...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7140695 | Lightened rim for a bicycle wheel and method for manufacturing such a rim A rim for a bicycle has a lower bridge with infra-spoke zones of lower thickness than the thickness of the spoke attachment zones. The increase in thickness from the infra-spoke zones to the spoke attachment zones and the reduction in thickness between the spoke att... | 11/28/2006 |
| 7009363 | Optimized battery life in multiple battery applications Various apparatus and methods of supplying regulated battery power to an electrical device, such as a downhole tool, are provided. In one aspect, a method of providing power to an electrical device is provided that includes providing a plurality of batteries and pro... | 03/07/2006 |
| 6913323 | Wheel having spokes with V-shaped cross-sections A wheel for a motor vehicle has a wheel hub connected with a wheel rim by spokes. In order to create a wheel for a motor vehicle which has low weight and high stability, spokes arranged between the wheel hub and the rim are constructed such that, in first areas conn... | 07/05/2005 |
| 6877820 | Cast wheel rim A cast wheel rim including a light-metal body which at least partially encompasses at least one shaped part forming a cast-in core and having a mean specific weight smaller than that of the light metal used for the body, wherein the shaped part is comprised of a pre... | 04/12/2005 |
| 6530624 | Two-piece wheel for a motor vehicle The rim spider of a two-piece wheel for a motor vehicle is provided with hollow spokes in which a metal foam core is arranged and remains. The rim spider is connected with a rim by way of weld ring surfaces which are friction welded. The metal foam core i... | 03/11/2003 |
| 6520596 | Wheel support assembly and hub A hub for use in and as part of a wheel support assembly adapted to bolt to the end plate of an axle of a vehicle for supporting a tire is disclosed herein along with the wheel support assembly itself. The hub is configured as a plurality of bars which ar... | 02/18/2003 |
| 6471303 | Wheel for a motor vehicle and method of making same A wheel for a motor vehicle includes cavities in a spoked rim structure. These cavities are provided with a removable sand core or with a remaining core, for example, made of metal foam. A rim, or a rim and a rim flange, may be connected with the spoked r... | 10/29/2002 |
| 6325462 | Motor vehicle wheel having hollow spokes A motor vehicle wheel having hollow spokes and made of a light metal is produced in a casting process. In the hollow space, the wheel spokes have a dead core consisting of a metallic material in the form of a metal foam or of a closed shell-shaped element... | 12/04/2001 |
| 6090194 | Cubic leucite-containing dental porcelains A dental porcelain composition comprising a continuous glassy phase and a discontinuous, substantially uniform crystalline phase comprising cubic leucite. The porcelain exhibits coefficients of thermal expansion in the range of about 11 to about 17×10 | 07/18/2000 |
| 4523790 | Light weight wheel formed from sheet metal A lightweight wheel for land vehicles, particularly bicycles and motorized cycles, which provides sufficient durability for use on rough terrain. The wheel includes a central hub, a peripheral rim which retains a tire, and a plurality of extensions which ... | 06/18/1985 |
| 4443039 | Trailer wheel adaptable to automobile hubs A wheel structure adaptable for use on a trailer or an automobile hub including a spoked member having at least three spokes, each of the spokes being adapted to contact a rim on which a rubber tire may be mounted, the spoked member having a series of out... | 04/17/1984 |
| 4425004 | Banded vehicle hub Prior art truck hub has central boss with central axis, a plurality of spokes extending from the boss, and webs extending between the spokes. End faces of spokes commonly crack and by using method of repair the hub can be salvaged by removing from outer e... | 01/10/1984 |
| 4256346 | Wheels for vehicles, such as motorcycles An improved wheel construction for a motorcycle or other vehicle wherein a wheel hub is combined wih a wheel rim by a plurality of pairs of radially-extending trapezoidal-shaped spoke members, each pair including two symmetrically opposed spoke members. I... | 03/17/1981 |
| 3977728 | Wheel A wheel comprising a plurality of wheel plies, each wheel ply including concentric inner and outer hoops and a plurality of circumferentially spaced spoke loops therebetween, wherein each of the spoke loops is entrapped within the hoops. In one embodiment... | 08/31/1976 |
| 3950033 | Vehicle wheel A wheel manufactured from an elongated section of sheet steel is disclosed together with a method for its manufacture. Five rim retaining flanges are formed in the sheet steel. A rim retaining lip is formed along one edge of each of these five flanges. A ... | 04/13/1976 |