Patents Assigned to PF Schweisstechnologie GmbH
-
Patent number: 11548071Abstract: A peeling apparatus for at least partially removing an external circumferential surface of an approximately cylindrical body is provided. The peeling apparatus includes: a C-shaped or C-like shaped base body, which has two free ends to form a peripheral opening, the cylindrical body being insertable between the two free ends and positionable concentrically in relation to a center of an incircle defined by the internal face of the base body; at least one external bearing mounted on an external axis positioned at each of the free ends, the external bearing abutting the cylindrical body when the body is positioned concentrically in relation to the center of the incircle; at least one central bearing attached to or positioned on the base body, spaced apart from the free ends and on a central axis; and a blade holder into which a blade is insertable so that the blade extends beyond the incircle.Type: GrantFiled: June 4, 2019Date of Patent: January 10, 2023Assignee: PF-SCHWEISSTECHNOLOGIE GMBHInventor: Achim Spychalski-Merle
-
Patent number: 8653424Abstract: A method to optimize the welding energy input into the heating coil of a heating coil fitting is disclosed. In particular, the invention pertains to a compensation method for the effects on the welding energy input from using a fundamental frequency outside the tolerance range for the AC welding voltage established for the heating coil fitting. A generator is one option to supply power to a device for the implementation of the invention-based method. It supplies an AC welding voltage to the heating coil with a fundamental frequency outside the tolerance range for the AC welding voltage as marked out for the heating coil fitting. Another option is especially the use of DC welding voltage for the heating coils of heating coil fittings. To execute the method, a welding power supply unit is connected to the contact elements of a heating coil fitting via connecting leads and connecting elements.Type: GrantFiled: August 26, 2004Date of Patent: February 18, 2014Assignee: PF-Schweisstechnologie GmbHInventors: Bernd Merle, Stefan Kehm, Achim Spychalski-Merle
-
Publication number: 20120085207Abstract: A peeling tool designed for at least partially stripping the outer peripheral surface of rotationally symmetric objects, in particular cylindrical plastic pipes, with the peeling tool featuring a peeling head with a drive shaft having a longitudinal axis and coaxially to this drive shaft arranged cylindrical blade roller. The cylindrical blade roller moves with the drive shaft. The peeling tool also featuring at least one peeling blade inside the blade roller with the peeling blade having a cutting edge which extends beyond the blade roller surface and defines the maximum outer diameter of the peeling head. The peeling tool also features two cylindrical guide elements with longitudinal axes, which are mounted to the face sides of the blade roller in a coaxial arrangement.Type: ApplicationFiled: October 7, 2011Publication date: April 12, 2012Applicant: PF SCHWEISSTECHNOLOGIE GMBHInventor: Bernd Merle
-
Publication number: 20110192199Abstract: The present invention relates to a skiving apparatus for at least partial removal of the outer circumferential surface of rotationally symmetric objects, in particular cylindrical plastic pipes, said apparatus containing a bell-shaped housing with a central longitudinal axis, said housing having a skiving recess which is coaxially aligned with the central longitudinal axis—and outwardly open at one end face of the bell-shaped housing via a feed opening. Disposed in said housing is a blade which projects into the skiving recess with its cutting edge aligned preferably parallel to the central longitudinal axis of said housing. According to the invention, the blade is mounted in a blade guide such that the blade is reversibly displaceable in the direction of the central longitudinal axis of the housing.Type: ApplicationFiled: February 4, 2011Publication date: August 11, 2011Applicant: PF SCHWEISSTECHNOLOGIE GMBHInventors: Bernd MERLE, Achim SPYCHALSKI-MERLE
-
Patent number: 7607376Abstract: An apparatus for paring tubular articles (R), especially for plastic tubes, has at least one support unit (10) for supporting the article (R) to be pared, a paring unit (40) which has a paring head (44) with at least one blade assembly (46) and at least one guide assembly (48), and a carrier unit (70) to which the support unit (10) and the paring head unit (40) are held in mutually spaced relationship. The paring head (44) is pivotable about a pivot axis (50) which extends at least approximately perpendicularly to the plane defined by the support unit (10) and the paring unit (40).Type: GrantFiled: February 6, 2006Date of Patent: October 27, 2009Assignee: PF Schweisstechnologie GmbHInventor: Bernd Merle
-
Publication number: 20070215600Abstract: A method to optimize the welding energy input into the heating coil of a heating coil fitting is disclosed. In particular, the invention pertains to a compensation method for the effects on the welding energy input from using a fundamental frequency outside the tolerance range for the AC welding voltage established for the heating coil fitting. A generator is one option to supply power to a device for the implementation of the invention-based method. It supplies an AC welding voltage to the heating coil with a fundamental frequency outside the tolerance range for the AC welding voltage as marked out for the heating coil fitting. Another option is especially the use of DC welding voltage for the heating coils of heating coil fittings. To execute the method, a welding power supply unit is connected to the contact elements of a heating coil fitting via connecting leads and connecting elements.Type: ApplicationFiled: August 26, 2004Publication date: September 20, 2007Applicant: PF-Schweisstechnologie GMBHInventors: Bernd Merle, Stefan Kehm, Achim Spychalski-Merle
-
Publication number: 20070204731Abstract: An apparatus for paring tubular articles (R), especially for plastic tubes, has at least one support unit (10) for supporting the article (R) to be pared, a paring unit (40) which has a paring head (44) with at least one blade assembly (46) and at least one guide assembly (48), and a carrier unit (70) to which the support unit (10) and the paring head unit (40) are held in mutually spaced relationship. The paring head (44) is pivotable about a pivot axis (50) which extends at least approximately perpendicularly to the plane defined by the support unit (10) and the paring unit (40).Type: ApplicationFiled: February 6, 2006Publication date: September 6, 2007Applicant: PF SCHWEISSTECHNOLOGIE GMBHInventor: Bernd Merle
-
Patent number: 7047850Abstract: An apparatus for paring tubular articles (R), especially for plastic tubes, has at least one support unit (10) for supporting the article (R) to be pared, a paring unit (40) which has a paring head (44) with at least one blade assembly (46) and at least one guide assembly (48), and a carrier unit (70) to which the support unit (10) and the paring head unit (40) are held in mutually spaced relationship. The paring head (44) is pivotable about a pivot axis (50) which extends at least approximately perpendicularly to the plane defined by the support unit (10) and the paring unit (40).Type: GrantFiled: October 17, 2002Date of Patent: May 23, 2006Assignee: PF Schweisstechnologie GmbHInventor: Bernd Merle
-
Patent number: 6590189Abstract: In a method and apparatus for measuring the welding voltage at the heating coil of a heating coil fitting a welding current supply unit is connected to the connecting elements of the heating coil fitting by way of connecting lines and junction elements, and the welding voltage is detected by means of a voltage measurement unit. The welding voltage is detected at a respective contact of each of the two connecting elements of the heating coil fitting in electrically insulated relationship with respect to the connecting lines and the junction elements.Type: GrantFiled: August 2, 2001Date of Patent: July 8, 2003Assignee: PF-Schweisstechnologie GmbHInventors: Achim Spychalski-Merle, Bernd Merle
-
Publication number: 20030079349Abstract: An apparatus for paring tubular articles (R), especially for plastic tubes, has at least one support unit (10) for supporting the article (R) to be pared, a paring unit (40) which has a paring head (44) with at least one blade assembly (46) and at least one guide assembly (48), and a carrier unit (70) to which the support unit (10) and the paring head unit (40) are held in mutually spaced relationship. The paring head (44) is pivotable about a pivot axis (50) which extends at least approximately perpendicularly to the plane defined by the support unit (10) and the paring unit (40).Type: ApplicationFiled: October 17, 2002Publication date: May 1, 2003Applicant: PF Schweisstechnologie GmbHInventor: Bernd Merle
-
Patent number: 6539634Abstract: Described is a paring device for cylindrical objects, in particular for plastic tubes, which comprises a plurality of rollers (7) assembled to form a running trough (3); a paring head (2) including at least one knife (5) and at least one guide roller (6), and a spindle drive (4) connecting the running trough (3) and the paring head (2). The spindle drive comprises a spindle guide provided with a slot-like opening and a spindle with an actuating handle (9) that is rotatable in the spindle guide, whereby the paring head and the running trough, between which the cylindrical object can be fixed, can be driven in relation to one another via the spindle. In order to enhance the handling of the paring device also for the treatment of saddle zones of cylindrical objects, the at least one guide roller (6) is supported in a bearing block (10) and freely rotating therein.Type: GrantFiled: June 5, 2001Date of Patent: April 1, 2003Assignee: PF Schweisstechnologie GmbHInventors: Bernd Merle, Achim Spychalski-Merle
-
Publication number: 20020036198Abstract: In a method and apparatus for measuring the welding voltage at the heating coil of a heating coil fitting a welding current supply unit is connected to the connecting elements of the heating coil fitting by way of connecting lines and junction elements, and the welding voltage is detected by means of a voltage measurement unit. The welding voltage is detected at a respective contact of each of the two connecting elements of the heating coil fitting in electrically insulated relationship with respect to the connecting lines and the junction elements.Type: ApplicationFiled: August 2, 2001Publication date: March 28, 2002Applicant: PF-Schweisstechnologie GmbHInventors: Achim Spychalski-Merle, Bernd Merle