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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 |
| 5366330 | Fastener head with internal recess having a radial slot configuration and installation tool therefor A fastener head having a pair of recesses formed therein, a ledge in each recess being located a short distance axially below the head surface and extending a predetermined angular length from the axial portion of the ledge. The dimension of the ledge is ... | 11/22/1994 |
| 5340256 | Security nuts A security nut, which can be tightened on to a bolt but not slackened, has a body which is dome shaped and through which a threaded bore passes. The external dome-shaped surface of the body is provided with grooves which have diverging walls which can be ... | 08/23/1994 |
| 5324149 | Lightweight lug nut A lightweight lug nut including a grooved body for receiving a wrench, a nose on the body for bearing against a rim, a threaded portion within the body, an enlarged bore between the threaded portion and the end of the body remote from the nose, a chamfer ... | 06/28/1994 |
| 5207132 | Elliptical lobed drive system There is disclosed a torque transmitting or coupling arrangement for a fastener drive system or the like, wherein the respective externally configured and internally configured components are provided with a series of mating, elliptically curved flutes an... | 05/04/1993 |
| 5144837 | Acceleration detector An acceleration detector including an acceleration transducer assembly including a piezoelectric element, an output terminal and an inertial weight. The transducer assembly is secured on a threaded bushing by a substantially ring-shaped, thread-engaging s... | 09/08/1992 |
| 5137407 | Head drive for threaded fastener A threaded fastener having a recess or projection in a head for engagement with a jointing equipment is disclosed. The recess or projection is composed of a center portion and radial portions extending radially outward of circumference of the center porti... | 08/11/1992 |
| 5108238 | Torque limiting bolt for power wrench tightening A torque limiting bolt for tightening by a power wrench comprises a threaded shank, a tightening head at one end of the shank, a retaining head at the other end of the shank and a nut in threaded engagement with the threaded shank, the tightening head bei... | 04/28/1992 |
| 5033501 | Fire hydrant cap and actuating tool therefor A fire hydrant cap and actuating tool for use therewith provide enhanced security for fire hydrants and increased safety when using the tool. The cap is forged of 8620 carbon steel; is provided with an internal steel lock washer of cadmium plate steel, an... | 07/23/1991 |
| 5020953 | Lock nut A lock nut with a nut and an annular flat plate made of resilient material, the annular flat plate having a circumferential periphery and an arcuate protrusion, wherein the circumferential periphery is secured on one surface of the nut, and the arcuate pr... | 06/04/1991 |
| 5004361 | Fastener for use at cryogenic temperatures, and tool therefor Fastener comprises a flat head nut having a specially designed shape and includes a complimentary bolt, for use in a cryogenic environment. Opposed heads of the nut and bolt each have an underside connecting the heads to neck and body portions, respective... | 04/02/1991 |
| 4846613 | Nut with corner passages The nut has two major faces and six lateral sides. A passage connecting two successive sides is formed in at least one, typically three corners. The passage is formed by a blind groove formed in one of the major faces of the nut, opening into a first one ... | 07/11/1989 |
| 4616535 | Tamper-proof threaded fastenings The fastening device has a head portion with a uniform cross section, the uniform cross section having a plurality of non-uniform indentations. A matching socket wrench is provided having an internal cross section matching the exterior cross section of th... | 10/14/1986 |
| 4285265 | Tacking rivet A tacking rivet has a shaft and a head with a longitudinal bore through the haft and through the head. The head forms a rim extending radially outwardly and the rim or head has a divider which divides the head and/or rim into at least two portions. The div... | 08/25/1981 |
| 4171012 | Locking thread construction A locking thread design which may be incorporated in various types of male and female threaded elements, for example, a bolt and nut, or a bolt and casting, forging or similar member having a threaded bore therein. The thread design may be of the Standard... | 10/16/1979 |
| 4025140 | Locking device for the prongs of an electrical plug In one embodiment a protective housing adapted to be locked upon and cover a prong of an electrical plug is disclosed. The housing has a chamber to receive a prong of the plug and has a collared recess and threaded bore on one side communicating with the ... | 05/24/1977 |
| 4006660 | Fastener element A fastener element has at its male portion a plurality of grooves whose cross sections each form a fractional circle and a plurality of lobes whose cross sections each form a segmental outline of a larger circle, the inner wall of each said groove being c... | 02/08/1977 |
| 3969974 | Configuration for nuts and bolt heads The wrenching portion of a nut or a bolt head is provided with a configuration which, when viewed in plan, comprises an outer cylinder having a plurality of grooves defined in part by re-entrant concave surfaces and equiangularly spaced about its peripher... | 07/20/1976 |
