# US 2014/0153968 A1 · Drive gear for extended drive shaft > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153968 A1 - Document ID: US20140153968A1 - Status: Published application - Kind: A1 - Application number: 14/175,593 - Filed: 2014-02-07 - Published: 2014-06-05 - Earliest claimed: 2011-03-29 - Assignees: Static Control Components, Inc. - Applicants: Static Control Components, Inc. - Inventors: Donald R. Huck; Lawrence Dale Lewis; William L. London - Web page: https://patentgrep.com/patent/US20140153968A1 ## CPC - G03G 21/1647: {Mechanical connection means} - F16D 1/06: for attachment of a member on a shaft or on a shaft-end (attachment of marine propellers on shafts B63H23/34) - F16H 57/0025: {with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods} - G03G 15/757: {Drive mechanisms for photosensitive medium, e.g. gears} - G03G 21/1857: {for transmitting mechanical drive power to the process cartridge, drive mechanisms, gears, couplings, braking mechanisms} - Y10T 29/49467: Gear shaping - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - F16H: GEARING - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A cartridge drive gear assembly for holding a drum coupling includes a drive gear having an outer surface and an inner surface, the inner surface including inner projections which extend into the interior of the drive gear and includes at least two voids disposed on opposing sides of the inner projections, and at least one slot disposed in the inner surface ## Claims ### Claim 1 A cartridge drive gear assembly for holding a drum coupling comprising: a drive gear having an outer surface and an inner surface, the inner surface including inner projections which extend into the interior of the drive gear and includes at least two voids disposed on opposing sides of the inner projections; and at least one slot disposed in the inner surface. ### Claim 2 (depends on 1) The cartridge drive gear assembly of claim 1 wherein the at least one slot is disposed in the inner surface and separated from a top surface of the inner projections. ### Claim 3 (depends on 2) The cartridge drive gear assembly of claim 2 further comprising a clip sized to be held by the at least one slot. ### Claim 4 (depends on 3) The cartridge drive gear assembly of claim 3 wherein the at least one slot comprises two slots disposed in opposing portions of the inner surface. ### Claim 5 (depends on 4) The cartridge drive gear assembly of claim 4 further comprising a drum coupling, the drum coupling including a shaft, a spherical driving portion at one end of the shaft and a driven portion at the opposing end of the shaft, the spherical driving portion including two ends of a pin extending out from the surface of the spherical driving portion, wherein the spherical driving portion is disposed at least partially within the inner projections, and wherein the ends of the pin are at least partially disposed in the opposing voids of the inner projections. ### Claim 6 (depends on 5) The cartridge drive gear assembly of claim 5 wherein the spring clip is held in place by the two slots. ### Claim 7 (depends on 1) The cartridge drive gear assembly of claim 1 wherein the at least one slot is disposed in the inner surface and is adjacent to a top surface of the inner projections. ### Claim 8 (depends on 7) The cartridge drive gear assembly of claim 7 further comprising a clip sized to be held by the at least one slot. ### Claim 9 (depends on 8) The cartridge drive gear assembly of claim 8 wherein the at least one slot comprises two slots disposed in opposing portions of the inner surface. ### Claim 10 (depends on 9) The cartridge drive gear assembly of claim 9 further comprising a drum coupling, the drum coupling including a shaft, a spherical driving portion at one end of the shaft and a driven portion at the opposing end of the shaft, the spherical driving portion including two ends of a pin extending out from the surface of the spherical driving portion, wherein the spherical driving portion is disposed at least partially within the inner projections, and wherein the ends of the pin are at least partially disposed in the opposing voids of the inner projections. ### Claim 11 (depends on 10) The cartridge drive gear assembly of claim 10 wherein the spring clip is held in place by the two slots. ### Claim 12 (depends on 1) The cartridge drive gear assembly of claim 1 wherein the inner projections comprise at least one side wall. ### Claim 13 (depends on 1) The cartridge drive gear assembly of claim 1 wherein the inner projections comprise a plurality of ribs. ### Claim 14 (depends on 1) The cartridge drive gear assembly of claim 1 wherein the inner projections comprise a plurality of ribs having at least one rounded portion. ### Claim 15 An OPC drum assembly comprising: an OPC drum; a first end of a drive gear mated to one end of the OPC drum, a second end of the drive gear having an outer surface and an inner surface, the inner surface including inner projections which extend into the interior of the drive gear and includes two voids disposed on opposing sides of the inner projections, the drive gear further including at least one slot disposed in the inner surface. ### Claim 16 (depends on 15) The OPC drum assembly of claim 15 wherein the at least one slot is disposed in the inner surface and separated from a top surface of the inner side projections. ### Claim 17 (depends on 16) The OPC drum assembly of claim 16 further comprising a clip sized to be held by the at least one slot. ### Claim 18 (depends on 17) The OPC drum assembly of claim 17 wherein the at least one slot comprises two slots disposed in opposing portions of the inner surface. ### Claim 19 (depends on 18) The cartridge drive gear assembly of claim 18 further comprising a drum coupling, the drum coupling including a shaft, a spherical driving portion at one end of the shaft and a driven portion at the opposing end of the shaft, the spherical driving portion including two ends of a pin extending out from the surface of the spherical driving portion, wherein the spherical driving portion is disposed at least partially within the inner projections, and wherein the ends of the pin are at least partially disposed in the opposing voids of the inner projections. ### Claim 20 (depends on 15) The OPC drum assembly of claim 15 wherein the at least one slot is disposed in the inner surface and adjacent a top surface of the inner side projections. ### Claim 21 (depends on 20) The OPC drum assembly of claim 20 wherein the spring clip is held in place by the two slots. ### Claim 22 (depends on 15) The OPC drum assembly of claim 15 wherein the inner projections comprise at least one side wall. ### Claim 23 (depends on 15) The OPC drum assembly of claim 15 wherein the inner projections comprise a plurality of ribs. ### Claim 24 (depends on 15) The OPC drum assembly of claim 15 wherein the inner projections comprise a plurality of ribs having at least one rounded portion.