An embodiment includes a walking stick. The walking stick includes a rod assembly, a water purification assembly, and a manual pump. The rod assembly extends from a first end to a second end that is opposite the first end along a longitudinal direction of the rod assembly. The rod assembly includes at least one rod portion. The water purification assembly is integrated with the rod assembly. The manual pump is configured to impose a pressure gradient in the water purification assembly. The manual pump includes a plunger that is physically coupled to a handle portion. Motion of the plunger relative to the water purification assembly draws water into an inlet tube that is positioned in the rod portion and through the water purification assembly. The motion of the plunger results from translation of the handle portion in substantially the longitudinal direction of the rod assembly.

An embodiment includes a walking stick. The walking stick includes a rod assembly, a water purification assembly, and a manual pump. The rod assembly extends from a first end to a second end that is opposite the first end along a longitudinal direction of the rod assembly. The rod assembly includes at least one rod portion. The water purification assembly is integrated with the rod assembly. The manual pump is configured to impose a pressure gradient in the water purification assembly. The manual pump includes a plunger that is physically coupled to a handle portion. Motion of the plunger relative to the water purification assembly draws water into an inlet tube that is positioned in the rod portion and through the water purification assembly. The motion of the plunger results from translation of the handle portion in substantially the longitudinal direction of the rod assembly.

A solar power conversion kit allows converting of a standard umbrella into a solar charging umbrella, which can then use solar power to charge electronic devices. The solar charging umbrella is self-sustained, capable of charging electronic devices in locations away from electrical outlets. The umbrella has a rechargeable battery that is recharged by sunlight. When charged, the umbrella's battery can charge devices when sunlight is not available. The umbrella supports simultaneous charging of higher power devices such as tablet computers.

A solar power conversion kit allows converting of a standard umbrella into a solar charging umbrella, which can then use solar power to charge electronic devices. The solar charging umbrella is self-sustained, capable of charging electronic devices in locations away from electrical outlets. The umbrella has a rechargeable battery that is recharged by sunlight. When charged, the umbrella's battery can charge devices when sunlight is not available. The umbrella supports simultaneous charging of higher power devices such as tablet computers.

A convertible trekking staff includes a main shaft having an interior cavity that houses two concentric shafts. A first configuration includes a handle device coupled to the main shaft with the two concentric shafts disposed within the interior cavity of the main shaft to form a trekking staff. A second configuration includes an external component coupled to the main shaft in place of the handle device and the two concentric shafts received by an engagement structure on the main shaft so as to define a tripod.

Several embodiments are provided of a device which is tunable for providing a walking aid user with passive haptic feedback. The haptic feedback is provided to the user when a predetermined, desired force in the device is reached. The force, often simply an axial force, in the device is inputted by the user, who is looking to support some of his or her body weight, thereby taking some weight off of one or both legs for some purpose. The amount of body weight support the user would input is often expressed in terms of percentage of the user's total body weight, and can therefore be predetermined and the device tuned accordingly.

Several embodiments are provided of a device which is tunable for providing a walking aid user with passive haptic feedback. The haptic feedback is provided to the user when a predetermined, desired force in the device is reached. The force, often simply an axial force, in the device is inputted by the user, who is looking to support some of his or her body weight, thereby taking some weight off of one or both legs for some purpose. The amount of body weight support the user would input is often expressed in terms of percentage of the user's total body weight, and can therefore be predetermined and the device tuned accordingly.

The present disclosure relates to a responsive umbrella with a hands-free mechanism that allows a user to operate and hold the responsive umbrella without requiring the use of their hands. The hands-free mechanism may be a wearable strap or harness. A responsive umbrella may be adjustable for the angle of extension from the hands-free mechanism, which may allow a user to adapt the responsive umbrella for different ambient conditions.

The present disclosure relates to a responsive umbrella with a hands-free mechanism that allows a user to operate and hold the responsive umbrella without requiring the use of their hands. The hands-free mechanism may be a wearable strap or harness. A responsive umbrella may be adjustable for the angle of extension from the hands-free mechanism, which may allow a user to adapt the responsive umbrella for different ambient conditions.

A non-slip self-supporting orthopedic device includes: an upper disk slidably engaged with the rod and externally provided with a hinge; a lower disk, connected with the orthopedic device allowing the elastomeric foot to project downward, and externally provided with a hinge; and arms with upper element, lower element and spring adapted to hold the arm in folded configuration. The movable mechanism can take an enlarged configuration, in which the upper disk contacts the lower disk and the arms are folded. In an elongated configuration, the arms are in axial configuration following the pressing of a button connected to a kinematic mechanism causing the arms to take the axial configuration. The reversible connection system allows the reversible disconnection of the lower elements of the arms preselected by the hinge, determining the lifting of the entire arm in a vertical position by rotation around the hinge.