Back to results
US 6,446,393 B1Granted
Watertight door apparatus
AssigneeBath Iron Works Corporation
InventorsMatthew Jay Marston, Sr., John Alford Miller, Conrad Stone Brooks, Pantelis Zolas, Stephen James Nicholson
Life of this patent
Estimating the term…
Abstract
A watertight door apparatus includes a door, a door frame, a number of dogging elements, and an actuator mechanism for toggling the dogging elements between a latched condition and an unlatched condition. The dogging elements include roller elements for reducing friction between mating parts. A detent mechanism is provided to prevent inadvertent operation of the actuator mechanism. The dogging elements can be configured to rotate into and out of the latched condition, or they can be configured to slide into and out of the latched condition.
Claims21
A fluid-tight door apparatus comprising:
- a door;
- a door frame;
- a plurality of dogs rotatably connected to one of said door and said door frame and configured for selective engagement with the other of said door and said door frame;
- each of said plurality of dogs including a rolling element, at least a portion of said rolling element being substantially frusto-conical;
- and
- a mechanism for selectively rotating each of said dogs into engagement with the other of said door and said door frame;
- wherein said rolling element rolls across a portion of the other of said door and said door frame when said mechanism selectively rotates each of said dogs into engagement with the other of said door and said door frame.
4 more elements
A fluid-tight door apparatus comprising:
- a door;
- a door frame;
- a plurality of dogs rotatably connected to one of said door and said door frame and configured for selective engagement with the other of said door and said door frame;
- and
- a mechanism for selectively rotating each of said dogs into engagement with the other of said door and said door frame,
- wherein said mechanism comprises a plurality of rotating dog actuators and a linkage for interconnecting said plurality of rotating dog actuators,
- wherein each of said plurality of rotating dog actuators is attached to one of said plurality of dogs, and
- wherein each of said plurality of rotating dog actuators comprises a bellcrank and an axle, said bellcrank being connected to said linkage, and said bellcrank being selectively rotatable about said axle in response to a force applied to said bellcrank by said linkage.
5 more elements
A fluid-tight door apparatus comprising:
- a door;
- a door frame;
- a plurality of dogs movably connected to one of said door and said door frame, each of said dogs configured for selective engagement with a corresponding portion of the other of said door and said door frame;
- each of said dogs including a rolling element having a first axis, said rolling element being mounted in a cradle such that said rolling element has at least two degrees of freedom with respect to said dog;
- a mechanism for selectively moving each of said dogs into engagement with said corresponding portion of the other of said door and said door frame;
- wherein said rolling element rolls across said corresponding portion of the other of said door and said door frame when said mechanism selectively moves each of said dogs into engagement with said corresponding portion of the other of said door and said door frame.
3 more elements
A fluid-tight door apparatus comprising:
- a door;
- a door frame;
- a resilient, compressible seal between said door and said door frame;
- a dogging wedge adjustably connected to one of said door and said door frame;
- a dog movably connected to the other of said door and said door frame, said dog configured for selective engagement with said dogging wedge;
- a jack screw operably associated with said dogging wedge, said jack screw configured to adjustably displace said dogging wedge away from the corresponding one of said door and said door frame to effect adjustable compression of said dogging wedge against said dog when said dogging wedge is engaged with said dog, thereby enabling adjustable compression of said resilient, compressible seal.
3 more elements
A fluid-tight door apparatus comprising:
- a door;
- a door frame;
- a plurality of dogs rotatably connected to one of said door and said door frame, each of said plurality of dogs configured for selective engagement with a corresponding portion of the other of said door and said door frame;
- each of said dogs including a rolling element, at least a portion of said rolling element being substantially frusto-conical;
- and
- a mechanism for selectively rotating each of said dogs into engagement with said corresponding portion of the other of said door and said door frame;
- wherein said rolling element rolls across said corresponding portion of the other of said door and said door frame when said mechanism selectively rotates each of said dogs into engagement with said corresponding portion of the other of said door and said door frame.
4 more elements
Dependencies are inferred from the claim text.