Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7121055 | Ridge cover and method of making A shingle ridge cover is formed from a rectangular sheet of shingle roofing material back folded on itself to provide a central thickened portion for the shingle ridge cover. An upper portion of lesser thickness provides a nailing margin for the shingle ridge cover,... | 10/17/2006 |
| 6511759 | Means and method for producing multi-element laminar structures The instant invention provides a means and method for producing multi-laminar elements, said elements being suitable for operation in high temperature, atmospheric or vacuum environments such as those which may be required when processing materials such a... | 01/28/2003 |
| 6386427 | One-side welding method for steel structure In the present invention, by the method using a backing material such as copper, which is not melted by a welding heat source, in an end face of a member without using a backing metal or consumable backing material at a joint welding time, overlay welding... | 05/14/2002 |
| 5871140 | Hollow shaft and method of making same The invention provides methods of manufacturing stainless steel tubing, pipe and shafts by utilizing air hardenable stainless steel. Such pipe, tubing and shafts have the important characteristics of low weight, shaft flex, torque, bend point and strength... | 02/16/1999 |
| 5503322 | Metal container for transport and storage of liquids A sheet metal container (1) used as a retainable or nonretainable container for transport and storage of liquids has a fill neck (3) which can be sealed with a cap (4) and another neck (5) in the bottom area for connecting a discharge and flushing cock, a... | 04/02/1996 |
| 5242254 | Containers An end wall 9, for attachment to a container, has a central panel 10 and surrounded by a channel portion 11 which includes a deposit of solder 19 in the form of a paste of solder and flux. The can end 9 is joined by a double seam 23 to a sidewall 12 of a ... | 09/07/1993 |
| 4738560 | Welding seam for the connection of two thin sheet metal members A connection of an outer sheet metal member with an inner sheet metal member whereby the outer sheet metal member must form an optically smooth surface. For that purpose, the outer sheet metal member is folded over the inner sheet metal member and a weldi... | 04/19/1988 |
| 4249692 | Horn for can body soldering A more versatile and improved mechanism is provided for internally maintaining can side seams uniformly aligned, for instance as they advance from a forming horn for registration with a molten solder jet or equivalent applicator. In a preferred form an el... | 02/10/1981 |
