Patents by Inventor Ralph Gretzschel
Ralph Gretzschel 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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Publication number: 20240131740Abstract: The present invention relates to a shaving device includes a housing with a skin contacting surface and at least one cutting blade mounted in the housing, wherein the cutting blade has an asymmetric cross-sectional shape with a first face, a second face opposed to the first face and a cutting edge at the intersection of the first face and the second face. An intersecting line connects the primary bevel of the first face and the secondary bevel of the second face such that a first wedge angle q1 and a second wedge angle q2 are formed. Further, the clearance angle ? between the skin contacting surface and the primary bevel of the first surface is ?11°, the effective cutting angle ? between the skin contacting surface and the bisecting line of the first wedge angle q1 is ?10° and q1>q2.Type: ApplicationFiled: October 14, 2022Publication date: April 25, 2024Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens, Matthias Gester
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Publication number: 20240042639Abstract: The present invention relates to a skin treatment sheet comprising a substrate with a plurality of apertures wherein the sheet has a first surface and an opposing second surface. The apertures have a first and second inner perimeter and a cutting edge along at least a portion of the first inner perimeter. The skin treatment sheet has a stability ST which is the ratio of the average cross-sectional substrate area Ax and the total aperture area A1. Moreover, the present invention also relates to a skin treatment device comprising this skin treatment sheet.Type: ApplicationFiled: October 17, 2023Publication date: February 8, 2024Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens, Matthias Gester, Robert Andrew Kearney, Hannah Bryony Roberts, Anthony William Shorey
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Publication number: 20240042635Abstract: The present invention relates to a cutting element having a substrate with at least one aperture which includes a cutting edge along at least a portion of an inner perimeter of the aperture. The cutting edges have an asymmetric cross-sectional shape with a first face, a second face opposed to the first face and a cutting edge at the intersection of the first face and the second face.Type: ApplicationFiled: October 17, 2023Publication date: February 8, 2024Inventors: Peter Bodo GLUCHE, Ralph GRETZSCHEL, Michael MERTENS, Matthias GESTER
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Publication number: 20240042636Abstract: The present invention relates to a cutting element having a substrate with at least one aperture which has a cutting edge along at least a portion of an inner perimeter of the aperture. The cutting edges have an asymmetric cross-sectional shape with a first face, a second face opposed to the first face and a cutting edge at the intersection of the first face and the second face. Moreover, the present invention relates to a hair removal device including such cutting elements.Type: ApplicationFiled: October 17, 2023Publication date: February 8, 2024Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens, Matthias Gester
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Publication number: 20240042637Abstract: The present invention relates to a cutting element having a substrate with at least one aperture which includes a cutting edge along at least a portion of an inner perimeter of the aperture. The cutting edges have an asymmetric cross-sectional shape with a first face, a second face opposed to the first face and a cutting edge at the intersection of the first face and the second face. Moreover, the present invention relates to a hair removal device including such cutting elements.Type: ApplicationFiled: October 17, 2023Publication date: February 8, 2024Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens, Matthias Gester
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Publication number: 20240042638Abstract: The present invention relates to a skin treatment sheet including a substrate with a plurality of apertures wherein the apertures have a first and second inner perimeter and a cutting edge along at least a portion of the first inner perimeter. The skin treatment sheet has a total cutting length which is the total length of all portions of the first perimeter in each aperture that contain a cutting edge and a total aperture area wherein the ratio of total aperture area to total cutting length is in a predefined range from 0.08 to 2.0 mm. Moreover, the present invention also relates to a skin treatment device including this skin treatment sheet.Type: ApplicationFiled: October 17, 2023Publication date: February 8, 2024Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens, Matthias Gester, Robert Andrew Kearney, Hannah Bryony Roberts, Anthony William Shorey
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Publication number: 20230066180Abstract: The present invention relates to a cutting blade having an asymmetric cross-sectional shape with a first face, a second face opposed to the first face and different from the first face as well as a cutting edge wherein the first face comprises a surface and the second face comprises a primary bevel, a secondary bevel and a tertiary bevel with a first wedge angle ?1 between the surface on the first face and the primary bevel, a second wedge angle ?2 between the surface on the first face and the secondary bevel and a third wedge angle ?3 between the surface on the first face and the tertiary bevel. Moreover, the present invention relates to a hair removal device comprising this cutting blade.Type: ApplicationFiled: October 14, 2022Publication date: March 2, 2023Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens
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Publication number: 20230051077Abstract: The present invention relates to a cutting blade having a blade body with a first material joined to a second material, a first face, a second face opposed to the first face, and a cutting edge, where the first face includes a first surface, and the second face includes a primary bevel having a convex or straight cross-sectional shape and a secondary bevel having a concave cross-sectional shape with a line connecting the two bevels, the primary bevel extending from the cutting edge to the line, where cutting edge and primary bevel are shaped in the second material. A first wedge angle ?1 between the first surface and the primary bevel or the tangent of the primary bevel through the cutting edge is greater than a second wedge angle ?2 between the first surface and the tangent of the secondary bevel. A hair removal device includes this cutting blade.Type: ApplicationFiled: October 14, 2022Publication date: February 16, 2023Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens
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Publication number: 20230037149Abstract: The present invention is directed to a shaving device including a housing with a skin contacting surface and at least one cutting blade mounted in the housing, wherein the at least one cutting blade has an asymmetric cross-sectional shape with a first face, a second face opposed to the first face as well as a cutting edge at the intersection of the first face and the second face. The blade is mounted in the housing such that the clearance angle ? between the skin contacting surface and the primary bevel of the first face or the secondary bevel of the second face is ?11°, the effective cutting angle ? between the skin contacting surface and the bisecting line of the first wedge angle ?1 between the first surface and the primary bevel is ?10° and ?1>second wedge angle ?2 between the first surface and secondary bevel.Type: ApplicationFiled: October 14, 2022Publication date: February 2, 2023Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens, Matthias Gester
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Publication number: 20230032402Abstract: The present invention relates to a cutting blade having a first face, a second face opposed to the first face and different from the first face as well as a cutting edge at the intersection of the first face and the second face. The first face comprises a first surface and a primary bevel with a first wedge angle ?1 between the first surface and the primary bevel. The second face comprises a secondary bevel and a tertiary bevel with a second wedge angle ?2 between the first surface on the first face and the secondary bevel and a third wedge angle ?3 between the first surface on the first face and the tertiary bevel, where ?1>?2 and ?2<?3. Moreover, the present invention relates to a hair removal device comprising this cutting blade.Type: ApplicationFiled: October 14, 2022Publication date: February 2, 2023Inventors: Peter Bodo Gluche, Ralph Gretzschel, Michael Mertens
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Patent number: 9227834Abstract: The present subject matter relates to a micromechanical component having a top face and a bottom face and at least two side faces, and a coating of diamond and/or diamond-like carbon (DLC) which encompasses all the surfaces of the component, wherein on at least one side face, across at least a part of said side face, the coating has a smaller coating thickness than that of the top face and/or bottom face, so that a reinforced area in reference to the at least one side face is produced.Type: GrantFiled: April 12, 2012Date of Patent: January 5, 2016Assignees: Diamaze Microtechnology S.A., GFD Gesellschaft für Diamantprodukte mbHInventors: Peter Gluche, Ralph Gretzschel, Matthias Wiora
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Publication number: 20120263909Abstract: The present subject matter relates to a micromechanical component having a top face and a bottom face and at least two side faces, and a coating of diamond and/or diamond-like carbon (DLC) which encompasses all the surfaces of the component, wherein on at least one side face, across at least a part of said side face, the coating has a smaller coating thickness than that of the top face and/or bottom face, so that a reinforced area in reference to the at least one side face is produced.Type: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Applicants: Diamaze Microtechnology S.A., GFD Gesellschaft fur Diamantprodukte mbHInventors: Peter Gluche, Ralph Gretzschel, Matthias Wiora