# US 11,029,121 B2 · Archery bow limb cup with damper > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,029,121 B2 - Document ID: US11029121B2 - Status: Granted - Kind: B2 - Application number: 16/374,599 - Filed: 2019-04-03 - Published: 2019-10-03 - Granted: 2021-06-08 - Earliest claimed: 2018-04-03 - Assignees: Mcp IP, LLC - Applicants: Mcp IP, LLC - Inventors: Mathew A. McPherson - Web page: https://patentgrep.com/patent/US11029121B2 ## CPC - F41B 5/1426: {Bow stabilisers or vibration dampers} - F41B 5/10: Compound bows {(compound crossbows F41B5/123)} - F41B: WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR (projectiles for fishing, e.g. fish-spears, A01K81/00; sports implements for throwing A63B65/00, e.g. boomerangs A63B65/08; stationary apparatus for projecting sports balls, e.g. tennis balls, A63B69/40; throwing or slinging toys A63H33/18; knives, axes B26B; projectiles or missiles other than those incorporating springs as projecting means F42B6/00) ## Abstract In some embodiments, a limb cup comprises a body and a vibration damper. The body comprises a first limb cavity and a damper housing. The damper housing comprises an aperture. The vibration damper comprises a resilient member and a weight. The first limb cavity is arranged to receive an archery bow limb. The resilient member is oriented in the aperture and supported by the damper housing. The weight is supported by the resilient member. ## Claims ### Claim 1 A limb cup comprising: a body arranged for attachment to an archery bow riser, the body comprising a first limb cavity, a tension-transfer bearing surface and a damper housing, the damper housing comprising an aperture, the first limb cavity at least partially defined by a tension bearing surface and a compression bearing surface; and a vibration damper comprising a resilient member and a weight; wherein the body is arranged to contact a fastener assembly, the first limb cavity is arranged to receive an archery bow limb, the tension-transfer bearing surface is arranged to transfer forces from the archery bow limb to the fastener assembly, the resilient member is oriented in the aperture and supported by the damper housing, and the weight is supported by the resilient member. ### Claim 2 (depends on 1) The limb cup of claim 1, the body comprising a single piece of material. ### Claim 3 (depends on 1) The limb cup of claim 1, the damper housing integrally formed with the body. ### Claim 4 (depends on 1) The limb cup of claim 1, the damper housing attached to the body by a fastener. ### Claim 5 (depends on 1) The limb cup of claim 1, the damper housing attached to the body by resilient deformation or interference fit between the damper housing and the body. ### Claim 6 (depends on 1) The limb cup of claim 1, the body further comprising a second limb cavity. ### Claim 7 (depends on 6) The limb cup of claim 6, wherein the first limb cavity and the second limb cavity are symmetric across a plane. ### Claim 8 (depends on 7) The limb cup of claim 7, wherein a first half of the body is symmetric with a second half of the body across the plane. ### Claim 9 (depends on 7) The limb cup of claim 7, wherein the vibration damper is symmetric across the plane. ### Claim 10 A limb cup comprising: a body comprising a limb cavity, a tension-transfer bearing surface and a post, the limb cavity arranged to receive an archery bow limb; and a vibration damper comprising a resilient member and a weight, the post supporting the resilient member, the resilient member surrounding the post, the resilient member supporting the weight; wherein the body is arranged to contact a fastener assembly, the tension-transfer bearing surface is arranged to transfer forces from the archery bow limb to the fastener assembly and the fastener assembly is offset from the post. ### Claim 11 (depends on 10) The limb cup of claim 10, wherein the post is formed integrally with the body. ### Claim 12 (depends on 10) The limb cup of claim 10, the weight surrounding the post. ### Claim 13 An archery bow comprising: a riser; a limb cup attached to the riser by a fastener assembly and a compression bearing zone, the limb cup comprising a limb cavity, a tension-transfer bearing surface and a vibration damper, the limb cavity at least partially defined by a tension bearing surface and a compression bearing surface, the vibration damper comprising a resilient member and a weight; and a limb supported by the limb cup, a portion of the limb oriented in the limb cavity; wherein the tension-transfer bearing surface is positioned between the limb and the fastener assembly. ### Claim 14 (depends on 13) The archery bow of claim 13, the limb cup comprising a body comprising the limb cavity and a damper housing, the damper housing comprising an aperture. ### Claim 15 (depends on 14) The archery bow of claim 14, the resilient member oriented in the aperture and supported by the damper housing, the weight supported by the resilient member. ### Claim 16 (depends on 13) The archery bow of claim 13, the fastener assembly comprising a limb bolt, the vibration damper positioned on a first side of the limb bolt, the limb extending away from the vibration damper to a second side of the limb bolt. ### Claim 17 (depends on 13) The archery bow of claim 13, the fastener assembly extending through the tension-transfer bearing surface. ### Claim 18 (depends on 14) The archery bow of claim 14, the damper housing comprising a first protrusion and a second protrusion, the body comprising a first recess and a second recess, the first recess shaped complimentary to the first protrusion, the second recess shaped complimentary to the second protrusion. ### Claim 19 (depends on 18) The archery bow of claim 18, a shape of the first protrusion being symmetric with a shape of the second protrusion across a reference plane aligned upon a midline of the limb cup. ### Claim 20 (depends on 13) The archery bow of claim 13, wherein the fastener assembly is positioned between the vibration damper and the compression bearing zone.