Zack FLEISCHMAN, et al.
Sharkwheel
Sharkwheel
https://sharkwheel.com
Description
1. Rough Terrain. The best wheel over rough terrain. The sine wave shape tends to kick pebbles and small objects out of the way. Also, the best wheel over wet conditions. Scientifically proven by San Diego State University, Mechanical Engineering Department.
2. Approach Angle. Shark Wheels perform similar to how drivers intuitively know to go over a speed bump at an angle to reduce the shock in their car. The unique 30-degree approach angle of the Shark Wheel reduces shock and deflects objects due to its approach angle. A normal wheel is a steamroller and tries to go over obstacles in its way. Shark Wheels tend to move around objects.
3. Lasts Longer. Scientifically tested to last up to 50% longer when cruising. Shark Wheel has multiple center points compared to one center point on a traditional wheel. Scientifically proven by San Diego State University, Mechanical Engineering Department. Flatspot resistant.
4. Better Slide Control. The Shark Wheel actually spins as it slides acting like a car's antilock brakes. The 3 lips of the Shark Wheel compared to 1 lip on a traditional wheel give predictable slides. Also, slides are easier to perform due to less surface area in contact with the ground. Less friction to initiate a slide.
5. Lightning Fast. 57% less rolling resistance than a traditional wheel. Scientifically proven by the largest caster company in the world...
https://sharkwheel.com/skate-videos/
https://www.youtube.com/watch?v=nQjrU6nOQiM&t=65s
Shark Wheel Rough Terrain - User Submitted Videos (Snow, Dirt, Pebbles, Mud)
The ability to go over rough terrain is the #1 advantage. The 30 degree approach angle of the Shark Wheel strikes obstacles at an angle and tends to push them left and right out of the way. A traditional wheel acts like a steamroller and tries to go over objects, while Shark Wheels tend to move around them. The angle also reduces shock significantly (think of going over a speed bump in a car an angle to reduce the shock)
https://www.youtube.com/watch?v=ncM5Ly-c9Lk
The Science Behind Shark Wheels // PrintingCenterUSA
PALLET JACK LAST 50% LONGER
In pallet jack/forklift wheels (material handling industry), Shark Wheels last 50% longer because they dissipate heat in a sine wave footprint (the most efficient shape)
CASTERS 57% LESS FRICTION
In casters, Shark Wheels have 57% less friction when in motion making it much easier to push carts, wheelchairs, and other applications that use casters
FARMING -- MINIMIZE TRENCH DIGGING
In farming, Shark Wheels are the only wheels that don ' t continue to go over the same path. So, they significantly minimize trench digging, which costs farmers a lot of money and time to repair. Trenches also lead to the failure of other equipment (gear boxes, drivetrains, etc. ). In the most recent test (funded by the US Government), Shark Wheels dug a 1" trench, while the industry leading wheel dug a 14" trench
There are many more advantages, but those are a few that have been scientifically proven by San Diego State University, Mechanical Engineering Department in 2 years of tests, as well as lab testing and other real world tests. There is a reason Fortune 500 companies, Samsonite, Harley Davidson, NBA, NFL, PGA Tour, MLB, NHL, Olympics and the US Military use products with Shark Wheels.
Farming Wheel
Shark Wheel has won 3 government grants through the National Science Foundation for its irrigation wheel (agriculture). These 3.5 foot tall wheels have shown incredible results. The most recent test was against the industry leading pneumatic wheel (pneumatics make up over 80% of the industry because they mitigate rutting). The pneumatic dug a 14" rut compared to a Shark Wheel's 1" rut on the same tower/same field/same conditions/etc. Although the virtually elimination of rutting is the #1 advantage, here are some others:
FIG
1.Least amount of rutting in the industry (the out of phase wheels push soil toward center unlike a circular wheel - once you see the new design it becomes even more apparent)
2.No flat (Shark Wheels do not have air and cannot go flat)
3.Shark Wheel's design allows crops to grow in the wheel tracks. No other wheel does this to our knowledge. Of course the crop output is significantly diminished in the wheel track, but there is crop nonetheless
4.Non-pneumatic wheels put too much stress on the drivetrain. Shark Wheels used hundreds of hours of computer simulations to push nearly all of the stress to the outer circumference of the wheel nullying premature drivetrain failure
5. Modular design allows farmers to fix a broken 'lug' (the modular tire portion) in only 60 seconds with only 2 bolts to pull out and put back in
6. Pricing is in line with industry standard - far less expensive than the NFTrax, which is most likely the best non-pneumatic solution pre-Shark Wheels.
7. The new wheel design is compliant. This means the wheel actually flexes (unlike the wheel in this video) and can absorb blows from rocks and other debris. The compliant design also removes vibration and other stresses.
8. The width of the Shark Wheel does not leave a berm like pneumatics that push soil away from the center. In measuring the total width of the Shark Wheel vs. a pneumatic, they are exactly the same
In short, the Shark Wheel in its newest form is a work of art and engineering. Everything was thought of with the final design that commercializes in Q4 2021.
Patents
WO2025085077 -- FARM IRRIGATION WHEEL
A wheel having a circular ring is provided. The circular ring has a rotational axis and an outer surface. A plurality of lugs is mounted in side-by-side positions on said outer surface of the circular ring. Each lug of the plurality of lugs has: a center rib, a first leg and a second leg, each leg extending from the center rib laterally and opposite of each other, and a plate adapted to connect the first leg to the center rib. The outermost point of each center rib may form a circular pattern that is coaxial with the rotational axis. The wheel may have a rim nested within said circular ring, said rim having a plurality of alternating scalloped protrusions. The plurality of lugs may include high traction lugs having plates with distal edges configured to radially extend beyond the center rib to provide traction to the wheel on difficult terrain.
US12138960 -- Caster assembly having sinusoidal wheels
A caster assembly having a top cap configured to engage with a structure, a caster leg configured to pivotally engage with the top cap, such that the caster leg selectively pivots about a pivot axis, and a pair of sinusoidal wheels configured to be rotationally engaged with the caster leg, the sinusoidal wheels being configured to rotate about a wheel rotational axis and swivel with the caster leg as a required when the structure is moved. An angled member of the caster leg may be configured to engage with the sinusoidal wheels such that the wheel rotational axis is not intersected by the pivot axis. An offset angle formed between the angled member and a vertical member of the caster leg, when used in conjunction with the disclosed sinusoidal wheels, is configured to ease structure movement by minimizing resistances exerted on the sinusoidal wheels during rolling and caster leg pivoting.
US2022228651 -- CONTINUOUSLY VARIABLE TRANSMISSION SYSTEM
A continuously variable transmission system having a first adjustable pulley and a second adjustable pulley, a belt being around an outer surface of both the first and the second pulley, and a CPU programed to signal a motor to adjust the first adjustable pulley and second adjustable pulley according to a user input is provided.
US11130071 -- Frisbee with a sinusoidal shape
A frisbee balanced to spin about a central axis has a central portion with a top surface and an opposing bottom surface. The central portion terminates peripherally with a circular rim having a sinusoidal curvature. The central portion conforms to the sinusoidal curvature of the rim forming radial variations of peaks and valleys. Plural sinusoidal cycles of radially directed, convex peaks impart thrust enabling it to float in a chosen direction when thrown and to rotate about its central axis developing lift due to air passing over the generally domed top surface.
US12043059 -- Farm Irrigation Wheel
A wheel having a hub and a circular ring is provided. The circular ring has a central axis, an outer surface having a first outer edge and a second outer edge, and a plurality of holes disposed on the outer surface. Additionally, the wheel has a plurality of spokes each being adapted to attach to both the hub and the circular ring, and each of the plurality of spokes being concaved and arranged in an alternating pattern. A plurality of lugs is disposed on the outer surface of the circular ring, and each of plurality of lugs has a first leg and a second leg, each extending from a center rib and a lug plate adapted to connect the first leg to the center rib.
USD898324 -- Pallet truck wheels
USD889128 -- Luggage wheel assembly
US11173745 -- Sinusoidal wheel
A wheel set assembly having a plurality of sinusoidal channeled wheels. The sinusoidal channeled wheels having a sinusoidal channel disposed around a circular exterior surface of each of the sinusoidal channeled wheels. The wheel set assembly allows for better maneuverability and longevity in comparison to other materials handling equipment wheels because of the sinusoidal channels. The sinusoidal channels also provide heat dissipation along with the ability to push debris out of the way of the materials handling equipment.
US10974919 -- Device and method for aligning material sheets
A material aligning device having a plurality of sine waves, wherein the sine waves can be in the form of protrusions repeating along an outer surface of a roller. The material aligning device provides an oscillation to the material sheet moving on it to cancel its vibrations, which allows for faster and improved alignment while printing, web converting, and during other similar processes. The material aligning device also relieves the high amount of tension typically necessary for the printing, converting, and other similar material processing using machines. The reduction in tension also reduces the likelihood of the material sheet being overly stretched or for it to rip.
US10118439 -- Wheel having a sinusoidal circumference
A circular wheel is aligned in a rotational plane and has a peripheral outfacing surface symmetrical about the plane of rotational. A center line of the width of the peripheral outfacing surface is sinusoidal around the wheel. The wheel may have a central hub, a rim, a medial wheel structure between the hub and the rim, and a tire mounted on the rim. The outfacing surface may be that of the hub, the medial wheel structure, the rim, or the tire depending on the application.
US2014132059- - WHEEL ASSEMBLY AND VEHICLE INCORPORATING SAME
A wheel assembly is provided that includes a body coupled to the central hub to rotate about the axis of rotation. The body forms an alternating pattern circumscribed about the central hub at constant radial distance from the axis of rotation. The body defines a median circle centered on and transverse to the axis of rotation. The alternating pattern of the body is evenly distributed across the median circle, resulting in an effective width greater than the width of the body. On hard surfaces, the wheel assembly provides a broad track while maintaining a relatively thin contact result providing reduced friction than a traditional wheel. On soft surfaces, the wheel assembly provides substantial traction