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 |
| 7270382 | Wheel with increased interior lip depth Disclosed are various embodiments of one-piece, and multi-piece wheels configured to provide increased interior lip depth. In one embodiment, an outer periphery of a curved center portion of a wheel is attached to a wheel barrel in an inboard region, and a portion o... | 09/18/2007 |
| 7137675 | Road wheel for tracked vehicles A hollow-shell road wheel for tracked vehicles includes a generally triangular, outer circumferential cavity formed by an outer rim and two wall members that extend radially inward at angles to a generally planar flange at approximately the mid-radius point of the h... | 11/21/2006 |
| 4471990 | Railroad car wheel A railroad car wheel is designed to have an amount of displacement of 40 mm or larger, this amount being the amount of displacement of a rim portion relative to a boss portion of the wheel which is the distance between two lines perpendicular to the axis ... | 09/18/1984 |
| 4307910 | Railway wheels and light weight axles A lightweight wheel and axle assembly that reduces unsprung weight thereby improving the ride. The assembly also diminishes hunting and reduces tendencies towards unstable dynamic conditions. The wheel and axle assembly is easily adaptable to conventional... | 12/29/1981 |
| 4145079 | Railroad car wheel A railroad car wheel having an annular hub for connection to an axle and defining an inner radial surface adapted for disposition in facing relating to the inner surface of a wheel on the opposite end of the axle and an outboard radial surface facing outw... | 03/20/1979 |
