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).
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Patent number: 7424870Abstract: 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: GrantFiled: October 4, 2006Date of Patent: September 16, 2008Assignee: Hilti AktiengesellschaftInventors: Walter Odoni, Ulrich Schiestl
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Publication number: 20080210736Abstract: 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 eType: ApplicationFiled: December 10, 2007Publication date: September 4, 2008Inventors: Matthias Blessing, Hans Gschwend, Ulrich Schiestl, Robert Spasov
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Patent number: 7413104Abstract: 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: GrantFiled: May 5, 2005Date of Patent: August 19, 2008Assignee: Hilti AktiengesellschaftInventor: Ulrich Schiestl
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Patent number: 7410085Abstract: 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: GrantFiled: May 2, 2006Date of Patent: August 12, 2008Assignee: Hilti AktiengesellschaftInventors: Iwan Wolf, Ulrich Schiestl
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Publication number: 20080173689Abstract: 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: ApplicationFiled: December 20, 2007Publication date: July 24, 2008Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
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Publication number: 20080173688Abstract: 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: ApplicationFiled: January 9, 2008Publication date: July 24, 2008Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
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Publication number: 20080121678Abstract: 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: ApplicationFiled: November 20, 2007Publication date: May 29, 2008Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
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Publication number: 20080121404Abstract: 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: ApplicationFiled: November 20, 2007Publication date: May 29, 2008Inventors: Robert Spasov, Matthias Blessing, Hans Gschwend, Ulrich Schiestl
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Publication number: 20080087705Abstract: 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: ApplicationFiled: December 7, 2007Publication date: April 17, 2008Applicant: HILTI AKTIENGESELLSCHAFTInventors: Iwan Wolf, Ulrich Schiestl
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Patent number: 7334703Abstract: 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 propelType: GrantFiled: May 17, 2004Date of Patent: February 26, 2008Assignee: Hilti AktiengsellschaftInventor: Ulrich Schiestl
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Patent number: 7325712Abstract: 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: GrantFiled: March 2, 2006Date of Patent: February 5, 2008Assignee: Hilti AktiengesellschaftInventor: Ulrich Schiestl
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Patent number: 7325711Abstract: 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: GrantFiled: April 11, 2006Date of Patent: February 5, 2008Assignee: Hilti AktiengeseleschaftInventors: Ulrich Schiestl, Peter Stauss
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Publication number: 20070290020Abstract: 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: ApplicationFiled: May 29, 2007Publication date: December 20, 2007Inventors: Iwan Wolf, Ulrich Schiestl
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Patent number: 7284510Abstract: 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: GrantFiled: September 12, 2005Date of Patent: October 23, 2007Assignee: Hilti AktiengesellschaftInventors: Ulrich Schiestl, Hans Gschwend, Iwan Wolf
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Publication number: 20070228101Abstract: 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: ApplicationFiled: March 27, 2007Publication date: October 4, 2007Inventors: Ulrich Schiestl, Walter Odoni, Tilo Dittrich
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Patent number: 7246576Abstract: 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: GrantFiled: September 12, 2005Date of Patent: July 24, 2007Assignee: Hilti AktiengsellschaftInventors: Ulrich Schiestl, Iwan Wolf, Mario Zahner, Hans Gschwend, Stefan Petkov, Peter Hertlein, Ulrich Rosenbaum
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Patent number: 7246725Abstract: 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: GrantFiled: April 20, 2004Date of Patent: July 24, 2007Assignee: Hilti AktiengesellschaftInventors: Ulrich Schiestl, Ulrich Rosenbaum, Hans Gschwend, Iwan Wolf
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Publication number: 20070138230Abstract: 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: ApplicationFiled: December 8, 2006Publication date: June 21, 2007Inventors: Hans Gschwend, Ulrich Schiestl, Nikolaus Hannoschoeck
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Publication number: 20070108250Abstract: 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: ApplicationFiled: November 14, 2006Publication date: May 17, 2007Inventors: Walter Odoni, Ulrich Schiestl, Hans Gschwend
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Publication number: 20070074684Abstract: 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: ApplicationFiled: October 4, 2006Publication date: April 5, 2007Inventors: Walter Odoni, Ulrich Schiestl