Abstract: An equipment enclosure free air cooling assembly includes an air outlet arranged to deliver air to inside an equipment enclosure and an air inlet arranged to receive air from outside the equipment enclosure. An air flow pathway is provided through which air entering the air inlet must pass to reach the air outlet. An adjustable screen assembly has a screen filter element. An adjustment mechanism is operable to selectively utilize different regions of the screen filter element for filtering air passing through the air flow pathway at different times.

Abstract: An equipment enclosure with temperature control components, an equipment enclosure temperature control unit, an equipment enclosure temperature control method, and various modular temperature control subassemblies are respectively disclosed for controlling the temperature of equipment in an equipment chamber. The temperature control components and unit may be implemented with a modular design wherein an air-conditioning unit is selectively mountable on an air handler assembly. The temperature control components and unit may support air-conditioning, free-air-cooling, free-air-cooling-with-return, and heating modes of operation. An emergency-free-air-cooling mode of operation may also be supported.

Abstract: An equipment enclosure free air cooling assembly includes an air outlet arranged to deliver air to inside an equipment enclosure and an air inlet arranged to receive air from outside the equipment enclosure. An air flow pathway is provided through which air entering the air inlet must pass to reach the air outlet. An adjustable screen assembly has a screen filter element. An adjustment mechanism is operable to selectively utilize different regions of the screen filter element for filtering air passing through the air flow pathway at different times.

Abstract: An equipment enclosure with temperature control components, an equipment enclosure temperature control unit, an equipment enclosure temperature control method, and various modular temperature control subassemblies are respectively disclosed for controlling the temperature of equipment in an equipment chamber. The temperature control components and unit may be implemented with a modular design wherein an air-conditioning unit is selectively mountable on an air handler assembly. The temperature control components and unit may support air-conditioning, free-air-cooling, free-air-cooling-with-return, and heating modes of operation. An emergency-free-air-cooling mode of operation may also be supported.

Abstract: A high-security enclosure includes a base, a cover and a lock system. The lock system includes a base portion and a cover portion. The lock system base portion includes one or more fixed lock bars. The lock system cover portion includes one or more movable lock bars. Each movable lock bar is generally perpendicular to, and arranged to engage, one of the fixed lock bars. The lock system cover portion further includes a lock bar retraction assembly coupled to the one or more movable lock bars for retracting the movable lock bar(s) substantially simultaneously out of engagement with the fixed lock bar(s). A security drive mechanism is coupled to the lock bar retraction assembly to drive the lock system.

Abstract: A high-security enclosure includes a base, a cover and a lock system. The lock system includes a base portion and a cover portion. The lock system base portion includes one or more fixed lock bars. The lock system cover portion includes one or more movable lock bars. Each movable lock bar is generally perpendicular to, and arranged to engage, one of the fixed lock bars. The lock system cover portion further includes a lock bar retraction assembly coupled to the one or more movable lock bars for retracting the movable lock bar(s) substantially simultaneously out of engagement with the fixed lock bar(s). A security drive mechanism is coupled to the lock bar retraction assembly to drive the lock system.

Abstract: A lock structure for a container having a first part carrying a resilient latch and a second part carrying a latch retainer, the lock structure including a first housing mounted on the second part and having a chamber for containing the latch retainer, and a second housing mounted on the second part of the container and containing a key-operated latch-moving member for biasing the latch out of latching engagement with the latch retainer, the latch-moving member being of a configuration to be moved to a non-unlatching position by the resilient latch when the latch-moving member is not actuated to an unlatching position by a key.

Abstract: A fastener including a body, a shroud rotatably mounted on the body, and a resilient retaining ring located in opposed grooves between the shroud and the body, one end of the body extending outwardly beyond the shroud, and a frustoconical outer surface on the shroud which has its larger side proximate the end of the body which extends beyond the shroud.

Abstract: A filter cage for impeding access to a cable filter within an enclosure having an enclosure wall and a plurality of bosses extending outwardly therefrom and containing a cable filter and associated cables, the filter cage including a cage wall, a pair of side walls and a pair of end walls depending from the cage wall, cutouts in the end walls for receiving the cables, apertures in the cage wall for receiving screws for fastening the filter cage to the bosses, openings in the cage wall for permitting viewing of the filter within the cage, the end walls and side walls being spaced so as to abut the bosses on the enclosure wall to thereby locate the apertures in the cage wall in proper alignment with the bosses for receiving screws which pass through the apertures and into the bosses.

Abstract: A lock structure for use on an enclosure having first and second sections which are assembled and disassembled by a relative rectilinear telescopic sliding engagement including a first channel having a first web and a first pair of legs secured to the first section, a latch pivotally mounted on the first channel and being biased by a spring to a locking position, a second channel having a second web and a second pair of legs secured to the second section so that the first pair of legs fit between the second pair of legs when the first and second sections are being moved into assembled relationship, and an end on one of the second legs for functioning as a keeper for the latch when the first and second sections are in fully assembled relationship.

Abstract: A lock structure for mounting between first and second supporting surfaces including a cup mounted on the first surface, a housing mounted on the cup, a rocker arm located within the housing and pivotally mounted on the cup, a keeper mounted on the second supporting surface, interengaging surfaces between the rocker arm and the keeper for effecting a locking relationship therebetween, a spring located between the housing and the rocker arm to bias the rocker arm in a locking position relative to the keeper, and an actuator shaft keyed to the rocker arm and rotatably mounted in the housing and having a curvilinear groove therein for receiving a mating key for pivoting the actuator shaft and the rocker arm keyed thereto out of locking engagement with the keeper.