A tank cover lifting tool is configured to remove or attach tank covers. The tank cover lifting tool includes a handle center support, a first handle connected to one end of the handle center support, and a second handle connected to another end of the handle center support. In addition, the tank cover lifting tool includes a first lifting block that is locked on the handle center support and that is configured to engage a first tank cover handle of a tank cover. Further, the tank cover lifting tool includes a second lifting block that is locked on the handle center support and that is configured to engage a second tank cover handle of the tank cover.

A tank cover lifting tool is configured to remove or attach tank covers. The tank cover lifting tool includes a handle center support, a first handle connected to one end of the handle center support, and a second handle connected to another end of the handle center support. In addition, the tank cover lifting tool includes a first lifting block that is locked on the handle center support and that is configured to engage a first tank cover handle of a tank cover. Further, the tank cover lifting tool includes a second lifting block that is locked on the handle center support and that is configured to engage a second tank cover handle of the tank cover.

A clamping device configured to handle large and fragile objects can include large jaws extended outside a smaller jaw support. The extended areas of the second jaw can be up to 4× of the jaw support, and can contain reinforced ridges configured so that a force applied from the second body portion to the second jaw spreads to the extended areas of the second jaw outside the second body portion, for example, to at least 80%. The clamping device can include an automatic locking mechanism for open and close the jaws from an operator far away from the clamping device.

A clamping device configured to handle large and fragile objects can include large jaws extended outside a smaller jaw support. The extended areas of the second jaw can be up to 4× of the jaw support, and can contain reinforced ridges configured so that a force applied from the second body portion to the second jaw spreads to the extended areas of the second jaw outside the second body portion, for example, to at least 80%. The clamping device can include an automatic locking mechanism for open and close the jaws from an operator far away from the clamping device.

A carrier (1) for transporting objects, having a carrying limb (2) and a load handling limb (3), wherein at least one rotatably mounted load support is arranged in the region of a free end (7) of the load handling limb (3), wherein the load support includes a pivotably mounted segment (4) which lies on the free end (7) of the load handling limb (3) and, together therewith, forms a load-carrying bearing and at least one inner surface of the load handling limb (3) forms a bearing shell (5) on the free end (7) and supports the pivotably mounted segment (4).

A carrier (1) for transporting objects, having a carrying limb (2) and a load handling limb (3), wherein at least one rotatably mounted load support is arranged in the region of a free end (7) of the load handling limb (3), wherein the load support includes a pivotably mounted segment (4) which lies on the free end (7) of the load handling limb (3) and, together therewith, forms a load-carrying bearing and at least one inner surface of the load handling limb (3) forms a bearing shell (5) on the free end (7) and supports the pivotably mounted segment (4).

A shortening hook with a coupling connection for shortening sling chains in hangers, having a hook body which comprises an eyelet at the top for coupling to a suspension ring and at the bottom a coupling connection with a coupling slot which is delimited by two parallel side wings and is downwardly open for the suspension of a chain and in its central region comprises a hooking-in region, which realizes an upwardly open, rectilinearly extending shortening slot and on which a chain, which is coupled to the coupling connection, is hookable by way of its free end region. In each case, only a coupling slot and a shortening slot are realized on the hook body and, when the shortening hook is seen in side view, are mounted offset laterally with respect to one another.

A payload coupling apparatus is provided that includes a housing having an upper portion, a lower portion, and a side wall positioned between the upper and lower portions, an attachment point on the housing adapted for attachment to a first end of a tether, a slot in the housing that extends downwardly towards a center of the housing thereby forming a hook or lip on the lower portion of the housing beneath the slot, a plurality of holes in the upper portion of the housing; and a plurality of holes in the lower portion of the housing. A method of retracting a payload coupling apparatus during UAV flight is also provided.

A hook system has a mount that includes a first sidewall comprising a concave profile on a longitudinal end of the first sidewall, a second sidewall laterally offset in a fixed location relative to the first sidewall and defining a channel therebetween, the second sidewall having a second concave profile on a longitudinal end of the second sidewall. The hook system also has a first pin structure extending between the first sidewall and the second sidewall and a connector. The connector has a third concave profile, the third concave profile being configured to receive the first pin structure therein. The hook system also includes a second pin structure extending through the connector, wherein each of the first concave profile and the second concave profile are configured to receive the second pin structure therein. The connector is configured to be at least partially received within the channel.

A hook system has a mount that includes a first sidewall comprising a concave profile on a longitudinal end of the first sidewall, a second sidewall laterally offset in a fixed location relative to the first sidewall and defining a channel therebetween, the second sidewall having a second concave profile on a longitudinal end of the second sidewall. The hook system also has a first pin structure extending between the first sidewall and the second sidewall and a connector. The connector has a third concave profile, the third concave profile being configured to receive the first pin structure therein. The hook system also includes a second pin structure extending through the connector, wherein each of the first concave profile and the second concave profile are configured to receive the second pin structure therein. The connector is configured to be at least partially received within the channel.