Did You Know...
...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 |
| 7240530 | Auxiliary embosser An auxiliary embosser for use with a mobile or stationary on or off-site roll forming apparatus which roll forms sheet material into objects such as a rain gutter or aluminum siding having complex cross section profiles. The auxiliary embosser includes a frame adapt... | 07/10/2007 |
| 7229681 | Device for satinizing and embossing flat materials The device for satinizing and embossing flat materials comprises an embossing roll and at least one mating roll, said rolls being connected to a driving system and adapted to be driven individually or in common and to be resiliently pressed against one another while... | 06/12/2007 |
| 7147453 | Device for treating flat material The invention relates to a device for embossing and/or glazing films. The device for embossing includes a first and second embossing roll, through which flat material can be fed under pressure, in order to create a pattern. An additional embossing roll is connected ... | 12/12/2006 |
| 7047782 | Method for roll forming, capable of preventing wrinkles and device therefor A die roll 3 comprises a core part 3a which is formed of an elastic material and faces a punch part 2a of a punch roll 2. The core part 3a presses a bottom portion 4b of a drawn portion 4 | 05/23/2006 |
| 7036347 | Device for embossing and/or satin-finishing a flat material A device for satinizing and simultaneously embossing flat materials that includes at least two embossing rolls. One roll is connected to a driving system. The rolls are adapted to be driven individually or in common and are adapted to be resiliently applied against ... | 05/02/2006 |
| 7024907 | Method and device for manufacturing a structured packing corrugation, and corresponding fluid-treatment apparatus A folding-pressing operation is carried out on the strip (17) in successive steps, by means of two opposed dies (11,12) with a relative movement alternating between coming together and moving apart, these dies having active surfaces (11,12) whic... | 04/11/2006 |
| 6978650 | Contact surface for a crimping roller in a roll forming tool A roll-forming tool for deforming a flange cap from a splayed configuration to engage a vehicle flange, the tool includes a polymeric contact surface disposed about a rigid drum. The polymeric contact surface can be in the form of a sleeve and integrally formed to t... | 12/27/2005 |
| 6820452 | Panel crimping machine having a gap adjustment mechanism The present invention is a crimping machine capable of forming an improved building panel that includes notched inclined side walls. The crimping machine imparts a unique design of notched inclined side walls. The crimping machine incorporates two sets of male and f... | 11/23/2004 |
| 6715411 | Device for the treatment of flat materials The device for embossing and/or calendering foils comprises at least one first and one second embossing roll between the flat material is passed under pressure in order to produce a pattern. The second embossing roll is followed by at least another embossing roll wh... | 04/06/2004 |
| 6694795 | Crimping system A crimping system comprises a frame having a plurality of plates with a clamp adjacent to the lower end. Applicator mechanisms are adapted to feed crimpable components coupled together by and releasably coupled to a carrier. A crimping mechanism has an an... | 02/24/2004 |
| 6655184 | Warm/hot corrugation machine and method for corrugating low-ductility foils A machine and method for corrugating a metal foil strip utilizes an enclosure defining a chamber and a controllable heat source for heating the chamber. The chamber may optionally include at least one gas that is also heated by the heat source. At least o... | 12/02/2003 |
| 6654996 | Tube remover and method for axially removing a metal tube A tube remover for extracting a tube from an opening in which the tube is mounted in a wall. The remover includes a nipper roll and an anvil roll, each of which is provided with a plurality of teeth formed in a radially outward facing surface of each resp... | 12/02/2003 |
| 6546775 | Panel crimping machine having a gap adjustment mechanism The present invention is a crimping machine capable of forming an improved building panel that includes notched inclined side walls. The crimping machine imparts a unique design of notched inclined side walls. The crimping machine incorporates two sets of... | 04/15/2003 |
| 6280856 | Deformable roof flashing material and a method of manufacturing such a material A deformable sheet material at least partly comprising a sheet metal or metal foil which is corrugated, e.g. by rolling, in continuous waveform in two directions (A, B) substantially orthogonal to each other. The sheet material can comprise aluminum foil ... | 08/28/2001 |
| 6223580 | Method and apparatus for continuous monitoring and amplitude adjustment of adjustable length heating element A method and apparatus for forming a heating element by corrugating a ribbon to a waveform having an amplitude based on a measured resistance per unit length of the ribbon. The amplitude of the corrugation is varied based on the measured resistance, to va... | 05/01/2001 |
| 6221299 | Structuring process that stiffens and protects the surface of thin material webs The present invention provides a profiling process which allows for the material sheet to be profiled so that the surface is minimally affected and only slight plastic deformation of the material occurs, and yet uniform three-dimensional structuring takes... | 04/24/2001 |
| 6217811 | Process and apparatus for vault-structuring of thin material sheets According to the invention thin sheets of foil are stiffened in a particular way by means of vault-structuring. The vault-structuring occurs either by self-organizing or following a self-organized design with a spade-shaped or drop-shaped pattern.... | 04/17/2001 |
| 6138359 | Curved wall and ceiling frame member and method and apparatus for producing the same Method and apparatus for producing a predetermining curvature in the flange and web of a structural member including an indexing mechanism and method for controlling the amount of curvature produced.... | 10/31/2000 |
| 6090495 | Flat structure made of foil or sheet metal to be used as a heat shield A flat structure made of foil or sheet metal to be used as a heat shield, for example in motor vehicles in order to insulate the muffler against heat. The flat structure comprises at least one layer and is divided into a plurality of flat regions. Some of... | 07/18/2000 |
| 5983692 | Process and apparatuses for producing a metal sheet with a corrugation configuration and a microstructure disposed transversely with respect thereto An apparatus for producing a metal sheet with a corrugation configuration that is of a first corrugation height, wherein the sheet has transversely or at an angle relative to the corrugation configuration a microstructure having a second, substantially sm... | 11/16/1999 |
| 5887470 | Method and apparatus for dent profiling The present invention discloses a process to produce staggered dent profiled material sheets in response to the application of either excess pressure or underpressure. A rectangular, staggered dent-profiled structure is achieved when a material sheet, in ... | 03/30/1999 |
| 5735158 | Method and apparatus for skew corrugating foil A method and apparatus for continuously forming corrugated sheet material in which corrugations are oriented at an oblique angle to side edges of the sheet material. The apparatus includes a pair of corrugating gear rollers supported for rotation on respe... | 04/07/1998 |
| 5732584 | Method and apparatus for roll forming convoluted springs An apparatus for roll forming convoluted springs in which a tempered steel strip is fed between a pair of forming rolls which produce a continuous convoluted steel strip. A compression mechanism downstream of the pair of forming rolls compresses the conti... | 03/31/1998 |
| 5689990 | Sheet material, method of producing same and rolls for use in the method A stud for use in partitioning is formed by passing plain sheet material between a pair of rolls (18, 19), each having projections, to form projections at both of the opposite surfaces of the material and then roll-forming the material to a channel, the p... | 11/25/1997 |
| 5595082 | Sheet metal corrugator A corrugating machine has a top reel and a bottom reel, each with roller bars that intermesh with each other so that sheet metal that is passed therebetween can be corrugated in a uniform manner. The roller bars deform the sheet stock into the corrugation... | 01/21/1997 |
| 5509288 | Forming roller for corrugated fin Forming rollers having a tooth tip concave portion at the tip of a tooth tip portion, a tooth bottom convex portion at a bottom of a tooth bottom portion and louver cutter at an oblique line portion between the tooth tip portion and the tooth bottom porti... | 04/23/1996 |
| 5491997 | Apparatus and method for forming a heat exchanger inner fin having cross-flow passages In a heat exchanger, an inner fin is formed from a thin plate of aluminum alloy having a corrugated cross-section in a widthwise direction. The inner fin includes multiple crest surfaces extending parallel to one another in a lengthwise direction and mult... | 02/20/1996 |
| 5356364 | Method for embossing webs Embossing a web between unmatched male and female embossing elements, wherein the sidewall slope of the female element is different than the sidewall slope of the male element, provides an embossed web having markedly improved embossing pattern definition... | 10/18/1994 |
| 5337592 | Non-stretch bending of sheet material to form cyclically variable cross-section members Machines for producing, processes for producing, and a process for designing tooling to bend longitudinally cyclically variable cross-section members from sheet material are provided. The products are for specific applications, and are produced in machine... | 08/16/1994 |
| 5179770 | Machine and method for fabricating a sheet metal structure having a corrugated core Three metal foils are simultaneously fed in opposing relationship through a machine which automatically fabricates a sheet metal sandwich structure therefrom. The foils are first tensioned in aligned opposing relationship. The center sheet is then fed thr... | 01/19/1993 |
| 5025649 | Metal honeycomb catalyst support having a double taper A catalytic converter includes a metal honeycomb catalyst support which is anchored in a canister so that it cannot telescope or blow out. The honeycomb catalyst support is made by folding a strip of metal back and forth upon itself. The lines of folding ... | 06/25/1991 |
| 5007271 | Device and a method for embossing a metal foil For embossing a metal foil the same is passed between two similarly toothed rollers positioned so that the teeth of each roller engages the teeth of the other. A high-quality embossing is obtained which may be kept practically constant over long periods o... | 04/16/1991 |
| 4967581 | Process for producing a rolled section having a corrugated part and installation intended for this purpose To produce an I-section (1) rolled in one piece, of which part (9) of the web (3) is corrugated, the section is passed between two rolls having an increased diameter over a portion of length, and it is subsequently passed between two rollers having a stru... | 11/06/1990 |
| 4923216 | Longitudinally reinforced crimped streamer A longitudinally reinforced crimped streamer includes a thin narrow metallic strip of flexible streamer material having a pair of opposite faces and a multiplicity of longitudinally-spaced, transversely-extending crimps set therein. The crimps form a seri... | 05/08/1990 |
| 4854147 | Wire pinch mark applicator Apparatus for applying a pinch mark to a wire (10) at a selected target position along the length of the wire. The apparatus operates in response to a first signal (MARK) indicating that the target position is at a known upstream location. The apparatus i... | 08/08/1989 |
| 4838067 | Corrosion resistant corrugated metal foil for use in wound and folded honeycomb cores There is provided a method for inhibiting corrosion at elevated temperatures of a nonnesting accordion folded or wound corrugated thin metal strip. The strip is corrugated with a longitudinally running series of peaks and valleys by passing the strip thro... | 06/13/1989 |
| 4823583 | Particulate trap There is provided a particulate trap for reducing the amount of particulates emanating from the exhaust of an internal combustion engine. The device utilizes a wound or accordion folded corrugated metal strip. The corrugations are characterized by a plura... | 04/25/1989 |
| 4753096 | Apparatus for controlling height of corrugations formed in a continuous length of strip stock In a machine for corrugating a continuous length of strip stock fed between a pair of corrugation rollers, apparatus controls height of corrugations formed by the rollers by selectively varying tension on the strip stock fed between the rollers. Such appa... | 06/28/1988 |
| 4748838 | Process for making obliquely corrugated thin metal strips A method for making a corrugated thin metal strip wherein corrugations are linear and extend obliquely from one longitudinal marginal edge to the opposite longitudinal marginal edge of the strip. The invention involves passing the thin metal strip through... | 06/07/1988 |
| 4711009 | Process for making metal substrate catalytic converter cores There is provided a process and apparatus for making, preferably continuously, a catalytic converter element or core especially adapted for the treatment of exhaust from an internal combustion engine, whether spark or compression ignited. The converter el... | 12/08/1987 |
