Patents by Inventor Ulrich Schiestl

Ulrich Schiestl 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).

  • Patent number: 7424870
    Abstract: A combustion-engined setting tool for driving fastening elements such as, e.g., nails, bolts, pins in a constructional component includes a combustion chamber (13) for combusting an oxidant-fuel mixture, elements for closing the inlet opening (15) and the outlet opening (19) provided in the combustion chamber, ventilator (41) for generating a gas flow from the inlet opening through the combustion chamber and toward the outlet opening (19), and a combustion-energy driven drive unit (42) for driving the ventilator.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: September 16, 2008
    Assignee: Hilti Aktiengesellschaft
    Inventors: Walter Odoni, Ulrich Schiestl
  • Publication number: 20080210736
    Abstract: A hand-held drive-in tool for driving fastening elements (60) in a workpiece (U) includes a drive-in ram (13) displaceable in a guide (12), a spring (31) for driving the drive-in ram (13), a tensioning device (70) for loading the driving spring (31), a locking device (50) for retaining, in its locking position (54), the driving spring (31) in its loaded position thereof (33), and a sliding nut (78) supported on a threaded spindle (76), which is rotatable by the motor (71) of the tensioning device (70), without a possibility of rotation thereabout but with a possibility of an axial displacement therealong, the sliding nut (78) being axially displaceable, upon actuation of the motor (71) of the tensioning device (70) by a control unit (23) of the drive-in tool (10), from the first end position (83) to the second end position (84) for displacing the driving spring (31) into the loading position (33) of the driving spring (33), and being subsequently displaceable from its second end position (84) into the first e
    Type: Application
    Filed: December 10, 2007
    Publication date: September 4, 2008
    Inventors: Matthias Blessing, Hans Gschwend, Ulrich Schiestl, Robert Spasov
  • Patent number: 7413104
    Abstract: A combustion power-operated setting tool has a propellant-driven setting mechanism, (12) an ignition device (18) for igniting a propellant, a receptacle (15) for receiving a propellant holder (20) and a device (30) for sensing presence of the propellant holder (20) in the receptacle (15) and which blocks ignition of the propellant by the ignition device in absence of the propellant holder in the receptacle (15) and provides for the ignition of the propellant by the ignition device upon sensing the presence of the propellant holder (20) in the receptacle (15).
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: August 19, 2008
    Assignee: Hilti Aktiengesellschaft
    Inventor: Ulrich Schiestl
  • Patent number: 7410085
    Abstract: A drive-in tool for driving in fastening elements includes a driving ram (13) displaceable in a guide (12) and driven by a drive flywheel (32), a drive unit (30) having an electric motor (31) for rotating the drive flywheel (32), a drive coupling (35) for connecting a coupling section (15) of the driving ram (13) with the at least one drive flywheel (32), and an acceleration device (40) for accelerating the driving ram (13), together with the coupling section (15) in a direction of the drive flywheel (32).
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: August 12, 2008
    Assignee: Hilti Aktiengesellschaft
    Inventors: Iwan Wolf, Ulrich Schiestl
  • Publication number: 20080173689
    Abstract: A hand-held drive-in tool for driving in fastening elements includes a drive-in ram (13) displaceably supported in a drive (30) for driving the drive-in ram (13) and having a driving spring member (31) for displacing the drive-in ram (13), a device (70) for preloading the driving spring member (31), a locking device (50) having a locking position (54) in which the locking device (50) retains the driving spring member (31) in its preloaded position and a release position (55) into which the locking device (50) is displaced upon actuation of an actuation switch (19) of the drive-in tool (10), and a mechanical blocking device (60) operating independently of the actuation switch (19) and having an active position (68) in which the blocking device (60) retains the locking device (50) in its locking position (54), and a passive position (69) in which the locking device (50) can be displaced in its release position. (55).
    Type: Application
    Filed: December 20, 2007
    Publication date: July 24, 2008
    Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
  • Publication number: 20080173688
    Abstract: A hand-held drive-in tool for driving fastening elements in includes a drive-in ram (13) displaceably supported in the guide (12), a spring member (31) for displacing the drive-in ram (13), a device (70) for preloading the driving spring member (31) and a locking device (50) having a locking position (54) in which the locking device (50) retains the driving spring member (31) in its preloaded position (22) and includes an annular member (49) pivotally arranged on the locking device (50) and rollable off the locking stop (53) provided on the drive-in ram (13).
    Type: Application
    Filed: January 9, 2008
    Publication date: July 24, 2008
    Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
  • Publication number: 20080121678
    Abstract: A hand-held drive-in tool driving fastening elements (60), e.g., nails in a workpiece (U) includes a magazine (61) projecting sidewise from the muzzle part (15) and having a spring-biased transporting slide (63) for displacing the fastening elements (60) in the magazine guide channel (62), a safety device (25) including a press-on member (14) secured on the tool muzzle part (15) of the tool, and a device (40) actuatable by the press-on member (14) for positioning of the transporting slide (63) and for displacing the transporting slide (63) against a biasing force of the transporting spring.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 29, 2008
    Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
  • Publication number: 20080121404
    Abstract: A hand-held drive-in tool for driving fastening elements (60) in a workpiece (U) includes a drive-in ram (13) for driving the fastening elements (60) in the workpiece (U), at least one drive spring member (31) for driving the drive-in ram (13), a preloading device (70) for the drive-in ram (13) and the drive spring member (31), a locking device (50) which retains the drive-in ram (13) and the drive spring member (31) in a preloaded position (33) when the locking device is located in its locking position (54), an actuation switch (19), for initiating the drive-in process for displacing the locking device (50), and into a release position (55) thereof, and at least one further switch for displacing the locking device (50) in the release position thereof (55) independent from actuation of the actuation switch (19).
    Type: Application
    Filed: November 20, 2007
    Publication date: May 29, 2008
    Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
  • Publication number: 20080087705
    Abstract: A drive-in tool for driving in fastening elements includes a driving ram (13) displaceable in a guide (12) and driven by a drive flywheel (32), a drive unit (30) having an electric motor (31) for rotating the drive flywheel (32), a drive coupling (35) for connecting a coupling section (15) of the driving ram (13) with the at least one drive flywheel (32), and an acceleration device (40) for accelerating the driving ram (13), together with the coupling section (15) in a direction of the drive flywheel (32).
    Type: Application
    Filed: December 7, 2007
    Publication date: April 17, 2008
    Applicant: HILTI AKTIENGESELLSCHAFT
    Inventors: Iwan Wolf, Ulrich Schiestl
  • Patent number: 7334703
    Abstract: A pressure container filled with a propellant (22) includes an outer container (10), an inner bag (20) arrangeable in the outer container, and a cover (15) for closing the outer container (10) and provided with an inlet/outlet valve element (16), with the propellant (22) being formed in the propellant chamber (21) of the inner bag (20) by a mixture of an inert gas (23) in the propellant chamber (21) with a gaseous phase (18) of a filling material (12) in the filling material chamber (11) of the outer container (10); and the method of forming the pressure container includes inserting an inner bag (20) filled with an inert gas (23) into the outer container (10), closing the outer container (10) with a cover (15), and filling the filling material chamber (11) of the outer container (10) with a filling material (12) having a gaseous phase (18) that migrates from the filling material chamber (11) into the propellant chamber (21) of the inner bag (20), and forms therein, together with the inert gas (23), the propel
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: February 26, 2008
    Assignee: Hilti Aktiengsellschaft
    Inventor: Ulrich Schiestl
  • Patent number: 7325712
    Abstract: An electrical drive-in tool includes a driving ram (13) displaceable in a guide (12), and a motor-driven drive flywheel (32) for driving the driving ram (13) and having a first component forming at least a circumferentially arranged rim and formed of a metal selected from a group consisting of steel and alloyed iron, and a second component formed of a material having a density greater than a density of the metal the first component is formed of.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: February 5, 2008
    Assignee: Hilti Aktiengesellschaft
    Inventor: Ulrich Schiestl
  • Patent number: 7325711
    Abstract: A drive-in tool drives in fastening elements and includes a driving ram and a drive unit. The driving ram is displaceably supported in a guide. The drive unit has a drive flywheel and a return device. The drive flywheel is set in rotation by an electric motor, and the return device displaces the driving ram from an initial position after the completion of the drive-in process. The return device has a return motor separate from the electric motor, and the return motor is connected to the driving ram by a return mechanism.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: February 5, 2008
    Assignee: Hilti Aktiengeseleschaft
    Inventors: Ulrich Schiestl, Peter Stauss
  • Publication number: 20070290020
    Abstract: The present invention is directed to a combustion-operated setting device (10) with a combustion chamber (12) for a combustible propellant, an ignition device (16) for generating an ignition spark in the combustion chamber (12), a metering device (13) for metering the propellant, and control electronics (30) for the ignition device (16) and the metering device (13). In order to improve the control electronics (30), the control electronics (30) have at least two logically separated circuits. A first circuit (33) controls the metering device (13) and a second circuit controls the ignition device (16).
    Type: Application
    Filed: May 29, 2007
    Publication date: December 20, 2007
    Inventors: Iwan Wolf, Ulrich Schiestl
  • Patent number: 7284510
    Abstract: A combustion-engined setting tool for driving fastening elements in constructional components includes a member (32) arranged in the combustion chamber (13) for generating turbulence of an oxidant-fuel mixture filling the combustion chamber (13), an ignition unit (23) for igniting the oxidant-fuel mixture, a drive for at least temporarily driving the turbulence generating member (32), and a switch (22) for actuating the ignition unit (23) and actuated by the turbulence generating member (32).
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: October 23, 2007
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ulrich Schiestl, Hans Gschwend, Iwan Wolf
  • Publication number: 20070228101
    Abstract: A hand-held drive-in power tool for driving-in fastening elements includes a drive-in ram (13) displaceably arranged in a guide (12), a drive (30) for driving the drive-in ram (13) and having at least one driving spring member (31) for displacing the drive-in ram (13) and formed of a fiber-reinforced plastic material, and a device (70) for preloading the driving spring member (31).
    Type: Application
    Filed: March 27, 2007
    Publication date: October 4, 2007
    Inventors: Ulrich Schiestl, Walter Odoni, Tilo Dittrich
  • Patent number: 7246576
    Abstract: A combustion-engined setting tool for driving fastening elements such as, e.g., nails, blots, etc. in constructional components includes a combustion chamber (13) for combusting therein an oxidant-fuel mixture, a turbulence generating element, arranged in the combustion chamber (13) for creating turbulence of the oxidant-fuel mixture, and a drive for at least partially driving the turbulence generating element (32) and including a mechanical device (30) for a pulsed acceleration of the turbulence generating element (32) and which is activated by the actuation switch (35) that actuates the setting process.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: July 24, 2007
    Assignee: Hilti Aktiengsellschaft
    Inventors: Ulrich Schiestl, Iwan Wolf, Mario Zahner, Hans Gschwend, Stefan Petkov, Peter Hertlein, Ulrich Rosenbaum
  • Patent number: 7246725
    Abstract: The present invention relates to a pressurized package and a method for manufacturing and filling a pressurized package. The pressurized package has an outer container (10) and an inner container (20) situated within the outer container (10). In the outer container (10) a chamber (11) for material (12) to be dispensed is arranged and in the inner container (20) a propellant chamber (21) for propellant (20) is arranged, which are separated from each other in a manner that is impermeable to liquid and gas. The outer container (10) is closed by a cover part (15) on which a valve part (16) is arranged for dispensing the material (12) from the chamber (11) outwards. To improve pressurized packages of this type, a pressurized cartridge (30) containing a propellant (22) is arranged in the inner container (20), and the pressurized cartridge is associated with an opening mechanism (31) for at least one-time opening of the pressurized cartridge (30) to the propellant chamber (21) of the inner container (20).
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: July 24, 2007
    Assignee: Hilti Aktiengesellschaft
    Inventors: Ulrich Schiestl, Ulrich Rosenbaum, Hans Gschwend, Iwan Wolf
  • Publication number: 20070138230
    Abstract: A combustion-engined setting tool for driving fastening elements in a constructional component includes at least one combustion chamber (11) for receiving an oxidant-fuel gas mixture, a piston guide (17) located adjacent to the combustion chamber (11), and in which a drive piston (15) for driving the fastening elements in is displaceable by combustion gases, a ventilator for creating turbulence in the combustion chamber (11), and a compression device (30) for compressing gases fed into the combustion chamber (11) and driven by the ventilator drive (21).
    Type: Application
    Filed: December 8, 2006
    Publication date: June 21, 2007
    Inventors: Hans Gschwend, Ulrich Schiestl, Nikolaus Hannoschoeck
  • Publication number: 20070108250
    Abstract: A hand-held power drive-in tool, includes a drive-in channel (12) having a receptacle (18) for receiving fastening elements (41) and an electrically driven fastening element feeding device (10) having a transporting device (30) for transporting the fastening elements (41) stored in a magazine into the receptacle (18).
    Type: Application
    Filed: November 14, 2006
    Publication date: May 17, 2007
    Inventors: Walter Odoni, Ulrich Schiestl, Hans Gschwend
  • Publication number: 20070074684
    Abstract: A combustion-engined setting tool for driving fastening elements such as, e.g., nails, bolts, pins in a constructional component includes a combustion chamber (13) for combusting an oxidant-fuel mixture, elements for closing the inlet opening (15) and the outlet opening (19) provided in the combustion chamber, ventilator (41) for generating a gas flow from the inlet opening through the combustion chamber and toward the outlet opening (19), and a combustion-energy driven drive unit (42) for driving the ventilator.
    Type: Application
    Filed: October 4, 2006
    Publication date: April 5, 2007
    Inventors: Walter Odoni, Ulrich Schiestl