Prince Mohammad Bin Fahd University

Zainab Alsaigh

Muhammad Asad

Muhammad Azhar Ali Khan

Mushtaq Khan

Abdul Aziz Afzal

Alanood Almoaikel

Lujain Alshuhail

Bayan Aljishi

A self-operable centrifugally-activated brake system adapted for a wheeled device. The braking system includes a wheel having a hub, a rim, spokes extending between the hub and rim, and a rod extending between the hub and rim. A helical spring surrounds the rod, with a fixed end attached to the hub and a free end movable along the longitudinal direction of the rod. A brake mass structure is attached to the free end of the helical spring and includes a cylindrical pin structure. A main frame connects to the hub of the wheel. An extension structure extends from the main frame and includes a spacing segment and a hook segment having a groove configured to engage with the pin structure.

Centrifugally-activated brake system for a wheeled device

A wheelchair having an emergency brake system in which a wheel of the wheelchair has a hub, a rim, spokes extending between the hub and rim, and a rod extending between the hub and rim. A helical spring surrounds the rod, with a fixed end attached to the hub and a free end movable along the longitudinal direction of the rod. A brake mass structure is attached to the free end of the helical spring and includes a pin structure. A main frame connects to the hub of the wheel. An extension structure extends from the main frame and includes a spacing segment and a hook segment having a groove configured to engage with the pin structure. At a speed threshold, the pin structure engages the groove of the hook segment to prevent acceleration of the wheelchair.

Wheelchair with emergency brake system

A bicycle having a brake system for emergency or backup braking. The brake system include a wheel having a hub, a rim, spokes extending between the hub and rim, and a rod extending between the hub and rim. A helical spring surrounds the rod, with a fixed end attached to the hub and a free end movable along the longitudinal direction of the rod. A brake mass structure is attached to the free end of the helical spring and includes a pin structure. A main frame connects to the hub of the wheel. An extension structure extends from the main frame and includes a spacing segment and a hook segment having a groove configured to engage with the pin structure. At a speed threshold, the pin structure engages the groove of the hook segment to prevent acceleration of the wheel.

Bicycle with backup braking

A brake system includes a wheel having a hub, a rim, spokes extending between the hub and rim, and a rod extending between the hub and rim. A helical spring surrounds the rod, with a fixed end attached to the hub and a free end movable along the longitudinal direction of the rod. A brake mass structure is attached to the free end of the helical spring and includes a pin structure. A main frame connects to the hub of the wheel. An extension structure extends from the main frame and includes a spacing segment and a hook segment having a groove configured to engage with the pin structure. When the wheel rotates, the brake mass structure moves away from the hub along the rod. At a speed threshold, the pin structure engages the groove of the hook segment to prevent acceleration of the wheel.

Growing community of inventors

Dhahran, Saudi Arabia

Zainab Alsaigh