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Krenzer, DE
Steffen Krenzer, Bochum DE
| Patent application number | Description | Published |
|---|---|---|
| 20090165617 | Decoking Tool - In a tool for cutting up coke in containers, including a housing mounted on a drill stem in the operating condition, and wherein at least one cutting nozzle for cutting and a boring nozzle for boring coke by means of a water jet, and a switching apparatus for controlling the feeding of pressurized water flowing through the drill stem and the housing are arranged, wherein the switching apparatus for switching the tool includes a linearly moveable switching element, a driving apparatus and a control apparatus, which is rotatable about the longitudinal axis of the housing as a function of a change of the water pressure by the driving apparatus to switch a valve to distribute the water and to pass it on, wherein depending on each angular position of the control apparatus the flow path of the water to the boring nozzle or the flow path to the cutting nozzle is free or obstructed, the switching apparatus is arranged in the housing of the tool above the area in which a separation of the supply path of the water is provided in the housing into flow channels for the water to be fed to the boring nozzle and the cutting nozzle, and the switching apparatus, for rotating the control apparatus by the desired angle, includes a switching element arranged in the water flow path and moveable transverse to the longitudinal axis of the housing, wherein the switching element is coupled with a member for converting the linear movement of the switching element into a rotational movement of the control apparatus. | 07-02-2009 |
| 20110011648 | TOOL FOR CUTTING COKE AND OTHER HARD MATERIALS IN DRUMS - A tool used for cutting coke or other hard materials in drums, adapted for being mounted to a boring rod with which the water can be run under pressure into the tool thus that, the water can be run toward the boring and cutting nozzles, being provided with a valve mechanism that can rotate about a coupling angle for releasing and closing the flow channel ports depending on a control input, with a first coupling position of the valve mechanism for boring and another coupling position for cutting, whereby the valve mechanism can be coupled at a water pressure reduced to the coupling pressure by rotating about the coupling angle, is simplified as to construction and handling in that the valve mechanism comprises a valve body in the water intake area of the casing, which has a cylindrical shape and a section for the water flowing inside the casing, as well as being rotationally mounted and having the possibility to be lifted and lowered in a cylindrical section of the inner wall of the casing, the valve body being displaceable at working pressure to a lower position against a spring tension—depending on the preset control for the individual desired function of the tool—and on occurring the coupling pressure, under spring tension, to an upper position relative to a rotating motion of the valve body about the coupling angle. | 01-20-2011 |
Ullrich Krenzer, Zirndorf DE
| Patent application number | Description | Published |
|---|---|---|
| 20100092259 | DRILL BIT FOR DRILLING HAVING AT LEAST TWO CUTTING EDGES, EACH WITH TWO CUTTING PORTIONS AND A NON-CUTTING PORTION BETWEEN THE TWO CUTTING PORTIONS - A drill bit for drilling having at least two cutting edges, each with two cutting portions and a non-cutting portion between the two cutting portions. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. | 04-15-2010 |
Ulrich Krenzer, Zirndorf DE
| Patent application number | Description | Published |
|---|---|---|
| 20080213051 | BORING TOOL AND A CUTTING INSERT THEREFOR - Boring tool and a cutting insert therefor. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. | 09-04-2008 |
| 20110103909 | DRILL - A drill having end-face major surfaces, contiguous faces descending from the major cutting edges and flanks contiguous to the major cutting edges. Center cutting edges are formed by end-face taperings. A chisel cutting edge is between the center cutting edges. Shapes of the cutting edges are disclosed. First ones of the flanks are angled to create an outward apex angle so that the major cutting edges and the center cutting edges run at a constant taper angle. | 05-05-2011 |
| 20110103910 | DRILL BIT - A drill bit, has | 05-05-2011 |
Ulrich F. Krenzer, Zirndorf DE
| Patent application number | Description | Published |
|---|---|---|
| 20080199268 | DRILLING TOOL - A drilling tool. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. | 08-21-2008 |