An enclosure for electrical installations includes a bottom and a cover fastened to the bottom by a fastening device including a latch which, supported by a bearing, is turnable in relation to the bottom to open/close the fastening device. An arm is bearing-mounted to the latch. The cover has a detent to receive the arm and to fasten the cover to the bottom by the arm. The detent is located in a recess formed in an edge of the cover. Attached to the arm there is a cover piece to attach to the detent in the recess of the cover. The cover piece includes first and second outer surfaces which at the recess of the cover make the outer surfaces of the cover uniform, such that the discontinuities formed by the recess of the cover on its top and side surfaces are concealed.

A multi-key lock core includes a housing, a driving cylinder, a plurality of circular lock plates, and a lock rod. The driving cylinder is disposed in the housing, a sidewall of the driving cylinder is provided with a penetration portion, and the driving cylinder is rotatable to the penetration portion to correspond to an engagement recessed portion. The circular lock plates are disposed in the driving cylinder and each include an outer edge provided with a first recessed portion, and the outer edge of at least one of the circular lock plates is further provided with a second recessed portion. The lock rod is disposed in the penetration portion, and may partially enter the engagement recessed portion to restrict rotation of the driving cylinder. A first key may push the circular lock plates to rotate to the first recessed portion to correspond to the penetration portion, so that the lock rod can move to partially enter the first recessed portion and detach from the engagement recessed portion. The second key may push the circular lock plates to rotate to the second recessed portion and the first recessed portion to correspond to the penetration portion, so that the lock rod can move to partially enter the second recessed portion and the first recessed portion and detach from the engagement recessed portion.

A multi-key lock core includes a housing, a driving cylinder, a plurality of circular lock plates, and a lock rod. The driving cylinder is disposed in the housing, a sidewall of the driving cylinder is provided with a penetration portion, and the driving cylinder is rotatable to the penetration portion to correspond to an engagement recessed portion. The circular lock plates are disposed in the driving cylinder and each include an outer edge provided with a first recessed portion, and the outer edge of at least one of the circular lock plates is further provided with a second recessed portion. The lock rod is disposed in the penetration portion, and may partially enter the engagement recessed portion to restrict rotation of the driving cylinder. A first key may push the circular lock plates to rotate to the first recessed portion to correspond to the penetration portion, so that the lock rod can move to partially enter the first recessed portion and detach from the engagement recessed portion. The second key may push the circular lock plates to rotate to the second recessed portion and the first recessed portion to correspond to the penetration portion, so that the lock rod can move to partially enter the second recessed portion and the first recessed portion and detach from the engagement recessed portion.

A storage container securing system, in one embodiment, may include a base for receiving at least a portion of a storage container, such as a cooler, and a shelf adjustably positioned within the base to adjust the location of the storage container. In another embodiment, a storage container securing system is described having slidable inserts configured to matingly engage a slot in a storage container. In another embodiment, a storage container securing system is described having a receiving slot configured to receive a protrusion of a storage container.

A storage container securing system, in one embodiment, may include a base for receiving at least a portion of a storage container, such as a cooler, and a shelf adjustably positioned within the base to adjust the location of the storage container. In another embodiment, a storage container securing system is described having slidable inserts configured to matingly engage a slot in a storage container. In another embodiment, a storage container securing system is described having a receiving slot configured to receive a protrusion of a storage container.

A jobsite box includes a body, the body having an interior, an exterior, and a lid, a key pad positioned on the exterior of the body, the key pad being in communication with a controller positioned on the body, a locking mechanism connected to the body, the locking mechanism being configured to lock and unlock the jobsite box, a battery positioned in the interior of the body, the battery configured to power the locking mechanism. The controller is configured to lock or unlock the locking mechanism when a predetermined code is entered into the key pad.

A breathing assistance apparatus has a lid and latch assembly configured for one-handed operation. The apparatus also includes a hinge assembly that separates when over-rotated but that reengages upon closing of the lid onto the main body of the apparatus.

A breathing assistance apparatus has a lid and latch assembly configured for one-handed operation. The apparatus also includes a hinge assembly that separates when over-rotated but that reengages upon closing of the lid onto the main body of the apparatus.

A latch assembly having a latch buckle and a latch tongue. The latch buckle includes: a buckle housing; a first lateral aperture disposed along a first side of the buckle housing; a second lateral aperture disposed along a second side of the buckle housing; a pair of h-shaped levers, each pivotally coupled to an interior of the buckle housing; a spring ring disposed between the pair of h-shaped levers; a pair of springs, each spring being coupled to an interior of the buckle housing and an h-shaped lever; and a buckle aperture disposed along a top of the buckle housing and between the pair of h-shaped levers. The latch tongue includes: a tongue plate; a plate spacer, coupled to the tongue plate; and a latch flange, coupled to the plate spacer, configured to be received by the buckle aperture. The latch tongue is selectably coupled to the latch base.

A latch assembly having a latch buckle and a latch tongue. The latch buckle includes: a buckle housing; a first lateral aperture disposed along a first side of the buckle housing; a second lateral aperture disposed along a second side of the buckle housing; a pair of h-shaped levers, each pivotally coupled to an interior of the buckle housing; a spring ring disposed between the pair of h-shaped levers; a pair of springs, each spring being coupled to an interior of the buckle housing and an h-shaped lever; and a buckle aperture disposed along a top of the buckle housing and between the pair of h-shaped levers. The latch tongue includes: a tongue plate; a plate spacer, coupled to the tongue plate; and a latch flange, coupled to the plate spacer, configured to be received by the buckle aperture. The latch tongue is selectably coupled to the latch base.