# US 10,369,712 B2 · Shaving blade cartridge and a shaver comprising such shaving blade cartridge > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,712 B2 - Document ID: US10369712B2 - Status: Granted - Kind: B2 - Application number: 14/886,419 - Filed: 2015-10-19 - Published: 2017-04-20 - Granted: 2019-08-06 - Earliest claimed: 2015-10-19 - Assignees: Bic-Violex SA - Applicants: Bic-Violex SA - Inventors: Ioannis Bozikis; Georgios Georgakis - Web page: https://patentgrep.com/patent/US10369712B2 ## CPC - B26B 21/4043: {Contour trimming} - B26B 21/4012: {Housing details, e.g. for cartridges} - B26B 21/4018: {Guard elements} - B26B 21/4025: {Cap elements} - B26B 21/4031: {characterised by special geometric shaving parameters, e.g. blade span or exposure} - B26B 21/521: {Connection details, e.g. connection to razor heads} - B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H) ## Abstract A shaving blade cartridge includes a housing extending along a longitudinal axis having a top side and a bottom side opposite the top side, and a first and second longitudinal sides each extending longitudinally along the longitudinal axis between the top and bottom sides, a primary cutting blade mounted on the housing between the first and second longitudinal sides, and having a cutting edge, a primary cap located rearward of the cutting edge, a trimming element mounted on the housing, the trimming element comprising a trimming edge, the trimming edge and the cutting edge being disposed opposite from each other, and a trimming guard bar provided on the housing, the trimming guard bar being forward of the trimming edge, the trimming guard bar comprising a trimming guard bar edge. ## Claims ### Claim 1 A shaving blade cartridge comprising: a housing extending along a longitudinal axis (X-X) having a top side and a bottom side opposite the top side , and first and second longitudinal sides each extending longitudinally along the longitudinal axis (X-X) between the top and bottom sides; a primary cutting blade mounted on the housing between the first and second longitudinal sides, and having a cutting edge; a primary cap located rearward of the cutting edge; a trimming element mounted on the housing, the trimming element comprising a trimming edge, the trimming edge and the cutting edge being disposed opposite from each other; a trimming guard bar provided on the housing, the trimming guard bar being forward of the trimming edge, the primary cap, the trimming element, and the trimming guard bar being positioned along a vertical axis, the trimming guard bar comprising a trimming guard bar edge, an external surface of the trimming guard bar being defined by a radius and having a highest point, the highest point corresponding to a point of the trimming guard bar edge closest to the trimming edge, the trimming guard bar edge formed by an intersection between the external surface of the trimming guard bar and an inner surface of the trimming guard bar extending along a horizontal axis transverse to the vertical axis, wherein a theoretical limit trimming curve is defined by the trimming edge, the highest point, and the exterior surface of the trimming guard bar; the theoretical limit trimming curve being concave when viewed from the trimming guard bar, wherein the primary cap is spaced from and disposed behind the theoretical limit trimming curve, and wherein the trimming guard bar is disposed behind the theoretical limit trimming curve toward the second longitudinal side and/or is disposed tangential to the theoretical limit trimming curve toward the second longitudinal side, such that the trimming guard bar does not project beyond the theoretical limit trimming curve. ### Claim 2 (depends on 1) The shaving blade cartridge according to claims 1, wherein the primary cap is disposed behind the theoretical limit trimming curve toward the second longitudinal side. ### Claim 3 (depends on 1) The shaving blade cartridge according to claim 1, wherein the theoretical limit trimming curve is tangential to the guard bar in the vicinity of the trimming guard bar edge along a distance from the trimming guard bar edge between 5% and 20%. ### Claim 4 (depends on 1) The shaving blade cartridge according to claim 1, wherein the trimming guard bar is provided with a curved external surface, the curved external surface being disposed to face the skin of the user, wherein the curved external surface has a curvature which is between 3 millimeters and 8 millimeters. ### Claim 5 (depends on 4) The shaving blade cartridge according to claim 4, wherein the curved external surface has a curvature which is between 6 millimeters and 8 millimeters. ### Claim 6 (depends on 1) The shaving blade cartridge according to claim 1, wherein the theoretical limit trimming curve is a portion of a circle or an ellipse. ### Claim 7 (depends on 6) The shaving blade cartridge according to claim 6, wherein the curvature of the theoretical limit trimming curve is between about 6 millimeters and about 8 millimeters. ### Claim 8 (depends on 1) The shaving blade cartridge according to claim 1, wherein the trimming element includes a trimming blade support and a trimming blade, the trimming blade including the trimming edge, and the trimming blade being supported by the trimming blade support. ### Claim 9 (depends on 1) The shaving blade cartridge according to claim 1, further comprising two retainers retaining the blades on the housing. ### Claim 10 (depends on 1) The shaving blade cartridge according to claim 1, wherein the trimming guard bar comprises fins. ### Claim 11 (depends on 1) The shaving blade cartridge according to claim 1, wherein the trimming guard bar comprises a smooth surface. ### Claim 12 (depends on 1) The shaving blade cartridge according to claim 1, wherein the trimming guard bar is curved and has a radius of between about 7.3 millimeters and about 7.8 millimeters, wherein the theoretical limit trimming curve is a portion of a theoretical circle (TC), wherein the center of the theoretical circle is positioned between about 7.3 millimeters and about 7.7 millimeters along the transversal axis (Y-Y) toward the second longitudinal side from the trimming guard bar edge and between about 0.8 millimeters and 1.2 millimeters along the lateral axis (Z-Z) toward the top side from the trimming guard bar edge. ### Claim 13 (depends on 1) The shaving blade cartridge according to claim 1, wherein the trimming guard bar is curved and has a radius (R) of about 7 millimeters, wherein the theoretical limit trimming curve is a portion of a theoretical circle, wherein the center of the theoretical circle is positioned between about 6.5 millimeters and about 7 millimeters along the transversal axis (Y-Y) toward the second longitudinal side from the trimming guard bar edge and between about 1.5 millimeters and 2 millimeters along the lateral axis (Z-Z) toward the top side from the trimming guard bar edge. ### Claim 14 (depends on 1) The shaving blade cartridge according to claim 1, wherein the trimming element is sandwiched between the housing and the primary cap.