Category: Sports & Outdoors

Movement, gear, and nature experiences

  • FrykenFrost™ – surface cooling system

    A mobile cooling machine mounted on pontoons gliding over a calm water surface, designed for environmental cleanup and marine applications.

     Beyond Land: The Mobile Solution for Water, Oil, and Algae

    Headline: The Floating Freezer: Using Mobile Cooling Technology for Environmental Cleanup and Marine Ice Block Construction. See Product Detailsin our Products section. Read about our company’s background and goals on the About page.

    Introduction: The cooling machine’s potential extends far beyond ski trails and roads. The patent describes a version mounted on pontoons, ready to tackle environmental challenges, from oil spills at sea to large-scale algae blooms and melting glaciers.

    Addressing Surface Water Challenges: Traditional cleanup methods for environmental disasters in water can be messy, slow, and labor-intensive. The cooling machine offers a novel, portable solution.

    • Pontoon Design: The device can be fitted with pontoons (friction members) for use on open water or shallow water. The cooling unit is versatile for different terrains, including water surfaces.
    • Controlling Contaminants: The pontoon version can be used to control algae blooms or to freeze chemicals and oil spills on the water surface (or from oil sands on land) for easier collection and cleanup. Freezing the contaminant solidifies it, preventing evaporation of hazardous gases and simplifying the recovery process.
    • Marine Ice Block Construction: The machine can accelerate the freezing of ice roads on lakes or even manufacture large ice blocks, for example, along a beach threatened by an oil spill to create a temporary barrier.

    Operational Versatility: The machine’s ability to operate in various modes makes it ideal for these demanding marine applications:

    • Remote Control: The unit can be designed to be completely remote-controlled and monitored wirelessly from a control center, essential when dealing with hazardous materials or large bodies of water.
    • Safety First: It is equipped with systems like thermal sensors and laser light to warn the surroundings, especially red laser light that illuminates a “no-entry” zone in the immediate vicinity.

    Conclusion: From preserving nature (preventing drainage into water sources ) to large-scale cleanup after environmental accidents, the mobile cooling machine offers a powerful, targeted, and cost-effective method for controlling and solidifying liquid matter on land and sea with year-round potential.

    Final Thought
    FrykenFrost™ demonstrates how targeted surface cooling can contribute to climate resilience and environmental protection. By combining innovative engineering with practical application, it highlights the importance of solutions that complement emissions reductions and broader planetary strategies.


    Technical Specification – Cryogenic Cooling Module for Ski Tracks and Winter Surfaces

    (With Integrated Analysis of Chamber Length, Heat Transfer, and Operational Speed)

    1. System Overview

    The cooling machine is a ground-interfacing, sealed cryogenic module designed for rapid cooling and surface freezing of highly compressed snow and soil. The system operates by expanding Liquid Nitrogen ($LN_2$) into gas within a sealed chamber gliding directly against the substrate. Controlled overpressure and forced gas circulation ensure maximum heat extraction and uniform surface freezing, even in wet conditions and positive ambient temperatures.

    2. Mechanical Construction

    • Frame: Aluminum or stainless steel, dimensioned for thermal gradients from –180°C to +5°C.
    • Runners/Skis: Dual longitudinal runners for primary contact, side sealing, and preventing gas lift. Material: UHMW-PE or anodized aluminum.
    • Flexible Seals: Spring-loaded front and rear hatches follow the terrain. Internal curtains and profile-adapted seals for classic ski tracks ensure minimal gas leakage without deforming track geometry.

    3. Cryogenic Cooling System

    • Medium: Liquid Nitrogen ($LN_2$), boiling point –196°C. Effective cooling capacity: $\approx 300\text{ kJ/kg}$.
    • Expansion: Pressure-regulated distribution (2–5 bar) with multiple expansion nozzles directed at baffle plates to ensure full gas phase before snow contact.
    • Circulation: High-velocity axial fans create a forced flow (downwards at the front, horizontal across the surface, upwards at the rear) to eliminate the Leidenfrost effect.
    • Pressure Control: Operating overpressure of 20–200 Pa to prevent warm air ingress.

    4. Thermal Performance & Consumption

    Reference Case: Compressed snow, density $500\text{ kg/m}^3$, Temp $+1^\circ\text{C}$, 30% liquid water content.

    4.1 Energy Requirements ($Q_{tot}$)

    • Scenario A (Deep Stabilization, 20 mm): $\approx 783\text{ MJ/km}$ ($783\text{ kJ/m}$)
    • Scenario B (Surface Hardening, 7 mm): $\approx 274\text{ MJ/km}$ ($274\text{ kJ/m}$)

    4.2 Nitrogen Consumption ($m_{N2} = Q_{tot} / q_{N2}$)

    • Scenario A: $\approx 2,600\text{ kg/km}$ (Cost: approx. $1,000\text{–}1,300\text{ USD/km}$)
    • Scenario B: $\approx 915\text{ kg/km}$ (Cost: approx. $350\text{–}450\text{ USD/km}$)

    5. Speed and Efficiency Analysis

    The relationship between cooling power ($P$) and speed ($v$) is defined as: $v = P / Q_{per\_meter}$.

    DepthLN2​ FlowCooling PowerSpeed (5 m unit)Time per km
    20 mm45 kg/min~225 kW~1.0 km/h60 min
    7 mm45 kg/min~225 kW~3.0 km/h20 min

    Note: Increasing chamber length to 10 m doubles the speed capacity ($v \propto L_c$).

    6. Thermodynamics of the Chamber Length

    The cooling performance is determined by contact time ($t_{exp}$) and contact area ($A$).

    • Contact Time: $t_{exp} = L_c / v$
    • Heat Transfer: $P_{max} \approx h \cdot b \cdot L_c \cdot \Delta T$(where $h = 200\text{ W/m}^2\text{K}$ for forced convection)

    A minimum chamber length of 5 meters is recommended to achieve operational speeds of 1–3 km/h while ensuring uniform hardness across the 1.5 m width.

    7. Logistics and Implementation

    • Towing Vehicle: The choice of prime mover (tractor, snow groomer, or utility vehicle) should be scaled to the nitrogen load and track length.
    • Standardization: The module utilizes standard mechanical hitches and vehicle power take-offs (electrical or hydraulic) for fan operation.
    • Environment: Nitrogen is inert and eco-friendly, returning to the atmosphere (78% $N_2$) without chemical residue or salt damage.

    8. Summary

    The cooling machine acts as a mobile cryogenic heat exchanger. This mathematical proof confirms that the system can effectively “flash-freeze” wet surfaces into a durable ice matrix at industrial speeds. It offers a superior, sustainable alternative to chemical salting for professional sports and winter infrastructure.


    Surface cooling technologies like FrykenFrost™ highlight how innovation can support winter sports and climate adaptation. To strengthen resilience, these solutions should be connected to broader discussions on sustainability and planetary protection.

    External References

    Further Reading:

  • The Future of Winter Sports: FrykenFrost™ – Race-Ready Snow Guaranteed

    A snow grooming vehicle labeled 'GOLDEN MOSQUITO' operates on a snowy trail surrounded by trees, creating a cloud of snow while preparing the surface for ski competitions.

    The Cold Revolution: How FrykenFrost™ snow technology and Mobile Freezing Technology is Securing the Future of Ski Competitions. Visit our About page or Sitemap / Link Page to explore all Golden Mosquitos posts and projects

    Milder winters and uncertain snow conditions threaten major ski events globally. Organizers face huge financial risks and logistical nightmares if races are cancelled or conditions are unfair. The traditional method of storing and transporting massive snow piles is labor-intensive and costly. But what if you could treat and freeze existing snow and wet trails on demand?

    The Problem with Today’s Snow Management: Conventional cooling methods, like spraying liquid nitrogen directly onto the surface, are incredibly inefficient and consume massive amounts of coolant—up to 100,000 liters of gas per 100 meters in some older methods. This is primarily because the cold gas mixes and blows away almost instantly.

    A Patented Solution: The Sealed Cooling Machine (The Ice-Maker on Skis): The innovative mobile cooling machine (Patent SE 542 647 C2) solves this by creating a sealed unit with the surface being treated.

    • Encapsulation for Efficiency: The core innovation is a moving machine that forms a tightly sealed enclosure around the treatment area using insulating members and blades. This simple sealing mechanism dramatically traps the refrigerated air (from dry ice, liquid nitrogen, or carbon dioxide).
    • Cost Minimization: By containing the cold air and creating a higher air pressure inside the unit, the consumption of expensive coolant is optimized and minimized. This makes on-demand trail freezing economically viable.
    • Precision and Quality Control: The FrykenFrost™ snow technology system uses internal temperature and air pressure sensors to continuously monitor conditions within the sealed area. A central controller automatically regulates the flow of refrigerant (via a gas tap) to ensure the precise, optimal temperature and pressure are maintained, guaranteeing a consistently frozen and high-quality trail.

    Conclusion: This technology offers a reliable, cost-effective, and environmentally friendly way for ski resorts to secure their event calendars and provide fair, rock-solid racing conditions, regardless of uncooperative weather. The future of winter sports is here, and it’s sealed, measured, and perfectly cold.

    Snow reliability is becoming a critical issue for winter sports. Innovative solutions like FrykenFrost™ show how technology can adapt to climate challenges, but they must be connected to broader discussions on sustainability and planetary protection.


    TECHNICAL PROOF-OF-CONCEPT: Cryogenic Cooling Module for Surface Freezing

    Patent Status: CA2993889A, NO337419B1, SE542647C2.

    Application: Rapid stabilization and surface freezing of ski tracks, winter roads, and competition surfaces.

    1. Executive Summary

    This document provides the mathematical and thermodynamic validation for a patented cryogenic cooling system. By utilizing liquid nitrogen ($LN_2$) in a sealed, ground-interfacing chamber with forced convection, the system extracts heat at a rate significantly higher than ambient cooling. The primary innovation lies in the elimination of the gas-insulating layer (Leidenfrost effect) and the use of the ground as the “sixth wall” of the cooling box.


    2. Thermodynamic Assumptions and Variables

    To establish a performance baseline, the following parameters are used:

    • Substrate: Compressed wet snow (density $\rho = 500\text{ kg/m}^3$).
    • Initial Conditions: Snow temp $+1^\circ\text{C}$, liquid water content 30%.
    • Target: Cooling to $0^\circ\text{C}$ and freezing 50% of the liquid water content.
    • Module Dimensions: Width ($b$) = $1.5\text{ m}$, Length ($L_c$) = $5\text{ m}$.
    • Cooling Medium: Liquid Nitrogen ($LN_2$) at $-196^\circ\text{C}$.
    • Effective Cooling Capacity ($q_{N2}$): $\approx 300\text{ kJ/kg}$ (latent heat + sensible heat).

    3. Energy Extraction Requirements ($Q_{tot}$)

    The energy required depends on the target depth of the ice matrix.

    Scenario A: Deep Stabilization ($20\text{ mm}$ depth)

    For $1\text{ km}$ ($30\text{ m}^3$ of snow):

    • Sensible heat: $31.5\text{ MJ}$
    • Latent heat (freezing): $751.5\text{ MJ}$
    • Total Energy ($Q_A$): $\mathbf{783\text{ kJ/m}}$

    Scenario B: Surface Hardening ($7\text{ mm}$ depth)

    For $1\text{ km}$ ($10.5\text{ m}^3$ of snow):

    • Sensible heat: $11.0\text{ MJ}$
    • Latent heat (freezing): $263.0\text{ MJ}$
    • Total Energy ($Q_B$): $\mathbf{274\text{ kJ/m}}$

    4. Nitrogen Consumption and Operating Cost

    $$m_{N2} = \frac{Q_{tot}}{q_{N2}}$$

    • Scenario A: $\approx 2\,610\text{ kg per km}$ ($\approx 3\,260\text{ liters/km}$)
    • Scenario B: $\approx 913\text{ kg per km}$ ($\approx 1\,140\text{ liters/km}$)

    Estimated Cost: $400\text{–}1,300\text{ USD/km}$ depending on depth and local $LN_2$ pricing.


    5. Operational Speed Analysis

    The speed ($v$) is determined by the heat transfer power ($P$) divided by the energy requirement per meter ($Q$).

    5.1 Heat Transfer Power ($P$)

    Utilizing forced convection ($h = 200\text{ W/m}^2\text{K}$) and a temperature gradient ($\Delta T = 150\text{ K}$):

    $$P = h \cdot A \cdot \Delta T$$

    $$P = 200 \cdot (1.5 \cdot 5) \cdot 150 = \mathbf{225\,000\text{ W (225 kW)}}$$

    5.2 Speed Calculations ($v = P / Q$)

    Scenario A (Deep Stabilization – 20 mm):

    $$v = \frac{225\text{ kJ/s}}{783\text{ kJ/m}} \approx 0.28\text{ m/s} \approx \mathbf{1.0\text{ km/h}}$$

    Scenario B (Surface Hardening – 7 mm):

    $$v = \frac{225\text{ kJ/s}}{274\text{ kJ/m}} \approx 0.82\text{ m/s} \approx \mathbf{3.0\text{ km/h}}$$

    Note: Increasing chamber length ($L_c$) to $10\text{ m}$ doubles these speeds to $2.0\text{ km/h}$ and $6.0\text{ km/h}$ respectively.


    6. Implementation and Logistics

    The unit is designed as a modular attachment for standard heavy-duty machinery (tractors or snow groomers).

    • Mechanical Integration: The module interfaces with standard prime movers via standard towing hitches.
    • Power Supply: Internal circulation fans are powered via the vehicle’s standard electrical or hydraulic take-offs.
    • Load Management: The towing vehicle’s capacity should be matched to the $LN_2$ tank size required for the specific track length.

    7. Conclusion

    This mathematical proof confirms that the system is highly effective for both deep structural stabilization and rapid surface hardening. The use of forced convection ensures that cooling is delivered at industrial speeds, providing a reliable, salt-free alternative for professional winter sports and transport.

    External References

    A cartoon mosquito character wearing a cowboy hat and boots, with the text 'GOLDEN MOSQUITO LLC' below it.
  • FrykenStaven™: Reinforced Ski Pole with Optimized Performance

    A pair of FrykenStaven™ foam reinforced ski poles lying in the snow.
    FrykenStaven™ — a foam reinforced ski pole developed through a patent-pending method for optimizing strength, weight, and material performance.

    The FrykenStaven™: Increased strength, perfect balance. Visit our About page or Sitemap / Link Page to explore all Golden Mosquitos posts and projects. Brief Summary of our patent-pending ski pole design.

    TECHNICAL FIELD 

    This invention relates to ski equipment, and more specifically, to the design, manufacture, and use of reinforced ski poles, particularly for competitive cross-country and roller skiing. The invention further discloses a method for enhancing ski pole performance by strategically placing foam materials with optimized properties within the pole shaft to achieve zonal reinforcement.

    BACKGROUND OF THE INVENTION

    Competitive cross-country and roller skiing place significant stress on ski poles, frequently leading to breakage. Breakages commonly occur during falls, especially in the middle section of the pole, and multi-skier falls frequently result in broken poles. Traditional ski poles often involve a trade-off between weight and durability. Current reinforcement methods, such as increasing wall thickness or using stronger materials, often increase weight and adversely affect the swing weight, which is crucial for skiing performance.

    Problem Addressed by the Invention

    Elite skiing poles, designed to be lightweight, are particularly vulnerable to impacts from skis and other poles. A reinforcement method is needed that enhances strength and impact resistance without compromising weight or balance.

    Optimization of Ski Pole Selection

    Optimal ski poles can vary between competitions depending on factors such as snow conditions, course length and type, and competition type (mass or individual). A skier’s size, strength, arm length, and skiing style all influence the demands placed on their poles. Therefore, a system for selecting pole properties based on individual skier data and track design would be beneficial.

    PRIOR ART

    Racing ski poles primarily use carbon fibers. Traditional ski poles consist of a circular cross-section hollow shaft, a handle, a basket, and a spike. Designs like those in US Patent No. 5,611,571 (circular cross-section transitioning to a droplet shape) aim to increase rigidity and aerodynamics but can increase weight and instability. European Patent No. 2,308,569 A1 discloses a ski pole with a triangular cross-section, claiming to offer stiffness, high breaking strength, and reduced drag.

    Ski Pole Construction and Reinforcement

    Epoxy resin is commonly used to reinforce ski poles, though it considerably increases their weight. A 1.5 mm layer can almost double the weight of a carbon fiber pole.

    Evaluation of Various Foam Types

    Several types of foam are strong, lightweight, and capable of withstanding loads and low temperatures, making them suitable for forming a foam core in a ski pole. Examples include:

    • Polyurethane Foam (PU Foam): Lightweight, strong, flexible, and available in a wide range of densities (approx. 20-40 g/liter).
    • Polyethylene Foam (PE Foam): Highly light, shock-absorbing, water-resistant, and maintains properties well in freezing conditions (approx. 25-50 g/liter).
    • Expanded Polystyrene (EPS): Lightweight and rigid, though it may become more brittle at very low temperatures (approx. 10-30 g/liter).
    • Foam Resin: Lightweight foam offering high strength and dimensional stability (approx. 15-50 g/liter).
    • Polyisocyanurate Foam (PIR Foam): High heat resistance and excellent insulation capabilities, maintaining strength effectively even at low temperatures (approx. 30-50 g/liter).

    DESCRIPTION OF THE INVENTION

    This invention reinforces ski poles by strategically placing foam materials with optimized predetermined properties within the pole’s shaft. This method improves strength and impact resistance without increasing weight, reducing the risk of buckling and breakage from compression forces and impacts.

    Buckling Analysis

    Buckling occurs when a long, hollow structure, like a ski pole, is subjected to a compressive force exceeding its critical load, leading to sudden deformation. Flexural buckling is the most common type, where the pipe bends sideways due to axial compressive loads.

    Euler’s Buckling Formula is used to determine the critical load at which a ski pole will buckle:

    $$\text{Pcr} = \frac{\pi^2\text{EI}}{(\text{KL})^2}$$

    Where:

    • $\text{Pcr}$ är den kritiska lasten.
    • $\text{E}$ är elasticitetsmodulen (Young’s modulus).
    • $\text{I}$ är tröghetsmomentet.
    • För en cylindrisk ihålig stav med yttre radie R och inre radie r, ges I av: $\text{I} = \frac{\pi (\text{R}^4 – \text{r}^4)}{4}$.
    • $\text{K}$ är knäckningskoefficienten.
    • $\text{L}$ är polens effektiva längd.

    Factors Affecting Buckling Load include the material’s modulus of elasticity, cross-section shape (moment of inertia), length, and end support.

    Measurement Procedure Summary

    The pole is segmented into distinct zones of, for instance, five centimeters each, and each distinct zone undergoes stroke and pressure tests. The material’s failure threshold under compression at a specific pole location is stated in MPa, and impact toughness in J, providing a clear picture of the material’s strength and toughness under different load conditions.

    Test of Skier Requirements for High-Performance Ski Poles

    This method uses skier-evaluated data and defines competition-specific requirements. Individual skier test data, including arm strength, body height, weight, length, poling style, competition type, and fitness level, serve as input parameters to predict the forces and loads on the ski pole. Each pole zone is assigned a minimum stiffness value based on the skier’s needs, and if multiple foam types/densities meet requirements, the lightest option is selected.

    Foam Classification

    Foam materials are classified by their properties, including stiffness, flexibility, shock and vibration resistance, cold resistance, and weight. A five-point scale categorizes stiffness (1: Very Soft to 5: Very Stiff) to aid in selecting optimal foam for each ski pole zone. Stiffness values of 4 or higher are typically preferred for ski poles.

    Foam TypeDensity (kg/m³)Stiffness ValueComments
    PU Foam202Suitable for light cushioning.
    PU Foam303Offers medium cushioning and flexibility.
    PU Foam404Provides firm support for structural use.
    PE Foam251Lightweight with minimal stiffness.
    PE Foam503Balanced stiffness and good shock absorption.
    EPS153Lightweight but slightly fragile.
    EPS305High stiffness, ideal for rigid protection.
    Foam Resin303Good balance of flexibility and stiffness.
    Foam Resin505High stiffness, suitable for heavy-duty applications.

    Methods for Inserting Foam in a Pole Shaft

    The preferred methods include introducing foam along the pole’s length in a prefabricated foam method, or injecting each foam to achieve the desired proportion, and adjusting the foam expansion rate in specific zones. Introducing foam with a nozzle on a hollow rod from inside of the shaft allows for precise placement and helps prevent shaft wall deformation.

    Example Calculation: Amount of Liquid Foam (Expansion factor 20)

    • Pole Volume (V): 78,540 mm³ = $78.54 \text{ cm}^3$ (for a 1-meter pole, 10 mm inner diameter).
    • Liquid foam needed ($\text{V}_{\text{liquid}}$): V / expansion factor = $78.54 / 20 = 3.927 \text{ cm}^3$.

    Example Calculation: Weight of Expanded Foam

    • Foam density: 25 grams per liter (0.025 grams per $\text{cm}^3$).
    • Weight of foam ($\text{m}$): volume $\times$ density = $78.54 \text{ cm}^3 \times 0.025 \text{ g/cm}^3 = 1.9635 \text{ g}$.

    Object of the Invention

    The objective is to provide a ski pole shaft that meets users’ requirements for strength and performance with minimal weight gain and is stiffer and has higher breaking strength than prior art pole shafts. This is achieved by classifying foam types based on weight and performance and implementing zonal reinforcement throughout the ski pole, based on each zone’s requirements and tailored to the skier.

    Automated Foam Injection System

    An automated foam injection system with a single or multi-nozzle injection head is used to achieve precise and consistent foam placement. A robotic drive mechanism moves along the shaft and injects various foam densities at predetermined locations and speeds.

    Key Aspects of the Invention

    The invention involves:

    • Zonal Reinforcement: The hollow pipe is segmented into zones based on desired mechanical properties.
    • Foam Selection: Various foam materials are chosen for each zone according to specific characteristics (e.g., high-density foam for impact resistance).
    • Simultaneous Application: Selected foam materials are preferably introduced simultaneously using a multi-nozzle injection system for precise placement.

    Advantages of the Invention

    • Enhanced Strength and Impact Resistance.
    • Thin walls: The pole material can be made thinner and lighter, but with increased strength with a strong and user-optimized foam core.
    • Targeted Reinforcement.
    • Lightweight Design.
    • Improved Performance: Tailored stiffness, flexural properties, and optimized swing weight.
    • Reduced Risk of Pole Breakage: Foam core maintains structural integrity even with outer casing damage.

    Foam Reinforcement Benefits

    Foam can prevent buckling and kinking, enhancing structural stability and resistance to buckling through several mechanisms:

    • Increased area inertia.
    • Support for pipe walls.
    • Distribution of load.
    • Vibration damping.

    Foam Recommendations

    Based on lightness, dimensional stability, and shock absorption, foam resin or high-density PU foam can be recommended.

    Computer Program Design

    A computer program assists in the analysis, design, and optimization of foam-reinforced ski poles. It uses input data from skiers (arm strength, height, weight, style), analyzes it to determine optimal foam type and density, and generates instructions for the automated injection. The system also incorporates a machine learning module that continually refines the recommendations based on test data and outcomes.

    Innovations like FoamSpine™ show how advanced materials can enhance performance and resilience in winter sports. By connecting this technology to broader sustainability and climate adaptation efforts, we highlight how equipment design is part of the larger conversation about protecting both athletes and the environment.

    External References

    Presented by:

    Logo of Golden Mosquito LLC featuring a cartoon mosquito wearing a cowboy hat and boots, smiling and posed with hands on hips.