Thermo-Moldable Protective Gear for High-Impact Sports and Athletic Application
Patent Information
- Application Number
- US19/403851
- Authority / Receiving Office
- US · United States
- Patent Type
- Applications(United States)
- Current Assignee / Owner
- Priority Date
- 2025-03-03
- Filing Date
- 2025-11-29
- Publication Date
- 2026-09-03
AI Technical Summary
[0002]The present invention is directed to a thermo-moldable protective apparatus for use in high-impact athletic activities, wherein the apparatus comprises a specialized thermo-responsive polymeric material that, upon exposure to an external heat source, transitions to a malleable state to conform precisely to the anatomical structure of a user. Upon cooling, the material solidifies into a durable, structurally stable configuration that maintains its customized fit, thereby enhancing protective efficacy, wearer comfort, and mobility. The invention is particularly suited for, but not limited to, applications such as knuckle guards for combat sports, shin guards for contact sports, and thermo-moldable insoles for both athletic and conventional footwear. The disclosed protective apparatus overcomes critical deficiencies associated with conventional protective gear, including lack of anatomical adaptability, material fatigue due to repeated impact cycles, and suboptimal energy dissipation properties.
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Abstract
Description
BACKGROUND OF THE INVENTIONField of Invention
[0001] The present invention relates to the field of protective sports equipment, specifically to thermo-moldable protective gear designed for athletes engaged in high-impact activities. More particularly, the invention pertains to impact-absorbing guards, including but not limited to, knuckle guards for boxing and martial arts, shin guards for soccer and other contact sports, and thermo-moldable insoles for athletic and conventional footwear. The invention leverages a specialized thermo-responsive polymer composition that allows for anatomical customization, enhanced durability, and superior energy dissipation compared to traditional foam, gel, or rigid plastic protectors.BRIEF SUMMARY OF THE INVENTION
[0002] The present invention is directed to a thermo-moldable protective apparatus for use in high-impact athletic activities, wherein the apparatus comprises a specialized thermo-responsive polymeric material that, upon exposure to an external heat source, transitions to a malleable state to conform precisely to the anatomical structure of a user. Upon cooling, the material solidifies into a durable, structurally stable configuration that maintains its customized fit, thereby enhancing protective efficacy, wearer comfort, and mobility. The invention is particularly suited for, but not limited to, applications such as knuckle guards for combat sports, shin guards for contact sports, and thermo-moldable insoles for both athletic and conventional footwear. The disclosed protective apparatus overcomes critical deficiencies associated with conventional protective gear, including lack of anatomical adaptability, material fatigue due to repeated impact cycles, and suboptimal energy dissipation properties.
[0003] The thermo-moldable protective apparatus disclosed herein further exhibits enhanced impact absorption and redistribution characteristics by employing a hybrid structural composition that integrates a flexible core with a more rigid outer layer. Unlike conventional foam-based, gel-based, or rigid plastic protectors, which degrade over time or impose mobility constraints, the present invention maintains its structural integrity and protective capabilities even after repeated use and remolding. The material composition is further formulated to resist odor absorption, thereby mitigating hygiene-related concerns commonly associated with sports protective equipment. The molding process is designed for ease of use, with microwave heating being the preferred embodiment for activation, though alternative heating methods may be utilized. By offering a scalable, customizable, and multi-application protective solution, the invention represents a significant advancement in the field of sports safety equipment.
[0004] In one embodiment, the apparatus is activated via microwave heating, allowing for rapid and uniform thermo-molding without requiring specialized equipment. Alternative heating methods, including convection heating, infrared radiation, and immersion in a heated fluid medium, may also be employed. The invention further integrates antimicrobial and odor-resistant properties, reducing bacterial accumulation and maintaining long-term hygiene. The apparatus is applicable to various protective equipment, including but not limited to knuckle guards, shin guards, thermo-moldable insoles, and other high-impact sports gear. By offering a reconfigurable, multi-application protective solution, the present invention establishes a significant advancement in the field of athletic safety equipment.BRIEF DESCRIPTION OF THE FIGURES
[0005] FIG. 1A is a front elevation view of the thermo-moldable protective apparatus in its unmolded state for the left hand.
[0006] FIG. 1B is a front elevation view of the thermo-moldable protective apparatus in its unmolded state for the right hand.
[0007] FIG. 1C is a rear elevation view of the thermo-moldable protective apparatus in its unmolded state for the left hand.
[0008] FIG. 1D is a rear elevation view of the thermo-moldable protective apparatus in its unmolded state for the right hand.
[0009] FIG. 2A is a front perspective view of a user's clenched first showing the protective apparatus positioned above the knuckles prior to molding.
[0010] FIG. 2B is a top plan view of the user's clenched first illustrating the placement of the unmolded apparatus in alignment with the knuckle contours.
[0011] FIG. 4 is a perspective view showing the protective apparatus placed within a microwave appliance for thermal activation.
[0012] FIG. 5 is a schematic outline of a human palm indicating measurement and alignment zones for sizing the protective apparatus.
[0013] FIG. 6 is a perspective view showing the molding procedure, wherein the user applies compressive force to the heated apparatus for anatomical conformity.
[0014] FIG. 7 is a frontal view of a clenched first wearing the custom-molded protective apparatus after the thermo-molding process.
[0015] FIG. 8 is a frontal view of a clenched first wearing a competitor or conventional protective device showing reduced anatomical conformity.
[0016] FIG. 9 is a side profile view of a clenched first wearing a competitor or generic protector lacking ergonomic conformity.
[0017] FIG. 10A is a front view of the protective apparatus in its pre-molded state for the left hand.
[0018] FIG. 10B is a front view of the protective apparatus in its pre-molded state for the right hand.
[0019] FIG. 10C is a front view of the same protective apparatus after anatomical molding to the left hand.
[0020] FIG. 10D is a front view of the same protective apparatus after anatomical molding to the right hand.
[0021] FIG. 11A is a cross-sectional side view of the user's hand wearing the invention, illustrating layered conformance over the knuckles.
[0022] FIG. 11B is a cross-sectional side view of the user's hand wearing a competitor device, illustrating reduced contact and inferior anatomical fit.DETAILED DESCRIPTION
[0023] The present invention is directed to a thermo-moldable protective apparatus for use in high-impact and contact sports, wherein the apparatus comprises a specialized thermo-responsive polymeric composite material engineered to provide anatomically conforming, high-impact energy absorption properties while maintaining long-term structural integrity and flexibility. The apparatus, upon exposure to an external thermal stimulus, transitions into a moldable state, allowing for direct customization to the user's anatomical structure, and subsequently re-solidifies into a durable, shape-retentive configuration upon cooling.
[0024] This technology addresses and overcomes critical limitations inherent in conventional protective gear, including insufficient fit customization, suboptimal energy dissipation, material degradation over time, and odor retention due to microbial absorption. The disclosed protective system is particularly applicable, but not limited, to the development of knuckle guards for combat sports, shin guards for contact sports, thermo-moldable insoles for athletic footwear, and other protective devices requiring customized fit and impact resistance.
[0025] The core structural component of the invention comprises an advanced thermoplastic elastomer (TPE) matrix, optionally modified with viscoelastic polymers, cross-linked polyurethane foams, and impact-modifying copolymers, providing an optimized balance between elasticity, rigidity, and shock dissipation. The TPE matrix is further reinforced with dispersed nanoparticles selected from, but not limited to, silica, carbon nanotubes, graphene oxide, or other high-strength nano-additives to enhance mechanical properties such as Young's modulus, tensile strength, and fatigue resistance.
[0026] The formulation incorporates phase-change polymeric additives that regulate the material's glass transition temperature (Tg) to ensure efficient thermo-molding within a controlled temperature range, typically between 50° C. and 90° C., depending on the specific embodiment and intended application. This temperature range is selected to allow user-friendly customization without compromising the molecular stability of the material under standard operational conditions.
[0027] The polymeric matrix is further characterized by a dual-phase morphology, wherein a semi-crystalline thermoplastic phase provides structural integrity and impact resistance, while an amorphous elastomeric phase facilitates flexibility and dynamic energy absorption. The semi-crystalline regions exhibit a high degree of molecular orientation, improving tensile strength and wear resistance, whereas the amorphous phase allows for efficient dissipation of kinetic energy upon impact, reducing localized stress concentrations that could otherwise lead to injury.
[0028] The material further incorporates a network of hydrogen bonds and van der Waals interactions, enabling reversible plastic deformation under controlled heating conditions, thereby allowing multiple cycles of re-molding without significant degradation of mechanical properties.
[0029] In one preferred embodiment, the thermo-moldable material comprises a blend of polycaprolactone (PCL), a biodegradable polyester with a low melting point, and thermoplastic polyurethane (TPU), which enhances elasticity and resilience. The PCL component provides a tunable melting range, allowing for precise molding at user-safe temperatures, while the TPU phase improves flexibility and impact resistance. Optionally, cross-linking agents or compatibilizers, such as maleic anhydride-grafted polymers or silane coupling agents, may be introduced to improve interfacial adhesion between polymer phases, further optimizing mechanical robustness and longevity. The impact-absorbing properties of the disclosed material are engineered through a hierarchical cellular microstructure comprising both open- and closed-cell foam architectures. The closed-cell regions function as primary impact dissipators by compressing under force and subsequently recovering their original shape, thereby minimizing the risk of structural collapse due to repeated loading cycles.
[0030] The open-cell domains, in contrast, contribute to energy dissipation by allowing controlled air compression and release, thereby reducing peak force transmission to the underlying anatomical structures. Additionally, the cellular microstructure is designed to exhibit tunable porosity gradients, allowing for spatially varying mechanical properties tailored to different anatomical regions requiring variable impact protection levels.
[0031] The invention further integrates an antimicrobial and odor-resistant surface treatment, wherein the polymeric composition is functionalized with antimicrobial agents such as silver nanoparticles, quaternary ammonium compounds, or zinc-based biocides. These additives are embedded within the polymer matrix through covalent grafting or dispersion, preventing microbial colonization and odor formation. This feature is particularly advantageous in athletic applications where prolonged exposure to perspiration and moisture often leads to bacterial proliferation and subsequent odor retention in conventional protective gear.
[0032] The molding process of the protective apparatus is facilitated through a heat-activation mechanism that allows the user to customize the fit of the device with minimal external equipment. In a preferred embodiment, the thermo-moldable material is activated using microwave radiation, wherein dielectric heating induces molecular excitation within polar components of the polymer matrix, thereby raising the temperature uniformly throughout the material.
[0033] The dielectric loss factor (ε″) of the polymeric composition is optimized to ensure efficient energy absorption in the microwave spectrum, minimizing heating inconsistencies and reducing processing time. Alternative heating methods may include resistive heating elements embedded within the protective apparatus, convection-based thermal treatment, or immersion in a controlled-temperature fluid medium, all of which fall within the scope of the present invention.
[0034] Upon achieving the molding temperature, the softened apparatus is applied to the targeted anatomical region, conforming to the user's unique morphology through mechanical pressure and body heat. Once shaped, the material undergoes rapid cooling, solidifying into a permanent, customized fit. The cooling rate is controlled by the thermal conductivity (k) of the material, ensuring uniform phase transition without inducing thermal stress or microstructural defects. In one embodiment, the cooling phase is accelerated using passive air convection or an active cooling mechanism such as phase-change cooling gels embedded within the polymer matrix.
[0035] The durability and longevity of the thermo-moldable protective apparatus are further enhanced by its resistance to viscoelastic creep and plastic deformation under sustained stress conditions. Traditional foam-based protectors suffer from permanent compression set after repeated impacts, leading to diminished protective performance over time. In contrast, the disclosed material exhibits a high recovery ratio due to its elastic and viscoelastic properties, allowing it to withstand multiple impact cycles without significant loss of energy absorption capability. Mechanical fatigue testing conducted under ASTM D3574 (Standard Test for Flexible Cellular Materials) confirms that the thermo-moldable material retains over 90% of its original impact absorption capacity after 100,000 compression cycles, significantly outperforming conventional protective foams and gels.
[0036] The invention further contemplates various modifications and alternative embodiments, including but not limited to, variations in polymer composition, reinforcement additives, and processing techniques. The protective apparatus may be fabricated in multiple thicknesses and densities to accommodate different levels of impact exposure, and the shape may be pre-configured into various geometries optimized for specific anatomical regions. Additionally, surface texturing and patterning techniques, such as laser etching or compression molding, may be employed to enhance grip, aerodynamics, or integration with existing athletic equipment.
[0037] By integrating advanced material science principles with user-customizable functionality, the present invention represents a transformative advancement in the field of protective sports equipment. The disclosed thermo-moldable apparatus provides a superior alternative to traditional foam, gel, or rigid plastic protectors by offering a tailored anatomical fit, superior impact absorption, long-term durability, and odor resistance. The technology is particularly beneficial for professional athletes and high-performance sports applications, where both protection and ergonomic optimization are critical.
[0038] Furthermore, the modular and reconfigurable nature of the invention enables adaptation across multiple disciplines, including but not limited to, combat sports, field sports, extreme sports, and potential applications in medical rehabilitation and occupational safety. Accordingly, the present invention establishes a novel paradigm in personalized protective gear, ensuring that users benefit from enhanced safety, comfort, and performance longevity.DETAILED DESCRIPTION OF FIGURES
[0039] FIG. 1A through 1D illustrate the thermo-moldable protective apparatus in its pre-molded, unheated state. FIG. 1A shows a front elevation view of the left-hand configuration of the protective device, while FIG. 1B shows a corresponding front elevation view of the right-hand configuration. FIG. 1C and FIG. 1D depict the rear elevation views of the left-hand and right-hand configurations, respectively. As shown, the apparatus comprises a generally rectangular body composed of a thermo-responsive polymer matrix, the external surface of which remains featureless prior to anatomical molding. The material is shown in its undeformed state, lacking topographical relief or user-specific anatomical conformations. These views collectively establish the unmodified condition of the apparatus prior to user engagement with the heating and molding process.
[0040] FIGS. 2A and 2B depict the pre-molding alignment of the protective apparatus relative to the user's clenched fist. FIG. 2A presents a frontal perspective view of the user's hand in a closed-fist configuration, showing the unmolded apparatus suspended above the dorsal surface of the knuckles in preparation for placement. FIG. 2B provides a top plan view of the same configuration, illustrating the geometric relationship between the protector and the anatomical ridges of the user's knuckles. These figures serve to demonstrate the proper positioning of the apparatus to ensure optimal anatomical registration during the thermo-molding phase.
[0041] FIG. 4 illustrates the heating procedure by which the thermo-moldable material is activated. The figure shows the protective apparatus placed within a conventional microwave heating device, with a user's hand interacting with the control interface to initiate the heating cycle. The protector is positioned centrally on the microwave's rotating platform. Upon exposure to microwave radiation, dielectric heating causes the polymer matrix to enter a pliable, semi-viscous state suitable for anatomical conformation. This embodiment illustrates the preferred heating method for home-based or field customization without requiring specialized tools or equipment.
[0042] FIG. 5 provides a schematic representation of the user's palm, illustrating an anatomical reference framework for determining the proper sizing and alignment of the protective apparatus. The figure includes peripheral contour lines denoting the boundaries of the palm and internal outlines corresponding to the target knuckle coverage zone. This view is used to assist users in selecting the appropriate apparatus size based on hand morphology, thereby improving ergonomic fit and maximizing protective coverage post-molding.
[0043] FIG. 6 depicts the molding phase of the invention wherein the thermo-activated protective apparatus is applied to the user's dominant hand and shaped by the application of downward compressive force using the opposing hand. The user's hand is presented in a palm-down orientation, with the protector positioned over the knuckles. The non-dominant hand is shown exerting pressure atop the device for a period of approximately one minute, during which time the pliable polymer conforms to the user's knuckle contours. Upon cooling, the apparatus retains this shape, forming a user-specific, anatomically customized protective interface.
[0044] FIG. 7 illustrates a frontal view of a clenched first after successful completion of the thermo-molding process. The figure reveals the post-molded apparatus in its final conforming configuration, wherein the material exhibits anatomical relief features corresponding to individual knuckle contours. The figure demonstrates complete dorsal coverage and seamless alignment with the user's bony prominences, thus ensuring optimal energy dispersion and minimal pressure concentration during impact.
[0045] FIG. 8 shows a frontal view of a clenched first wearing a conventional or competitor protective device, presented for comparative purposes. Unlike the molded apparatus of FIG. 7, the device in FIG. 8 lacks anatomical specificity and appears flat or generically curved, resulting in potential gaps between the protector and the user's knuckles. This illustration is used to highlight the inferior conformability and reduced protective coverage characteristic of standard, non-customizable devices.
[0046] FIG. 9 provides a lateral or side profile view of the same competitor or conventional protector as depicted in FIG. 8. This figure emphasizes the lack of ergonomic conformance along the hand's dorsal and lateral planes, indicating suboptimal distribution of impact forces and an increased likelihood of edge pressure or lateral slippage during athletic activity.
[0047] FIG. 10A through 10D present a comparative sequence showing the transformation of the protective apparatus from an unmolded to a molded configuration. FIGS. 10A and 10B illustrate the left-hand and right-hand versions of the protector in the unmolded state, respectively, with flat and uniform surfaces devoid of anatomical detail. FIGS. 10C and 10D show the same protectors after having undergone the thermo-molding process, now exhibiting distinct depressions and ridges corresponding to individual knuckles and interphalangeal spaces. These post-molding figures demonstrate the high-resolution anatomical fidelity achieved through the material's heat-induced plasticity and its ability to retain molded geometry upon cooling.
[0048] FIGS. 11A and 11B provide cross-sectional side views of the user's hand with the invention and with a competitor product, respectively. FIG. 11A shows the molded protector conforming intimately to the curvature of the dorsal knuckle region, with multiple layers of material forming a continuous protective barrier that adheres tightly to the underlying anatomy. In contrast, FIG. 11B shows a competitor or generic protector whose contact with the knuckle is partial or inconsistent, with visibly segmented or non-contiguous internal structures. The illustrated discontinuities highlight reduced coverage and structural inefficiencies of conventional protective solutions.
Examples
Embodiment Construction
[0023]The present invention is directed to a thermo-moldable protective apparatus for use in high-impact and contact sports, wherein the apparatus comprises a specialized thermo-responsive polymeric composite material engineered to provide anatomically conforming, high-impact energy absorption properties while maintaining long-term structural integrity and flexibility. The apparatus, upon exposure to an external thermal stimulus, transitions into a moldable state, allowing for direct customization to the user's anatomical structure, and subsequently re-solidifies into a durable, shape-retentive configuration upon cooling.
[0024]This technology addresses and overcomes critical limitations inherent in conventional protective gear, including insufficient fit customization, suboptimal energy dissipation, material degradation over time, and odor retention due to microbial absorption. The disclosed protective system is particularly applicable, but not limited, to the development of knuckle...
Claims
1. A thermo-moldable protective apparatus for use in high-impact athletic activities, comprising:a. a polymeric composite material that transitions from a solid state to a moldable state upon exposure to a predetermined heating stimulus and subsequently re-solidifies upon cooling;b. a structural matrix comprising a blend of thermoplastic elastomers and viscoelastic polymers, wherein said matrix exhibits impact absorption and shape-retention properties; andc. a molding mechanism configured to enable user-specific anatomical customization by allowing the apparatus to conform to a user's body shape when in said moldable state.
2. The thermo-moldable protective apparatus of claim 1, wherein the polymeric composite material comprises a thermoplastic elastomer selected from the group consisting of thermoplastic polyurethane (TPU), polycaprolactone (PCL), styrene-ethylene-butylene-styrene (SEBS), ethylene-vinyl acetate (EVA), and combinations thereof.
3. The thermo-moldable protective apparatus of claim 1, wherein the polymeric composite material further comprises impact-modifying agents selected from the group consisting of carbon nanotubes, graphene oxide, silica nanoparticles, or elastomeric microspheres to enhance energy dissipation and mechanical durability.
4. The thermo-moldable protective apparatus of claim 1, wherein the molding mechanism is activated via microwave heating, wherein dielectric heating induces uniform molecular excitation within the polymer matrix to achieve a controlled thermal transition.
5. The thermo-moldable protective apparatus of claim 4, wherein the polymeric matrix comprises polar functional groups optimized for microwave energy absorption, thereby facilitating rapid and uniform heat distribution throughout the apparatus.
6. The thermo-moldable protective apparatus of claim 1, wherein the molding mechanism is activated by an alternative heating method selected from the group consisting of convection heating, infrared radiation, resistive heating, or immersion in a heated fluid medium.
7. The thermo-moldable protective apparatus of claim 1, wherein the structural matrix comprises a dual-phase morphology with a semi-crystalline thermoplastic phase providing rigidity and an amorphous elastomeric phase facilitating impact absorption.
8. The thermo-moldable protective apparatus of claim 1, wherein the polymeric composite material is formulated to exhibit a glass transition temperature (Tg) within the range of 50° C. to 90° C., allowing for safe and user-accessible thermo-molding.
9. The thermo-moldable protective apparatus of claim 1, wherein the polymeric composite material incorporates antimicrobial agents selected from the group consisting of silver nanoparticles, quaternary ammonium compounds, and zinc-based biocides to inhibit microbial growth and odor formation.
10. The thermo-moldable protective apparatus of claim 1, wherein the polymeric composite material comprises a cellular microstructure including both open-cell and closed-cell foam regions, thereby optimizing impact dissipation and shape recovery properties.
11. The thermo-moldable protective apparatus of claim 1, wherein the apparatus is configured as a knuckle guard, shin guard, insole, or other protective equipment for athletic applications.
12. The thermo-moldable protective apparatus of claim 1, wherein the apparatus is configured for repeated thermo-molding cycles without significant degradation of mechanical or structural properties.
13. A method of customizing a thermo-moldable protective apparatus for a user, the method comprising:a. heating a polymeric composite material until it transitions into a moldable state;b. applying the softened material to a user's targeted body region, allowing it to conform to the user's anatomical structure;c. allowing the material to cool and solidify into a customized shape; andd. using the customized protective apparatus for impact absorption and injury prevention during athletic activities.
14. The method of claim 13, wherein heating is achieved via microwave radiation, convection heating, infrared radiation, resistive heating, or immersion in a heated fluid medium.
15. The method of claim 13, wherein the polymeric composite material comprises thermoplastic elastomers and impact-modifying nanoparticles, providing durability and enhanced energy dissipation.
16. The method of claim 13, further comprising re-heating and re-molding the apparatus multiple times without significant loss of structural integrity.
17. A thermo-moldable protective system comprising:a. a protective apparatus according to claim 1; andb. an integrated heating mechanism configured to facilitate molding of the apparatus without requiring external heating sources.
18. The thermo-moldable protective system of claim 17, wherein the integrated heating mechanism comprises an embedded resistive heating element capable of selectively activating the thermo-moldable state of the apparatus.
19. The thermo-moldable protective system of claim 17, wherein the integrated heating mechanism comprises a self-contained chemical heating pack designed to release controlled thermal energy upon activation.
20. The thermo-moldable protective system of claim 17, wherein the system further includes a cooling element to accelerate solidification of the customized protective shape.