Disclosed is a connecting device. The disclosed connecting device includes a connecting unit whose inside is penetrated and opened and closed according to rotation of a rotor provided therein, and an opening/closing unit that is rotatably coupled to the connecting unit and opens and closes the inside of the connecting unit by rotating the rotor, when being rotated with respect to the connecting unit.

A floor protector for a security access system, comprising a rigid floor assembly having front and rear edges, the floor assembly comprising at least one floor plate and a base mounted underneath the floor plate, the base being at least partially spaced from the floor plate enabling cabling to pass between the two, and elastomeric entry and exit ramps supporting the front and rear edges of the floor assembly; wherein the base has protrusions at its front and rear edges which locate within respective grooves in respective elastomeric ramps, spaced a distance above the lower surface of the ramp, so as to support the base spaced above the whole or a major part of the floor that it overlies.

A door holding device and system is disclosed that holds a door in a partially open configuration. The door holding device includes a first arm assembly that attaches to a door frame, a second arm assembly that attaches to a door, a movable clamping mechanism that clamps the first arm assembly to the door frame, and a pivot device that allows the first arm assembly and the second arm assembly pivot with respect to each other.

Disclosed is a connecting device. The disclosed connecting device includes a connecting unit whose inside is penetrated and opened and closed according to rotation of a rotor provided therein, and an opening/closing unit that is rotatably coupled to the connecting unit and opens and closes the inside of the connecting unit by rotating the rotor, when being rotated with respect to the connecting unit.

Disclosed is a connecting device. The disclosed connecting device includes a connecting unit whose inside is penetrated and opened and closed according to rotation of a rotor provided therein, and an opening/closing unit that is rotatably coupled to the connecting unit and opens and closes the inside of the connecting unit by rotating the rotor, when being rotated with respect to the connecting unit.

A floor protector for a security access system, comprising a rigid floor assembly having front and rear edges, the floor assembly comprising at least one floor plate and a base mounted underneath the floor plate, the base being at least partially spaced from the floor plate enabling cabling to pass between the two, and elastomeric entry and exit ramps supporting the front and rear edges of the floor assembly; wherein the base has protrusions at its front and rear edges which locate within respective grooves in respective elastomeric ramps, spaced a distance above the lower surface of the ramp, so as to support the base spaced above the whole or a major part of the floor that it overlies.

Described herein is a fire containment connector. It includes a female end to connect with a male coupling on a first fire hose and a male end to connect with a female coupling on a second fire hose. The fire containment connector also includes a cylindrical base that routes water from the first fire hose to the second fire hose. A cylindrical section of a sleeve rotates about a main body of the cylindrical base until the fire containment connector is in an open position. An oblong opening in the main body allows water to exit the cylindrical base and enter a hollow protuberance of the sleeve when the oblong opening and the hollow protuberance are aligned. A curved slit in the hollow protuberance expels a fan-shaped spray of water and a wall of water is formed.

Described herein is a fire containment connector. It includes a female end to connect with a male coupling on a first fire hose and a male end to connect with a female coupling on a second fire hose. The fire containment connector also includes a cylindrical base that routes water from the first fire hose to the second fire hose. A cylindrical section of a sleeve rotates about a main body of the cylindrical base until the fire containment connector is in an open position. An oblong opening in the main body allows water to exit the cylindrical base and enter a hollow protuberance of the sleeve when the oblong opening and the hollow protuberance are aligned. A curved slit in the hollow protuberance expels a fan-shaped spray of water and a wall of water is formed.

A bridge piece that can be used as a hose bridge extender or a railroad crossing. An exemplary bridge piece has a body having an undercut proximate one side, which undercut is positioned near a track when used as part of a railroad crossing.

A bridge piece that can be used as a hose bridge extender or a railroad crossing. An exemplary bridge piece has a body having an undercut proximate one side, which undercut is positioned near a track when used as part of a railroad crossing.