# US 10,369,711 B2 · Shaving razor cartridge > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,711 B2 - Document ID: US10369711B2 - Status: Granted - Kind: B2 - Application number: 15/079,474 - Filed: 2016-03-24 - Published: 2016-09-29 - Granted: 2019-08-06 - Earliest claimed: 2015-03-25 - Assignees: The Gillette Company - Applicants: The Gillette Company - Inventors: Jack Anthony Washington; William Owen Jolley - Web page: https://patentgrep.com/patent/US10369711B2 ## CPC - B26B 21/4018: {Guard elements} - B26B 21/227: {with blades being resiliently mounted in the changeable unit} - B26B 21/4012: {Housing details, e.g. for cartridges} - B26B 21/4031: {characterised by special geometric shaving parameters, e.g. blade span or exposure} - B26B 21/443: {Lubricating strips attached to the razor head} - 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 razor cartridge with a housing with a guard and a cap. At least one blade is mounted to the housing. The at least one blade has a cutting edge. At least one blade registration member is mounted to the housing. A blade retention member secures the at least one blade between the blade registration member and the blade retention member. The blade registration member has an unsupported region with a span of 0.25 mm to 5 mm between a pair of supported regions. ## Claims ### Claim 1 A shaving razor cartridge comprising: a housing having a guard and a cap; at least one blade mounted to the housing between the guard and the cap, the at least one blade having a cutting edge and a base portion having a bottom surface; at least one blade registration member mounted to the housing, the blade registration having a bottom surface with pair of supported regions contacting the housing and an unsupported region therebetween that is spaced apart from the housing; a blade retention member securing the at least one blade between the blade registration member and the blade retention member, wherein the unsupported region contacts the bottom surface of the base portion and has a span of about 0.25 mm to about 5 mm between a pair of supported regions and the blade registration member and housing are a unitary member and the at least one blade registration member comprises an elastomeric material to facilitate the blade registration member pushing the at least one blade against the blade retention member. ### Claim 2 (depends on 1) The shaving razor cartridge of claim 1 wherein the blade registration member maintains the cutting edge against the blade retention member during a shaving stroke. ### Claim 3 (depends on 1) The shaving razor cartridge of claim 1 wherein the blade registration member comprises two blade registration members that are spaced apart from each other and are parallel to each other. ### Claim 4 (depends on 3) The shaving razor cartridge of claim 3 wherein the at least one blade has a first end portion and a second end portion that each contact one of the blade registration members. ### Claim 5 (depends on 1) The shaving razor cartridge of claim 1 wherein the blade registration member has a top surface with a crown extending in a direction transverse to the guard and the cap. ### Claim 6 (depends on 5) The shaving razor cartridge of claim 5 wherein the top surface is convex. ### Claim 7 (depends on 1) The shaving razor cartridge of claim 1 wherein the blade registration member has a bottom surface that is concave. ### Claim 8 (depends on 1) The shaving razor cartridge of claim 1 wherein the at least one blade at least partially buckles and compresses the blade registration member to bias the cutting edge against a bottom surface of the blade retention member. ### Claim 9 (depends on 1) The shaving razor cartridge of claim 1 wherein the blade registration member comprises a material having a Shore A hardness that is less than a material comprising the housing. ### Claim 10 (depends on 1) The shaving razor cartridge of claim 1 wherein the blade retention member comprises a pair of spaced apart clips. ### Claim 11 (depends on 10) The shaving razor cartridge of claim 10 wherein the blade registration member is positioned directly beneath the corresponding blade retention member. ### Claim 12 (depends on 1) The shaving razor cartridge of claim 1 further comprising an elastomeric skin engaging member in front of the guard. ### Claim 13 (depends on 12) The shaving razor cartridge of claim 12 wherein the blade registration member and the elastomeric skin engaging member are a unitary member. ### Claim 14 (depends on 1) The shaving razor cartridge of claim 1 wherein a material comprising the blade registration member has a modulus that is less than a modulus of a material comprising the housing. ### Claim 15 A shaving razor cartridge comprising: a housing having a guard and a cap; at least one blade mounted to the housing between the guard and the cap, the at least one blade having a cutting edge and a base portion having a bottom surface; at least one blade registration member mounted to the housing, the blade registration having a bottom surface with pair of supported regions contacting the housing and an unsupported region spaced apart from the housing; a blade retention member securing the at least one blade between the blade registration member and the blade retention member, wherein the unsupported region has a span of about 0.25 mm to about 5 mm between the pair of supported regions to facilitate the blade registration member to deflect and/or partially buckle and the bottom surface of the base portion is compressed into the at least one blade registration member. ### Claim 16 (depends on 15) The shaving razor cartridge of claim 15 wherein the blade registration member comprises two blade registration members that are spaced apart from each other and are parallel to each other. ### Claim 17 (depends on 16) The shaving razor cartridge of claim 16 wherein the at least one blade has a first end portion and a second end portion that each contact one of the blade registration members. ### Claim 18 (depends on 15) The shaving razor cartridge of claim 15 wherein the blade registration member has a top surface with a crown extending in a direction transverse to the guard and the cap. ### Claim 19 (depends on 18) The shaving razor cartridge of claim 18 wherein the top surface is convex. ### Claim 20 (depends on 19) The shaving razor cartridge of claim 19 wherein the blade registration member has a bottom surface that is concave.