Patents by Inventor Ralf Egerer
Ralf Egerer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240055158Abstract: A method for the continuous production of coaxial cables (224) having a thin-walled, radially closed outer conductor of nonferrous metal comprises supplying a flat strip of the nonferrous metal to a shaping apparatus (212), wherein the thickness of the strip corresponds to the wall thickness of the coaxial cable. The shaping apparatus is configured to continuously shape the supplied flat strip into a form corresponding to the outer conductor of the coaxial cable and around a cable core supplied before the outer conductor is closed. After the shaping, two opposite edges of the flat strip lie flush against one another in a contact region and are continuously welded to one another by a welding apparatus (216) by means of a laser, which radiates light having a wavelength smaller than 600 nm. The laser heats a point in a welding region that has a diameter smaller than 20% of the cross-sectional dimension of the coaxial cable.Type: ApplicationFiled: September 16, 2020Publication date: February 15, 2024Inventors: Ralf EGERER, Olaf PETERSEN, Steven DINKEL
-
Patent number: 11772144Abstract: A process is provided for the continuous production of thin-walled, radially closed hollow profiles composed of nonferrous metals and having a small cross section comprises supply of a flat strip of the metal to a forming apparatus at a first supply speed, the thickness of the strip corresponding to the wall thickness of the hollow profile. The forming apparatus continuous forms the flat strip into a shape corresponding to the hollow profile. After forming, two opposite edges of the flat strip rest flush against one another in a contact region and are continuously welded by means of a laser which emits light having a wavelength of less than 600 nm. The laser heats an area in a welding region having a diameter of less than 20% of the cross-sectional dimension of the hollow profile. The welded hollow profile is taken off from the welding region and taken up in an uptake device.Type: GrantFiled: September 25, 2020Date of Patent: October 3, 2023Assignee: NEXANSInventors: Ralf Egerer, Olaf Petersen, Steven Dinkel
-
Patent number: 11561358Abstract: A method for the continuous production of a thin-walled, perforated metal hollow profile with one or more fibre waveguides mounted therein. The method includes supplying of a flat metal strip at a first supply rate to a deforming device, which continuously deforms the metal strip into a metal hollow profile with a slot running in a longitudinal direction. Two opposite edges of the metal strip deformed into the metal hollow profile that lie flush against one another in a contact region extending in the longitudinal direction of the metal hollow profile are continuously welded to one another, drawn off from the welding region and perforated.Type: GrantFiled: December 4, 2020Date of Patent: January 24, 2023Assignee: NEXANSInventors: Ralf Egerer, Steven Dinkel, Nico Lange, Olaf Petersen
-
Patent number: 11548095Abstract: A process for the continuous production of thin-walled, radially closed hollow profiles which are composed of nonferrous metals and have a small cross section comprises supply of a flat strip of the nonferrous metal to a forming apparatus (212) at a first supply speed, where the thickness of the strip corresponds to the wall thickness of the hollow profile. The forming apparatus (212) is configured for continuous forming of the flat strip supplied into a shape corresponding to the hollow profile. After forming, two opposite edges of the flat strip rest flush against one another in a contact region. A welding apparatus (216) continuously welds the edges which rest flush against one another by means of a laser which emits light having a wavelength of less than 600 nm. The laser heats a point in a welding region which has a diameter which is less than 20% of the cross-sectional dimension of the hollow profile.Type: GrantFiled: September 25, 2020Date of Patent: January 10, 2023Assignee: NEXANSInventors: Ralf Egerer, Olaf Petersen, Steven Dinkel
-
Patent number: 11066292Abstract: A device (1) for transferring a fluid from a mooring area to a ship is specified. The device (1) comprises an articulated supporting structure (2), which has at least one first and one second support (3, 4, 5), which are connected pivotably to one another by at least one pivot joint (6, 7) and which each have a longitudinal axis, wherein the first support (3) is fixed on the mooring area in such a way that the longitudinal axis of said support can be rotated substantially vertically and the first support (3) can be rotated about the longitudinal axis thereof, and wherein the second support (4, 5) is pivotable in a vertical plane. The device (1) furthermore comprises at least one guide element (8), which is fixed on the supports (3, 4, 5) or on the at least one pivot joint (6, 7), and a first flexible line (9), which is supported by means of the guide element (8) and is guided substantially in the vertical plane.Type: GrantFiled: March 14, 2017Date of Patent: July 20, 2021Assignee: NEXANSInventors: Holger Schulz, Christian Reiter, Ralf Egerer
-
Publication number: 20210199910Abstract: A method (100) for the continuous production of a thin-walled, perforated metal hollow profile with one or more fibre waveguides mounted therein. The method includes supplying (102) of a flat metal strip at a first supply rate to a deforming device, which continuously deforms the metal strip into a metal hollow profile with a slot running in a longitudinal direction. Two opposite edges of the metal strip deformed into the metal hollow profile that lie flush against one another in a contact region extending in the longitudinal direction of the metal hollow profile are continuously welded to one another (110), drawn off from the welding region and perforated.Type: ApplicationFiled: December 4, 2020Publication date: July 1, 2021Inventors: Ralf EGERER, Steven DINKEL, Nico LANGE, Olaf PETERSEN
-
Publication number: 20210154768Abstract: For the production of fibre waveguides mounted in a metal hollow profile, a flat metal strip is supplied to a deforming unit. The deforming unit is configured for continuously deforming the supplied flat metal strip into a shape corresponding to the hollow profile. The hollow profile is continuously welded along a longitudinal seam by means of a laser. A filler gel with a viscosity which increases with decreasing temperature, and one or more fibre waveguides, are introduced into the welded hollow profile in a continuous process via a guide or protective tube. In order to introduce the one or more fibre waveguides with an excess length into the hollow profile, the welded hollow profile is elastically stretched, is cooled, and is relaxed again. The finished product is received in a receiving unit.Type: ApplicationFiled: November 12, 2020Publication date: May 27, 2021Inventors: Ralf EGERER, Olaf PETERSEN, Steven DINKEL
-
Publication number: 20210138521Abstract: A process for the continuous production of thin-walled, radially closed hollow profiles which are composed of nonferrous metals and have a small cross section comprises supply of a flat strip of the nonferrous metal to a forming apparatus (212) at a first supply speed. The thickness of the strip corresponds to the wall thickness of the hollow profile. The forming apparatus (212) is configured for continuous forming of the flat strip supplied into a shape corresponding to the hollow profile. After forming, two opposite edges of the flat strip rest flush against one another in a contact region. A welding apparatus (216) continuously welds the edges which rest flush against one another by means of a laser which emits light having a wavelength of less than 600 nm. The laser heats a point in a welding region which has a diameter which is less than 20% of the cross-sectional dimension of the hollow profile. The welded hollow profile is taken off from the welding region and taken up in an uptake device (226).Type: ApplicationFiled: September 25, 2020Publication date: May 13, 2021Inventors: Ralf EGERER, Olaf PETERSEN, Steven DINKEL
-
Publication number: 20210094126Abstract: A process for the continuous production of thin-walled, radially closed hollow profiles which are composed of nonferrous metals and have a small cross section comprises supply of a flat strip of the nonferrous metal to a forming apparatus (212) at a first supply speed, where the thickness of the strip corresponds to the wall thickness of the hollow profile. The forming apparatus (212) is configured for continuous forming of the flat strip supplied into a shape corresponding to the hollow profile. After forming, two opposite edges of the flat strip rest flush against one another in a contact region. A welding apparatus (216) continuously welds the edges which rest flush against one another by means of a laser which emits light having a wavelength of less than 600 nm. The laser heats a point in a welding region which has a diameter which is less than 20% of the cross-sectional dimension of the hollow profile.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Inventors: Ralf EGERER, Olaf PETERSEN, Steven DINKEL
-
Publication number: 20200071155Abstract: A device (1) for transferring a fluid from a mooring area to a ship is specified. The device (1) comprises an articulated supporting structure (2), which has at least one first and one second support (3, 4, 5), which are connected pivotably to one another by at least one pivot joint (6, 7) and which each have a longitudinal axis, wherein the first support (3) is fixed on the mooring area in such a way that the longitudinal axis of said support can be rotated substantially vertically and the first support (3) can be rotated about the longitudinal axis thereof, and wherein the second support (4, 5) is pivotable in a vertical plane. The device (1) furthermore comprises at least one guide element (8), which is fixed on the supports (3, 4, 5) or on the at least one pivot joint (6, 7), and a first flexible line (9), which is supported by means of the guide element (8) and is guided substantially in the vertical plane.Type: ApplicationFiled: March 14, 2017Publication date: March 5, 2020Inventors: Holger SCHULZ, Christian REITER, Ralf EGERER
-
Patent number: 9283607Abstract: A device for corrugating a metal pipe having a corrugation extending transversely of its longitudinal direction. The device has a ring-shaped corrugating head drivable by a first electric motor and is rotatable about its axis in the operating position and a ring-shaped corrugation disc, coupled to the ring-shaped corrugating head, projects radially inwardly from the corrugation head. The corrugation disc is mounted in the corrugation head so as to be adjustable in the radial direction. A support, coupled to the corrugation head, is arranged so as to also be rotatable about the axis of the corrugation head. An adjusting mechanism acting on the corrugation disc is mounted on the corrugation head. The adjusting mechanism serves for radially adjusting the corrugation disc and is adjustable by the support. The support is connected to a second electric motor serving for rotating the support about the axis (A) of the corrugation head.Type: GrantFiled: August 15, 2012Date of Patent: March 15, 2016Assignee: NEXANSInventors: Holger Schulz, Ralf Egerer
-
Patent number: 9162322Abstract: A method is provided for producing a pipe from a band which has a layer of a first metal and a layer of a second metal, the layers being metallurgically bonded to one another over the entire length of the band. Along the two longitudinal edges of the band, the first metal is removed from the second metal in strips which run over the entire length of the band. The band is formed into the open-seam pipe with the first metal located on the outside, and the abutting edges of the layer of the second metal are welded to one another forming a pipe which is closed all the way round. In the region of the weld seam, a layer of the first metal is then deposited on the second metal to produce a pipe with a layer of the first metal which is closed all the way round.Type: GrantFiled: October 15, 2014Date of Patent: October 20, 2015Assignee: NEXANSInventors: Ralf Egerer, Holger Schulz
-
Publication number: 20150102088Abstract: A method is provided for producing a pipe from a band which has a layer of a first metal and a layer of a second metal, the layers being metallurgically bonded to one another over the entire length of the band. Along the two longitudinal edges of the band, the first metal is removed from the second metal in strips which run over the entire length of the band. The band is formed into the open-seam pipe with the first metal located on the outside, and the abutting edges of the layer of the second metal are welded to one another forming a pipe which is closed all the way round. In the region of the weld seam, a layer of the first metal is then deposited on the second metal to produce a pipe with a layer of the first metal which is closed all the way round.Type: ApplicationFiled: October 15, 2014Publication date: April 16, 2015Inventors: Ralf Egerer, Holger Schulz
-
Publication number: 20150068020Abstract: A method for producing a tube (10) from metal, which consists of an inner tube (5) and at least one outer tube (7) surrounding the same, is provided. To create the outer tube (7), a metal strip (2) running in longitudinally is formed around the inner tube (5) moved in its axial direction so as to form a slit tube in such a way that its edges running in the longitudinal direction lie against one another at a slit extending in the longitudinal direction. The slit is welded to complete an outer tube that is closed all around. The inner tube (5) is cooled and the the finished outer tube (7) is reduced in its diameter until it is in contact with the cooled inner tube (5) in at least one reducing stage.Type: ApplicationFiled: August 6, 2014Publication date: March 12, 2015Inventors: Ralf Egerer, Holger Schulz
-
Patent number: 8800845Abstract: A device and a method for the positionally accurate arrangement of two material ends located opposite each other. The device includes two carriers with always one fixing device for each material end, wherein at least one of the two carriers is slidably guided relative to the second of the carriers, and at least the first carrier has a first adjusting member and a second adjusting member connected to the first adjusting member, wherein the adjusting members form a drive by means of which the first carrier is slidable against the second carrier.Type: GrantFiled: November 16, 2012Date of Patent: August 12, 2014Assignee: NexansInventors: Holger Schulz, Ralf Egerer, Wilhelm Kutzbach
-
Publication number: 20140091064Abstract: Method of welding edges which are placed against each other of at least one workpiece of metal by means of a laser is indicated, in which the areas of the workplace located at the edges are subjected to a pretreatment for increasing the absorption capacity of the light of the laser. For this purpose, initially color is sprayed or splashed onto the areas of the workpiece located at the edges, while avoiding any mechanical contact of the workpiece, by means of a device (7) which emits the color, and the edges of the workpiece are subsequently welded together by means of a laser (11).Type: ApplicationFiled: March 11, 2013Publication date: April 3, 2014Inventors: Ralf Egerer, Holger Schulz, Olaf Petersen, Christian Reiter
-
Publication number: 20130205858Abstract: A device for undulating a metal pipe having an undulation extending transversely of its longitudinal direction. The device has a ring-shaped undulating head drivable by a first electric motor and is rotatable about its axis in the operating position and a ring-shaped undulation disc, coupled to the ring-shaped undulating head, projects radially inwardly from the undulation head. The undulation disc is mounted in the undulation head so as to be adjustable in the radial direction. A support, coupled to the undulation head, is arranged so as to also be rotatable about the axis of the undulation head. An adjusting mechanism acting on the undulation disc is mounted on the undulation head. The adjusting mechanism serves for radially adjusting the undulation disc and is adjustable by the support. The support is connected to a second electric motor serving for rotating the support about the axis (A) of the undulation head.Type: ApplicationFiled: August 15, 2012Publication date: August 15, 2013Inventors: Holger Schulz, Ralf Egerer
-
Publication number: 20130186864Abstract: A device for continuously manufacturing pipes of metal, wherein the device includes a shaping unit (4) for shaping a pipe with a slot extending in the longitudinal direction from a longitudinally arriving metal strip, a welding device (7) for welding the contacting edges of the metal strip at the slot of the pipe, and a pulling device for pulling the pipe (9) which is now circumferentially closed in its longitudinal direction. The welding device (7) is composed of at least two separate welding heads (12,13) arranged in the pulling direction of the pipe (9) at a distance from each other, wherein the welding heads (12,13) each have at least one non-burning electrode.Type: ApplicationFiled: July 26, 2012Publication date: July 25, 2013Inventors: Ralf Egerer, Holger Schulz