In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, safety monitoring detectors/apparatuses, and a centralized controller.

A flange cover mounting and dismounting device, which comprises: a base part, comprising a fastener element with a fastener hole array, and being fastened on a flange cover mounting surface by the fastener hole array; and a jib arm assembly, having a first end being pivotally connected to the fastener element, and a second end being connected to the flange cover. The flange cover mounting and dismounting device can be fixed to the flange cover mounting surface having a corresponding fastener hole array, which is convenient for mounting and dismounting a flange cover. In addition, under most circumstances, the fastener hole array on the flange cover mounting surface is intrinsically owned by the devices, which originally can be applied to connect modules of each device or used for other applications.

An apparatus for use with a manhole and a cable, and a method thereof, is provided. The apparatus comprises a frame having an opening and a coupling mechanism for releasably securing the frame about the manhole such that the opening communicates with the manhole. The apparatus also includes a bearing secured to the frame adjacent the opening, the bearing having a surface over which a cable may travel in a manner that reduces wear on the cable when the cable is fed into or drawn through the opening in the hole.

A grate hatch and folding barrier assembly has a pair of doors that open in a cabinet-style manner and lie flat or generally flat atop a support structure within which the grate hatch and folding barrier assembly is installed. A folding barrier gate assembly may be deployed from a collapsed position to complete a four-sided barrier around the hatch or opening. The folded barrier gate assembly has two opposing barrier gates, and a pair of secondary barrier gates that connect with and extend between the two opposing barrier gates to form the four-sided barrier around the hatch opening when fully deployed. When the barrier is no longer needed, the barrier assembly may be folded or collapsed and stored in the opening beneath or below the doors and the doors may then be closed.

A manhole device and corresponding system including a manhole is described. The manhole device comprises a main body having an upper portion, a lower portion and a securing means. The securing means is engageable with the manhole such that when secured to the manhole, the upper portion protrudes above a surface level and the lower portion is retained below the surface level in the manhole. The main body provides means for alignment for construction around the manhole while providing a barrier to prevent access to vehicles, people and debris during the construction process. A method of construction is also provided.

A system and method for protecting workers, vehicles, and well-heads by enclosing well-site cellars with a series of framed plates. Each plate is perforated and configured for lifting with holes for hoisting the plates. Each plate is lipped to be retained by longitudinal edges of the cellar. A plurality of plates supports a platform for supporting a pipe wrangler adjacent a cellar based wellbore.

A manway open and close assist device that is operably connected to at least one upper hinge attachable to a manway cover and a lower hinge attached to a vessel or tank. The device comprises. A disc-like piston is mounted on a threaded input screw and at least one anti-rotation member to provide linear translation of the piston due to rotation of the input screw. A cylindrical and tubular housing that receives the threaded input screw, the anti-rotation member, and the piston, wherein the housing has a plurality of helical grooves disposed in its inner surface that receive teeth on the outer surface of the piston. The housing may be fixed to the upper hinge member(s) and a rotation of the housing and attached hinge member(s) is effectuated by rotating the input screw and resulting linear movement of the piston to open and close the manway cover.

An apparatus for use with a manhole and a cable, and a method thereof, is provided. The apparatus comprises a frame having an opening and a coupling mechanism for releasably securing the frame about the manhole such that the opening communicates with the manhole. The apparatus also includes a bearing secured to the frame adjacent the opening, the bearing having a surface over which a cable may travel in a manner that reduces wear on the cable when the cable is fed into or drawn through the opening in the hole.

A safety grill or grate for use with a camera and the like during maintenance.

In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, safety monitoring detectors/apparatuses, and a centralized controller.