Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 6146073 | Threaded insert made of wire The invention relates to a wire-type screw thread insert for insertion into a tapped hole of a workpiece. A cylindrical body comprising a plurality of helically wound coils is provided with at least one insertion zone which is bent radially inwards from t... | 11/14/2000 |
| 5855463 | Bolt and nut thread friction locking device with opposite hand threads with a captured spring or spring lock washer A friction thread locking device assembly consisting of several components, which are so constructed and assemble to resist the rotational effects of vibration forces. The resistance is achieved by the use and placement of opposing threads (right and left... | 01/05/1999 |
| 5820316 | Guide element for a cutting tool Guide element for a cutting tool having a location hole (20) in the tool shank (4) having an internal thread (16, 10), which has a threaded bolt (14) having an external thread that can be screwed into the internal thread (16, 10) and is spring mounted in ... | 10/13/1998 |
| 4165194 | Frictional couplings A frictional coupling for a male member inserted in the bore of a female member, to couple together the two members when at a pre-determined axial position. The opposed surfaces of the male and female members define a clearance the radial dimension of whi... | 08/21/1979 |
| 4106540 | Anti-vibration thread insert A locking thread insert is wound from wire which is drawn to a generally diamond-shaped cross-section. The wound wire is coiled to a predetermined diameter preferably slightly larger than the diameter of a threaded hole in a female member in which the ins... | 08/15/1978 |
| 4040462 | Fasteners having threads formed of essentially helical coil structures A threaded nut having a case containing a separately formed essentially helical coil structure which forms an internal thread and is fusion bonded to the case, preferably by electron beam welding. The coil structure desirably has a locking portion which i... | 08/09/1977 |
| 4040326 | Fastener assembly An improved fastener assembly includes helical internal and external thread convolutions. A generally helical insert having a plurality of turns is disposed between the internal and external thread convolutions. This insert is resiliently twisted or flexe... | 08/09/1977 |
| 3945070 | Wire thread cast insert A threaded opening is formed in a plastic or metallic body formed by molding or casting by providing a wire in a helical configuration supported on a core member and then molding or casting the material about the helical configuration. This helical config... | 03/23/1976 |
| 3938209 | Formation of fasteners having threads formed of coil structures The method of manufacturing a threaded nut having a case containing a separately formed essentially helical coil structure which forms an internal thread and is fusion bonded to the case, preferably by electron beam welding. The coil structure desirably h... | 02/17/1976 |
