Abstract: A fitting for a fluid-circulating heat exchanging garment includes a cylindrical tube of flexible PVC extending from and integrally formed with a fluid-conducting chamber, the tube having a length, a distal portion with an inner diameter adapted to receive and closely fit a tubing end of a flexible PVC tubing, and a proximal portion with an inner diameter substantially equal to an inner diameter of the flexible PVC tubing, the cylindrical tube having a plurality of spaced apart radially-extending ribs extending the length of the tube and continuing to an outer surface of the fluid-conduction chamber. A manifold for heat exchanging garments has a central fluid-conducting chamber with a plurality of fittings extending therefrom and an inlet/outlet for connection to flexible tubing connected to a fluid circulating system.

Abstract: A pass-through device is provided with one or more sealed connection channels which permit fluid to pass through an environmental protection suit. The device includes an inner housing and an outer housing formed from a flexible PVC with one or more respective inner channels and outer channels configured in each, such that when the inner housing and outer housing are connected, the inner channels and outer channels are sealably connected at a central channel opening to provide sealed conduits through which a fluid or gas passes. The inner housing and outer housing may be connected via a plurality of peripheral retention screws on the inner housing which interface with a plurality of peripheral barrel nuts on the outer housing.

Abstract: A method is provided for making a fluid-circulating heat exchanging garment, the method including providing a fabric panel for assembly of the heat exchanging garment, defining a tubing layout on the fabric panel with straight portions and bend portions defined in a flexible tubing. The straight portions of the tubing are affixed to the fabric panel and a mold is inserted into the inner radius of each bend portion. The mold has a shape corresponding to each bend portion and a channel having a radius adapted to closely fit over the tubing. The fabric panel and tubing are heated to an annealing temperature of the tubing. After cooling the fabric panel, the molds are removed, leaving the tubing reshaped at the bend portions to a desired radius.

Abstract: A method is provided for making a fluid-circulating heat exchanging garment, the method including providing a fabric panel for assembly of the heat exchanging garment, defining a tubing layout on the fabric panel with straight portions and bend portions defined in a flexible tubing. The straight portions of the tubing are affixed to the fabric panel and a mold is inserted into the inner radius of each bend portion. The mold has a shape corresponding to each bend portion and a channel having a radius adapted to closely fit over the tubing. The fabric panel and tubing are heated to an annealing temperature of the tubing. After cooling the fabric panel, the molds are removed, leaving the tubing reshaped at the bend portions to a desired radius.

Abstract: A fitting for a fluid-circulating heat exchanging garment includes a cylindrical tube of flexible PVC extending from and integrally formed with a fluid-conducting chamber, the tube having a length, a distal portion with an inner diameter adapted to receive and closely fit a tubing end of a flexible PVC tubing, and a proximal portion with an inner diameter substantially equal to an inner diameter of the flexible PVC tubing, the cylindrical tube having a plurality of spaced apart radially-extending ribs extending the length of the tube and continuing to an outer surface of the fluid-conduction chamber. A manifold for heat exchanging garments has a central fluid-conducting chamber with a plurality of fittings extending therefrom and an inlet/outlet for connection to flexible tubing connected to a fluid circulating system.

Abstract: A quick disconnect latching device for use in a liquid conduit coupling has two halves: a pin half and a release half. The pin half includes a casing sleeve into which a latch pin is slidably retained. The latch pin is spring biased into a retracted position within the sleeve. Latch pin dogs are located at the ends of arms extending from the latch pin to interact with a catch within the release half. A hollow nose casing is tapered to cam the arms inward when a sufficient separating axial force is applied to one or both of the pin half and the release half, so that the latch pin dogs release the catch. The amount of force required to separate the latch halves can be adjusted by varying the spring bias using an adjustment screw.