A vertical pivoting gate operator for positioning a gate between an open position and a closed position is provided. The gate operator includes a motor drive assembly including a motor and a linkage assembly mechanically connecting a motor output to the gate such that in response to actuation of the motor, the linkage assembly transmits an opening force to positioning the gate toward the open position, and a closing force, for positioning the gate toward the closed position. A counterbalance assembly including a biasing member is operable to release stored energy against an input link to rotate a gate arm shaft so as to urge the gate toward the open position and to increase stored energy in response to rotation of the gate traveling toward the closed position to act against the gate as it approaches the closed position.

Provided is a train platform safety device for preventing a safety accident, the train platform safety device including: at least one pair of lift drive units 10 installed at a position selected in a section from an entrance of a platform, where a train enters, to an exit of the platform; a plurality of movable bodies 20 provided inside the lift drive units 10 so as to be movable in a vertical direction; rope groups 30A and 30B including a plurality of ropes connecting the movable bodies 20 in a horizontal direction; and an interval maintaining unit 100 configured to connect, in the vertical direction, any one rope in the rope group 30B positioned at an upper side and any one rope in the rope group 30A positioned at a lower side so that a vertical interval between the rope groups 30A and 30B is maintained when the rope groups 30A and 30B are staggered as the plurality of movable bodies 20 and the rope groups 30A and 30B are moved downward by operations of the lift drive units 10. According to the present invention, the plurality of rope groups may be connected to one another in the vertical direction to maintain the vertical interval therebetween, thereby preventing a passenger from passing between the rope groups. In addition, the present invention has an effect of minimizing sagging of the rope group. Furthermore, the present invention has an effect of improving durability and service life because the structure is simple and the maintenance may be easily performed.

A collapsible gate includes a first side column, a second side column, a collapsible barrier assembly, a receiver, and a powertrain. The collapsible barrier assembly is disposed between the first and second side columns. The collapsible barrier is configured to transition between a collapsed position and a raised position. The receiver is disposed between the first side column and the second side column and is configured to receive at least a portion of the collapsible barrier assembly when it is in the collapsed position. The receiver has a first end coupled to the first lower portion of the side column and an opposite second end coupled to the second lower portion of the second side column. The powertrain is configured to transmit mechanical power to the collapsible barrier assembly to facilitate transitioning the collapsible barrier assembly between the collapsed position and the raised position.

A mezzanine gate assembly is adapted to provide ingress and egress to an elevated platform while safely preventing falls and injury to workers positioned thereon or even below the mezzanine platform. The mezzanine assembly generally includes a support assembly which has a first and second upright support members. Each of the first and second upright support members has a base portion fixedly attached to the elevated platform and an upper portion which is configured to function as a post adjacent to the respective terminating railing. The mezzanine gate assembly comprises an interior gate assembly and an exterior gate assembly. Generally, each of the interior and exterior gate assemblies are designed to move and pivot through a path of motion which provides a plurality of points of travel. The interior gate assembly is operably designed to engage with and deviate rearward while the load is delivered to the platform via forklift in order to provide a barrier between the respective railing and side of the load. The exterior gate assembly is operably designed to provide a barrier while the load of goods is manually removed from the pallet.

A variety of systems, methods, and compositions are disclosed, including in one method, a security arm barrier system, the system comprising: a drive stanchion mounted to a first substructure; an arm barrier coupled to the drive stanchion, wherein the arm barrier further comprises: a first member, wherein a proximal end of the first member is coupled to the drive stanchion; a second member, wherein a proximal end of the second member coupled to a distal end of the first member; and an articulating joint that couples the first member and the second member, and an energy absorbing material disposed within the first member and the second member; and a receiver stanchion mounted to a second substructure capable of receiving a distal end of the second member.

Disclosed is a positioning device for a fence supplemented with a pet guardrail. The pet guardrail is fixed to a side of an existing fence in a side-attaching manner, and an upper crossbar and a lower crossbar of the pet guardrail are fixed to an outer side of the existing fence by bolts and covered and protected by front and rear cover plates, and both ends of the upper crossbar and lower crossbar are sheathed with a side sleeve for protection. In this way, the grid spacing of the existing fence can be reduced to prevent pets from escaping, and the overall appearance is aesthetic, and the overall structure avoids people or pets from being scratched by the bolts and just requires simple operations for the installation.

A gate may generally include a gatepost and a plurality of rails pivotally connected to the gatepost and having a plurality of posts hingedly attached to at least one of the plurality of rails. The gate may include a lift system having a translating device in communication with a sprocket, wherein the lift system provides an adjustable force to rotate the plurality of rails from a horizontal position to an upward position. The adjustable force may be provided by a tumbuckle. The gate may include a ground anchor system that allows axial rotation of the plurality of rails about a longitudinal axis of the gatepost.

This invention provides a sealing spacer for spacing apart two window panes to form a window assembly. The spacer has an elongated, flexible strip having opposed edge surfaces and opposed side surfaces. The spacer also has a fiber reinforced polymer layer over the elongated, flexible strip. The opposed edge surfaces undulate with crests and troughs. The spacer has an activatable sealant for directly sealingly securing the flexible strip to each of the two window panes. The activatable sealant is on each of the opposed side surfaces of the fiber reinforced polymer. The invention also provides methods for making the spacer and window assembly.

A variety of systems, methods, and compositions are disclosed, including in one method, a security arm barrier system, the system comprising: a drive stanchion mounted to a first substructure; an arm barrier coupled to the drive stanchion, wherein the arm barrier further comprises: a first member, wherein a proximal end of the first member is coupled to the drive stanchion; a second member, wherein a proximal end of the second member coupled to a distal end of the first member; and an articulating joint that couples the first member and the second member, and an energy absorbing material disposed within the first member and the second member; and a receiver stanchion mounted to a second substructure capable of receiving a distal end of the second member.

This invention provides a sealing spacer for spacing apart two window panes to form a window assembly. The spacer has an elongated, flexible strip having opposed edge surfaces and opposed side surfaces. The spacer also has a fiber reinforced polymer layer over the elongated, flexible strip. The opposed edge surfaces undulate with crests and troughs. The spacer has an activatable sealant for directly sealingly securing the flexible strip to each of the two window panes. The activatable sealant is on each of the opposed side surfaces of the fiber reinforced polymer. The invention also provides methods for making the spacer and window assembly.