Other

Konrad Friedrichs Kg

Gottlieb Guhring Kg

Guehring Ohg

Arno Friedrichs Hartmetall Gmbh & Co. Kg

Friedrichs, Arno

Arno Friedrichs

Bert Apitzsch

A method produces a dental drill that has a shank and a work section. The shank contains a centrally arranged, continuous first channel. The work section contains one or more continuous, spiral-shaped further channels. The first channel and the further channels open into a common chamber connecting the shank and the work section. The shank is sintered with the work section in order to form a one-piece, sintered component that encloses the chamber connecting the shank and the work section.

Dental drill and method for producing same

The invention relates to a method for producing a dental drill that has a shank () and a work section. The shank contains a centrally arranged, continuous first channel (). The work section contains one or more continuous, spiral-shaped further channels (). The first channel and the further channels open into a common chamber () connecting the shank and the work section. The shank is sintered with the work section in order to form a one-piece, sintered component that encloses the chamber connecting the shank and the work section.

The invention relates to a method for producing a fuel injection element having channels, as well as to a fuel injection element. A fuel injection element according to the invention has helically extending channels and is produced with use of an extrusion tool.

Method for producing a fuel injection element having channels, and a fuel injection element

A circular saw blade includes a supporting body, cooling channels provided in the inner region of the supporting body and running in the radial direction, and teeth provided in the region of the outer periphery of the supporting body. The cooling channels emerge from the circular saw blade in the region of the tooth bases or in the region of the flanks of the teeth. Furthermore, the circular saw blade has pockets which, starting from a tooth base or a flank of a tooth, extend inwardly into the region of the supporting body.

Hydrodynamically guided circular saw blade

The invention relates to a method of processing metal powder consisting a plurality of metal powder pellets, comprising the following steps:

Method of processing metal powder

A method is for producing a circular cylindrical body () comprising a workable mass, having at least one helical internal cavity extending in the interior of the body. The body () is initially produced with a straight internal recess, for example by means of extrusion. Afterwards the body is cut to a defined length. The body () that has been cut to length is then subjected to a rolling process by means of a friction surface arrangement () while being supported over the entire length thereof on a support means (). The rolling process takes place in multiple steps, wherein a rolling movement using a first axis of rotation () is performed in a first step, and a rolling movement using a second axis of rotation () that is different from the first axis of rotation is used in a second step. There is also an apparatus for performing the method.

Device for producing a circularly cylindrical body

The invention relates to a method for producing a circular cylindrical body () comprising a workable mass, having at least one helical internal cavity extending in the interior of the body. The body () is initially produced with a straight internal recess, for example by means of extrusion. Afterwards the body is cut to a defined length. The body () that has been cut to length is then subjected to a rolling process by means of a friction surface arrangement () while being supported over the entire length thereof on a support means (). The rolling process takes place in multiple steps, wherein a rolling movement using a first axis of rotation () is performed in a first step, and a rolling movement using a second axis of rotation () that is different from the first axis of rotation is used in a second step. The invention also relates to an apparatus for performing the method.

Method and device for producing a circularly cylindrical body, which consists of deformable material, with internally disposed helical recesses

A tool bit () ready for use consists of a sintered material. It has a longitudinal axis (). At least one swarf chamber () spaced from the longitudinal axis () land extending along the longitudinal axis () is formed in the tool bit (). The tool bit () has at least one cutting edge (), which is formed in the tool bit () by grinding the already sintered tool bit (), adjoining the swarf chamber (). According to the invention the swarf chamber () is ground only partly and is otherwise unground.

Only partly ground tool rod made of sintered material

The invention relates to a reclining means which has a mattress with a multiplicity of air chambers arranged in lattice form. Also provided is a mattress-profile memory which stores, for each of the air chambers, valve-control data corresponding to a mattress profile. The reclining means also has a data-carrier holder, into which a data carrier can be inserted, and means for writing valve-control data into a data carrier inserted into the data-carrier holder, as well as means for reading valve-control data which are stored on a data carrier inserted into the data-carrier holder.

Reclining means

The invention relates to a remotely controllable vibrator, which comprises a receiver interface, a microcontroller connected with the receiver interface and a resonator device controlled by the microcontroller. The receiver interface is a Bluetooth interface which is provided for a bidirectional wire-free signal transmission between the vibrator and an external Bluetooth apparatus. The vibrator is remotely controllable and remotely programmable by way of its Bluetooth interface. In addition, the invention relates to a device for remote control of a vibrator, comprising a vibrator, which is provided with a Bluetooth interface, and a second Bluetooth apparatus, wherein the second Bluetooth apparatus is provided for generating remote control signals and/or remote programming signals for the vibrator.

Remote-control vibrator

The invention relates to a bed comprising a mattress with a plurality of air chambers arranged in a grid, each chamber being equipped with at least one air connection. The bed is also equipped with a plurality of controllable valves, each valve being assigned to one of the air chambers and several sensors. A control unit is connected to the sensors and controls the valves individually in accordance with the output signals of the sensors. In addition, the inventive bed comprises an air source that is connected to the valves.

Lying-down means

The invention relates to a rod-shaped tool made of sintered material that is used to machine a workpiece. Said tool comprises a rod center axis (), a shaft area () and a chip space area () adjacent thereto in the direction of the rod center axis (). The tool has at least one outside chip space (), which encircles the rod center axis (), in the chip space area () but not in the shaft area (). The chip space () is situated at a minimum distance (a) from the rod center axis (). A central recess () extends in the direction of the rod center axis () over the shaft area () whereby leading up and into the chip space area (). The central recess has, in the chip space area (), a non-circular cross-section and is situated at a maximum distance (A) from the rod center axis (), said maximum distance being at least as large as the minimum distance (a)

Rod-shaped tool for machining a workpiece

The method has a first material of lesser hardness acting as a rod-shaped carrier for a second material of greater hardness, each materials formed within a respective extrusion press tool and the plastic mass flow of the greater hardness material fed to the extrusion press tool for the lesser hardness material for providing a common plastic mass flow in the form of a rod-shaped body with a core and an outer region. An Independent claim for a device for manufacture of a hard metal workpiece is also included.

Method and device for producing a hard metal tool

The invention relates to an extruder tool for producing a cylindrical body which consists of plastic mass and has at least one recess extending in the interior thereof. The extruder tool comprises an extruder nozzle which has a narrowing region and a nozzle mouthpiece. The nozzle mouthpiece forms a cylindrical channel. In addition, a carrier device is provided, at which a number, which corresponds with the number of internal recesses, of threads is fastened or which has a number, which corresponds with the number of internal recesses, of channels for threadlike pressing of a volatile filler material into the mass flow. The carrier device consists of a number, which corresponds with the number of internal recesses, of carrier elements preferably of pin-like construction. Each of the carrier elements is fastened to the extruder nozzle in the region of the nozzle mouthpiece or in the tapering region and is preferably adjustable in radial direction.

Extrusion press tool for producing a cylindrical body consisting of a plastic mass

A method of producing a substantially regular cylindrical body that consists of a deformable material, especially a sintered metal blank. The blank is provided with an interior helical recess. The blank is first produced with a substantially linear course of the interior recess, for example by extrusion. The body is cut to a defined length and is subjected to a rolling movement by a friction surface while being supported across its entire length on a support. The speed of the rolling movement changes in a linear and continuous manner across the length of the body, thereby regularly twisting the body.

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Kulmbach, Germany

Arno Friedrichs