AORTE FITNESS INC. | SHIFT-FORCE Research & Development

Exoskeleton	Weight	Power	Natural Movement	Fluid Force Transfer	Maintenance
AORTER Architecture	2.5 to 5 kg architecture class	Passive core; powered nodes optional	Dynamic cord travel	Continuous bilateral pathway	Configuration-specific
HULC (Lockheed Martin)	✗ 24 kg	✗ Battery	✗ Limited	✗ Mechanical	✗ High
Apogee ULTRA (German Bionic)	✗ Powered	✗ Battery / electrical	✗ Limited	✗ Mechanical	✗ High
IX BACK VOLTON (SUITX / Ottobock)	✗ 4.5 kg	✗ Battery / electrical	✗ Back-task focused	✗ No continuous routing	✗ Medium
EASE Exoskeleton	✗ Weight not public	✗ Battery / electrical	✗ Arm-focused	✗ No continuous routing	✗ High
Hilti T22	✗ 7.5 kg	✗ Battery	✗ Limited	✗ Mechanical	✗ Medium
Enforcer ExoHeaver	✗ 23.5 kg	✗ Battery	✗ Limited	✗ Mechanical	✗ High
UBRE (NASA)	✗ 18 kg	✗ Battery	✗ Limited	✗ Mechanical	✗ High
EksoNR (Medical Rehab)	✗ Powered	✗ Clinical-only gait architecture	✗ Limited	✗ Mechanical	✗ High
Indego Therapy (Medical Rehab)	✗ Powered	✗ Limited	✗ Limited	✗ Mechanical	✗ High

Exoskeleton	Weight	Dynamic Adjustment	Mechanical Advantage	Fluid Force Transfer	Energy Harvesting
AORTER Architecture	2.5 to 5 kg architecture class	Adjustable tension and travel	Geometry and clutch dependent	Continuous bilateral pathway	Generator coupling described in patent
HeroWear Apex 2	✓ 3 lb / 1.5 kg	✗ Preset only	✗ No	✗ Fixed / short elastic	✗ No
HAPO Back	✓ 1.2 kg	✓ Articulated support path	✗ No	✗ Fixed	✗ No
HAPO Front	✓ 1.3 kg	✓ Articulated support path	✗ No	✗ Fixed	✗ No
Laevo	✓ 2.8–3.0 kg	✗ On/off only	✗ No	✗ Fixed / short path	✗ No
Auxivo LiftSuit	✓ <0.9 kg	✗ On/off only	✗ No	✗ Short elastic	✗ No
Auxivo OmniSuit	✓ 2.7–3.0 kg	✗ Task-set only	✗ No	✗ Short elastic	✗ No
Levitate Airframe	✓ 5 lb / 2.3 kg	✗ No	✗ No	✗ Fixed	✗ No
Ottobock Paexo Shoulder	✓ 1.9 kg	✗ Fit only	✗ No	✗ Fixed cable-to-hip	✗ No
EksoVest	✓ 4.3 kg	✗ Spring levels only	✗ No	✗ Fixed spring path	✗ No
Comau MATE-XT	✓ 6.6 lb / 3.0 kg	✗ Level-set only	✗ No	✗ Fixed spring path	✗ No
Skelex 360	✓ 2.3–2.85 kg	✗ Setup only	✗ No	✗ Fixed gravity-balance	✗ No
Japet W+	✓ 2.0 kg	✗ Motor levels only	✗ No	✗ Fixed active lumbar	✗ No
Verve Motion SafeLift	✓ <6.5 lb / <3 kg	✗ Adjustment levels only	✗ No	✗ Active back-assist	✗ No
Hunic SoftExo	✓ 1.2 kg	✗ Fit only	✗ No	✗ Short elastic	✗ No

MECHANICAL LAYER	LOW-MASS / COMPLIANT	DIRECT / PRECISION	HIGH-DUTY / MACHINE	WHAT CHANGES
Cord behaviour	Elastic or intermediate stretch	Low-stretch, dimensionally stable line	High-strength engineered fibre or application-specific cable	Stroke feel, hysteresis, return and transmission loss
Sheave channel	Retained compact groove	Deep machined channel with controlled groove radius	Application-sized multi-wrap or traction profile	Line retention, contact pressure, slip, bend loss and usable wrap
Bearing system	Low-friction polymer or compact rolling element	Shielded precision steel or ceramic-hybrid bearing	High-load roller, guided carriage or sealed industrial bearing	Starting friction, radial stability, service life and measurement fidelity
Rail structure	Compact steel or aluminium guide	CNC-aligned precision linear rail	Parallel heavy-section or long-travel rail set	Alignment, available travel, stiffness and scalable mechanism size
Resistance schedule	Shock cord or light coil spring	Selected coil rate with adjustable preload	Progressive spring set, piston or actuator	Initial force, force rise, damping and return timing
Side control	Common bilateral tension	Independent dial or clutch tension	One-way, commanded or multi-node clutching	Left-right participation, hold state and release threshold
Energy pickup	Strain or modal sensing point	Rotary sheave or electromagnetic rail pickup	Rectified generator, conditioning and storage assembly	Reaction force, conversion loss, output quality and net system value
Structural carrier	Textile vest and compact frame	Carbon-composite or machined support	Fixture, robotic chassis or humanoid structure	Mass, rigidity, load distribution and integration envelope

ARCHITECTING KINETIC PATHWAYS THROUGH RESEARCH + DEVELOPMENT

HOW CAN MOVEMENT POWER THE MACHINE?

The passive KRA core already turns movement into bilateral motion and lift assistance. Once spring-loaded nodes travel on linear rails, that same movement also leaves a measurable trace: displacement, oscillation and force change. The pathway can therefore support the body and describe what the body just did.

LEFT MECHANICAL INPUT 52%MECHANICAL-TO-ELECTRICAL MATRIXRIGHT MECHANICAL INPUT 48%

LEFT LINEAR BEARINGMODEL INPUT 48 / 100

RIGHT LINEAR BEARINGMODEL INPUT 52 / 100

SIMULATION ACTIVITY INDEX

64 / 100

SYSTEM: CONTINUOUS BILATERAL LOOPCONVERSION: CONFIGURABLEOUTPUT: POWER + MACHINE TELEMETRY

Bilateral motionLift assistanceEnergy storageElectrical generationAR/VR + hapticsControl telemetry

Motion HarvestingWalking, running, repetitive machinery, robotic cycles and fixed chair or simulator movement can create study conditions for repeated bearing travel.

Energy ConversionElectromagnetic, rotary, piezoelectric, triboelectric, magnetostrictive and mechanically rectified pickups can be compared against their added drag and conversion loss.

Power ResearchOnly measured voltage, current and stored energy across a defined electrical load can determine whether an application supports sensing, lighting, communications or storage.

Bilateral DataMap force, timing, asymmetry, tremor and coordinated left-right response as a synchronized human-machine record, even when harvested power is not the primary value.

How one network changes the load

Arm-Tethered Force

The limbs remain the endpoints. The user moves the mass of the arms, wearable and any object held in the hands while configured KRA force assists, resists or transfers demand between sides.

Direct Load Suspension

Attach the tether to a tool, cargo point or carried system and the mechanism supports the object itself. Within its configured range, the load can remain suspended when the hands release it.

Balance Point

Residual demand is the attached load minus the effective KRA support at that position. Below balance, the user carries the difference. At balance, the supported load approaches neutral. Above balance, excess assistance creates upward bias.

Embedded Node Network

The same routing architecture can place additional redirection nodes through limbs, suit structures, rucksacks, steering mechanisms or robotic joints without changing the continuous bilateral core.

Configured Load BalanceSupport changes the force the user must supply.

F_residual(q)=W_attached−F_KRA(q)
F_KRA(q)=F₀+k_effΔx(q)−F_loss(q)

If attached weight exceeds effective support, the user carries the positive difference. Approximate equality defines the support balance point. If support exceeds the attached weight, the mechanism produces upward bias rather than literal negative mass.

W-Pattern KinematicsCord travel becomes measurable bearing travel.

|Δd| = n|Δx| · |ḋ| = n|ẋ|
F_track = Σ Tᵢ cos(αᵢ) · F_track ≈ TΓ(x)

The travel ratio applies to an ideal single-input reeving case with the opposite end fixed. The force approximation additionally requires near-equal segment tension, with Γ(x)=Σcos(αᵢ(x)). Actual results include routing geometry, preload, friction, compliance and travel limits.

Mechanical Input + OutputMovement defines the power available for conversion.

P_mech(t) = F_gen(t)ẋ(t)
P̄_e=(1/τ)∫₀^τv(t)i(t)dt

Mechanical power is force multiplied by bearing velocity. Electrical output must be measured across a defined load and duty cycle; harvesting introduces reaction force and cannot be treated as free assistance.

ENGINEERING BOUNDARY · Effective support changes with geometry, preload, displacement, cord behaviour, friction and travel limits. Balance, upward bias, energy output and suspended-load performance require configuration-specific measurement.

For load-balance studies, generation testing or supporting resources, contact AORTE.

How parallel W-nodes change the mathematics

One cord, multiple node states

The calculation begins with cord-length compatibility, not an assumed output. For an ideal low-stretch path, endpoint travel and every moving node satisfy one shared constraint: Δℓ_L + Δℓ_R + Σ n_jΔx_j ≈ 0. The signed coefficients n_j come from the actual W routing and change when another sheave, wrap or linear stage is added.

Parallel is not a free multiplier

WW or multi-W branches can move together, but their ratios depend on whether they share one cord, separate cords, equal spring rates, a common carriage or independent clutch states. Identical equal-displacement branches give k_eq = Σk_i. Series and compound stages follow different relationships. More bearings may expose more stroke while adding friction, inertia and bend loss.

Fifty-fifty is a centre condition

In a simple two-end normalization, s_L = T_L/(T_L+T_R) and s_R = 1−s_L. A 50/50 reading is the calibrated equilibrium zone, not a guarantee. If one endpoint is tethered at its exit limit, the fixed boundary receives reaction while the cord and movable nodes can still change state.

Brakeable and generating nodes

A node can remain passive, carry a dial clutch or one-way pawl, couple to an electromagnetic or piezoelectric pickup, drive a piston, or compress air. Each addition changes the local spring, damping, friction, clutch and generator-reaction terms.

NODE-TOPOLOGY FORMGeometry maps cord movement into node movement.

Δℓ = J(q)Δq · F_q = J(q)^TT
Mq̈ + Cq̇ + Kq + F_friction + F_clutch + F_gen = J^TT

J(q) is the configuration-dependent routing matrix. It prevents one displacement ratio from being applied blindly to every stacked W construction.

SHIFT-FORCE OBSERVATIONMeasure the coupled state from both sides.

z(t)=[T_L,T_R,x₁…x_m,q̇,θ,ΔT]^T
centre error = s_L−0.5

Load cells, linear encoders, optical or laser distance sensing, conductive-line measurement, proximity sensors, IMUs and rotary encoders can feed an Arduino-class acquisition layer or SHIFT-FORCE. Synchronized data can resolve travel, velocity, acceleration, timing, angle, proximity, force shift and return-to-centre behaviour.

AUTOMATIC RECENTRINGMechanical coupling supplies the relationship; control can tune the centre.

u = −K_p(s_L−s*) − K_dd(s_L−s*)/dt
s* = 0.50 or a task-specific bias

In a robotic or steering module, clutch, resistance or actuator commands can oppose measured centre error. This is a control objective to simulate and validate, not a claim that every passive configuration automatically navigates or recentres itself.

MODEL BOUNDARY · Node count alone does not determine travel, suspension or electrical output. The routing matrix, component properties, boundary conditions and measured losses must be defined for each configuration.

COLLABORATIVE PATENT PATHWAYSOscillation becomes usable rotation. Usable rotation becomes conditioned power.

AORTE’s issued KRA architecture establishes a bilateral cord path, movable sheaves, linear-bearing travel, configurable resistance, sensing and a generator-coupling foundation. Complementary patents accessible through collaboration can extend that pathway with mechanical rectification, one-direction rotary output, flywheel smoothing, generation, conditioning and storage without confusing a development pathway with measured performance.

KRA OSCILLATORY INPUT→MECHANICAL RECTIFICATION→ROTARY OUTPUT→GENERATION + STORAGE

ω̄_out=(κ/τ)∫₀^τ|ẋ(t)|dt · P̄_e≤η_rectη_gen(1/τ)∫₀^τ|F_gen(t)ẋ(t)|dt

PATHWAY TO VERIFIED POWEREvery stage earns its number.

01 · KINEMATICSMap the movement

Measure free-end travel, bearing travel, cord angle, repetition rate and hysteresis to identify the effective ratio.

02 · FORCE + ASSISTQuantify the trade

Record tension, track load, preload, parasitic resistance and lift assistance before and during harvesting.

03 · CONVERSIONClose the power chain

Measure rectifier efficiency, shaft speed, torque, generator voltage and current, conditioning loss and stored energy.

04 · MISSION VALIDATIONTest the environment

Define mass, duty cycle, thermal rise, durability, fault behavior and applicable dust, water, vacuum or suit-interface conditions.

A MECHANICAL STANDARD FOR WHAT COMES NEXT.

MECHANICAL GLOSSARY OF TERMS.

THE PATHWAY HAS ALWAYS BEEN THE PROBLEM. UNTIL NOW.

...THE SCALE CHANGED. TALOS WENT BIG AND FAILED. THE KRA WENT BIG BY GOING LONG.

DO NOT REPLACE THE POWERED SYSTEM. COMPLETE IT.

...SO WHAT IF THE FUTURE ISN’T POWERED AT ALL?

USE MECHANICS FIRST. POWER ONLY WHAT NEEDS POWER.

A NODE IS WHERE THE PATHWAY CHANGES STATE.

THE SYSTEM CAN INVESTIGATE RECOVERING PART OF ITS OWN MOVEMENT.

THE KRA IS INEVITABLE.

Single-track bilateral core

Parallel-track differential core

Clutch-modulated core

Fixture and machine core

PRECISION BEGINS WITH THE MECHANICAL ELEMENT.

THE MECHANICAL CATEGORY IS EXPANDING.

Bring bilateral mechanics into your system.

THE BODY POWERS THE PATHWAY.

MECHANICAL FORCE BECOMES MACHINE-READABLE CONTROL.

HOW CAN MOVEMENT POWER THE MACHINE?

CAN DATA AND POWER CREATE MECHANICAL PRECISION?

ASSISTANCE BECOMES ACCELERATED ELEVATION.

THE MECHANICAL CORE EXISTS. WHAT SHOULD WE BUILD AROUND IT?

PATENTED KINETIC RESISTANCE APPARATUS

ISSUED PATENT CLAIMS

Technical & Market Position

Core Apparatus Configuration (Claims 1-5)

Technical Analysis:

Technical Analysis:

Technical Analysis:

Tension Control Mechanisms (Claims 3-4, 13-14)

Technical Analysis:

Technical Analysis:

Structural Configurations (Claims 6-9, 15)

Technical Analysis:

Technical Analysis:

Application-Specific Configurations (Claims 12, 16-19)

Technical Analysis:

Technical Analysis:

TECHNICAL INQUIRIES.

AORTE FITNESS INC. scope

Public technology boundary

Defence collaboration

Patent ownership is not a product claim

Regulatory review

Research status

Commercial product

Specialized applications