Bizarre Patents
An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
PatentStorm News
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 |
| 7861566 | Sheet-bending press for making pipe A bending press for making tubing from a substantially planar and longitudinally extending metal sheet has a support extending transversely generally parallel to the sheet vertically offset from the sheet, and a bender at one of the edges of the sheet and slidable t... | 01/04/2011 |
| 7854883 | System for cooling shape-rolled rails A system for cooling a hot rail of rail steel to a fine perlitic or ferritic or perlitic/ferritic structure has a plurality of separate cooling modules with independently adjustable cooling parameters. The rail is guided downstream through the modules of the cooling... | 12/21/2010 |
| 7748597 | Device for production of a tube The invention relates to a device (1) for production of a tube (2) with a polygonal, preferably rectangular cross-section, comprising a tube welding unit (3), in which the tube (2) is formed from a sheet metal strip and welded at the resu... | 07/06/2010 |
| 7578155 | Wire-rolling stand and method of operating same A rolling system has a rolling mill a rod workpiece, a wire block comprised of at least two roll stands downstream of the rolling mill, and a calibrating block comprised of three roll stands spaced apart in the direction downstream of the wire block. The workpiece i... | 08/25/2009 |
| 7553145 | Powder press A powder press for compacting a compressible mass into a rigid and dimensionally accurate body has a base, a first sleeve part in the base and having an inner surface, and a second sleeve part movable in a predetermined direction on the base adjacent the first die p... | 06/30/2009 |
| 7469566 | Roll stand One of a pair of rolls of a roll stand is formed with an axially throughgoing central hole through which passes a drive shaft having a pair of ends. A coupling at one end of the drive shaft rotates same and the one roll. This one roll can be shifted, normally vertic... | 12/30/2008 |
| 7416622 | Method and system for thermal treatment of rails In order to obtain a fine-lamellar perlite structure in the edge region of the heads of rails (1), especially hot-rolled rails for carriageways or railways, by specific thermal treatment during cooling from the rolling heat without the formation of bainite, p... | 08/26/2008 |
| 7340932 | Wire-rolling apparatus A rolling-mill cooling unit has a cooling-unit conveyor transporting fanned-out loops of wire in a transport direction toward a coiler spaced downstream from the cooling-unit conveyor and serving to organize the fanned-out loops of wire into coils or bundles. A feed... | 03/11/2008 |
| 7241086 | Apparatus for machining pipe ends, especially for cutting connecting threads A thread cutter for pipe ends has a tool head rotating coaxially with respect to a fixedly clamped pipe end and provided at tool holders in the form of radial sliders. Actuators which are parallel to the rotation axis are mounted on a frame shiftable with respect to... | 07/10/2007 |
| 7188502 | Method and device for changing the rolls of a tube welding stand The invention relates to a method for changing sets of top rolls, lateral rolls, and a bottom roll, and mounted in chocks of a welding stand of a continuously operating longitudinal tube welding machine. The inventive method enables the rolls to be changed faster, u... | 03/13/2007 |
| 7159435 | Apparatus for straightening pipe A straightening apparatus for large diameter thick wall pipe has an expander head at one end of a beam inserted into the pipe and having a radially displaceable saddle positionable at any selected location along the beam. The saddle may be shifted along the beam by ... | 01/09/2007 |
| 7150851 | Powder press An apparatus for pressing a mass into a coherent workpiece has a mold body defining a chamber and a mold liner in the chamber having a generally cylindrical pressing surface centered on an axis, directed in one radial direction, and defining a mold cavity and an opp... | 12/19/2006 |
| 7116428 | Method and device for measuring wall thickness of a pipe in a pipe-rolling mill A method and device for measuring the wall thickness of a pipe in a pipe-rolling mill wherein a Fabry-Pérot interfero-meter has its mirror spacing set by providing an input to a linear activity for one of the mirrors from a controller receiving an input from a phot... | 10/03/2006 |
| 7096706 | Drawing apparatus and method of operating same A single carriage of the drawing apparatus for pulling a continuous metal workpiece through a drawing die is displaceable back and forth by a linear electronic motor drive. A coil forms a supply upstream of the die which can pay off a length of the workpiece to form... | 08/29/2006 |
| 7082799 | Drive system for a rolling mill The invention concerns a drive system (1) for a rolling mill, especially for a cold pilger rolling mill with at least one roll frame (1) movable back and forth, at least one crank drive (3) which has a crank arm (4) with a counterweight (... | 08/01/2006 |
| 7073362 | Drive for cold pilger rolling stand A drive for reciprocating a roll stand of a pilger cold-rolling system has a crank rotatable about an axis transverse to a reciprocation direction of the stand and a tie rod having an outer end journaled on the stand and an inner end eccentrically journaled on the c... | 07/11/2006 |
| 7062946 | Guide roller system for guiding the rods between the finishing stands of rod rolling mills A roller guide for the guidance of the wire or rod between the finish rolling mill stands of a wire or rod rolling line. The guide has a guide roller pair which are mutually juxtaposed and journaled on free ends of pivot arms of double arm levers. The lever journals... | 06/20/2006 |
| 7043953 | X-H rolling method for parallel-flange steel sections (supports) A method of X-H rolling of a parallel flange steel structural shape or beam with an H cross section using a compact rolling group. In the first universal mill frame the vertical roll have roll surfaces inclined to one another at an angle up to 10° whereas in the se... | 05/16/2006 |
| 7024899 | Roll assembly for a rolling mill A roll shaft assembly especially for a planetary cross roll rolling mill for tubing and the like has the roll shaft and mill roll connected by a conical centering arrangement and a screw, preferably coaxial therewith with the torque transfer being effected by tooth ... | 04/11/2006 |
| 7004005 | Method and apparatus for producing pipe from metal plate A bending press for bending metal plates for the production of large diameter pipe has an articulation for the upper die member which reduces bending moments as applied to the bending sword or ram. The articulation can be between the upper die and the foot of the be... | 02/28/2006 |
| 6976377 | Method of and apparatus for producing tubes of metal In the planetary skew rolling blooms to form seamless metal tubing or pipe the internal tool is retracted at the leading and/or trailing end of the tubular bloom to allow the rolls to seal the end or ends and prevent coolant from entering the rolled tubing or bloom.... | 12/20/2005 |
| 6957567 | Method and system for the controlled application of fluid pressure to a load, especially for pressure testing pipe A method and system for the controlled application of fluid pressure of a load, such as a large pipe to be pressure tested utilized small pressure converters which are operated by a common controller at the hydraulic side to fill and pressurize the pipe. One pressur... | 10/25/2005 |
| 6945083 | Method of and apparatus for determining the eccentricity of a hollow billet The eccentricity of a hollow billet is measured at the outlet of an inclined-roll rolling mill by launching an ultrasonic pulse into the billet from a laser of a measuring device and measuring the transit time of an echo pulse also utilizing a laser and an optical a... | 09/20/2005 |
| 6837090 | Rolling line for the continuous rolling of strand-shaped products A rolling train for the continuous rolling of strand shaped products has at each rolling location a pair of fixed stations which are closely spaced and have rails such that a mill stand at one station can be displaced away from the rolling line and be replaced at th... | 01/04/2005 |
| 6810742 | Method of and an apparatus for determining the speed of sound in a material The speed of sound c is determined in a material as a function of the temperature T by heating an end of an elongated sample body of the material of the temperature and determining the time difference for the receipt of echoes from two reflective zones at the heated... | 11/02/2004 |
| 6715332 | Method of drawing metal workpieces and drawing unit for a drawing machine A drawing apparatus for drawing metal and articles has at last one drawing carriage and a linear motor complex which determines the pattern of movement of that carriage and hence of the drawing operation. ... | 04/06/2004 |
| 6701766 | Plate-stretching grip head A metal-stretching grip head has a row of parallel upper plates wholly to one side of a plane and having front ends and rear ends and a row of parallel lower plates wholly to an opposite side of the plane and having front ends forming at the plane with th... | 03/09/2004 |
| 6688152 | Modular drawing apparatus and drawing A drawing apparatus is assembled from modular units utilizing modular path-forming members and holder modules which can carry the drawing die and drawing carriages shiftable on the guide modules. The drives for the carriages are individual linear motors w... | 02/10/2004 |
| 6684675 | Drawing machine An apparatus for drawing a strand has a frame extending in a longitudinal direction, a pair of substantially identical linear motors each having a primary fixed on the frame, and a movable secondary slidable along the respective primary in the direction. ... | 02/03/2004 |
| 6651473 | Cold-rolling seamless copper tubing Seamless tubing of a nonferrous material is made by continuously and concomitantly advancing a tubular workpiece of the nonferrous material along an axis through a rolling station, radially squeezing the workpiece in the station between external rolls and... | 11/25/2003 |
