A closure is provided for a pressure vessel or pipelines that can provide quick and easy access to the interior of a pressure vessel or pipeline, and means for a pressure tight seal between the hub and door. The closure can incorporate means for mechanically fastening the door to the hub using an external split clamp ring actuated by a toggle mechanism. A locking mechanism can be provided to safeguard against unintended closure actuation, and provides a layer of redundancy to the holding characteristics of the toggle mechanism. The locking mechanism can be interlocked to a pressure alert system to ensure any differential pressure condition contained within the closure is detected prior to disengaging the locking mechanism and actuating the toggle mechanism.

A closure is provided for a pressure vessel or pipelines that can provide quick and easy access to the interior of a pressure vessel or pipeline, and means for a pressure tight seal between the hub and door. The closure can incorporate means for mechanically fastening the door to the hub using an external split clamp ring actuated by a toggle mechanism. A locking mechanism can be provided to safeguard against unintended closure actuation, and provides a layer of redundancy to the holding characteristics of the toggle mechanism. The locking mechanism can be interlocked to a pressure alert system to ensure any differential pressure condition contained within the closure is detected prior to disengaging the locking mechanism and actuating the toggle mechanism.

A device for reducing impact forces upon a surface includes a base comprising a first contact portion and a transition portion, a contact member disposed between the base and the surface; and a biasing portion disposed between the first contact portion of the base and the surface. At least a first portion of an impact force upon the surface is transferred from the contact member to the base, and a second portion of the impact force is subsequently returned to the surface, the second portion being less than the first portion.

A security window mounting frame assembly, system, and method of installing building security windows configured to control passage of a compression wave and temperature gradients around a security window pane.

A security window mounting frame assembly, system, and method of installing building security windows configured to control passage of a compression wave and temperature gradients around a security window pane.

Disclosed is a sectional door adapted to withstand high wind load and impact from flying debris. The door includes a glazing bead to secure glazing panels into frames formed by the rails and stiles of the door. The bead is connected with the frame by engagement between extensions on the bead and respective lips along the edges of the frame. The bead is pressed against the frame, causing the extension to elastically flex to allow the extensions to fit between the lips. The extensions are received in gaps formed by the lips to secure the bead in place on the frame. Force on the door cause by high winds is communicated from the glazing panel through the bead and to the frame. The door also includes reinforcements arranged along the rails to communicate forces, such as high wind load forces, from the frame to the edges of the doorway surrounding the door. The reinforcements include endcaps that increase stiffness of the rails to prevent the rails from buckling during severe weather events.

Disclosed is a sectional door adapted to withstand high wind load and impact from flying debris. The door includes a glazing bead to secure glazing panels into frames formed by the rails and stiles of the door. The bead is connected with the frame by engagement between extensions on the bead and respective lips along the edges of the frame. The bead is pressed against the frame, causing the extension to elastically flex to allow the extensions to fit between the lips. The extensions are received in gaps formed by the lips to secure the bead in place on the frame. Force on the door cause by high winds is communicated from the glazing panel through the bead and to the frame. The door also includes reinforcements arranged along the rails to communicate forces, such as high wind load forces, from the frame to the edges of the doorway surrounding the door. The reinforcements include endcaps that increase stiffness of the rails to prevent the rails from buckling during severe weather events.

Door systems having a vision light system that provides resistance to and protection from the elements, such as but not limited to physical impacts (e.g., penetration from projectiles), protection from fire, protection from fluid penetration, or the like. The vision light systems may be customizable in order to provide different protection rating levels depending on the requirements of the structures in which vision light systems will be used. The vision light systems allow for the use of vision lights that extends past the envelope of the door. The vision light systems may utilize one or more interchangeable and/or adjustable components, such as one or more reinforcement members, one or more restraining members, one or more trim members, or the like may be utilized to secure different vision lights within the vision light system in order to provide the desired level of protection.

A window assembly and method of forming a window assembly that is constructed to maintain separation of the environments separated by the window assembly when the window assembly is subjected to impacts and cooperate with the structure of associated with defining the window opening without detracting the operability of the window assembly relative to openings defined by the structure of third party original equipment manufacturers structures.

Disclosed is a sectional door adapted to withstand high wind load and impact from flying debris. The door includes a glazing bead to secure glazing panels into frames formed by the rails and stiles of the door. The bead is connected with the frame by engagement between extensions on the bead and respective lips along the edges of the frame. The bead is pressed against the frame, causing the extension to elastically flex to allow the extensions to fit between the lips. The extensions are received in gaps formed by the lips to secure the bead in place on the frame. Force on the door cause by high winds is communicated from the glazing panel through the bead and to the frame. The door also includes reinforcements arranged along the rails to communicate forces, such as high wind load forces, from the frame to the edges of the doorway surrounding the door. The reinforcements include endcaps that increase stiffness of the rails to prevent the rails from buckling during severe weather events.