Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 8021093 | Locking threaded fastener The specification discloses a locking threaded fastener including a body, a coil spring, and a compression ring. The body is hex-shaped and defines a partially threaded bore, an external circumferential groove, and a passage extending radially between the bore and t... | 09/20/2011 |
| 7227434 | Tuning screw assembly The present invention relates to a tuning screw assembly comprising a sleeve (100) with internal threads for engaging a tuning screw (200) having external threads. The sleeve comprises a first threaded portion (32) which is axially displaced in ... | 06/05/2007 |
| 6015251 | Secure threaded fastener A secure threaded fastener, prevented from unexpectedly coming loose, is described. The fastener or a nut or bolt has a coil spring capable of stopping the fastener when the fastener may be unexpectedly rotated in a loosening direction due to an outside f... | 01/18/2000 |
| 5449259 | Thread locking device A thread locking device for securing a male threaded member to a female threaded member at a desired interengaged position. A nut, threaded internally, and a spiral spring in combination form the thread locking device. The spring is mounted in the nut wit... | 09/12/1995 |
| 4832550 | Screw and nut device equipped with a rotation brake In a device for bringing about rotational braking in a screw and nut device incorporating a nut, which is rotatable and displaceable relative to a threaded bar, and a helical spring enclosing the bar, which spring at braking is clamped against the bar, fo... | 05/23/1989 |
| 4345863 | Nut control device A control device for preventing a nut from loosening, comprises a first member having an external thread portion, a second member having an internal thread portion screwed with the external thread portion and an opening, a locking coil which is wound arou... | 08/24/1982 |
| 4334438 | Clearance adjusting mechanism A clearance adjusting mechanism comprises a first member having an external thread, a second member having an internal thread screwed with said external thread of said first member, and a locking coil for locking the relative movement between said first a... | 06/15/1982 |
