# US 10,307,895 B2 · Extended impact socket construction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,895 B2 - Document ID: US10307895B2 - Status: Granted - Kind: B2 - Application number: 15/391,401 - Filed: 2016-12-27 - Published: 2017-04-20 - Granted: 2019-06-04 - Earliest claimed: 2015-02-04 - Assignees: Lisle Corporation - Applicants: Lisle Corporation - Inventors: Danny Williams; Christopher Watson - Web page: https://patentgrep.com/patent/US10307895B2 ## CPC - B25B 13/065: {characterised by the cross-section of the socket} - B25B 13/06: of socket type - B25B 19/00: Impact wrenches or screwdrivers (portable power-driven B25B21/02) - B25B 21/02: with means for imparting impact to screwdriver blade or nut socket - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING ## Abstract An elongated, generally, cylindrical impact socket has a driven end and a drive end. The socket is elongated, the cylindrical shape is parsed in at least two, distinct uniform diameter generally coaxial sections having a mass in the range of at least about 2 to 3 times the mass of a standard or extended ASMEB107.110.20R socket. ## Claims ### Claim 1 A harmonic balancer fastener removal socket tool for use in combination with an impact tool, said socket tool comprising: a socket body, said socket body including a driven end, a drive end, a substantially straight centerline longitudinal axis of symmetry extending between said ends, a first axial counterbore in said driven end compatible with an impact tool drive inserted in a socket at the driven end, a second axial hexagonal counterbore at the drive end, a first planar face at the driven end transverse to the axis, a second planar face at the drive end transverse to the axis and parallel to the first face, said body having a first generally axially symmetric, outside curved section transverse to the axis extending axially from the second face toward the first face in the range of about 85%±4% of the axial distance from the first face to the second face, said body further including a second generally axially symmetric, outside curved lesser diameter section transverse to the axis extending axially intermediate said first section and said second face, said second outside section having a radial dimension in the range of about 80%±5% of the radial dimension of the first section, said radius of said second section in the range of about 2.25±0.2 times point to point dimension of a side of said hexagonal counterbore, said socket driven end counterbore having an axial depth dimension greater than an axial depth dimension of said hexagonal counterbore, said socket having a material density in the range about 0.28±0.3 pounds per cubic inch and a tensile strength in a range greater than about 150,000±25,000 pounds/in2 and a toughness in the range of about 28 to 60 HRC. ### Claim 2 (depends on 1) The socket tool of claim 1 wherein the socket tool has a torque to mass ratio greater than about 17.5 wherein torque is measured in foot pounds and mass is measured in ounces. ### Claim 3 A harmonic balancer removal socket tool for use in combination with an impact tool, said impact tool including an impact drive, said socket tool comprising: a generally uniform cross section body member having a longitudinal axis, a driven end with an axially transverse first planar end surface with a first coaxial counterbore opening in said first planar surface, said first coaxial opening compatible with an impact tool impact drive; said body further including a drive end axially spaced from said driven end, said drive end including a second axially, transverse planar end surface with a second coaxial counterbore in said second planar surface; said body having a generally regular geometric transverse cross section configuration, a first body section having an axial dimension L1 greater than a second body section having a lesser axial dimension L2, and a uniform radius transition body section connecting the second body section to the first body section, said body having a generally uniform material density and a maximum cross section width W, defining a mass in the range of 15 to 40 ounces and a moment of inertia equal to 1 to 6 times a moment of inertia of an impact wrench compatible with said socket tool. ### Claim 4 (depends on 3) The socket tool of claim 3 wherein the socket tool has a moment of inertia in the range of about 2 to 6 times the moment of inertia of a compatible impact wrench. ### Claim 5 (depends on 3) The socket tool of claim 3 wherein the tool has a torque to mass ratio greater than about 17.5 wherein torque is measured in foot pounds and mass is measured in ounces. ### Claim 6 A harmonic balancer removal socket tool for use in combination with an impact tool including an impact drive for imparting a moment of inertia onto a fastener, said socket tool comprising: a curved outside surface body member having a longitudinal axis, a driven end with an axially transverse first planar surface with a first coaxial counterbore opening in said first planar surface, said first coaxial opening compatible with an impact tool drive; said body further including a drive end axially spaced from said driven end, said drive end including a second axially, transverse planar surface with a second coaxial counterbore in said second planar surface; said body member having a generally regular geometric transverse cross section configuration, a first body section having an axial dimension L1 greater than a second body section having lesser axial dimension L2 and an arcuate, uniform radius transition body section connecting the second body section to the first body section, said body having a generally uniform material density and a maximum cross section width W, defining a mass in the range of 15 to 40 ounces and a moment of inertia equal to greater than a moment of inertia of an impact wrench compatible with said fastener. ### Claim 7 (depends on 6) The socket tool of claim 6 wherein the socket tool has a moment of inertia in the range more than a moment of inertia of an impact wrench. ### Claim 8 (depends on 6) The socket tool of claim 6 wherein the socket tool has a torque to mass ratio greater than about 17.5 wherein torque is measured in foot pounds and mass is measured in ounces.