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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 |
| 7314053 | Load sensing system A load sensing system for maximizing the cleaning efficiency of particulate raw materials such as sand, gravel, rock, ores, etc., in a log washer by sensing the weight of the aggregate in the log washer tank and adjusting the angle of inclination of the tank for cle... | 01/01/2008 |
| 7284622 | Tool holder for hammer A tool holder for a hammer comprises a tool holder body having a forward end for non-rotabably receiving a shank of a tool. The tool holder body defines an axially extending slot. A locking body through the slot for releasably engaging an axially extending closed gr... | 10/23/2007 |
| 7207393 | Stepped drive shaft for a power tool A shaft comprises an input portion and a tang. The tang has a first section, a second section, and a radial bore. The second section is disposed between the first section and the input portion along an axis. A radial cross section of the first section is less than a... | 04/24/2007 |
| 7121357 | Method of inserting a grounding rod A method of inserting a grounding rod includes providing an elongated grounding rod that has an upper end and a lower end and also providing a hammer drill. An elongated tubular member has an open first end and an open second end. The tubular member includes a first... | 10/17/2006 |
| 6857482 | Percussive implement of the rock breaker type The invention concerns an apparatus comprising a body (2) wherein a piston (6) is mounted sliding alternately driven by an incompressible fluid under pressure, said body containing part of a tool (4) which is guided in translation in a wear slee... | 02/22/2005 |
| 6745850 | Tool holder for hammer A tool holder for a hammer comprises a tool holder body having a forward end for non-rotatably receiving a shank of a tool. The tool holder body defines an axially extending slot. A locking body extends through the slot for releasably engaging an axially extending c... | 06/08/2004 |
| 6073704 | Machine support including means for angular control of a supported device Supporting clamps for a tool such as, for example, a pile driver machine are used to tilt a machine support relative to a horizontal plane. The clamps include a pair of jaw elements one of which is received on a pivot and the other of which has a pair of ... | 06/13/2000 |
| 5722471 | Tool for rock breaking and log splitting A tool 10 for rock breaking, log splitting and similar operations includes a plate 12 having a plurality of identical apertures 14 formed therethrough. A frame 16 comprised of a skirt 18 formed from lengths of angle iron and a plurality of legs also forme... | 03/03/1998 |
| 5256006 | Driving cap for stakes and posts A driving cap for forcibly driving a wooden stake or fence post into the ground. The driving cap includes a horizontal hitting surface capable of withstanding the forces exerted manually by a hitting tool, such as a hammer, and an integrally attached slee... | 10/26/1993 |
| 5107935 | Stake setting accessory for jack hammer An accessory for a jack hammer that includes clamping means for gripping the upper end of the stake so that the stake can be controllably driven into the ground by the user. The accessory includes a stake receiver that has a channel into which the end por... | 04/28/1992 |
| 5097912 | Staking system for concrete forms An upright guide bar is provided having upper and lower ends and the lower end include structure for releasable engagement with the upper end portion of an upstanding stake to be driver downwardly. A downwardly opening drive housing having upper and lower... | 03/24/1992 |
| 4971479 | Post driver A post driver for inserting or removing marker posts into the ground. The driver comprises two components, the hammer and the bracket, which cooperate in a safe and efficient means for installing and removing marker posts. The hammer locks around the post... | 11/20/1990 |
| 4669552 | Power driving apparatus Power driving apparatus includes a body portion, a power supplying portion, an actuating portion, a drive portion, a biasing portion and a surface contacting portion. The body portion includes a vertically oriented elongated tubular section, the tubular s... | 06/02/1987 |
| 4565251 | Post driving device A driving device (10) for removable attachment to a post (100) to allow driving of the post into the ground is described. The device is characterized by a body portion (12) which loosely fits onto the end of the post and a cap portion (11) closing one end... | 01/21/1986 |
| 4534421 | Tool assembly A tool assembly in which the tool holder 6 forms a relatively small volume of metal thereby facilitating brazing of the tool bits (21, 23) and inexpensive replacement.... | 08/13/1985 |
| 4494612 | Manually operable post driver A manually operable post driver for posts (10) including a slide hammer (11) and removable anvil (12) mounted on the post for accomplishing the driving is described. The anvil (12) is rigidly secured by removable nuts (35, 36) on studs (33, 34) to the pos... | 01/22/1985 |
| 4365675 | Pile driving assembly A pile driver assembly comprising a lead, a hammer supported for longitudinal movement along the lead, a helmet at the lower end of the lead configured to receive the end of a noncircular pile, a pile guide supported for longitudinal movement along the le... | 12/28/1982 |
| 4248550 | Pile extraction apparatus Pile extraction apparatus having a clamping device for clamping engagement with a pile. The device is suspended from a section of casing pipe by way of a universal joint. In this way the extraction apparatus may be raised and lowered by a commercially ava... | 02/03/1981 |
| 4190118 | Drive cap A drive cap is disclosed for use in driving structural posts of the type which may be employed in roadside sign post structures wherein the posts have lateral generally coplanar flanges interconnected by an offset web, and wherein the posts may have diffe... | 02/26/1980 |
