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 |
| 7299589 | Telescoping boom actuation mechanism formed of concentrically nested tubular boom sections mutually engaged by roller assemblies riding on helical tracks A telescoping boom mechanism for deploying an expandable structure, such a hoop-supported antenna, comprises a plurality of concentrically nestable tubular boom sections, that are mutually engageable with one another by way of roller assemblies and helical tracks fo... | 11/27/2007 |
| 5572836 | Rotational flagpole Disclosed is a rotational flagpole pivotally mounted to a rigidly affixed base with a tongue and slot combination that enables the flagpoles to rotate around the pivot. The flagpole can also be locked in place to prevent rotation. The rotational flagpole ... | 11/12/1996 |
| 5315795 | Deployable/retractable telescoping mast assembly and method A deployable and retractable, telescoping style mast assembly and method employs a plurality of tubular sections of differing diameters. The tubular sections are nested one-in-another and are slidable with respect to each other, in a telescoping manner, t... | 05/31/1994 |
| 5024551 | Resilient slalom gate A pair of parallel slalom posts connected by a flag, which flag is connected by an elastic strip with one of the posts, and the other post is provided with a tilting joint. Thus, if a skier touches the post with the tilting joint, the post can bend withou... | 06/18/1991 |
| 4683677 | Power beam for rotating structural member A power beam converts a linear force into a torque. The beam is slideably positioned transverse to a structural member to be rotated and adjacent a hinged connection of the structural member to a frame. The beam is driven in a linear direction by a motive... | 08/04/1987 |
| 4636109 | Hinged slalom gate A slalom gate which has a lower support member adapted to be inserted into the snow. There is a retractable anchoring member mounted in the support member, in a manner that downward deflection of the post about a lower pivoting connecting portion pulls th... | 01/13/1987 |
| 4539786 | Biaxial scissors fold, post tensioned structure A structure capable of being expanded and retracted. The structure includes a pair of cells each including a plurality of leg elements which are pivotally joined at one end to form an apex point and which are pivotally joined at their opposite ends from t... | 09/10/1985 |
| 4468904 | Multi-stage extendable tower A multi-stage extendable tower for controlled elevated support and positioning of workmen and equipment having a plurality of telescoping frame sections that may be raised from a collapsed nested position to a partially or fully extended position. Functio... | 09/04/1984 |
