Assignee: Hilti Aktiengesellschaft

Location: Not specified.
No. of patents: 77

Number	Title	Issue Date
5667328	Attachment member An attachment member is formed of a connecting part (31) and a deformed plate part (31a) in the form of a pipe clamp for securing pipe lines to a structural component. The pipe clamp has a throughbore (33) surrounded by an annular collar (37). A contact s...	09/16/1997
5097184	Battery operated device A battery operated device includes a circuit connecting a DC motor (22) and a battery (9) made up of a plurality of cells (10, 11, 12) connected in series with a two-pole switch device (23) including a first switch (24) and a second switch (25). The DC mo...	03/17/1992
5069336	Container having components in sealable blind bores for anchoring fastening element A container for a hardenable multicomponent mass, used in anchoring a fastening member in a bore hole, has blind holes forming chambers. The chambers extend axially and are parallel to one another. The blind holes are arranged to receive individual compon...	12/03/1991
5054983	Attachment member with a collapsible section for securing insulation panels A member (1) for securing insulation panels (7) to a structural component (8) is formed of an annular head (2) and an axially extending hollow shaft (3) extending from the head. The hollow shaft (3) is arranged to receive a nail (9) for fixing the member ...	10/08/1991
5044851	Fastening element assembly and method of setting fastening elements A fastening element is set in a receiving material, such as concrete, stone and the like, by driving it through the base of a blind borehole previously formed in the receiving material. When the fastening element is driven initially, it moves through a sl...	09/03/1991
5033192	Hand-held tool with cutting or grinding disk In a hand-held tool, a drive shaft (11) mounts a cutting or grinding disk (4) with a protective hood (5) partially enclosing the disk. The hood has an opening through which a portion of the disk projects. The hood (5) encloses a space divided by a guide w...	07/23/1991
5031325	Hand-held tool with a cutting or grinding disk A hand-held tool for driving a cutting or grinding disk includes a housing and a protection hood with a sleeve-shaped extension detachable connected to the housing. A receptacle is mounted on the housing for releaseably holding the sleeve-shaped extension...	07/16/1991
5027568	Method of consolidating cracks in a structure A method of injecting a hardenable mass into cracks in a structure includes drilling a borehole into the structure traversing the cracks. Inserting a tubular member into the borehole with the tubular member having an outside diameter smaller than the diam...	07/02/1991
5020613	Device for cutting undercuts A device, for cutting an undercut in a borehole at a location spaced from the surface of a material into which the borehole is formed, includes a housing (1) with a bore therethrough and a guide sleeve (2) rotatably supported in the housing bore and havin...	06/04/1991
5009440	Tool chuck for tool bits A tool chuck for holding axially extending the shank end of a tool bit includes a guide tube with an adapter sleeve encircling and being rotatable relative to the guide tube for securing holding segments in engagement with the tool bit. The holding segmen...	04/23/1991
4998588	Hand tool with a shifting gear unit A hand tool has a shifting gear unit containing an output drive shaft. The drive shaft can be coupled with different gears by a connecting device so that a coupled gear drives the shaft. The connecting device is displaced by a slide and the slide is, in t...	03/12/1991
4984945	Expansion dowel assembly An expansion dowel assembly is made up of an anchor bolt and an expansion sleeve laterally enclosing the bolt. The sleeve is expanded by driving it in the axial direction relative to the bolt so that the end of the sleeve widens as it moves axially over a...	01/15/1991
4983083	Anchor rod An anchor rod has an axially extending anchoring region including an axially extending expansion section widening in the direction the rod is inserted into a borehole in a structural component. The anchor rod is held in the borehole by a hardenable mortar...	01/08/1991
4978258	Cutting tool A cutting tool for forming undercuts in boreholes includes a cutting member pivotally and rotatably supported in a tubular drive shaft. The combination of the drive shaft and cutting tool provide a ball joint so that the cutting tool is pivotally supporte...	12/18/1990
4968185	Metal mesh sleeve for dowel assembly A dowel assembly for use as an anchor in a structural material, such as a light and hollow structural material, includes an axially extending sleeve formed of expanded metal for receiving a hardenable mass and an anchor member. The sleeve is closed at its...	11/06/1990
4968200	Expansion anchor assembly An expansion anchor assembly is made up of an expansion sleeve and an anchor rod. At one end, the expansion sleeve has a plurality of separate expansion parts radially deflectable about bending locations, by drawing an expansion cone on one end of the anc...	11/06/1990
4915561	Fastening element assembly with a deformable sleeve A fastening element assembly is made up of a nail-like fastening element and a deformable sleeve displaceably secured on the fastening element shank. The assembly is used to secure sheet metal plates to a base material of variable strength. At its leading...	04/10/1990
4907917	Method of securing anchor rods A method of securing an anchor rod in a borehole at an underwater location without the use of expanding force includes a first step of partially filling the borehole with a flowable hardenable bonding mass. Next, a cartridge containing a hardenable bondin...	03/13/1990
4883211	Explosive powder charge operated fastening element setting device An explosive powder charge operated fastening element setting device includes a housing supporting a handle. A damping unit is arranged between the handle and the housing so that the handle is displaceable in the setting direction of the setting device ag...	11/28/1989
4858759	Container arrangement for cartridge dispensing two-component mass A cartridge for dispensing a two-component mass is formed by two interconnected containers to that different combinations of the components are provided along with different mixture ratios. Initially, the containers are separate with partitions located in...	08/22/1989
4840524	Anchor member with electrical insulation jacket An anchor member is formed of an axially extending core member enclosed from one end toward the other by an electrically non-conductive plastics material jacket. The anchor member can be secured in a borehole in a receiving material by a hardenable mass. ...	06/20/1989
4836729	Anchoring unit for use in structures with internal open spaces An anchoring unit is made up of a screen-type sleeve and an insert sleeve to be placed into the screen-type sleeve. The unit is anchored by a hardenable mass. After the screen-type sleeve is inserted into a borehole in a structure with internal open space...	06/06/1989
4823054	Circuit for phase section control of an AC-DC motor A circuit for phase control of an AC-DC motor for a machine operated in defined (preferably two) load conditions with a controllable current flow control valve located in series with the motor and associated triggering pulse stage. The circuit includes a ...	04/18/1989
4820962	Arrangement for automatic working data set-up for driving implements Single or multi-track data markings are provided on the shank of a tool bit between a torque transmission region at one end and a working region proper for automatic working data set-up of a driving implement for exchangeable tool bits. The data markings ...	04/11/1989
4811883	Fastening element setting device with setting indicator An explosive powder charge operated fastening element assembly setting device is used to drive a fastening element into a hard receiving material such as concrete, steel and the like. The device includes a striker piston transmitting driving force to the ...	03/14/1989
4807587	Process of forming openings In a process using a hand-held drilling device for forming openings in a construction material containing steel reinforcing members, during the drilling step the electrical resistance between the drill bit and the reinforcing members is continuously measu...	02/28/1989
4806053	Expansion dowel with two different expansion members An expansion dowel assembly includes an axially elongated anchor bolt and a pair of serially arranged expansion elements or shells into which the anchor bolt is drawn. The anchor bolt has axially extending conically shaped expansion members spaced apart i...	02/21/1989
4798249	Lockable striking mechanism for hammer drill In a hammer drill, a striking mechanism supplied percussive force to a tool. The striking mechanism includes a free piston slidably displaceable in a reciprocating manner within a guide cylinder. Balls mounted in the guide cylinder are spring biased into ...	01/17/1989
4775269	Hand held tool with removable chuck In a hand-held tool, such as a power drill, a hammer drill, a powered screwdriver or the like, a chuck is secured on one end of an axially extending rotary spindle by ball-shaped locking members. The chuck has a driver socket which fits on one end of the ...	10/04/1988
4775160	Clamping chuck for drill bits and chisel bits A clamping chuck for securing a drill bit, chisel bit or the like in a drilling tool includes a guide sleeve into which the bit is inserted. Clamping jaws are radially displaceably mounted in the guide sleeve with a setting sleeve encircling the jaws. By ...	10/04/1988
4775159	Chuck for a drilling tool A chuck for receiving and holding the shank of a drilling tool includes a chuck member with a central bore. An anvil for transmitting axially directed percussive force extends into a rear end of the central bore. Clamping jaws are movable in guide channel...	10/04/1988
4767025	Hand tool for mixing and dispensing two-component masses In a hand tool for the mixing and metered dispensing of a two-component mass, a container holding a solid component mass is mounted in a handgun-like shaped support member. A mixing chamber is aligned with and mounted on one end of the container for mixin...	08/30/1988
4763733	Hammer drill with rotational lock A hammer drill can be switched between combined rotary and impact operation and impact operation. An electropneumatic mechanism provides the impact force and includes a guide cylinder with a beveled gear wheel extending around the outside surface of the c...	08/16/1988
4752168	Expansion dowel assembly An expansion dowel assembly includes an axially elongated dowel member with a flange at one end and arms extending from the flange to a junction member at the other end. By applying a force at the junction member and pulling it toward the flange, the arms...	06/21/1988
4747727	Anchor rod assembly secured by hardenable mass An anchor rod assembly includes an axially elongated anchor rod to be secured in a borehole by a hardenable mass inserted into the borehole around the anchor rod. The anchor rod is divided by slots into a plurality of circumferentially spaced axially exte...	05/31/1988
4745831	Setting tool for screwing-in threaded rods A setting tool for screwing a threaded rod into a receiving material includes a work driver formed by a sleeve-like member. A retainer part is secured within one end of the sleeve-like member for holding the threaded rod while it is inserted. The end of t...	05/24/1988
4741467	Explosive powder charge operated fastening member driving tool An explosive powder charge operated fastening member driving tool has a muzzle part which can be locked within and released and removed from the tool housing by rotational movement and axial movement relative to the housing. When the tool is not ready to ...	05/03/1988
4732218	Hammer drill with separate and interconnectable drive means A hammer drill includes a unit for supplying impact force to a tool inserted into the hammer drill and a unit for supplying rotational forces to the tool. A first drive motor drives the impact force unit and a second drive motor drives the rotational forc...	03/22/1988
4730966	Expansion bolt assembly An expansion bolt assembly includes an anchor bolt with a conically shaped expansion head at one end arranged to be drawn into an expansion sleeve. At the opposite end, the anchor bolt forms a plurality of axially extending projections protruding radially...	03/15/1988
4723389	Method of placing anchor members using a dowel compound In securing an anchor in a borehole in a receiving material, a settable hydraulic dowel compound is introduced into the borehole either before, during or after the placement of the anchor member. The dowel compound includes an expandable component. The di...	02/09/1988

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Assignee: Hilti Aktiengesellschaft