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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 |
| 7308944 | Expander tool for use in a wellbore The present invention generally relates to apparatus and methods for expanding a tubular. In one embodiment, an expander tool includes a body having at least one recess therein. An expansion assembly disposable in the at least one recess includes a piston that outwa... | 12/18/2007 |
| 7231796 | Structure of roll-forming machine A roll-forming machine formed of a machine base, a plurality of sheet-transfer roll sets, and a plurality of forming roll sets and adapted for the formation of a C-shaped component or a Z-shaped component from a sheet material is disclosed to have an adjustment stru... | 06/19/2007 |
| 7222509 | Groove processing apparatus and groove processing method The holder member 4 is rotatably supported at the tip portion 2a of the sliding member 2 placed on the guide face 1a of the guide member 1 arranged fixedly inside the cylinder C. The holder member 4 is inclined... | 05/29/2007 |
| 7204005 | Manufacturing method of endless metal belt and manufacturing apparatus of endless metal belt A manufacturing method of an endless metal belt having metal rings built up and differing in circumference, includes the following steps of: a first circumference correction step of expanding each of the metal rings; and a second circumference correction step of exp... | 04/17/2007 |
| 7188502 | Method and device for changing the rolls of a tube welding stand The invention relates to a method for changing sets of top rolls, lateral rolls, and a bottom roll, and mounted in chocks of a welding stand of a continuously operating longitudinal tube welding machine. The inventive method enables the rolls to be changed faster, u... | 03/13/2007 |
| 7134303 | Device for socket-deforming a tube end and for adjusting its length A device (1) for socket-deforming an end of a tube, for example a tube of a heat exchanger, and for cutting that tube to a desired length, the cutting taking place at the end to be deformed. The The device (1) comprises a deformation and cutting member... | 11/14/2006 |
| 7128146 | Compliant swage A compliant swage has the ability to change shape to allow clearance of an obstruction while permitting expansion to go on in other areas removed from the obstruction. A series of segments move with respect to each other longitudinally to change overall size. The se... | 10/31/2006 |
| 7114358 | Tube expanding apparatus A method and apparatus for expanding a free end of a tube by use of a fluted spinning tool. The fluted spinning tool of the present invention, when rotated at a predetermined speed into the free end of the tube, produces a combination of force, rotation, and heat wh... | 10/03/2006 |
| 6968719 | Apparatus and methods for forming internally and externally textured tubing A machine may produce a tube having textured internal and external surfaces in a single operation. Inner and outer knurling tools may form the textured surfaces. The texturing of the internal and external surfaces may be helical patterns of ribs and grooves. The hei... | 11/29/2005 |
| 6530254 | Rolling machine A rolling machine for processing a metal container which has a longitudinal seam and is made from a flat metal plate to form a cylindrical body having adjacent or overlapping butt edges securely joined to one another by folding or welding, whereupon a dis... | 03/11/2003 |
| 6502443 | Component rolling tool of dynamic pressure groove and component rolling method A component rolling tool for applying a dynamic pressure groove comprising component rolling balls, cylindrical sleeve having an outer surface, an axis, a radius, a center hole, and guide holes, and being inserted into the bearing hole, and being relative... | 01/07/2003 |
| 6216511 | Apparatus and method for smoothing a welded seam of steel pipe A method and apparatus for smoothing a thick walled portion of a steel pipe produced by pressure-welding two opposite longitudinal edges of an open pipe with a squeeze roll after being subjected to induction heating. Outer and inner reduction rollers pres... | 04/17/2001 |
| 5520038 | Device for manufacturing a groove bearing A moveable cage which has a pattern of holes surrounding and concentric with a central axis of the cage, and a short hard pin located within the cage, and movable back and forth between the two ends of the cage. A single drive device attached to the cage ... | 05/28/1996 |
| 5372028 | Device for forming a construction on the open end zone of a metal can A device for forming a constriction at an open end portion of a metal can having a cylindrical body includes: (1) a support member for supporting the bottom of a can and for pushing displacement thereof in an axial direction; (2) an annular anvil placed coaxia... | 12/13/1994 |
| 4866966 | Method and apparatus for producing bypass grooves The present invention is directed to a method and apparatus for simultaneously producing multiple linear grooves on the internal surface of cylindrical tubes. The apparatus comprises an outer cage assembly with a mandrel assembly axially and slideably dis... | 09/19/1989 |
| 4643011 | Method of manufacturing a cylinder member of a cylinder piston unit In gas springs, shock absorbers and the like, the cylinder member may be provided with an interconnection groove on its internal face. This groove is to interconnect two working chambers on both sides of a piston member movably received within the cylinde... | 02/17/1987 |
| 4462235 | Method for threading closures A method for threading a closure having cylindrical walls which includes securing the closure in a stationary nest, inserting a threading tool having indentions on the outside thereof into the interior of the closure, moving the closure into a ring having... | 07/31/1984 |
| 4420959 | Apparatus for threading closures An apparatus for threading a closure having cylindrical walls which includes securing the closure in a stationary nest, inserting a threading tool having indentions on the outside thereof into the interior of the closure, moving the closure into a ring ha... | 12/20/1983 |
| 4398407 | Sizing of powder metal parts Powder metal first pressed into a green briquette having an inner cavity is then sintered to form a rigid part. The inner cavity of the part is next sized in a lap-like operation by a spherical-shaped tool. The tool is rotated in an orbital pattern compri... | 08/16/1983 |
| 4337634 | Externally held cylindrical expander for tubular wares This invention relates to an improvement in an externally held cylindrical expander for tubular ware with a central support for radially adjustable, spreading rest means and sector-shaped longitudinal elements borne by said rest means, in particular for t... | 07/06/1982 |
| 4142392 | Internally groove forming apparatus for heat exchanging pipes An internal groove forming apparatus for heat exchanging pipes, having a cylindrical holder adapted to be loosely fitted in a heat exchanging pipe in concentric relationship, and a plurality of groove forming rolling tools arranged on the holder in a plur... | 03/06/1979 |
