# US 2024/0189679 A1 · Composite Paddles and Methods for Forming same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2024/0189679 A1 - Document ID: US20240189679A1 - Status: Published application - Kind: A1 - Application number: 18/286,139 - Filed: 2022-04-08 - Published: 2024-06-13 - Earliest claimed: 2021-04-09 - Applicants: Revolin Sports, LLC - Inventors: Hughes Davis; Greta Davis; Rockford Macinnes - Web page: https://patentgrep.com/patent/US20240189679A1 ## CPC - A63B 59/42: with solid surfaces - A63B 59/45: Rubber parts thereof; characterised by bonding between a rubber part and the racket body - A63B 2102/08: Paddle tennis, padel tennis or platform tennis - A63B 2209/00: Characteristics of used materials - A63B 2209/023: Long, oriented fibres, e.g. wound filaments, woven fabrics, mats - A63B 2209/18: biodegradable - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract The present teachings contemplate a paddle comprising a striking portion defining a central axis, a handle portion. and a tapered portion contiguous with both the handle portion and the striking portion: a sandwich structure comprising a core layer and a first skin coupled with the core layer, the first skin comprising a first fabric layer and a second fabric layer coupled with the first fabric layer. ## Claims ### Claim 1 A paddle comprising: a striking portion defining a central axis, a handle portion, and a tapered portion contiguous with both the handle portion and the striking portion; a sandwich structure comprising: a core layer; and a first skin coupled with the core layer, the first skin comprising: a first fabric layer comprising one or more natural fibers and having a weight of from about 50 to about 200 gsm; and a second fabric layer comprising one or more natural fibers and having a weight of from about 50 to about 200 gsm coupled with the first fabric layer. ### Claim 2 (depends on 1) The paddle of claim 1, further comprising a substrate interposed between the core layer and the first skin, the substrate configured to facilitate coupling of the core layer and the first skin. ### Claim 3 (depends on 2) The paddle of claim 2, wherein: the core layer is a honeycomb structure including one or more cells; and the substrate is a non-woven polymeric fabric, the non-woven polymeric fabric configured to prevent a resin from seeping into the one or more cells of the honeycomb structure. ### Claim 4 (depends on 2) The paddle of claim 2, wherein the first fabric layer is a hemp fabric of between 100 and 170 gsm. ### Claim 5 (depends on 2) The paddle of claim 2, wherein the first fabric layer includes a weave pattern that is positioned between −10 degrees and 10 degrees relative to the central axis. ### Claim 6 (depends on 2) The paddle of claim 2, wherein the second fabric layer is a twill flax fabric of between 200 and 300 gsm. ### Claim 7 (depends on 2) The paddle of claim 2, wherein the second fabric layer includes a weave pattern positioned at between −10 degrees and 10 degrees relative to the central axis. ### Claim at position 8 8-12. (canceled) ### Claim 13 (depends on 2) The paddle of claim 2, wherein one or more of the first skin and a second skin comprises at least 6 distinct layers stacked in a helical pattern. ### Claim at position 10 14-30. (canceled) ### Claim 31 (depends on 1) The paddle of claim 1, wherein the first skin and a second skin are formed of the same materials. ### Claim 32 (depends on 1) The paddle of claim 1, wherein the first skin and a second skin are formed of different materials. ### Claim 33 (depends on 3) The paddle of claim 3, wherein a nonwoven substrate is located between the first skin and the core layer. ### Claim 34 (depends on 3) The paddle of claim 3, wherein a nonwoven substrate is located between a second skin and the core layer. ### Claim 35 (depends on 33) The paddle of claim 33, wherein the nonwoven substrate comprises a polymeric material. ### Claim 36 (depends on 33) The paddle of claim 33, wherein the nonwoven substrate comprises a polypropylene or polyester material. ### Claim at position 17 37-40. (canceled) ### Claim 41 (depends on 1) The paddle of claim 1, wherein the first fabric layer, the second fabric layer, or both comprise a plain weave hemp having a density of at least about 120 g/cm2, but less than about 150 g/cm2. ### Claim 42 (depends on 3) The paddle of claim 3, wherein the first fabric layer, the second fabric layer, or both include a unidirectional weave. ### Claim 43 (depends on 2) The paddle of claim 2, wherein the first fabric layer, the second fabric layer, or both includes a bidirectional weave having threads extending in a first x-direction and having threads extending in a first y-direction. ### Claim 44 (depends on 2) The paddle of claim 2, wherein the first fabric layer, the second fabric layer, or both include a +45/−45-degree weave, where the first x-direction is substantially perpendicular to the first y-direction. ### Claim 45 (depends on 2) The paddle of claim 2, wherein the first fabric layer, the second fabric layer, or both include a 90/0-degree weave. ### Claim at position 23 46-65. (canceled) ### Claim 66 A sandwich panel comprising: a first composite skin comprising: a first fabric layer having flax fibers, the first fabric layer having an areal weight of between 200 and 300 grams per square meter, inclusive; a second fabric layer having hemp fibers, the second fabric having an areal weight of between 100 and 200 grams per square meter, inclusive; a second composite skin comprising; a third fabric layer having flax fibers, the third fabric layer having an areal weight of between 200 and 300 grams per square meter, inclusive; a fourth fabric layer having hemp fibers, the fourth fabric having an areal weight of between 100 and 200 grams per square meter, inclusive; and a core structure interposed between and coupled to both the first composite skin and the second composite skin. ### Claim at position 25 67-81. (canceled)