Disclosed is a safety gate that includes a first fixing mechanism, a second fixing mechanism, a connection mechanism, a return spring, a screen rolling tube, and a rollup screen operative to be wound on the screen rolling tube. One end of the screen rolling tube is provided with a first mounting mechanism, and the other end is provided with a second mounting mechanism. One end of the return spring passes through the screen rolling tube to be fixedly connected to one end of the rollup screen, and the other end of the return spring is fixedly connected to the first mounting mechanism. A locking mechanism is provided in the second mounting mechanism for locking or unlocking the screen rolling tube, and is fixedly connected to the screen rolling tube. The other end of the rollup screen is provided with a handle mechanism.

This disclosure relates generally to protecting roller devices and assemblies that prevent damage caused by doors, such as garage doors. The protecting roller devices can include two separable portions each having a wheel at one end, with a connection portion therebetween. In some embodiments, the connecting portion passes through a hollow axle of a hinge to connect the separable portions. In some other embodiments, the protecting roller device can comprise a middle portion that can be connected to the hinge, such as using a fastener. The highest point of the protecting roller device can be above the highest point of the hinge, such that the protecting roller device will encounter an obstruction such as an automobile instead of the hinge. The protecting roller device can be made of a material designed to prevent or minimize damage to the obstruction.

This disclosure relates generally to protecting roller devices and assemblies that prevent damage caused by doors, such as garage doors. The protecting roller devices can include two separable portions each having a wheel at one end, with a connection portion therebetween. In some embodiments, the connecting portion passes through a hollow axle of a hinge to connect the separable portions. In some other embodiments, the protecting roller device can comprise a middle portion that can be connected to the hinge, such as using a fastener. The highest point of the protecting roller device can be above the highest point of the hinge, such that the protecting roller device will encounter an obstruction such as an automobile instead of the hinge. The protecting roller device can be made of a material designed to prevent or minimize damage to the obstruction.

A replacement link for a rolling grill enclosure having a longitudinal body disposed about a longitudinal axis, and a first end grommet contiguous with a first end of the longitudinal body, the first end grommet having a discontinuous first grommet body disposed about a first center.

A replacement link for a rolling grill enclosure having a longitudinal body disposed about a longitudinal axis, and a first end grommet contiguous with a first end of the longitudinal body, the first end grommet having a discontinuous first grommet body disposed about a first center.

A retractable curtain system is provided and includes a curtain support system, a curtain, and a retraction system. The curtain support system includes a pair of outer walls and an upper frame to provide a curtain receiving space. The curtain covers the curtain receiving space and includes a first non-transparent panel and transparent panel connected to the first non-transparent panel. The retraction system is connected to the curtain to lower and raise the transparent panel.

In one embodiment, a guide system includes a first member configured to be fixed to a structure. A coupling element is fixed to the first member. A second member is moveable relative to the first member. The second member is configured to receive the coupling element to couple the first member to the second member. There is a channel between the first member and the second member when the first member is coupled to the second member. The channel is configured to receive a portion of a closure.

The modular, retractable barrier is a room partition. The modular, retractable barrier comprises one or more barrier structures. Each of the one or more barrier structures comprises a plurality of scroll rods and a mesh barrier. The mesh barrier is a scroll like structure. When each of the plurality of scroll rods is separated the mesh barrier is deployed in the space between each of the plurality of scroll rods to form a barricade structure. When the plurality of scroll rods is later brought together, the mesh barrier is retracted. The modular, retractable barrier is a modular structure wherein any first barrier structure selected from the one or more barrier structures can be removably attached to any second barrier structure selected from the one or more barrier structures such that overall span of the barricade formed by the modular, retractable barrier can be increased.

A roller assembly for supporting a sliding security grille from an above-mounted track is disclosed. The roller assembly has a shank for securing the roller assembly to a panel of the sliding security grille and a rotatable collar that couples the shank to the wheels of the roller assembly to allow the axial rotation of the wheels about the shank. The roller assembly also includes an axle support that couples the wheels to the rotatable collar, and the axle support is sized to interfere with the lips of the track to limit the axial rotation to keep the wheels aligned in the longitudinal direction of the track.

In some embodiments, a nesting grille may include an alpha link having a top alpha link grommet, a beta link, and a plurality of cross members. In some embodiments, each of the plurality of cross members are coupled to at least one of the alpha link and the beta link. In one embodiment, the top alpha link grommet is configured to receive one of the plurality of cross members. In one embodiment, the grille is configured to be moveable between an extended state and a retracted state, the grille coiled about itself with the alpha link disposed inside of the beta link when the grille is in the retracted state.