnace in such fashion that central layers of molten glass in the glass melting furnace are conveyed to the ou... | 10/23/1979 |
| 4066428 | Method of applying vacuum while constricting the neck portion Molding of hollow glass articles wherein a gob flows from a feeder into a mold and forms a hollow tube as it enters the mold, and a pressure differential is applied across the tube so that the tube is shaped in the mold to form the hollow article. During ... | 01/03/1978 |
