Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 6375464 | Micromechanical seal for dental implant systems A micromechanical seal between a first body and a second body is co-axially threadably securable about a portion of the first body. The seal is created by the combination of an annular planar radial surface within the first body; a surface of rotation of ... | 04/23/2002 |
| 5447434 | Micromechanical seal A micromechanical seal between a first body and a second body, which is axially threadably securable to the first body, is formed by the combination of a first annular concave radial surface upon the first body, the first surface defining a radius of curv... | 09/05/1995 |
| 4030975 | Fuel assembly for a nuclear reactor A nuclear reactor fuel assembly having an easily disassembled threaded connection between the end fitting and the control rod guide tubes. More specifically, the threaded connection is formed between the upper and/or lower alignment posts and the guide tu... | 06/21/1977 |
| 4010788 | Bolt seal A bolt seal for securing hasps on trailer truck doors and/or rail car doors which utilizes a round or oval head bolt which extends through the hasps and upon which a nut is threaded. The nut is threaded onto the bolt until it is tight and then a hollow tu... | 03/08/1977 |
| 3992259 | Fuel assembly for a nuclear reactor A nuclear reactor fuel assembly having an easily dissassembled threaded connection between the end fitting and the control rod guide tubes. More specifically, the threaded connection is formed between the upper and/or lower alignment posts and the guide t... | 11/16/1976 |
| 3964530 | Locking cup washer A nut locking device in the form of a cup washer with a slotted base portion is secured over the end tang of an external threaded fastener so that the outer lip portion of the cup washer engages over and locks against the outer peripheral edges of a nut t... | 06/22/1976 |
