Patents by Inventor Vassilis Papachristos
Vassilis Papachristos 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).
-
Patent number: 10843355Abstract: An integrally formed rigid razor blade is provided. The razor blade includes a cutting edge portion extending along a cutting edge portion axis and having a cutting edge at one end, a base portion extending along a base portion axis, and a bent portion intermediate the cutting edge portion and the base portion. The bent portion has an average radius of curvature of between 0.4 millimeters and 1.00 millimeters. The cutting edge portion has a cantilever dimension which is a constant distance of between 1.1 millimeters and 1.8 millimeters when measured from the cutting edge portion to the base portion axis.Type: GrantFiled: July 24, 2019Date of Patent: November 24, 2020Assignee: BIC-VIOLEX SAInventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Patent number: 10744660Abstract: An integrally formed rigid razor blade made of martensitic stainless steel includes a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis. The bent portion is intermediate the cutting edge portion and the base portion. The blade has a concave face and an opposed convex face. An average radius of curvature of the concave face of the bent portion is between 0.4 millimeters and 1 millimeter.Type: GrantFiled: March 5, 2019Date of Patent: August 18, 2020Assignee: BIC VIOLEX S.A.Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Publication number: 20200230837Abstract: A blade support for a shaving razor including an inner face, an outer face an elongated lower portion, an elongated upper portion, and an elongated intermediate bent portion between the lower and upper portions. The upper portion extends forward of the intermediate bent portion to a top side. The lower portion extends downward from the intermediate bent portion to a bottom side. The top side and/or the bottom side are substantially curved surfaces.Type: ApplicationFiled: January 24, 2018Publication date: July 23, 2020Applicant: Bic Violex S.A.Inventors: Charalampos SCHIZAS, Vassilis PAPACHRISTOS, Vaggelis SPYROPOULOS, Christos MAVRIDIS, Dimitris FOTOPOULOS, Yiannis VALTZIS, Efthimios SALTAS, Basant JHOTY, Georgios KOULOURIAS
-
Publication number: 20200023533Abstract: A razor blade substrate having a substrate that includes a blade edge portion having a profiled geometry which is covered by a strengthening coating deposited on the razor blade substrate at least at the blade edge portion. The strengthening coating covering the blade edge tip, having a profiled geometry and having a tapering geometry with two coating sides converge toward a blade edge tip. The strengthening coating includes a strengthening layer made of a titanium- and boron-containing material.Type: ApplicationFiled: September 10, 2019Publication date: January 23, 2020Inventors: Stergios Logothetidis, Nikolaos Kalfagiannis, Constantinos Mavroidis, Vassilis Papachristos, Michallis Karoussis
-
Patent number: 10500745Abstract: An integrally formed rigid razor blade has, in cross-section transverse to a longitudinal axis, a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis and has a rear edge at one end. The bent portion is intermediate the cutting edge portion and the base portion. The rear edge of the base portion is serrated along the longitudinal axis. The serrations have a height of between 0.13 millimeters and 0.32 millimeters.Type: GrantFiled: November 6, 2017Date of Patent: December 10, 2019Assignee: BIC VIOLEX SAInventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Publication number: 20190344460Abstract: An integrally formed rigid razor blade is provided. The razor blade includes a cutting edge portion extending along a cutting edge portion axis and having a cutting edge at one end, a base portion extending along a base portion axis, and a bent portion intermediate the cutting edge portion and the base portion. The bent portion has an average radius of curvature of between 0.4 millimeters and 1.05 millimeters. The cutting edge portion has a cantilever dimension which is a constant distance of between 1.1 millimeters and 1.8 millimeters when measured from the cutting edge portion to the base portion axis.Type: ApplicationFiled: July 24, 2019Publication date: November 14, 2019Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, loannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Patent number: 10442098Abstract: A razor blade substrate having a substrate that includes a blade edge portion having a profiled geometry which is covered by a strengthening coating deposited on the razor blade substrate at least at the blade edge portion. The strengthening coating covering the blade edge tip, having a profiled geometry and having a tapering geometry with two coating sides converge toward a blade edge tip. The strengthening coating includes a strengthening layer made of a titanium- and boron-containing material.Type: GrantFiled: July 30, 2015Date of Patent: October 15, 2019Assignee: BIC VIOLEX SAInventors: Stergios Logothetidis, Nikolaos Kalfagiannis, Constantinos Mavroidis, Vassilis Papachristos, Michallis Karoussis
-
Patent number: 10391651Abstract: A razor head includes a housing and at least one integrally formed rigid razor blade. The housing has a top face defining a shaving window and an opposed stopping face. The razor blades are freely mounted in the housing and have a cutting edge portion and a guided portion. A bent portion is intermediate the cutting edge portion and the guided portion. A cantilever dimension, measured as the distance between the cutting edge and a guided portion axis, is between 1.1 millimeters and 1.8 millimeters. The guided portion cooperates with a guide so that each blade is independently translatable with respect to the housing along a sliding direction parallel to the guided portion axis under the effect of shaving forces applied to the blade during shaving.Type: GrantFiled: August 11, 2017Date of Patent: August 27, 2019Assignee: BIC-VIOLEX SAInventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Publication number: 20190193292Abstract: An integrally formed rigid razor blade made of martensitic stainless steel includes a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis. The bent portion is intermediate the cutting edge portion and the base portion. The blade has a concave face and an opposed convex face. An average radius of curvature of the concave face of the bent portion is between 0.4 millimeters and 1 millimeter.Type: ApplicationFiled: March 5, 2019Publication date: June 27, 2019Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Patent number: 10220533Abstract: An integrally formed rigid razor blade made of martensitic stainless steel includes a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis. The bent portion is intermediate the cutting edge portion and the base portion. The blade has a concave face and an opposed convex face. An average radius of curvature of the concave face of the bent portion is between 0.5 millimeters to 0.57 millimeters.Type: GrantFiled: March 9, 2018Date of Patent: March 5, 2019Assignee: BIC VIOLEX SAInventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Patent number: 10220532Abstract: An integrally formed rigid razor blade made of martensitic stainless steel includes a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis. The bent portion is intermediate the cutting edge portion and the base portion. The blade has a concave face and an opposed convex face. An average radius of curvature of the concave face of the bent portion is between 0.5 millimeters and 1 millimeters.Type: GrantFiled: November 6, 2017Date of Patent: March 5, 2019Assignee: BIC VIOLEX SAInventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Publication number: 20180215056Abstract: A razor blade substrate having a substrate that includes a blade edge portion having a profiled geometry which is covered by a strengthening coating deposited on the razor blade substrate at least at the blade edge portion. The strengthening coating covering the blade edge tip, having a profiled geometry and having a tapering geometry with two coating sides converge toward a blade edge tip. The strengthening coating includes a strengthening layer made of a titanium- and boron-containing material.Type: ApplicationFiled: July 30, 2015Publication date: August 2, 2018Inventors: Stergios Logothetidis, Nikolaos Kalfagiannis, Constantinos Mavroidis, Vassilis Papachristos
-
Publication number: 20180194025Abstract: An integrally formed rigid razor blade made of martensitic stainless steel includes a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis. The bent portion is intermediate the cutting edge portion and the base portion. The blade has a concave face and an opposed convex face. An average radius of curvature of the concave face of the bent portion is between 0.5 millimeters to 0.57 millimeters.Type: ApplicationFiled: March 9, 2018Publication date: July 12, 2018Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Publication number: 20180065262Abstract: An integrally formed rigid razor blade made of martensitic stainless steel includes a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis. The bent portion is intermediate the cutting edge portion and the base portion. The blade has a concave face and an opposed convex face. An average radius of curvature of the concave face of the bent portion is between 0.5 millimeters and 1 millimeters.Type: ApplicationFiled: November 6, 2017Publication date: March 8, 2018Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Publication number: 20180065263Abstract: An integrally formed rigid razor blade has, in cross-section transverse to a longitudinal axis, a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis and has a rear edge at one end. The bent portion is intermediate the cutting edge portion and the base portion. The rear edge of the base portion is serrated along the longitudinal axis. The serrations have a height of between 0.13 millimeters and 0.32 millimeters.Type: ApplicationFiled: November 6, 2017Publication date: March 8, 2018Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Publication number: 20180009123Abstract: A razor head includes a housing and at least one integrally formed rigid razor blade. The housing has a top face defining a shaving window and an opposed stopping face. The razor blades are freely mounted in the housing and have a cutting edge portion and a guided portion. A bent portion is intermediate the cutting edge portion and the guided portion. A cantilever dimension, measured as the distance between the cutting edge and a guided portion axis, is between 1.1 millimeters and 1.8 millimeters. The guided portion cooperates with a guide so that each blade is independently translatable with respect to the housing along a sliding direction parallel to the guided portion axis under the effect of shaving forces applied to the blade during shaving.Type: ApplicationFiled: August 11, 2017Publication date: January 11, 2018Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Patent number: 9862108Abstract: An integrally formed rigid razor blade having a body with a cutting edge portion extending about a cutting edge portion plane, and having a cutting edge at one end, a base portion extending along a base portion plane, a bent portion intermediate the cutting edge portion and the base portion. The body is made of martensitic stainless steel that includes mainly iron and between 0.62% and 0.75% of carbon in weight.Type: GrantFiled: October 8, 2012Date of Patent: January 9, 2018Assignee: BIC VIOLEX S.A.Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou
-
Patent number: 9393588Abstract: A method of forming a lubricating coating on a razor blade that includes: providing a razor blade having a body and a cutting edge tapering from the body; providing a tank of a colloidal dispersion of a polymer having less than 2% in weight of polymer particles; providing a spray gun in fluid communication with the tank, the gun having an end directed to a blade-spraying region; placing the razor blade at a predetermined temperature (T) in the blade-spraying region; flowing the colloidal dispersion from the tank to the end of the spray gun, and in a direction to the razor blade; controlling a first gas stream to nebulise the colloidal dispersion into a mist in a dispersion region located between the end of the spray gun and the razor blade; independently controlling a second gas stream to control the mist properties; transporting the mist from the dispersion region to the razor blade placed in the blade-spraying region, the razor blade being at the predetermined temperature (T) so that water evaporates from tType: GrantFiled: October 22, 2009Date of Patent: July 19, 2016Assignee: BIC VIOLEX S.A.Inventors: Giorgos Vlachos, Vassilis Papachristos, Michalis Karoussis
-
Patent number: 9180599Abstract: A method for deposition of a layer on a razor blade edge of a razor blade, the layer including at least two components, in an enclosure comprising at least first and second sputter targets, each sputter target including at least one of the components to be deposited on the edge and being adapted, in operation, to release the component in the enclosure.Type: GrantFiled: September 8, 2004Date of Patent: November 10, 2015Assignee: BIC-VIOLEX S.A.Inventors: Vassilis Papachristos, Michalis Karoussis, Dimitris Pissimissis
-
Publication number: 20140230252Abstract: An integrally formed rigid razor blade having a body with a cutting edge portion extending about a cutting edge portion plane, and having a cutting edge at one end, a base portion extending along a base portion plane, a bent portion intermediate the cutting edge portion and the base portion. The body is made of martensitic stainless steel that includes mainly iron and between 0.62% and 0.75% of carbon in weight.Type: ApplicationFiled: October 8, 2012Publication date: August 21, 2014Inventors: Vasileios Davos, Vassilis Papachristos, Dimitrios Efthimiadis, Panagiotis Zafiropoulos, Nikolaos Skounakis, Ioannis Komianos, Michalis Karoussis, Anastasios Papageorgiou