초록 ▼

A personal shelter, such as a bivouac sack (10), tent or sleeping bag, for extracting internal moisture and venting. The personal shelter includes a top (14), bottom (12) and end (16) piece, and defines a foot end (17) and head end (18) at opposite ends of a longitudinal axis. The personal shelter a

A personal shelter, such as a bivouac sack (10), tent or sleeping bag, for extracting internal moisture and venting. The personal shelter includes a top (14), bottom (12) and end (16) piece, and defines a foot end (17) and head end (18) at opposite ends of a longitudinal axis. The personal shelter also includes a first opening (40) at the foot end, a second opening (20) near the head end, and a semi-rigid duct (30) with an inlet end that is approximately colocated with the first opening and an outlet end that is approximately colocated with the second opening. The semi-rigid duct receives outside air through the first end, mixes the received outside air with moist air within the personal shelter, and exhausts the mixed air through the second end.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [27.] A ventilated bivouac sack, comprising:a water-resistant shell defining a lower surface, an upper surface, an enclosed interior, a foot and a head end, the shell further defining:a

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [27.] A ventilated bivouac sack, comprising:a water-resistant shell defining a lower surface, an upper surface, an enclosed interior, a foot and a head end, the shell further defining:an access opening adjacent the head end for entry and exit into the interior of the shell;a ventilation opening disposed in the foot end of the shell;a fastener secured to the shell for selectively opening and closing the ventilation opening; andan airflow channel defined along the shell for placing the access opening in air flow communication with the ventilation opening, wherein the air flow channel comprises a frame for allowing air to flow between the access opening and the ventilation opening.