...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.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8017059 | Composite fabrication apparatus and method A composite fabrication apparatus which may include a first tooling die and a second tooling die movable with respect to each other; a thermal control system having induction coils disposed in thermal contact with the first tooling die and the second tooling die; a ... | 09/13/2011 |
| 7678323 | Method of forming a groove The present method of forming a groove in an inner surface of a member for covering an airbag includes the steps of heating a blade by use of an induction-heating device and pushing the blade against the inner surface of the member. The induction-heating device is p... | 03/16/2010 |
| 7531122 | Polymer welding using ferromagnetic particles An apparatus and method for bonding polymeric materials is provided. The apparatus and method both utilize ferromagnetic materials in association with the polymeric materials to be bonded together. The polymeric materials, and the ferromagnetic material, are placed ... | 05/12/2009 |
| 7378048 | Method for forming catheter curves A method and apparatus for forming catheters and catheter curves using ferromagnetic materials exposed to an alternating magnetic field. Heat is generated in the exposed ferromagnetic material. The temperature of the ferromagnetic material is allowed to reach a desi... | 05/27/2008 |
| 7323209 | Apparatus and method for coating stents An apparatus and method is provided for forming coatings on stents. The apparatus includes a temperature adjusting element that can increase or decrease the temperature of the stent. The apparatus can support a stent during the application of a coating composition t... | 01/29/2008 |
| 7195047 | Tire manufacturing module and method of manufacturing tires A module for manufacturing a cured tire from a plurality of tire components is disclosed. The module has a plurality of component appliers located at spaced locations along a predetermined path, and a mobile tire building trolley for movement along the predetermined... | 03/27/2007 |
| 7197481 | Flexible production and material resource planning system using sales information directly acquired from POS terminals This invention relates to a production system for retail goods which is intended for timely collection of accurate sales information from retail outlets and flexible production of goods in accordance with the same information, and includes sales information collecti... | 03/27/2007 |
| 7186361 | Method and apparatus for continuous molding of fiber reinforced plastic member with curvature In a continuous molding apparatus equipped with a long core 10 having a curvature disposed on a plane, a release film supplied from a lower release film feeder 20 is sent onto the core 10, and prepreg sheets supplied from a prepreg sheet feeder ... | 03/06/2007 |
| 7168935 | Solid freeform fabrication apparatus and methods An apparatus for formation of a three dimensional object comprising a sealed container; an electron beam subsystem capable of directing energy within said container; a positioning subsystem contained within said container; a wire feed subsystem contained within said... | 01/30/2007 |
| 7070406 | Apparatus for embossing a flexible substrate with a pattern carried by an optically transparent compliant media An apparatus for embossing a flexible substrate with an optically transparent compliant media is disclosed. The complaint media includes an optically transparent imprint stamp with an imprint pattern therein. The flexible substrate is coated with a photopolymer mate... | 07/04/2006 |
| 7061013 | Phase change storage cells for memory devices, memory devices having phase change storage cells and methods of forming the same Storage cells for a phase change memory device and phase change memory devices are provided that include a first phase change material pattern and a first high-resist phase change material pattern on the first phase change material pattern. The first high-resist pha... | 06/13/2006 |
| 7005023 | Method of manufacturing tires A method of manufacturing tires includes the steps of making structural components for tires, assembling the structural components of each tire following a pre-established sequence at respective work stations disposed along a manufacturing line, transferring the tir... | 02/28/2006 |
| 6936211 | Tampon applicator having outwardly flared rim Methods for making a tubular device that has a rim disposed at one end thereof. In one method, a sleeve having an expandable profiling surface is inserted into an end of the tubular member, and the profiling surface is expanded to form a shoulder projecting outwardl... | 08/30/2005 |
| 6776949 | Polymer welding using ferromagnetic particles An apparatus and method for bonding polymeric materials is provided. The apparatus and method both utilize ferromagnetic materials in association with the polymeric materials to be bonded together. The polymeric materials, and the ferromagnetic material, are placed ... | 08/17/2004 |
| 6524514 | Method and device for producing fibrous materials from thermoplastic materials The invention relates to a method for producing fibrous materials from thermoplastic material, wherein thermoplastic material is molten and fed into a rotating reactor to form a molten film and the fibers are formed on and stretched out along an open edge... | 02/25/2003 |
| 6518320 | Polyolefin products and process additives therefor having reduced transfer to substrates A process additive for polyolefin films and foams produces products having reduced aging time and reduced greasiness and reduced grease-like transfer as compared to glycerol monostearate (GMS). Carbon dioxide based blowing agents are suitable. The process... | 02/11/2003 |
| 6395113 | Process for producing a non-combustible moulded article, especially a building panel A process is proposed for producing non-combustible moulded articles from blown vermiculite, the blown vermiculite granules being mixed with an inorganic binder and then pressed. The blown vermiculite granules are mixed with a solution of an inorganic bin... | 05/28/2002 |
| 6309582 | Method for making insignias with raised designs including two pressing steps A method and apparatus for making insignias with a raised design is capable of providing more aesthetic appearance to the insignias thus made. A base material consisting of a base sheet and a surface sheet overlaying the base sheet is prepared for making ... | 10/30/2001 |
| 6310333 | Induction heating method for manifold in hot runner mold In an induction heating method for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mol... | 10/30/2001 |
| 6278096 | Fabrication and repair of electrically insulated flowliness by induction heating A method of repairing the insulation of a subsea insulated pipeline which includes the use of an induction heating coil placed around the insulated pipe in the vicinity of an insulation defect. An electric current is provided to the induction heating coil... | 08/21/2001 |
| 6120714 | Moulding process and article produced by the process A process for forming a molded article having a multilayer structure which comprises successively injecting melts of at least two materials into the cavity portion of a mold, solidifying a part thereof in the cavity portion to form the multilayer structur... | 09/19/2000 |
| 6058590 | Apparatus and methods for embedding a biocompatible material in a polymer bone implant Apparatus and methods for partially embedding a biocompatible material, such as a titanium coil, in the surface of a polymer bone implant to provide a porous coating for bone cells to grow through thereby promoting long term stabilization of the implant. ... | 05/09/2000 |
| 5942259 | Method and apparatus of controlling temperature of injection preform for stretch blow molding A preform heating method for heating a preform for a stretch blow molding is executed by an apparatus which comprises an outer heating die having a cavity for the preform, a thermal-insulating pot surrounding the outer heating die and a high-frequency hea... | 08/24/1999 |
| 5935476 | Device for heating a press tool using magnetic induction heating; press having such a device, and method of manufacture A device for heating a press tool (4), which is mounted in a press (3) for manufacturing products wholly or partially of plastic or composite, consists of a core (1) of electric sheet steel, a coil arrangement (9, 10, 11) placed around the core (1), and a... | 08/10/1999 |
| 5912081 | Method and paint firm for painting an object during a creative shaping The invention relates to a method for painting an object during a creative shaping process, for example an injection-molding, extrusion-molding, or back-foaming method with a paint film, as well as a paint film for working the method. In the method, a pai... | 06/15/1999 |
| 5881443 | Apparatus and methods for embedding a biocompatible material in a polymer bone implant Apparatus and methods for partially embedding a biocompatible material, such as a titanium coil, in the surface of a polymer bone implant to provide a porous coating for bone cells to grow through thereby promoting long term stabilization of the implant. ... | 03/16/1999 |
| 5851474 | Injection molding with periodic forces to the material in the mold An injection moulding process for moulding a material in a mould having a mould cavity and at least one channel communicating with the mould cavity, each channel entering the mould at a respective mould inlet includes the steps of heating inner surface ar... | 12/22/1998 |
| 5837183 | Golf ball molding method and apparatus A golf ball molding apparatus includes a mold comprising a pair of upper and lower mold halves (1 and 2) adapted to be mated to define a spherical cavity therebetween, each mold half being formed of a non-magnetic material and having a thin film layer (4)... | 11/17/1998 |
| 5762972 | Apparatus for heating a mold for an injection molding system An apparatus performs induction heating or dielectric heating of a mold for an injection molding system up to a desired temperature within a short time by using high frequencies or microwaves. The electric current of high frequency generated from a high f... | 06/09/1998 |
| 5622669 | Process and apparatus for the vulcanizing of tires A tire vulcanization apparatus in which an encaser 3 makes it possible to introduce a tire into a mold 1 and, by means of inductors 42, transfers to the mold heat energy necessary for vulcanization and in which a chamber 5 receives several molds 1 and mak... | 04/22/1997 |
| 5591369 | Method and apparatus for consolidating organic matrix composites using induction heating A method and apparatus for forming and consolidating organic matrix composites. An organic matrix composite panel comprising laid-up prepregs is placed between sheets of a susceptor material that is susceptible to inductive heating to form a workpiece. Th... | 01/07/1997 |
| 5530227 | Method and apparatus for consolidating organic matrix composites using induction heating A method and apparatus for forming and consolidating organic matrix composites. An organic matrix composite panel comprising laid-up prepregs is placed between sheets of a susceptor material that is susceptible to inductive heating to form a workpiece. Th... | 06/25/1996 |
| 5412185 | Induction heating of polymer matrix composites in an autoclave Induction heating is utilized to heat polymer matrix composites containing electrically conductive fibers. This is accomplished with an apparatus having a mandrel for supporting a composite workpiece and a helical induction coil disposed around the mandre... | 05/02/1995 |
| 5387386 | Extrusion method and apparatus The invention relates to a method for processing extrudable material, especially for the manufacture of a multilayer extrusion product in an extrusion device, wherein the extrudable material is brought in solid form, advantageously as powder or in granula... | 02/07/1995 |
| 5281784 | Mold assembly for microwave oven A mold assembly for use by children to produce in a microwave oven plastic play pieces. The assembly includes a mold, non-reactive to microwave energy and is provided with shaped cavities for receiving a flowable, plastic molding composition non-reactive ... | 01/25/1994 |
| 5137678 | Method for calendering a paper or cardboard web coated at both sides To achieve desired treatment results at both sides of a material web to be calendered, the material web is initially guided through a first nip formed between yieldable elastic surfaces confronting the throughpassing material web. In the first nip there i... | 08/11/1992 |
| 5096631 | Method and device for providing a collar about an anode nipple A method and a device for providing a collar about an anode nipple (4). Collar composition is supplied to a compression mould (6) comprising two sections and is compressed by said compression mould, if desired, with supplied heat and/or vibration, whereup... | 03/17/1992 |
| 5047605 | Induction welding apparatus and method An apparatus and method for welding or thermally bonding parts of thermoplastic material by subjecting a die to high frequency electromagnetic radiation to effect heating thereof and heating of thermoplastic parts in contact with the heated die. The die i... | 09/10/1991 |
| 4880579 | Method for closing openings of through-holes in a pipe wall A method for closing the opening of each of the through-holes in the pipe-wall of a resin pipe and which extend parallel to the axis of the pipe, the method comprises pressing one end portion of the pipe in the direction parallel to the axis in a mold for... | 11/14/1989 |
| 4822267 | Apparatus for producing superfine powder in spherical form Apparatus for producing superfine powder in spherical form with a diameter of about 5 to 30 microns in a laval nozzle system. The material to be powdered is melted in a crucible, and is then superheated after it emerges from the crucible.... | 04/18/1989 |