Pressure balancing apparatuses and methods disclosed here include embodiments with a waterproof enclosure having walls surrounding an interior chamber, a mounting interface mounted to the enclosure with a port to an outside, and a balancing module, connected to the mounting interface, the balancing module including, a balancing module housing, a valve actuator member inside the balancing module housing, with a receptacle for a pressure source. In certain embodiments the valve actuator member is configured to move in response to changes in differential pressure between a pressure in the enclosure chamber and pressure from the outside, and a module valve, inside the balancing module housing, connected to the valve actuator member, and fluidically separating the enclosure chamber from the port to the outside, wherein the module valve is configured to open and close in response to the movement of the valve actuator member.

Provided is a touch control system of an electronic product in underwater environment. The touch control system includes a sealing device which is configured to accommodate the electronic product. The sealing device includes a sealed chamber interlayer and a sealed shell. Herein the sealed chamber interlayer is opposite to the touch screen of the electronic product and is capable of being pressed and rebounded and is transparent, and the sealed shell is connected with the sealed chamber interlayer in a sealing manner. The sealed chamber interlayer covers a surface of the touch screen completely. The sealed shell covers other surfaces of the electronic product, and implements touch control to the touch screen by applying an external force to the sealed chamber interlayer. Underwater high-accuracy maneuverability of the touch screen of the electronic product may be implemented when an external force is applied to the sealed chamber interlayer by a finger.

The invention relates to a multi-functional waterproof protective sleeve for a mobile terminal comprising a face cover comprising a screen window and a face cover affixing portion provided in the peripheral edge of the screen window; a middle frame provided with a middle frame affixing portion and a middle frame clamping portion, a rear cover comprising a rear cover body and a rear cover clamping portion adapted to the middle frame clamping portion; a solar charging module, a wireless charging module, a portable power, a control mainboard and a charging plug connected with the control mainboard are provided in order on the side of the rear cover body in the vicinity of middle frame. The invention can obtain waterproof function without using seal ring, and is provided with solar charging module, wireless charging module and portable power, which improve the endurance ability of mobile terminal greatly.

A floatable cell phone case floats, with a cell phone or other electronic device housed therein, on a liquid through use of enclosed polygonal units that define a polygonal air volume. The polygonal units form a seal with the cell phone to create buoyancy. The cell phone case comprises case body having a rear wall and enclosed sidewalls having a flange. The rear wall and sidewalls define a device placement zone. The device placement zone is sized to house the cell phone. The flange retains the cell phone within the device placement zone. The phone case further comprises enclosed polygonal units spanning upwardly from an inner surface of the rear wall into the device placement zone. Each of the polygonal units define a polygonal air volume.

A floatable cell phone case floats, with a cell phone or other electronic device housed therein, on a liquid through use of enclosed polygonal units that define a polygonal air volume. The polygonal units form a seal with the cell phone to create buoyancy. The cell phone case comprises case body having a rear wall and enclosed sidewalls having a flange. The rear wall and sidewalls define a device placement zone. The device placement zone is sized to house the cell phone. The flange retains the cell phone within the device placement zone. The phone case further comprises enclosed polygonal units spanning upwardly from an inner surface of the rear wall into the device placement zone. Each of the polygonal units define a polygonal air volume.

A waterproof holster includes articulating main body and cover that come together to form a cavity that is sealed off from the external environment. A sealing component improves the sealing of the main body and cover. The holster includes a latch for opening and closing the main body and cover. The holster also includes within the interior cavity a dock for securing a firearm or other piece of equipment to be stored within the holster. The holster is part of a system including user-wearable accessories such as a belt and leg straps.

A waterproof holster includes articulating main body and cover that come together to form a cavity that is sealed off from the external environment. A sealing component improves the sealing of the main body and cover. The holster includes a latch for opening and closing the main body and cover. The holster also includes within the interior cavity a dock for securing a firearm or other piece of equipment to be stored within the holster. The holster is part of a system including user-wearable accessories such as a belt and leg straps.

Brassieres and methods for forming brassieres are described. In one aspect, a brassiere includes a left cup, a right cup, and a pouch receiving area formed on an inside of the left cup or the right cup. The pouch receiving area includes a fastener that secures a removable pouch on an inside of at least one of the left cup or the right up.

Brassieres and methods for forming brassieres are described. In one aspect, a brassiere includes a left cup, a right cup, and a pouch receiving area formed on an inside of the left cup or the right cup. The pouch receiving area includes a fastener that secures a removable pouch on an inside of at least one of the left cup or the right up.

An insulating device can include an aperture having a waterproof closure which allows access to the chamber within the insulating device. The closure can help prevent any fluid leakage into and out of the insulating device if the insulating device is overturned or in any configuration other than upright. The closure may also prevent any fluid from permeating into the chamber if the insulating device is exposed to precipitation, other fluid, or submersed under water. This construction results in an insulating chamber that is substantially impervious to water and other liquids when the closure is sealed.