# US 2014/0196292 A1 · Rotary electric shaver > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196292 A1 - Document ID: US20140196292A1 - Status: Published application - Kind: A1 - Application number: 13/739,439 - Filed: 2013-01-11 - Published: 2014-07-17 - Earliest claimed: 2013-01-11 - Assignees: Rovcal, Inc. - Applicants: Rovcal, LLC - Inventors: Paul Allen Schmitt - Web page: https://patentgrep.com/patent/US20140196292A1 ## CPC - B26B 19/14: of the rotary-cutter type; Cutting heads therefor; Cutters therefor (B26B19/04 takes precedence) - B26B 19/146: {Complete cutting head being movable} - B26B 19/28: Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive (electric motors per se H02) - B26B 19/3893: {Manufacturing of shavers or clippers or components thereof} - Y10T 29/49002: Electrical device making - 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) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A rotary electric shaver includes a handle assembly having a housing, a motor disposed in the housing, a drive shaft operatively connected to the motor and extending through the housing, and a socket for securing a shaver head thereto. The shaver head assembly includes a coupling for detachable coupling to the socket. The coupling is configured to allow the shaver head to be detachably coupled to the handle assembly in at least two different orientations of the shaver head relative to the handle assembly. ## Claims ### Claim 1 A rotary electric shaver comprising: a handle assembly including a housing, a motor disposed in the housing, and a drive shaft operatively connected to the motor and extending through the housing, and a socket for securing a shaver head thereto, and the shaver head assembly including a coupling for detachable coupling to the socket, the coupling configured to allow the shaver head to be detachably coupled to the handle assembly in at least two different orientations of the shaver head relative to the handle assembly. ### Claim 2 (depends on 1) The rotary shaver of claim 1, wherein the shaver head assembly includes a plurality of inner cutters each operatively coupleable to the drive shaft for rotation therewith, and a plurality of outer cutters each corresponding to a respective one of the inner cutters. ### Claim 3 (depends on 2) The rotary shaver of claim 2 wherein the shaver head assembly is configured for pivoting movement relative to the handle. ### Claim 4 (depends on 1) The rotary shaver of claim 1 wherein the head assembly includes a hair pocket for retaining hair clippings and a gear housing for housing a gearset, the hair pocket and the gear housing being separated by an intermediate wall. ### Claim 5 (depends on 4) The rotary shaver of claim 4 wherein the gearset includes a plurality of drive members, the drive members extending through the intermediate wall for rotational engagement with inner cutters. ### Claim 6 (depends on 4) The rotary shaver of claim 4, wherein the shaver head includes a skin contact surface coupled to the outer cutters, where an area between the skin contact surface and the intermediate wall defines the hair pocket. ### Claim 7 (depends on 6) The rotary shaver of claim 6, wherein the skin contact surface is detachably coupled to the shaver head assembly. ### Claim 8 (depends on 1) The rotary shaver of claim 1, wherein the socket has a hexagonal cross section. ### Claim 9 (depends on 8) The rotary shaver of claim 8 wherein the shaver head further comprises at least two opposing clips configured for interlocking engagement with the socket. ### Claim 10 (depends on 1) The rotary shaver of claim 1, wherein the at least two different orientations are approximately 60 degrees apart. ### Claim 11 (depends on 1) The rotary shaver of claim 1, wherein the coupling is configured to fit at least partially within the socket. ### Claim 12 (depends on 11) The rotary shaver of claim 11, wherein the coupling includes a stop defining an extent to which the coupling fits within the socket. ### Claim 13 A detachable shaver head assembly for a rotary electric shaver, the rotary electric shaver having a handle including a housing, a motor, and a drive shaft accessible by the shaver head assembly exterior of the housing, the shaver head assembly being positionable on the handle assembly and comprising: a coupling for detachable coupling to a complimentary socket of the handle, the coupling configured to allow the shaver head to be detachably coupled to the handle assembly in at least two different orientations of the shaver head with respect to the handle assembly. ### Claim 14 (depends on 13) The rotary shaver of claim 13, wherein the shaver head assembly includes a plurality of inner cutters each operatively coupleable to the drive shaft for rotation therewith, and a plurality of outer cutters each corresponding to a respective one of the inner cutters. ### Claim 15 (depends on 14) The rotary shaver of claim 14, the shaver head assembly configured for pivoting movement relative to the handle. ### Claim 16 (depends on 13) The rotary shaver of claim 13 wherein the head assembly includes a hair pocket for retaining hair clippings and a gear housing for housing a gearset for driving the inner cutters, the hair pocket and the gear housing being separated by an intermediate wall. ### Claim 17 (depends on 16) The rotary shaver of claim 16 wherein the gearset includes a plurality of drive members, the drive members extending through the intermediate wall for rotational engagement with the inner cutters. ### Claim 18 (depends on 13) The rotary shaver of claim 13, wherein the socket has a hexagonal cross section. ### Claim 19 (depends on 18) The rotary shaver of claim 18, further comprising at least two opposing clips configured for interlocking engagement with the socket. ### Claim 20 A method of positioning a detachable shaver head on a rotary electric shaver handle, the rotary electric shaver having a handle including a housing, a motor, and a drive shaft accessible by the shaver head assembly exterior of the housing, aligning a coupling of the shaver head with a complimentary socket of the handle, the coupling configured for aligning with the socket in at least two different orientations of the shaver head with respect to the handle, pressing the coupling to the socket such that the coupling is detachably coupled to the socket, and the drive shaft engages with a drive coupling of the shaver head.