Door frame seals

A door system for connection to a marine vessel bulkhead around an aperture in the bulkhead, the system comprising:

• a) a frame adapted for connection to the bulkhead and comprising two sides, a top member and a floor trough;
• b) a door comprising a structural panel and having a bulkhead side adapted in use to face the bulkhead and an opposing door side facing away from the bulkhead;
• c) the top member including a track having depending supports of the door;
• d) a side channel on a first side of the frame;
• e) a lip on the second side of the frame;
• f) the door having a first side edge adapted to engage said side channel when the door is slid along said track to a closed position of the door;
• g) the door having a door channel around its second edge, which channel is open on the bulkhead side of the door, whereby the open door channel engages said lip when the door is slid along said track to said closed position of the door;
• h) a circumferential seal between the door and the frame;
• and
• i) a cam to press the door against the frame to effect the seal, the cam being operated when the door is slid along said track to said closed position of the door;
• and wherein
• j) said side channel and door channel are reinforced so as to accommodate pressure loads on the bulkhead side of the door tending to push the door off the seal.

A door system for connection to a marine vessel bulkhead around an aperture in the bulkhead above a floor of the vessel, the system comprising:

• a) a frame adapted for connection to the bulkhead and comprising two sides, a top member and a floor trough;
• b) a door comprising a structural panel and having a bulkhead side adapted in use to face the bulkhead and an opposing door side facing away from the bulkhead;
• c) the top member including a track having depending supports of the door;
• and a circumferential seal on one of the door and frame adapted to engage the other of the frame and door, wherein
• d) said structural panel comprises a bulkhead skin, a door skin spaced from the bulkhead skin and an edge skin extending around the door, reinforcing ribs bracing said bulkhead and door skins against one another;
• e) a rim, including said edge skin, around the edge of the door panel and defining both the width of the door and at least a bulkhead face of the rim, which face is of a width sufficient to overlie said seal;
• said bulkhead skin is inset within said rim to receive a fire resistant door board;
• and
• g) said sides and top member of the frame have fire resistant frame boards whose edges are adjacent said seal when the door is slid along said track to said closed position of the door and are adapted to define with said door board an inaccessible heat path.

A watertight door system for a marine vessel around an aperture in a bulkhead above a floor of the vessel, the system comprising a door and a door frame having a threshold, a circumferential seal around an opening of the door frame closed by the door, which seal is formed between seal components of the door and seal components of the door frame, an upstanding flange of the threshold forming a part of the seal components of the door frame, said flange being selectively displaceable between an operable position in which the door and door frame seal components can seal against one another to render the door watertight and an open position in which said threshold has a substantially flush top surface, the system further comprising:

• a) the frame being adapted for connection to the bulkhead and comprising two sides, a top member and a floor trough;
• b) the door comprising a structural panel and having a bulkhead side adapted in use to face the bulkhead and an opposing door side facing away from the bulkhead;
• c) the top member including a track having depending supports of the door;
• d) a side channel on a first side of the frame;
• e) a lip on the second side of the frame;
• f) the door having a first side edge adapted to engage said side channel when the door is slid along said track to a closed position of the door;
• g) the door having a door channel around its second edge, which channel is open on the bulkhead side of the door, whereby the open door channel engages said lip when the door is slid along said track to said closed position of the door;
• h) a circumferential seal between the door and the frame;
• and
• i) a cam to press the door against the frame to effect the seal, the cam being operated when the door is slid along said track to said closed position of the door;
• and wherein
• j) said side channel and door channel are reinforced so as to accommodate pressure loads on the bulkhead side of the door tending to push the door off the sea.

A watertight door system for a marine vessel around an aperture in a bulkhead above a floor of the vessel, the system comprising a door and a door frame having a threshold, a circumferential seal around an opening of the door frame closed by the door, which seal is formed between seal components of the door and seal components of the door frame, an upstanding flange of the threshold forming a part of the seal components of the door frame, said flange being selectively displaceable between an operable position in which the door and door frame seal components can seal against one another to render the door watertight and an open position in which said threshold has a substantially flush top surface, the system further comprising:

• a) the frame being adapted for connection to the bulkhead and comprising two sides, a top member and a floor trough;
• b) the door comprising a structural panel and having a bulkhead side adapted in use to face the bulkhead and an opposing door side facing away from the bulkhead;
• c) the top member including a track having depending supports of the door;
• and a circumferential seal on one of the door and frame adapted to engage the other of the frame and door, wherein
• d) said structural panel comprises a bulkhead skin, a door skin spaced from the bulkhead skin and an edge skin extending around the door, reinforcing ribs bracing said bulkhead and door skins against one another;
• e) a rim, including said edge skin, around the edge of the door panel and defining both the width of the door and at least a bulkhead face of the rim, which face is of a width sufficient to overlie said seal;
• f) said bulkhead skin is inset within said rim to receive a fire resistant door board;
• and
• g) said sides and top member of the frame have fire resistant frame boards whose edges are adjacent said seal when the door is slid along said track to said closed position of the door and are adapted to define with said door board an inaccessible heat path.