Patent ID: 9624910
Date: 2017-04-18
CPC Classifications: E06B,F03D,F05B,Y02E

Claim:
1. A hatch cover to cover a hatch opening in a hatch of a nacelle for a wind driven power plant wherein the nacelle defines a longitudinal direction along a length of the nacelle, a transversal direction along a width of the nacelle, and a vertical direction along a height of the nacelle, the hatch cover being moveable between an open position and a closed position and comprising: a plurality of segments configured to remain within the hatch opening when the hatch is in the open position, wherein the hatch opening is configured to be on a top side of the nacelle with the segments being configured to be movable within the hatch opening in the transversal or the longitudinal direction; and wherein each segment has at least one extension on each opposing side of the segment, and wherein at least some of the extensions are hook-like shaped with a sealing edge comprising a gasket that engages another segment in the closed position to provide a sealing when in the closed position, and wherein the hook-like shaped extensions comprise a first section and a second section, wherein the second section is perpendicular to the first section; and a movable sealing mechanism, wherein the movable sealing mechanism is configured to engage the plurality of segments in a sealing position when the hatch cover is in the closed position and to retract from the sealing position in order to enable the plurality of segments to move.