A refrigeration and/or heat transfer device includes a heating section and cooling section, a release member, and a one-way check valve affixed together in a continuous loop so working fluid may flow in one direction therein. The heating section absorbs heat and transfers such heat to the working fluid, thereby heating, expanding and increasing pressure upon the working fluid therein. The pressurized working fluid is released in a regulated manner from the heating section to the cooling section, thereby carrying the heat away. The released working fluid cools and transfers its heat to the surroundings within the cooling section. As released working fluid enters the cooling section, such fluid displaces already cooled working fluid, pushing such fluid through the one-way check valve back into the heating section to absorb heat. The working fluid may undergo a phase change or remain in a single phase throughout to enhance heat transfer.

A surgical helmet system and a method of regulating the system. The system including a helmet and garment. The helmet comprising a module, a sensor, and a control processor. The control processor in communication with the module and the sensor, and is configured to selectively energize the module based on an input from the sensor. The garment comprises a face shield and is configured to be removably secured to the helmet so that the face shield is positioned forward of the helmet. The method comprises a measuring a temperature and selectively energizing the module based on the measured temperature. The method may further comprise selectively energizing the module for a time period that is proportional to a difference between a measured temperature and a desired temperature.

A wearable device, such as a garment or containing garment portions, for managing and/or reducing the symptoms of a hot flash in a subject. The device comprises: a first set of components, each comprising a fabric comprising a cooling yarn; a second set of components, each comprising a quick-dry wicking fabric; and a third set of components, each comprising a phase change material fabric, wherein the first set of components are adapted to cover at least a neckline region and a peripheral region that extends adjacently around the armpit and the clavicle of the subject; the second set of components are adapted to cover at least the abdominal muscles and the lumbar regions of the subject; and the third set of components are adapted to cover at least the mammary and the dorsum regions of the subject.

In one example, a heating and cooling garment system includes a garment, and a plurality of heating and cooling zones positioned within a portion of the garment. Each heating and cooling zone is configured to independently heat or cool based on heating and/or cooling instructions received from a mobile application executed on a wireless device.

A heat shielding sleeve defining a limb placement zone and including an installed position encapsulating a user's limb and an uninstalled position removed from a user's limb. The heat shielding sleeve further comprises an elastic or semi-elastic outer layer operably configured to enclose a user's leg and a secondary layer defined by a plurality of raised members wherein the secondary layer and the plurality of raised members are comprised of a thermally insulating material. The secondary layer further defines a plurality of exhaust apertures designed to provide thermal venting of the user's skin. The heat shielding sleeve is designed to protect motorcycle riders' and passengers' lower limbs from burns caused when riders and passengers come into physical contact with a motorcycle's exhaust pipes or the gas emissions emanating therefrom, while providing a comfortable and breathable garment sleeve that may be operably adjusted to the comfort of the user.

A body armor system comprising an existing body armor vest with a plurality of armor plates, an adhering layer, an insulation layer and a plurality of heat exchangers wherein said plurality of armor plates is attached with said plurality of heat exchangers via said adhering layer; the plurality of heat exchangers comprises plurality of metallic plates made preferably of copper or aluminium with pipes brazed to the back-side of the metallic plates.

A temperature controllable textile illustrated by the present disclosure has a first conductive cloth and a second conductive cloth. The first conductive cloth has a first metal while the second conductive cloth has a second metal different from the first metal. The first conductive cloth and the second conductive cloth have a thickness. A side surface of the first conductive cloth is in contact with a side surface of the second conductive cloth, and the first conductive cloth electrically connects to the second conductive cloth, to form two junction portions. When a negative end and a positive end of a direct current power electrically connects respectively with a top surface and a bottom surface of the first conductive cloth, the two junction portions form a cooling end and a heating end, respectively.

A refrigeration and/or heat transfer device includes a heating section and cooling section, a release member, and a one-way check valve affixed together in a continuous loop so working fluid may flow in one direction therein. The heating section absorbs heat and transfers such heat to the working fluid, thereby heating, expanding and increasing pressure upon the working fluid therein. The pressurized working fluid is released in a regulated manner from the heating section to the cooling section, thereby carrying the heat away. The released working fluid cools and transfers its heat to the surroundings within the cooling section. As released working fluid enters the cooling section, such fluid displaces already cooled working fluid, pushing such fluid through the one-way check valve back into the heating section to absorb heat. The working fluid may undergo a phase change or remain in a single phase throughout to enhance heat transfer.

A heat shielding sleeve defining a limb placement zone and including an installed position encapsulating a user's limb and an uninstalled position removed from a user's limb. The heat shielding sleeve further comprises an elastic or semi-elastic outer layer operably configured to enclose a user's leg and a secondary layer defined by a plurality of raised members wherein the secondary layer and the plurality of raised members are comprised of a thermally insulating material. The secondary layer further defines a plurality of exhaust apertures designed to provide thermal venting of the user's skin. The heat shielding sleeve is designed to protect motorcycle riders' and passengers' lower limbs from burns caused when riders and passengers come into physical contact with a motorcycle's exhaust pipes or the gas emissions emanating therefrom, while providing a comfortable and breathable garment sleeve that may be operably adjusted to the comfort of the user.

The present invention is an improved leg sleeve that is designed by utilizing wicking fabric for cooling and protecting a user's legs from UV rays. In particular, the invention allows a user to participate in physical activities such as sports and keep moisture and direct sun rays away from the skin, thus keeping extremities cool. The proposed embodiment provides a unique experience for those individuals who wish to protect their bodies from dangerous heat while remaining active.