Patents Assigned to LPKF Laser & Elektronika D.O.O.
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Patent number: 8091475Abstract: A stencil stretcher frame unit includes a stencil stretcher frame for stretching a printing stencil, the stencil stretcher frame including a seat; a protective device accommodated in the seat and holding the stencil stretcher frame, the protective device including a plurality of protective bars configured to hold the printing stencil in a plane and to accommodate a circumferential edge of the printing stencil so as to cover the circumferential edge along a circumference of the printing stencil, adjacent ones of the plurality of protective bars being supported on each other at respective end areas of the protective bars so as to allow a relative movement with respect to each other; and a joining device configured to fasten the protective device to the stencil stretcher frame.Type: GrantFiled: September 10, 2010Date of Patent: January 10, 2012Assignee: LPKF Laser & Elektronika D.O.O.Inventors: Janez Zepic, Bostjan Podlipec
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Publication number: 20100326296Abstract: A stencil stretcher frame unit includes a stencil stretcher frame for stretching a printing stencil, the stencil stretcher frame including a seat; a protective device accommodated in the seat and holding the stencil stretcher frame, the protective device including a plurality of protective bars configured to hold the printing stencil in a plane and to accommodate a circumferential edge of the printing stencil so as to cover the circumferential edge along a circumference of the printing stencil, adjacent ones of the plurality of protective bars being supported on each other at respective end areas of the protective bars so as to allow a relative movement with respect to each other; and a joining device configured to fasten the protective device to the stencil stretcher frame.Type: ApplicationFiled: September 10, 2010Publication date: December 30, 2010Applicant: LPKF LASER & ELEKTRONIKA D.O.O.Inventors: Janez ZEPIC, Bostjan PODLIPEC
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Patent number: 7814828Abstract: A stencil stretcher frame unit comprises a stencil stretcher frame for stretching a printing stencil, the stencil stretcher frame including a seat; a protective device accommodated in the seat and holding the stencil stretcher frame, the protective device including a plurality of protective bars configured to hold the printing stencil in a plane and to accommodate a circumferential edge of the printing stencil so as to cover the circumferential edge along a circumference of the printing stencil, adjacent ones of the plurality of protective bars being supported on each other at respective end areas of the protective bars so as to allow a relative movement with respect to each other; and a joining device configured to fasten the protective device to the stencil stretcher frame.Type: GrantFiled: April 29, 2009Date of Patent: October 19, 2010Assignee: LPKF Laser & Elektronika D.O.O.Inventors: Janez Zepic, Bostjan Podlipec
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Publication number: 20090205519Abstract: A stencil stretcher frame unit comprises a stencil stretcher frame for stretching a printing stencil, the stencil stretcher frame including a seat; a protective device accommodated in the seat and holding the stencil stretcher frame, the protective device including a plurality of protective bars configured to hold the printing stencil in a plane and to accommodate a circumferential edge of the printing stencil so as to cover the circumferential edge along a circumference of the printing stencil, adjacent ones of the plurality of protective bars being supported on each other at respective end areas of the protective bars so as to allow a relative movement with respect to each other; and a joining device configured to fasten the protective device to the stencil stretcher frame.Type: ApplicationFiled: April 29, 2009Publication date: August 20, 2009Applicant: LPKF Laser & Elektronika d.o.o.Inventors: Janez ZEPIC, Bostjan PODLIPEC
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Patent number: 7540238Abstract: A protective device with a frame includes protective bars for holding a printing stencil in a plane and joining means for fastening to a stencil stretcher frame, whereby the protective bars accommodate the edge of the printing stencil along its circumference in a manner that covers the edge. In addition, a stencil stretcher frame is provided for stretching a printing stencil held in a such protective device Adjacent protective bars, while forming the frame, are supported on each other with one of their respective end areas in a manner that allows a relative movement with respect to each other. For the stencil stretcher frame, a seat for accommodating the protective device and a joining means for fastening the protective device are provided.Type: GrantFiled: June 14, 2005Date of Patent: June 2, 2009Assignee: LPKF Laser & Elektronika D.O.O.Inventors: Janez Zepic, Bostjan Podlipec
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Patent number: 7381018Abstract: The invention relates to a tool holder 1 for a rotating tool, especially a drilling head and/or milling head, comprising a drive shaft 4 that can be connected to a drive motor and a collet chuck 2 that is non-rotatably connected to the drive shaft 4 in order to hold the tool, whereby the drive shaft 4 and the collet chuck 2 are positively connected by means of a coupling element 5 for purposes of transmitting torque. In order to securely hold the tool and to concurrently have a simple construction of the tool holder 1, it is proposed for the coupling element 5 to be axially displaceable relative to the collet chuck 2 so as to release the tool.Type: GrantFiled: January 10, 2006Date of Patent: June 3, 2008Assignee: LPKF Laser & Elektronika D.O.O.Inventors: Janez Zepic, Bostjan Podlipec
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Publication number: 20070003385Abstract: A tool holder for a rotating tool, especially a drilling head and/or milling head, includes a drive shaft that can be connected to a drive motor and a collet chuck that is non-rotatably connected to the drive shaft in order to hold the tool. The drive shaft and the collet chuck are positively connected by means of a coupling element for purposes of transmitting torque. In order to securely hold the tool and to concurrently have a simple construction of the tool holder the coupling element may be axially displaceable relative to the collet chuck so as to release the tool.Type: ApplicationFiled: January 10, 2006Publication date: January 4, 2007Applicant: LPKF Laser & Elektronika d.o.o.Inventors: Janez Zepic, Bostjan Podlipec
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Publication number: 20060021527Abstract: A protective device with a frame includes protective bars for holding a printing stencil in a plane and joining means for fastening to a stencil stretcher frame, whereby the protective bars accommodate the edge of the printing stencil along its circumference in a manner that covers the edge. In addition, a stencil stretcher frame is provided for stretching a printing stencil held in a such protective device. Adjacent protective bars, while forming the frame are supported on each other with one of their respective end areas in a manner that allows a relative movement with respect to each other. For the stencil stretcher frame, a seat for accommodating the protective device and a joining means for fastening the protective device are provided.Type: ApplicationFiled: June 14, 2005Publication date: February 2, 2006Applicant: LPKF Laser & Elektronika d.o.oInventors: Janez Zepic, Bostjan Podlipec