Patents Assigned to Joh. Friedrich Behrens AG
  • Publication number: 20200306940
    Abstract: A compressed air nailer comprises a control line configured to trigger a driving process when a valve pin is displaced relative to a valve sleeve into an actuated position. The valve sleeve is configured to move between a triggering position and a locked position. A switching surface is coupled to at least one of a trigger and a placing sensor and configured to actuate the valve pin. An outer sleeve is configured to guide the valve sleeve. The switching surface is positioned at a switching surface position relative to the outer sleeve when both the trigger and the placing sensor are actuated. The switching surface is configured to displace the valve pin into the actuated position when the valve sleeve is positioned in the triggering position. The switching surface does not displace the valve pin into the actuated position when the valve sleeve is positioned in the locked position.
    Type: Application
    Filed: September 27, 2018
    Publication date: October 1, 2020
    Applicant: Joh. Friedrich Behrens AG
    Inventors: Martin Theberath, Florian Jung, Joachim Bauer
  • Publication number: 20200238492
    Abstract: A compressed air nailer comprises a driving tappet connected to a compressed air supply and configured to drive in a fastener. A triggering apparatus is configured to trigger a driving process and a working piston is coupled to a driving tappet. A safety actuator is configured to be displaced between a locked position and an open position, wherein when in the locked position, the safety actuator is configured to inhibit the triggering of the driving process when an actuation of the triggering apparatus occurs. The compressed air nailer further comprises a throttle and a safety control chamber configured to be aerated and deaerated by the throttle. A counterforce generator is configured to generate a counterforce that acts on the safety actuator and is directed in an opposite direction from the actuating force. The counterforce is linearly dependent on an operating pressure of the compressed air nailer.
    Type: Application
    Filed: September 27, 2018
    Publication date: July 30, 2020
    Applicant: Joh. Friedrich Behrens AG
    Inventor: Joachim Bauer
  • Publication number: 20200189078
    Abstract: A pneumatic nailer is provided comprising a working piston which is connected to a driving plunger for driving in a fastening means and which is subject to compressed air when a driving-in process is triggered, The nailer also includes a triggering device for initiating a driving-in process, a safety device configured to switch the nailer from a trigger-ready state to a locked state a control valve to control the pressure inside of the control chamber which includes a control valve member which is moveable along an adjustment path and a damper coupled to the control valve member.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Applicant: Joh. Friedrich Behrens AG
    Inventors: Martin Theberath, Joachim Bauer
  • Patent number: 10661470
    Abstract: A driving tool for driving fasteners means into workpieces comprising a main cylinder with a piston displaceable therein and a sealing element on the lower end with a first through hole through which a piston rod connected to the piston is guided in a sealing manner, a pressing cylinder that carries on the lower end an outlet tool with a driving channel into which a lower section of a driving tappet connected to the piston rod projects through an upper opening and that has a lower opening at the bottom for discharging fasteners, a magazine for fastening means that is attached to a side opening of the driving channel in order to supply fasteners to the driving channel, a first holding device that has a first holding element connected to the piston rod and a second holding element connected to the pressing cylinder that are designed so that the pressing cylinder can be displaced into an upper pressing cylinder position by displacing the piston into an upper piston position and the outlet tool can be placed onto
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: May 26, 2020
    Assignee: Joh. Friedrich Behrens AG
    Inventors: Joachim Bauer, Konrad Kahler
  • Publication number: 20190358798
    Abstract: A device for measuring absorbent bodies that are spaced from each other on a continuous web comprises at least two microwave resonators configured to measure values of a shift of a resonance frequency and a spreading of a resonance frequency. The continuous web moves through the at least two microwave resonators and the at least two microwave resonators are positioned at an offset with respect to each other in the transverse and transport direction relative to a direction of transport of the continuous web in order to measure the entire width of the continuous web. At least one of a moisture and a density of the absorbent bodies is determined using the at least two microwave resonators to continuously determine the values of the shift of the resonance frequency and the spreading of the resonance frequency.
    Type: Application
    Filed: May 15, 2018
    Publication date: November 28, 2019
    Applicant: Joh. Friedrich Behrens AG
    Inventor: Joachim Bauer
  • Publication number: 20190176312
    Abstract: A pneumatic nailer comprises a working piston connected to a driving plunger that is configured for driving in a fastener, a triggering device, and a switching device. The triggering device comprises a manually-operated trigger, a contact sensor, and a force-transmitting device configured to control a control valve. The control valve triggers the driving process in single triggering mode resulting from an actuation of the trigger when the contact sensor is actuated. The switching device has a first position, a second position, and a control piston that is configured to move between the first position and the second position. The switching device is configured to change the force-transmitting device from a contact triggering mode to a contact triggering position. In contact triggering position, the force-transmitting device is configured to control the control valve when the trigger is actuated as a result of the actuation of the contact sensor.
    Type: Application
    Filed: June 6, 2017
    Publication date: June 13, 2019
    Applicant: Joh.Friedrich Behrens AG
    Inventors: Martin THEBERATH, Joachim BAUER
  • Publication number: 20190134795
    Abstract: A pneumatic nail gun comprises a working piston connected to a driving ram that is configured to drive in a fastening means and is pressurized by air when a driving process is initiated. A hand-operated trigger and a contact sensor. Simultaneous actuation of the hand-operated trigger and contact sensor activates a first control valve and initiates the driving process if the pressure in a safety control chamber is above a given pressure threshold. A second control valve is configured to be activated upon actuation of the trigger. The safety control chamber is continuously de-aerated via a throttle and is separated from a pressurized casing interior when the second control valve is activated.
    Type: Application
    Filed: May 15, 2017
    Publication date: May 9, 2019
    Applicant: Joh. Friedrich Behrens AG
    Inventor: Joachim Bauer
  • Publication number: 20180333889
    Abstract: A driving tool for driving fastening means into workpieces comprising a drive device in a housing, an outlet tool protruding from the lower end of the housing with a driving channel, a driving tappet that projects into the driving channel and is connected at the top to the drive device, a magazine for fastening means that is attached to the driving channel in order to supply fastening means to the driving channel, and a nail centering at the bottom on the outlet tool that has a centering opening that is limited by guide elements movable in the radial direction that are pretensioned toward the centering opening by at least one spring device, characterized in that the nail centering comprises a centering housing in which at least one circle of balls is arranged, between which the centering opening is defined, and the spring device is an elastic ring that under pretensioning abuts the balls on the outside.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 22, 2018
    Applicant: Joh. Friedrich Behrens AG
    Inventor: Joachim Bauer
  • Publication number: 20180333888
    Abstract: A driving tool for driving fastening means into workpieces comprising a main cylinder with a piston displaceable therein and a sealing element on the lower end with a first through hole through which a piston rod connected to the piston is guided in a sealing manner, wherein a first air chamber connected to a first air inlet for filling with air for the purpose of displacing the piston downwards is present in the main cylinder above the piston, and a second air chamber connected to a second air inlet for filling with air for the purpose of displacing the piston upwards is present below the piston, a pressing cylinder that carries on the lower end an outlet tool with a driving channel into which a lower section of a driving tappet connected to the piston rod projects through an upper opening and that has a lower opening at the bottom for discharging fastening means, a magazine for fastening means that is attached to a side opening of the driving channel in order to supply fastening means to the driving chan
    Type: Application
    Filed: May 17, 2018
    Publication date: November 22, 2018
    Applicant: Joh. Friedrich Behrens AG
    Inventors: Joachim Bauer, Konrad Kahler
  • Patent number: 9782879
    Abstract: A pneumatic nailer includes a working piston connected to a driving plunger for driving in a fastening means and which is subjected to compressed air when a driving-in process is triggered. The nailer also includes a triggering device which has a manually actuatable trigger and a contact feeler. Actuating the trigger and the contact feeler together activates a first control valve and can trigger a driving-in process. A second control valve is activated when actuating the trigger independently of an actuation of the contact feeler. A chamber is provided, which is either aerated or deaerated via a throttle when the second control valve is activated. A locking piston is provided which is displaced from a resting position into a locked position when the pressure in the chamber passes a predetermined pressure threshold and which in the locked position prevents a driving-in process from being triggered.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: October 10, 2017
    Assignee: JOH. FRIEDRICH BEHRENS AG
    Inventor: Joachim Bauer
  • Patent number: 8956097
    Abstract: A staple strip having a plurality of staples connected together for fastening insulating panels to wooden supports, wherein each of the staples has a crown and two legs disposed parallel to each other, connected to the crown, the length of the legs is at least three time as long as the width of the crown, each leg has a cylindrical section and an end section, and each end section tapers with increasing distance from the cylindrical section, and converges tapered to a point disposed on a center longitudinal axis of the respective leg.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: February 17, 2015
    Assignee: Joh. Friedrich Behrens AG
    Inventor: Klaus Albrecht
  • Publication number: 20130251477
    Abstract: A staple strip having a plurality of staples connected together for fastening insulating panels to wooden supports, wherein each of the staples has a crown and two legs disposed parallel to each other, connected to the crown, the length of the legs is at least three time as long as the width of the crown, each leg has a cylindrical section and an end section, and each end section tapers with increasing distance from the cylindrical section, and converges tapered to a point disposed on a center longitudinal axis of the respective leg.
    Type: Application
    Filed: March 22, 2013
    Publication date: September 26, 2013
    Applicant: Joh. Friedrich Behrens AG
    Inventor: Klaus Albrecht
  • Patent number: 8109386
    Abstract: A fastening clip bar, comprising a plurality of fastening clips arranged parallel to each other, an adhesive joining the fastening clips with each other, and at least one elastic tape extending over the fastening clips which is glued together with the same.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: February 7, 2012
    Assignee: Joh. Friedrich Behrens AG
    Inventor: Burghardt Krohn
  • Patent number: 7104741
    Abstract: The present invention is directed to a fastener device that includes a base portion. At least one shank is coupled to the base portion. The at least one shank includes an end configured to be driven into a material. The at least one shank also includes a weakened shank region disposed between a first adjacent shank region and a second adjacent shank region. The weakened shank region includes a cross-section irregularly weakened with respect to the cross-sections of the first adjacent shank region and the second adjacent shank region.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: September 12, 2006
    Assignee: Joh. Friedrich Behrens AG
    Inventor: Burghardt Krohn
  • Patent number: 6065662
    Abstract: A tacker for a fastener, with which a tacking plunger is drivable by a drive unit and expels the fastener via a muzzle tool, with a switch device comprising a switch plunger, for actuating the drive unit which has a pivotably mounted release lever for actuating the switch plunger, with a contact feeler which can be actuated on placing onto a subject, which is movably mounted on the muzzle tool and which is pretensioned by a spring into the idle position in which it protrudes beyond the muzzle tool, and with a safety device which is arranged between the contact feeler and the switch device and which has a transmission device, for preventing a release of the drive unit when the contact feeler is in its idle position, said safety device comprising a slide element which is movably mounted on the side of the release lever directed towards the switch plunger and which is coupled to the transmission device and is movable with the release lever relative to the transmission device so that in the idle position of the c
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: May 23, 2000
    Assignee: Joh. Friedrich Behrens AG
    Inventor: Marcus Sauer
  • Patent number: 5782395
    Abstract: The invention relates to a driving tool for fastener elements, wherein a tool casing includes a valve cavity of a main valve closed by a casing cover, a valve piston being sealingly and slidingly mounted coaxially within the valve cavity about a work cylinder, the valve piston when in a lower position sealingly engaging upon an upper edge of the work cylinder so as to close an inlet passage communicating with a pressure air source and opening into an upper work space of the work cylinder, and the valve piston when in an upper position closing an outlet passage, which communicates with the work space via a throughbore of the valve piston, by sealingly engaging a valve seat element, the valve piston having a lower work surface which is continuously subjected to pressure of the pressure air source, and an upper work surface adapted to be selectively subjected to atmospheric pressure or pressure of the pressure air source by a control valve, the improvement of which is characterized by the valve piston having axi
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: July 21, 1998
    Assignee: Joh. Friedrich Behrens AG
    Inventor: Marcus Sauer
  • Patent number: D591132
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: April 28, 2009
    Assignee: Joh. Friedrich Behrens Ag
    Inventor: Suzanne Fischer-Zernin
  • Patent number: D687695
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: August 13, 2013
    Assignee: Joh. Friedrich Behrens AG
    Inventor: Klaus Albrecht
  • Patent number: D699535
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: February 18, 2014
    Assignee: Joh. Friedrich Behrens AG
    Inventor: Klaus Albrecht
  • Patent number: D724404
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: March 17, 2015
    Assignee: Joh. Friedrich Behrens AG
    Inventor: Tobias Fischer-Zernin