Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 6918531 | Metal foil connection, honeycomb body, metal foil brazing medium particle fraction for metal foils and method for manufacturing a metal foil connection A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the braz... | 07/19/2005 |
| 6732914 | Braze system and method for reducing strain in a braze joint A system for joining a pair of structural members having widely differing coefficients of thermal expansion is disclosed. A mechanically “thick” foil is made by dispersing a refractory metal powder, such as molybdenum, niobium, tantalum, or tungsten into a quant... | 05/11/2004 |
| 6659333 | Metal foil connection, honeycomb body, metal foil brazing medium particle fraction for metal foils and method for manufacturing a metal foil connection A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass ... | 12/09/2003 |
| 6598782 | Metal foil connection, honeycomb body, metal foil brazing medium particle fraction for metal foils and method for manufacturing a metal foil connection A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass ... | 07/29/2003 |
| 6543675 | Method for soldering an exhaust gas heat exchanger The invention concerns a method whereby a soldering joint is applied on one of the surfaces of a collector plate (2, 3) before inserting the ends of the tube to be assembled thereto, in the form of a flexible adhesive previously perforated to correspond t... | 04/08/2003 |
| 6193145 | Method for joining two parts of different kinds by heterogeneous butt welding, and uses thereof An end portion of each of two parts is machined and the machined end portion of the parts are arranged in facing positions to form a welding bevel extending in a longitudinal direction between the parts, whereafter a filler metal is deposited into the wel... | 02/27/2001 |
| 6131800 | Method for coating and welding stator vanes of a gas turbine A method of applying a surface coating to a stator vane (1) of a gas turbine, the stator vane (1) comprising a platform (3) with an outer surface (4) connected to the stator of the gas turbine and an airfoil (2) connected to the platform (3), the method c... | 10/17/2000 |
| 6050477 | Method of brazing directionally solidified or monocrystalline components In a method of brazing directionally solidified or monocrystalline components, the brazing deposit and the directionally solidified or monocrystalline component are moved through a heated zone. In this zone, the temperature applied by a heating system is ... | 04/18/2000 |
| 5733400 | Intravascular catheter An intravascular catheter carries a helical reinforcement member embedded within at least a portion of the tubular wall of the catheter. The helical reinforcement member comprises a helical first portion having coils of greater pitch than the pitch of hel... | 03/31/1998 |
| 5674412 | Butt splicer for copper based tapes Apparatus and method for butt-splicing hard-rolled and.backslash.or wide copper and copper alloy tapes employs a rolling electrode and varies the contact angle of the tape ends during soldering.... | 10/07/1997 |
| 5178317 | Welding method for pneumatic outlet bottom cover assembly A method of creating a weld joint between two metal members (B1, B2). The members have coincidentally configured abutting edges (E1, E2), first surface (1A, 1B) which are adjacent to and on one side of the edges, and second surfaces (2A, 2B) which are adj... | 01/12/1993 |
| 5174014 | Method of manufacturing pressure transducers The invention improves upon the diaphragm/beam-type transducers and method of manufacturing same described in U.S. Pat. No. 4,368,575. The new transducers and method of manufacture utilize strips or slivers of silicon or germanium which are larger than th... | 12/29/1992 |
| 5090612 | Method of fabricating a pressure vessel for a metal oxide-hydrogen battery A method of fabricating a metal pressure vessel for a metal oxide-hydrogen battery. A straight length of metal having a generally T-shape cross section is formed into circular configuration and the abutting ends of the strip are welded together to form a ... | 02/25/1992 |
| 4928870 | Process for joining ceramic parts with a reactive conducting material A thin metal foil or an array of fine wires or a graphite web, mat or the ke, having electrical conductivity was interposed between clean polished surfaces of ceramic parts which are to be joined, with application of pressure. A high current electrical di... | 05/29/1990 |
| 4652019 | Partially consumable spacer chill ring A partially consumable spacer chill ring for welding a pair of adjacent pipe ends together, includes a non-consumable, substantially annular, base metal ring having an outer surface with an outside diameter permitting a snug fit interiorly of the pipe end... | 03/24/1987 |
| 4611830 | Partially consumable spacer chill rings and their use in welding pipe joints A partially consumable spacer chill or welding ring includes a generally cylindrical non-consumable base metal ring having an outside diameter of such a size as to snugly fit the inside diameter of the pipe end to be welded. A circular consumable filler m... | 09/16/1986 |
| 4593938 | Welding ring A welding ring is made as a flat ring body, of internal diameter equal to e internal diameter of the parts to be assembled and of outer diameter in excess of the external diameter of the parts to be assembled by the mount of a peripheral edge on each face... | 06/10/1986 |
| 4360144 | Printed circuit board soldering The present invention relates to a method of wave soldering an assembly composed of a plurality of electrical conductors disposed on a surface of a sheet of insulating material. In accordance with this method, the surface of the sheet and the conductors a... | 11/23/1982 |
| 4117589 | Method of manufacturing a hermetically sealed electronic component A method of manufacturing a passive hermetically sealed electronic component having a coupling element of soft alloy material between the component element and the leads for providing strain relief. The component element is composed of a passive element h... | 10/03/1978 |
| 4110592 | Method of splicing tape by soldering Metallic tape is butt spliced, i.e. without overlapping the tape, by measuring a fine strip of silver solder into a gap between the cut edges of the lengths of tape being spliced in such a manner that the strip of solder extends over one of the lengths an... | 08/29/1978 |
