# US 5,349,786 A · Apparatus and method for producing and oscillating, an orbiting and a vibrating movement on a disc body > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,349,786 A - Document ID: US5349786A - Status: Granted - Kind: A - Application number: 08/126,774 - Filed: 1993-09-27 - Granted: 1994-09-27 - Earliest claimed: 1993-09-27 - Inventors: James M. Dorrah - Web page: https://patentgrep.com/patent/US5349786A ## CPC - B24B 45/00: Means for securing grinding wheels on rotary arbors (suppression of vibrations in systems F16F15/00; testing static or dynamic balancing of machines G01M1/00) - B24B 23/03: the tool being driven in a combined movement - B24D 7/16: Bushings; Mountings - B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS - B24D: TOOLS FOR GRINDING, BUFFING OR SHARPENING (abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls B24B31/14; honing tools B24B33/08; lapping tools B24B37/11) ## Abstract A resilient coupling having a cup-shaped sleeve and an elastomeric pad disposed within the cup-shaped sleeve. A threaded hub is embedded with in the elastomeric pad. The bottom of the hub generally registers with an end of the elastomeric pad which is directly exposed to the atmosphere and is not covered. ## Claims ### Claim 1 A resilient coupling comprising a cup-shaped sleeve means having a cylindrical sleeve wall terminating in a cylindrical sleeve end; an elastomeric pad means disposed within said cup-shaped sleeve means, said elastomeric pad means having a cylindrical elastomeric wall and terminating in an elastomeric pad end; a threaded hub embedded within said elastomeric pad means, said threaded hub having a hub top with a general planar surface, a hub bottom with a general planar surface and a threaded longitudinal hub opening; and said hub bottom generally registers with said elastomeric pad end and is spaced from said cylindrical elastomeric wall with said elastomeric end directly exposed to the atmosphere. ### Claim 2 (depends on 1) The resilient coupling of claim 1 wherein said cylindrical sleeve end generally registers with a horizontal plane of the planar surface of said hub top. ### Claim 3 (depends on 1) The resilient coupling of claim 1 wherein said cylindrical sleeve end generally registers with a horizontal plane of the planar surface of said hub bottom. ### Claim 4 (depends on 2) The resilient coupling of claim 2 wherein said hub top defines a top hub flange. ### Claim 5 (depends on 3) The resilient coupling of claim 3 wherein said hub bottom defines a bottom hub flange. ### Claim 6 (depends on 1) The resilient coupling of claim 1 wherein said cylindrical sleeve wall of said cup-shaped sleeve means defines at least one longitudinal slot disposed substantially along the length of the cylindrical wall. ### Claim 7 (depends on 1) The resilient coupling of claim 1 wherein said cylindrical sleeve end terminates between a point that registers with a horizontal plane of the planar surface of said hub top and a point that registers with a horizontal plane of the planar surface of said hub bottom. ### Claim 8 (depends on 1) The resilient coupling of claim 1 wherein said cup-shaped sleeve means has a structure defining a projecting internal hub having a threaded hub bore. ### Claim 9 (depends on 8) The resilient coupling of claim 8 additionally comprising an intermediate threaded shaft threadably engaged into said hub opening, a second cup-shaped sleeve means having a structure defining a threaded sleeve bore and a second cylindrical sleeve wall terminating in a second cylindrical sleeve end, said intermediate threaded shaft is threadably engaged into said threaded sleeve bore; a second elastomeric pad means disposed within said second cup-shaped sleeve means, said elastomeric pad means having a second cylindrical elastomeric wall and terminating in a second elastomeric pad end; and a second threaded hub embedded within said second elastomeric pad means. ### Claim 10 (depends on 9) The resilient coupling of claim 9 wherein said second threaded hub has a second hub top with a general planar surface, a second hub bottom with a general planar surface and a second threaded longitudinal hub opening, and said second hub bottom generally registers with said second elastomeric pad end and is spaced from said second cylindrical elastomeric wall with said second elastomeric end directly exposed to the atmosphere. ### Claim 11 (depends on 10) The resilient coupling of claim 10 wherein said second cylindrical sleeve end generally registers with a horizontal plane of the planar surface of said second hub top. ### Claim 12 (depends on 10) The resilient coupling of claim 10 wherein said second cylindrical sleeve end generally registers with a horizontal plane of the planar surface of said second hub bottom. ### Claim 13 (depends on 11) The resilient coupling of claim 11 wherein said second hub top defines a second top hub flange. ### Claim 14 (depends on 12) The resilient coupling of claim 12 wherein said second hub bottom defines a second bottom hub flange. ### Claim 15 (depends on 10) The resilient coupling of claim 10 wherein said second cylindrical sleeve wall of said second cup-shaped sleeve means defines at least one second longitudinal slot disposed substantially along the length of the second cylindrical wall. ### Claim 16 (depends on 10) The resilient coupling of claim 10 wherein said second cylindrical sleeve end terminates between a point that registers with a horizontal plane of the planar surface of said second hub top and a point that registers with a horizontal plane of the planar surface of said second hub bottom. ### Claim 17 (depends on 10) The resilient coupling of claim 10 wherein said second cup-shaped sleeve means has a structure defining a sloping surface disposed around said threaded sleeve bore and concentric thereto, said sloping surface having a plane having an angle of 1 to 60 degrees with the planar surface of the hub bottom. ### Claim 18 (depends on 17) The resilient coupling of claim 17 additionally comprising a driving shaft threadably engaged within said threaded hub bore, and a driven shaft threadably engaged within said second threaded longitudinal hub. ### Claim 19 (depends on 8) The resilient coupling of claim 8 wherein said elastomeric pad means has a longitudinal elastomeric bore extending from said projecting intermediate hub to said hub top of said threaded hub, said longitudinal elastomeric bore is concentric with said threaded longitudinal hub opening and with said threaded hub bore. ### Claim 20 (depends on 19) The resilient coupling of claim 19 additionally comprising a driving shaft threadably engaged to said threaded longitudinal hub opening and passing through said longitudinal elastomeric bore and threadably engaged to said threaded longitudinal hub opening.