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| Number | Title | Issue Date |
| 7757530 | Planographic printing plate manufacturing apparatus The present invention provides a planographic printing plate manufacturing apparatus comprising: a cutting process section which cuts a web in a thickness direction of the web by pinching the web with at least a pair of an upper knife and a lower knife, wherein the ... | 07/20/2010 |
| 7472573 | Tooling assembly A tooling assembly 10 having a first set of blades which are formed from a first material and a second set of blades which are formed from a second material and which may be used to perform a cutting operation. ... | 01/06/2009 |
| 7350387 | Tooling assembly A tooling assembly 10 having a first set of blades which are formed from a first material and a second set of blades which are formed from a second material. More particularly, each carbide blade of each member 62, 64, 66, and 68 is operatively ... | 04/01/2008 |
| 7272968 | Device for shaping corrugated fin The configuration comprises a shaping member 3 having a substantially rectangular shape and shaping the inner surface side of a bent portion 1b, a worm gear 2 slidably linked with the shaping member 3 and gradually reducing the dis... | 09/25/2007 |
| 7237603 | Heat exchanger of ventilating system A heat exchanger of a ventilating system includes a plurality of heat exchange plates which are laminated at a predetermined interval, a first heat exchange portion which is positioned among the heat exchange plates and through which outdoor air passes and a second ... | 07/03/2007 |
| 7228720 | Rotary apparatus and method A rotary apparatus having a first rotating die assembly and a second rotating die assembly arranged in juxtaposition with one another on respective first and second sides of a strip work piece movement path, and operable in unison together to perform operations on a... | 06/12/2007 |
| 7146779 | Method of packaging and shipping compressible structural panels A method of packaging and shipping compressible structural panels is disclosed. Compressible structural panels are provided, typically with first and second sheets separated by compressible or collapsible dividers. The structural panels are stacked and thereafter co... | 12/12/2006 |
| 7096703 | Method for making a three-dimensional metal structure The invention provides a method of making a three-dimensional metal structure, the method being characterized by the following steps: making longitudinal cuts in a sheet metal strip by causing the strip to pass between two rollers ... | 08/29/2006 |
| 7069758 | Metal stud punch system and a method of manufacture A portable metal stud punching system has an alignment frame with an infeed alignment port in a first side and an outfeed alignment port in an opposite side. There is a punch and die positioned within the alignment frame. A length of metal stud is inserted through t... | 07/04/2006 |
| 7066002 | Metal sheet punch device A metal sheet punch device for metal sheets which includes a longitudinally extended frame having forward and rearward ends and alignment devices for aligning the frame on a metal sheet. At least two metal punch devices are mounted on the frame, each including a met... | 06/27/2006 |
| 7059397 | Heat exchanger with brazed plates The invention concerns a heat exchanger which includes a stack of plates defining passages, containing corrugated fins which include a transverse section with repeated corrugated pattern extending between two upper and lower end planes. The pattern includes a base c... | 06/13/2006 |
| 7044211 | Method of forming heat exchanger tubing and tubing formed thereby A method of forming tubing with integral fins oriented parallel to its length, and to a heat exchanger tube produced by such a method. The invention involves extruding a tube so that the tube has at least one internal longitudinal passage, an external surface having... | 05/16/2006 |
| 7013961 | End plate for heat exchangers, heat exchanger having the same, and manufacturing method thereof An end plate for heat exchangers, includes a plurality of bodies and a connecting part. Each of the plurality of bodies has a plurality of holes to allow a refrigerant pipe to pass through the plurality of bodies. The connecting part connects the plurality of bodies... | 03/21/2006 |
| 7004003 | Bending machine for profiles Bending machine for profiles comprising at least a drawing assembly able to draw the profiles, a first shearing device arranged downstream of the drawing assembly and bending means arranged downstream of the first shearing means. A second shearing device is arranged... | 02/28/2006 |
| 6997027 | Forging punch There is disclosed a punch for forging a metallic plate member. A first die is adapted to be opposed to a first face of the plate member. A second die is adapted to be opposed to a second face of the plate member. A plurality of first projections are provided on the... | 02/14/2006 |
| 6968891 | Louver fin and corrugation cutter for forming louver fin A virtual quadrangle having vertexes respectively configured by: inner ends which are located respectively at a corner of inner cut end faces of the louvers formed in flat portions that are opposed to each other across the bent portion; and outer ends which are loca... | 11/29/2005 |
| 6953641 | Battery grid A method of forming battery grids or plates that includes the step of applying a lead alloy coating to a continuous strip of interconnected battery grids formed from a lead alloy grid material is disclosed. The battery grids may be formed by a continuous battery gri... | 10/11/2005 |
| 6907919 | Heat exchanger louver fin A heat exchanger fin includes a plurality of vortex generator louvers spaced apart, such that there is a gap between adjacent louvers through which a fluid, such as air, flows. Each vortex generator louver is provided with one or more mini-vortex generators along an... | 06/21/2005 |
| 6874345 | Serpentine fin with extended louvers for heat exchanger and roll forming tool for manufacturing same A heat exchanger comprising at least one row of flattened tubes through which a heat exchange medium may pass. A serpentine fin 10 disposed between adjacent flattened tubes has relatively straight segments that are connected by bend radii 20. The fin | 04/05/2005 |
| 6782727 | Method and system for support and/or transport of a wire The present invention relates to a method of and a system for carrying out at least one operation on at least one wire(1) in a wire forming manufacturing machine, said operation involving deformation of at least a part of the wire, said machine comprising at ... | 08/31/2004 |
| 6662614 | Tool and its finishing method of surface for center fin member of air conditioning apparatus for vehicle A tool and its finishing method of surface for center fin member of an air conditioning apparatus for a vehicle. The tool includes a plurality of fin blades each having a circular cutter shape and being provided at a periphery thereof with a plurality of ... | 12/16/2003 |
| 6662615 | Method to reduce air center middle margin turnaround for folded tube applications An improved air center form roll for use in combination with a like form roll to produce an accordion-like folded fin for a heat exchanger core, the form roll being of the type comprising a plurality of form discs abutted one to the other and having a plu... | 12/16/2003 |
| 6546774 | Method of making a lanced and offset fin Slow production speeds in the manufacture of lanced and offset fins for use in heat exchanger tubes are eliminated through the use of a method of forming the fins involving a plurality of roll assemblies located along a forming path which may operate on a... | 04/15/2003 |
| 6453711 | Flat turbulator for a tube and method of making same A tube and turbulator and method of making the same for a heat exchanger including a base, a top spaced from and opposing the base, a first side interposed between the base and the top along one side thereof, and a second side interposed between the base ... | 09/24/2002 |
| 6430983 | Method for manufacturing corrugated fin A plurality of louvers are formed symmetrically on the two sides of the width-direction central portion of the inclined portion of a corrugated fin, and include, one-side louvers, which are formed integrally in one and the other ends of the central portio... | 08/13/2002 |
| 6167601 | Method for manufacturing ventilated sheet-metal floor members A method of manufacturing interlocking sheet metal floor members for use in a grain storage bin or like application requiring passage of fluid through the floor members without permitting passage of granular material therethrough. The method comprises the... | 01/02/2001 |
| 6145363 | Forming machine for metal strips, in particular for the manufacture of plates for electrics accumulators Forming machine for metal strips, in particular for the manufacture of plates for electric accumulators, comprising moving means (2, 3) designed to convey a continuous strip (10) through an incision zone (8) associated with forming means (7) provided with... | 11/14/2000 |
| 6032503 | Method and apparatus for roll forming a plurality of heat exchanger fin strips A method and apparatus are provided for roll forming a plurality of fin strips (10) from a single elongated strip of sheet material (20). The strip (20) includes a pair of adjacent, longitudinal rows (22, 24) of alternating crests (26) and valleys (28), w... | 03/07/2000 |
| 5896635 | Apparatus for forming expanded mesh An apparatus for gripping, guiding and transporting opposite longitudinal side edges of slit, deformable strip for forming expanded mesh sheet. One chain of each of two pairs of opposed endless chains has a longitudinal recess adjacent a longitudinal plan... | 04/27/1999 |
| 5722280 | Two stage die set A two stage die set for sequentially blanking an opening in a work piece, and thereafter forming edges of the work piece around the opening and having a male die assembly, having a male blanking die, a male forming die spaced from the male blanking die, a... | 03/03/1998 |
| 5682784 | Roll forming tool for manufacturing louvered serpentine fins A roll forming tool for manufacturing louvered serpentine fins. The tool has a plurality of fin blades each having a predetermined size and shape. Each of the blades has a plurality of cutting edges for forming scallops in a serpentine fin such that a lou... | 11/04/1997 |
| 5609075 | Razor blade manufacture A process for manufacturing razor blades from a continuous strip of metal stock by stamping a plurality of openings in the strip for precise registry of the blade edge when employed in the razor and then running the stock through a device which partially ... | 03/11/1997 |
| 5588319 | Method and apparatus for making heat exchanger fins A method and apparatus for forming a strip of fins with louvers comprising providing fin forming rolls comprising stacked carbide plates having rolling and cutting edges forming fins with louvers, and directing a strip of clad aluminum between an opposed ... | 12/31/1996 |
| 5575065 | Tube slitting traveler A tube traveler and slitter for extracting a tube from a heat exchanger tubesheet and slitting the tube longitudinally into two segments includes two spaced apart deforming rolls having a nip between the peripheries defining a passageway. The periphery of... | 11/19/1996 |
| 5535505 | Tube slitting traveler A tube traveler and slitter for extracting a tube from a heat exchanger tubesheet and slitting the tube longitudinally into two segments includes two spaced apart deforming rolls having a nip between the peripheries defining a passageway. The periphery of... | 07/16/1996 |
| 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 |
| 5375446 | Rotary expanded grid cutter and related process In a method of forming expanded metal mesh from a deformable strip which includes the steps of preforming and slitting the strip by intermeshing tooth segments of at least an upper disk and a lower disk with the strip passing therebetween, wherein the too... | 12/27/1994 |
| 5359873 | Fiber for reinforcing concrete or similar materials made of wire of a flat material strip and device for manufacturing such fibers A fiber for reinforcing concrete is manufactured from wire or flat bands and has a linear center section and a first intermediate section connected to the first end of the center section and a second intermediate section connected to the second end of the... | 11/01/1994 |
| 5327767 | Press working apparatus A press working apparatus has a press machine provided with a pair of press dies. The press machine presses a preheated metal slab being transferred in a feeding direction with the press dies mutually opposed to press the metal slab in a direction perpend... | 07/12/1994 |
| 5176020 | Method for manufacturing a corrugated fin and a shaping roll apparatus therefor A plurality of toothed molds are formed on the respective outer peripheral surfaces of first and second rolls for shaping a fin material, each of the toothed molds having ridges extending parallel to the respective axes of the rolls. Each toothed mold inc... | 01/05/1993 |
