...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7207794 | Pouch production apparatus and method A pouch production apparatus includes a pouch forming apparatus operable to form pouches from an elongate web of material and zipper tape and an extrusion apparatus responsive to operation of the pouch forming apparatus and operable to extrude zipper tape. A pneumat... | 04/24/2007 |
| 7140161 | Beverage bottling plant for filling bottles with a liquid beverage filling material, having container handling machines with carrying pockets A beverage bottling plant for filling bottles with a liquid beverage filling material, having a container handling machine such as, for example, filler, rinser, or closer for the processing of containers that comprise a neck ring, said machine comprising a rotating ... | 11/28/2006 |
| 7073554 | Integration device for compact disk An integration device for a compact disk has a reversing element and an elevator. The reversing element has a first engine, an arm and a first seat, whereby the arm is rotated reversely in turn. The elevator has a second seat, a base, a second suction disk and a sec... | 07/11/2006 |
| 7013944 | Compact disk manufacturing machine A compact disk (DVD) manufacturing machine is used to laminate first and second DVD substrates to produce a DVD, and mainly includes a glue applicator for applying a glue ring on a laminating surface of each DVD substrate; a DVD laminator for turning the first DVD s... | 03/21/2006 |
| 6906290 | Method and device for heating preform While blowing out cooling air to a preform which is biaxially stretched and blow molded into a bottle shape, heat sources are made operative by a high power and the first heating process as quick heating is performed to the preform. Subsequently, the heated preform ... | 06/14/2005 |
| 6723270 | Method for manufacturing filter member A principal object of the present invention is to provide a method for manufacturing a filter element having a resin-molded frame, which permits to easily form the resin-molded frame, even when the filter has a complicated shape. The above-mentioned object can be ac... | 04/20/2004 |
| 6620271 | Open die system A die system for use in formation of a welded flashing, comprising a body portion comprised of a conducting material, the body portion having a first end and a second end; an indent portion at the first end of said body portion adapted to accept a portion... | 09/16/2003 |
| 6616781 | Open die system A die system for use in formation of a welded flashing, comprising a body portion comprised of a conducting material, the body portion having a first end and a second end; an indent portion at the first end of said body portion adapted to accept a portion... | 09/09/2003 |
| 6524414 | Method for pressing cylindrical composite bodies A method for producing ceramic composite bodies, in particular, cylindrical ceramic bodies for sheathed-element glow plugs, in which a plurality of shaping sleeves, which accommodate piece parts premolded by cold pressing, are inserted into corresponding ... | 02/25/2003 |
| 6436330 | Process and apparatus for the production of labeled plastic bottles A process and an apparatus for the production of labeled plastic bottles, to produce labeled bottles at a high output rate and with a reliable label hold wherein the bottles are labeled in a continuous flow directly after leaving the blowing machine. The ... | 08/20/2002 |
| 6197146 | Method and apparatus for forming airfoil structures An assemblage for bonding the skin of an airfoil to the core of the airfoil includes a hybrid caul plate assembly for covering the surface of the airfoil assembly which is exposed to bonding pressure. The hybrid caul plate includes a central elastomeric c... | 03/06/2001 |
| 6143822 | Polyethylene crosslinkable composition A composition comprising: (a) polyethylene; (b) as a scorch inhibitor, 1,1-diphenylethylene, substituted or unsubstituted; (c) optionally, a cure booster; and (d) an organic peroxide.... | 11/07/2000 |
| 6127482 | Crosslinkable polyethylene composition A composition comprising: (a) polyethylene; (b) a cure booster selected from the group consisting of 3,9-divinyl-2,4,8,10-tetra-oxaspiro[5.5]undecane (DVS); a copolymer of ethylene and DVS; and an ethylene homopolymer or copolymer having DVS grafted there... | 10/03/2000 |
| 6076582 | Apparatus for making formed laminate A method and apparatus (32) for making a three-dimensionally formed laminate (20) by positioning a mask (62) having an opening (64) above a flexible film (52) for rotation therewith such that a foamable liquid mixture (71) sprayed downwardly through the m... | 06/20/2000 |
| 6024820 | Mold-changing device in an ornamental body gluing apparatus A device used for an ornamental body gluing apparatus is disclosed to reduce the work and time necessary to change molds. The device includes a cylinder mounted on a press-gluing station, the cylinder having an attaching plate to which a receiving plate i... | 02/15/2000 |
| 5985438 | Reinforcing tape for slide fastener A reinforcing tape for a slide fastener and a slide fastener having a pair of fastener tapes whose end portions are reinforced with the reinforcing tapes are disclosed. On the end portion of a fastener tape to which a pin-and-box separator of a slide fast... | 11/16/1999 |
| 5811051 | Method and apparatus for continuously draw-molding fiber reinforced plastic rod formed with spiral groove A method of continuously draw-molding a fiber reinforced plastic rod formed with a spiral groove includes the steps of arranging in parallel a plurality of reinforcing fibers under tension, impregnating an unhardened thermosetting resin in the reinforcing... | 09/22/1998 |
| 5788808 | Apparatus for forming cavity substrates using compressive pads The present invention relates generally to a new apparatus and method for forming cavities in semiconductor substrates without the necessity of using an insert. More particularly, the invention encompasses an apparatus and a method for fabricating cavitie... | 08/04/1998 |
| 5772837 | Apparatus for forming cavities without using an insert The present invention relates generally to a new apparatus and method for forming cavities without using an insert. More particularly, the invention encompasses apparatus and method for fabricating cavities in MLC (multi-layer ceramic) without using inser... | 06/30/1998 |
| 5746874 | Apparatus and method for forming cavity substrates using flexible preform insert The present invention relates generally to a new apparatus and method for forming cavities in semiconductor substrates using at least one flexible preform insert. More particularly, the invention encompasses apparatus and method for fabricating cavities i... | 05/05/1998 |
| 5688570 | Method and apparatus for forming a multi-layer preform A preform mold assembly for the injection molding of a multi-layer preform for use in the blow molding of container. The preform mold assembly comprises a preform mold having a gate for receiving molten plastic material. The preform mold has a cavity with... | 11/18/1997 |
| 5665195 | Apparatus for forming cavities without using an insert The present invention relates generally to a new apparatus for forming cavities without using an insert. More particularly, the invention encompasses apparatus for fabricating cavities in MLC (multi-layer ceramic) without using inserts.... | 09/09/1997 |
| 5622733 | Tooling for the fabrication of composite hollow crown-stiffened skins and panels A process for forming composite hollow crown stiffened skins and panels in which a first layer or skin is placed on a forming surface of a female mold and, after forming a plurality of U-shaped stiffener elements in the first skin, a second skin is placed... | 04/22/1997 |
| 5565222 | Apparatus for hemming edges of stretch film and film having hemmed edges A strip of stretch-wrap material having flat, double thickness hems at opposite margins thereof is disclosed. The hemmed strip is formed on apparatus including a first roller having a width less than the width of stock material fed into the machine, where... | 10/15/1996 |
| 5520532 | Molding assembly for forming airfoil structures A fiberglass or other material skin is applied to a composite airfoil structure in a mold assembly having a partially compliant caul plate component which defines the shape of the lower surface of the airfoil. The caul plate component includes a first por... | 05/28/1996 |
| 5487853 | Energetic stitching for complex preforms A three-dimensional complex preform is made formed of various types of reinforcement fiberglass fibers with a binder at the interstices which rigidize the preform to the shape and form approximating the molded article, which can be handled and stored unti... | 01/30/1996 |
| 5147662 | Twisted wire manufacturing apparatus and concentric twisted wire manufacturing machine A twisted wire manufacturing apparatus is provided with cradle which is suspended at a pair of rotating shafts having extreme ends opposed to each other through bearings. A main body of the wire twisting machine is mounted on the cradle. A raw material gu... | 09/15/1992 |
| 5118278 | Twisted wire manufacturing apparatus and concentric twisted wire manufacturing machine A twisted wire manufacturing apparatus is provided with a plurality of injection dies communicating with an annular groove formed in a rotary head. An annular shoe for gradually reducing a sectional area of the annular groove is slidably fitted to the ann... | 06/02/1992 |
| 4976816 | Latex container with integral holding straps, and method and apparatus for making same A method and apparatus for integrally bonding two latex surfaces is disclosed, together with a latex bag having integral loops and/or holding straps which is made by the process. Briefly, a first curing latex surface such as a strip of curing latex, is he... | 12/11/1990 |
| 4929263 | Air cleaner An air cleaner has a filter, an annular filter holder formed on the peripheral edge of the filter, a flange portion of U-like cross-section to which the outer circumference of the filter holder is embedded, and a case provided with an air inlet port and a... | 05/29/1990 |
| 4840555 | Installation for the simultaneous thermoforming of at least one row of containers in thermoplastic material, each container being provided with a decorative banderole An installation is characterized in that a molding unit is fixed in unremovable fashion on a supporting unit equipped with means for controlling the vertical movements of banderole shaping members; the carriage of the banderole introduction and transverse... | 06/20/1989 |
| 4820588 | Shaped articles of polyfluoropolyethers having pendant perfluoroalkoxy groups Normally liquid peroxidic poly(perfluorooxyalkylene) compositions comprising a mixture of peroxidic poly(perfluorooxyalkylene) compounds, derivatives of the poly(perfluorooxyalkylene) compositions comprising a mixture of non-peroxidic polyfluoropolyether ... | 04/11/1989 |
| 4773844 | Apparatus for producing a synthetic resin skin An apparatus for the production of a synthetic resin skin uses a mold for forming at least two separate skin sections which are then joined prior or after a final heat treatment. The synthetic resin skin sections are produced in at least two separate mold... | 09/27/1988 |
| 4769418 | Propylene polymer film A propylene polymer film composed of a composition comprising 100 parts by weight of a crystalline propylene polymer and 0.01 to 3 parts by weight of a non-meltable crosslinked silicone resin powder having a mean particle diameter of 0.5 to 7 microns. The... | 09/06/1988 |
| 4743412 | Space portion processing method and apparatus for a slide fastener chain A space portion processing method and apparatus for preprocessing a slide fastener chain before attaching parts forming a separable end stop such as a retainer pin and a separable pin at the space portion of a slide fastener chain formed by cutting and re... | 05/10/1988 |
| 4705589 | Tire building machine A tire building machine and method employing a tire building drum for receiving at least one ply of tire material having an edge overhanging an axial end of the drum, a bladder turn-up mechanism extending axially outwardly from the drum, an annular array ... | 11/10/1987 |
| 4675070 | Machine for pressure testing and bottom capping plastic bottles The necks 10 of round bottomed plastic bottles 11 are fed into peripheral notches 9 of an upper turret plate 6, and stabilizing cups 47 are fed onto support plates 49 of vertically movable centering sockets 45 slidable in a lower turret plate 7 and dispos... | 06/23/1987 |
| 4591329 | Concentric loading vulcanizer and method of vulcanizing A vulcanizer and method for vulcanizing sheets of unvulcanized elastomeric material is presented in which the sheets are formed from generally rectangular small sections of unvulcanized material where the edges of the sections are tapered and mated togeth... | 05/27/1986 |
| 4138938 | Apparatus for producing three-dimensionally formed crackers A method of forming a soft plate-like baked piece into a three-dimensional cracker and an apparatus therefor. A plate-like cracker is placed immediately after baking onto two spaced, substantially parallel to each other plates and formed into a three-dime... | 02/13/1979 |
| 4070852 | Method and apparatus for cold lidding containers with elastomeric film A method and apparatus for cold lidding open-top containers with roll-stock elastomeric film by holding a web of the film in air-tight relation across the bottom of a lidding chamber and about its periphery, evacuating the lidding chamber to stretch the w... | 01/31/1978 |