The disclosed invention relates to maintaining a closed and secured position of a tank fill port cap on a tank such as a fuel tank. The invention comprises a dual collar structure providing a means for the attachment of a lockable blocking device to prevent a tank fill port cap from being removed from a tank fill port nipple. The lockable blocking device is removably and securely installed on a first collar and wherein the first collar is removably and securely installed on a tank fill port nipple such as on a large commercial truck fuel tank. The first collar and the blocking device discourages or prevents the theft or vandalism of the contents of the tank. The first collar attaches to the tank fill port nipple with setscrews in a continuous one piece collar or a clamp screw in a clamping split collar configuration. A second collar is fitted over the first collar covering the first collar attachment means preventing tampering or removal of the first collar. The second collar is secured in position by the blocking device being attached to the first collar requiring the blocking device to be removed from the first collar in order to remove the second collar from the first collar, therefore, maintaining a secure and removable dual collar device locking device to secure and protect the contents of a tank by preventing the tank cap from being removed. In addition, the lockable blocking device is required to reside in a position that does not interfere with a tank pressure relief device that may be centered in the fill port cap.

A self-contained breathing apparatus includes at least one air tank having a regulator, and a back plate configured to removably receive the air tank. The back plate has a plate having a tank engagement surface for engaging at least a portion of an air tank, a receiving cradle on the plate configured to receive the regulator of an air tank, and a locking mechanism associated with the cradle and/or the plate for releasably locking the regulator and/or the cradle relative to the plate. The locking mechanism has at least one locking member configured to move between a first locked position, wherein the locking member engages the regulator and/or cradle to restrict removal of the regulator and/or the receiving cradle from the plate, and a second unlocked position, wherein the locking member disengages from the regulator and/or the cradle to permit removal of the regulator and/or the cradle from the plate.

A mounting assembly for mounting a tank including a backing plate, a foot plate secured to a bottom portion of the backing plate and a clamping assembly secured to a top portion of the backing plate spaced from the foot plate such that a tank receiving zone is defined between the foot plate and the clamping assembly. The clamping assembly includes a bracket secured to the backing plate and a clamping member pivotally secured to the bracket and movable between a clamping position and a releasing position. The clamping assembly further includes a mechanical lock-out mechanism including a lock-out member moveable between an open position wherein the clamping member is free to pivot to the releasing position and a closed position wherein the lock-out member engages a portion of the clamping member and prevents pivoting thereof. The lock-out member is biased to the open position but moves to the closed position upon application of a high lateral force.

A cartridge loader includes a lever arm, a hinge axle and a cam centered on the hinge axle, and a housing for receiving a cartridge, the housing having a first end and a second end, the first end adapted to connect to an appliance, and the second end adapted to allow the lever arm to open and close, the housing having an aperture exposing an interior of the housing, the aperture shaped to receive the cartridge and the lever arm, wherein the cam is adapted to assist in seating the cartridge in the housing when the lever arm is closed, and ejecting the cartridge when the lever arm is opened.

A transport element support assembly comprises a front plate, a back plate, and a grommet. The front plate has a first opening and a first set of holes. The back plate has a second opening and a second set of holes. A chamber is formed by the first opening and the second opening and is configured to hold a transport element. The grommet is positioned within the chamber. The transport element support assembly formed by the front plate, the back plate, and the grommet is configured to provide electrical isolation between the transport element and an aircraft structure.

The present disclosure relates to an apparatus for fixing a pressure vessel, the apparatus including: a frame part disposed to be separable from the subject and configured to support the pressure vessel; and a foothold disposed on the frame part, thereby obtaining an advantageous effect of simplifying a structure and improving a degree of design freedom and spatial utilization.

A cartridge loader includes a lever arm, a hinge axle and a cam centered on the hinge axle, and a housing for receiving a cartridge, the housing having a first end and a second end, the first end adapted to connect to an appliance, and the second end adapted to allow the lever arm to open and close, the housing having an aperture exposing an interior of the housing, the aperture shaped to receive the cartridge and the lever arm, wherein the cam is adapted to assist in seating the cartridge in the housing when the lever arm is closed, and ejecting the cartridge when the lever arm is opened.

The disclosure includes a compressed gas tank locking device that can include an elongate housing. The elongate housing may include a closed end and an open end located opposite the closed end. The elongate housing may further include a sidewall extending between the closed end and the open end, a first aperture extending through the sidewall, and a second aperture extending through the sidewall. The second aperture may be located opposite the first aperture.

A method of operating safety mechanism includes extending a safety pin to block a poppet from opening a flow path from a pressure vessel in the event of the pressure vessel being unmounted from a bracket or in the event of the bracket being unmounted from a support structure. The method includes retracting the safety pin to allow free movement of the poppet for opening the flow path only in the event of the pressure vessel being mounted to the bracket and the bracket being mounted to a support structure.

A self-contained breathing apparatus includes at least one air tank having a regulator, and a back plate configured to removably receive the air tank. The back plate has a plate having a tank engagement surface for engaging at least a portion of an air tank, a receiving cradle on the plate configured to receive the regulator of an air tank, and a locking mechanism associated with the cradle and/or the plate for releasably locking the regulator and/or the cradle relative to the plate. The locking mechanism has at least one locking member configured to move between a first locked position, wherein the locking member engages the regulator and/or cradle to restrict removal of the regulator and/or the receiving cradle from the plate, and a second unlocked position, wherein the locking member disengages from the regulator and/or the cradle to permit removal of the regulator and/or the cradle from the plate.