Hilti Aktiengesellschaft

Michael Ziltener

Sasha Lukic

Roland Schneider

Arjen Detmer Dijkhuis

Karl Haeussler

Matteo Spampatti

Cristian Jimenez

Achim Hassler

Jann Schraner

Emina Hodzic

Markus Gutensohn

Marius Sprenger

Jerome Darbre

A device for nailing cast in place anchors includes a housing, which has an anchor receptacle for receiving a cast in place anchor, a nail gun abutment for abutting against a nail gun, and a ram, which extends into the housing towards the anchor receptacle and which is axially displaceable with respect to the housing. The ram has a striking surface facing the anchor receptacle for striking the cast in place anchor disposed in the anchor receptacle. The ram further has a striker abutment for abutting against a striker of the nail gun that is positioned at the nail gun abutment.

Device for nailing cast in place anchors

Threaded rod connector including a housing having a cavity for receiving a threaded rod therein, wherein the cavity has a mouth, and an insert including a plurality of rod engagement segments, which are arranged within the cavity, wherein the cavity has a tapered zone tapering towards the mouth for wedging the rod engagement segments against the threaded rod, wherein the insert further includes a plurality of segment carrying arms, wherein each of the segment carrying arms carries at least one of the rod engagement segments, wherein the segment carrying arms form a cage for accommodating the threaded rod. The insert further includes a collar, which is connected to the segment carrying arms, and which interconnects the segment carrying arms, and the cavity has a collar locking zone, in which the collar is arranged, wherein the housing rotationally locks the collar arranged in the collar locking zone to the housing.

Threaded rod connector with rotationally locked collar

Threaded rod connector including a housing having a cavity for receiving a threaded rod therein, wherein the cavity has a mouth, and an insert including a plurality of rod engagement segments, which are arranged within the cavity, wherein the cavity has a tapered zone tapering towards the mouth for wedging the rod engagement segments against the threaded rod, wherein the insert further includes a plurality of interconnected segment carrying arms, wherein each of the rod engagement segments is connected to at least one of the segment carrying arms, wherein the segment carrying arms form a cage for accommodating the threaded rod. The insert further includes a collar, wherein the segment carrying arms are interconnected via the collar, and wherein the collar surrounds a rod accommodation hole that is aligned with the cage, such that a straight threaded rod can be simultaneously positioned both within the rod accommodation hole and within the cage.

Connector insert with rod accommodation hole

Threaded rod connector including a housing having a cavity for receiving a threaded rod therein, wherein the cavity has a mouth, and an insert including a plurality of rod engagement segments, which are arranged within the cavity, wherein the cavity has a tapered zone tapering towards the mouth for wedging the rod engagement segments against the threaded rod, wherein the insert further includes a plurality of segment carrying arms, each having a segment connection end and an interconnection end, which is located opposite the segment connection end on the respective segment carrying arm, wherein each of the rod engagement segments is connected to at least one of the segment carrying arms at the segment connection end thereof, and wherein the segment carrying arms are interconnected at their interconnection ends. Each of the segment carrying arms extends, originating from its segment connection end, towards the mouth of the cavity.

Threaded rod connector with mouthwardly projecting arms

A method for temporarily releasing a screw anchorage includes unscrewing and removing a primary screw having a thread that is tappingly engaged in a mating thread in an ungrouted hole in a mineral substrate from the ungrouted hole. Subsequently to the unscrewing and removing, a retrofitting screw is screwed into the hole to form an annular gap between the retrofitting screw and the mineral substrate. A hardenable grout is placed in the annular gap and the hardenable grout is hardened in the annular gap.

Method for temporarily releasing screw anchorage

A disassembly method for an anchor that is anchored in a hole and that has an anchor bolt is provided, whereby, during the disassembly procedure, a torque is applied to the bolt of the anchor that is anchored in the hole and, in this process, the anchor bolt is stressed until it breaks. An anchor which has a head and whose bolt has an engaging profile so that a torque can be applied to the anchor bolt is also provided.

Growing community of inventors

Siebnen, Switzerland

Michael Ziltener