Abstract: This invention relates to a refillable and/or interchangeable cartridge that can attach and detach from a hairdryer. Prior to, concurrent with or subsequent to hair drying, a user can activate the cartridge to dispel, mist, steam or otherwise disperse the cartridge's product onto the user's hair, skin, scalp or fur. Each cartridge can contain various hair treatment products, styling products and/or nutrients. A cartridge can attach and detach at various points along the hairdryer including but not limited to inside the front outlet or rear inlet, primarily annularly around either the front outlet or rear inlet, along the top of the housing, through the core of the housing, or in the handle. The hairdryer also has improved heat transfer, fluid flow, reduced noise and vibration, weight and a shorter main housing barrel to make it easier for a user to treat and style the user's hair, skin, scalp or fur.

Abstract: This invention teaches dispensing a precise amount of liquid from a rigid vessel using a combination of valves, plugs, and diaphragms. In particular, a rigid container with a connected measuring receptacle can dispense oil. A user can depress at least one diaphragm on the rigid container to pressurize a chamber, forcing the liquid upwards into a hollow tube and into the measuring receptacle. The hollow tube, traversing the interior of the container, has at least one orifice at both the proximal and distal ends. The user can calibrate the amount of liquid in the measuring receptacle by activating a release valve or stopper to remove the liquid from the measuring receptacle and back into the container. In addition, a flexible and optionally removable lid covers the measuring receptacle. This lid can be depressed to pressurize the measuring receptacle and expel the liquid from an orifice on the measuring receptacle.

Abstract: This invention relates to a device comprised of at least two interchangeable modules, wherein at least one module has a power source and/or data storage unit and can transmit power and/or data to all of the electrically and mechanically mated modules. The device is designed for use in extreme weather environments, such as but not limited to, snow, rain, at elevation, and/or under pressure. In addition, each mating point between the at least two modules is waterproof. In a preferred embodiment, the device is comprised of a first module that is an optical head, with at least two optical lenses and can sense and capture image data. A second module is a handle comprised of a battery. When the first and second modules are electrically and mechanically mated, the two modules are secure and waterproof and the device operates as a 360° optical camera with an interchangeable power handle module.