USA As Represented by Secretary of the Navy

Joseph Rudolph

Robert J Hughes

Billy Courson

Kenneth Price

Dennis McCrory

An electrical power supply arrangement incorporates a turbine-generator ambly providing a self-contained non-battery electrical power source for supplying power to a breathing apparatus. The turbine-generator assembly is interposed in an air hose extending between first and second stage pressure regulators respectively connected to a pressurized air cylinder and to a cooling device of the breathing apparatus. The assembly includes an air turbine and an electrical generator disposed and coupled in tandem relationship to one another and enclosed in an elongated hollow housing. Pressurized air introduced into the turbine end of the housing expands across turbine blades and rotatably drives a central shaft of the turbine which, in turn, rotates a central rotor of the generator causing generation of electrical power in a stationary stator of the generator which surrounds the rotor. The electrical power can be accessed at a terminal block attached to the generator end of the housing for supplying power to operate the cooling device of the breathing apparatus.

Breathing apparatus having electrical power supply arrangement with

An insulation jacket is provided for a breathing gas device. A first jacket ortion wraps completely about the device's cylinder and gas delivery valve. A second jacket portion wraps about a high-pressure regulator coupled in-line with the gas delivery valve and a plurality of gas delivery conduits extending from the high-pressure regulator. The first and second jacket portions are formed from a flexible insulating material of laminate construction. A plurality of fastening strips, e.g., hook-and-loop fastening strips, cooperate with first and second jacket portions after they are wrapped about the respective portions of the breathing gas device.

Insulation jacket for breathing gas device

A device is provided for modifying the temperature of a breathing or other as supplied through a conduit. A heat exchanger is mounted in-line with the conduit. A thermoelectric device has first and second thermally conductive plates separated by at least one thermoelectric couple. The first thermally conductive plate is in thermal contact with the heat exchanger. A phase change material is in thermal contact with the second thermally conductive plate. A voltage is applied to the thermoelectric couple(s) to maintain the first and second thermally conductive plates at different temperatures. The phase change material changes from a first phase to a second phase at a phase change temperature that is selected to be between the different temperatures of the first and second thermally conductive plates.

Breathing gas temperature modification device

A breathing gas cooling and heating device. Warm breathing gas enters the it which consists of a heat exchanger mounted in an insulated shell and runs through the heat exchanger tubes. These tubes are in intimate thermal contact with micro-encapsulated phase change materials. The micro-encapsulated phase change material changes phase from solid to liquid, thereby absorbing heat at the temperature of the phase change material, and thereby cooling the gas flowing through the heat exchanger. In situations where heating of the breathing gas is desired, the gas stream absorbs heat from the phase change material. The unit is rechargeable for chilling applications after usage by placing the device in an ambient environment less than the temperature of the phase change of the material or by replacing the phase change material. It is rechargeable for heating applications by warming the device to a temperature above that of the phase change material. The unit circumvents the need for ice, the most commonly available chilling medium, in situations where ice or other cooling is not available. Additionally, the unit can be used by filling it with an ice water slurry for fire fighting applications where ice is readily available. The gas then exits the device in a chilled state. The device is designed to work in conjunction with numerous existing breathing apparatus by virtue of the in-line installation capability to existing systems.

Growing community of inventors

Panama City Beach, FL, United States of America

Joseph Rudolph