초록 ▼

An air vent system having an inner tube slidably disposed within a liner. A lock mechanism is mounted at one end of the inner tube. A lock pin is disposed at one end of the liner and is constructed to engage the lock mechanism such that the air vent system can be selectively moved between an open po

An air vent system having an inner tube slidably disposed within a liner. A lock mechanism is mounted at one end of the inner tube. A lock pin is disposed at one end of the liner and is constructed to engage the lock mechanism such that the air vent system can be selectively moved between an open position and a closed position.

대표청구항 ▼

An air vent system comprising: a liner having a first end and a second end, said liner defining an air passageway therethrough, said liner having an inner surface adjacent said air passageway and an outer surface opposite said inner surface; a lock pin disposed on said liner; and an inner tube slida

An air vent system comprising: a liner having a first end and a second end, said liner defining an air passageway therethrough, said liner having an inner surface adjacent said air passageway and an outer surface opposite said inner surface; a lock pin disposed on said liner; and an inner tube slidably disposed within said liner, said inner tube defining an air passageway therethrough, said inner tube having an outer surface and an inner surface, said inner tube having a first end and a second end, said inner tube defining a first exhaust aperture therethrough, said inner tube having a lock mechanism disposed thereon, said lock mechanism being constructed selectively to engage said lock pin whereby said air vent system can be selectively moved between an open position and a closed position.