A cart transports items between a controlled environment (e.g., a clean room or an airlock to a clean room) and an uncontrolled environment. The cart has a main body that carries the items, and a removable and interchangeable wheel base assembly. A first wheel base assembly is located in the uncontrolled environment and a second wheel base assembly is located in the controlled environment. The user can push the cart (with the first wheel base assembly) up to the second wheel base assembly at the boundary between the controlled environment and the uncontrolled environment. The user then unlocks the main body from the first wheel base assembly, slides the main body onto the second wheel base assembly, and locks the main body to the second wheel base assembly. An autoclavable storage and transport cart can hold several wheel base assemblies.

An expandable hand truck configured to transport one or more containers or other type of load includes a frame having a base platform and a back fixedly attached to the base platform and at least two wheels fixedly mounted on the frame. The base platform extends in a substantially horizontal direction and the back extends in a substantially vertical direction when the expandable hand truck is in an upright position. The frame also includes one or more first attachment features on a first side that permit a first removable gullwing to be attached to and removed from the frame. The frame further includes one or more second attachment features on a second side that permit a second removable gullwing to be attached to and removed from the frame. An expanded hand truck is provided when the first gullwing and the second gullwing are coupled to the frame.

A handcart, belonging to the technical field of handcart technology, includes a handcart body, a pull rod and a folding box; the pull rod is provided with a mounting component, the mounting component is rotatably connected to the handcart body; a bottom of the folding box is provided with an insertion component, a top of the folding box is configured with a first groove configured to be inserted in by the insertion component, the handcart body is configured with a second groove configured to be inserted in by the insertion component; the handcart body is rotatably connected to a first snap component, and the folding box is configured with a first snapping groove configured to be snap-fitted with the first snap component

A method for producing a part includes providing a first and a second precoated sheet (1,2), butt welding the first and second precoated sheets (1) to obtain a blank (15), and heating the blank (15) to a heat treatment temperature at least 10 C. lower than the full austenitization temperature of the weld joint (22) and at least 15 C. higher than a minimum temperature T.sub.min: $T_{\min }\left(C.\right)=\mathrm{AC}3\left(\mathrm{WJ}\right)-\frac{{}_{\mathrm{IC}}^{\max }}{100}\left(\mathrm{Ac}3\left(\mathrm{WJ}\right)-673-40\mathrm{Al}\right).$ where Ac3(WJ) is the full austenitization temperature of the weld joint (22) ${}_{\mathrm{IC}}^{\max }=(1-\frac{\left(1+\right)(}{}$

A folding pallet truck comprises a frame module, a lifting module installed on the frame module and comprising a mount, and a handle module comprising a tube in rotating fit with the mount, wherein a first constraint part is formed between an end, rotatably connected to the mount, of the tube and the mount, and the handle module is folded by detaching the first constraint part or is unfolded by reassembling the first constraint part. The handle module can be folded to be stored or be unfolded and locked to be used by detaching or reassembling the first constraint part formed between the tube of the handle module and the mount of the lifting module, operation is easy, and the pallet truck has a small size when stored.

This invention is for an improved combination chaise lounge and tote cart and especially to an chaise lounge and tote cart which can be folded to a storage position and can be quickly converted between a tote cart and a chaise lounge.

A detachable wheeled bag carrying apparatus that can be attached and detached from a bag, wherein the detachable wheeled bag carrying apparatus allows the bag to be wheeled. The bag has a rectangular shaped material that acts as a strap to bind the bag to the detachable wheeled bag carrying apparatus. The rectangular shaped material can form a pocket to store the detachable wheeled bag carrying apparatus.

A convertible cargo case for a wagon is provided. The cargo case has a housing and a frame. The frame has frame members in a first plane and frame members in a second plane substantially parallel to the first plane. Cross members connect the frame members in the first plane with the frame members in the second plane. The housing has a first side wall, a second side wall, a third side wall, a fourth side wall, and a bottom wall defining a cavity. The housing is releasably secured to the frame with a plurality of locks. The cargo case is positioned adjacent a rear of the wagon in a cargo use configuration, and the wagon is positioned partially within the cavity of the housing in a storage configuration.

A child seat includes a seat portion fixedly connected with a first coupling part, a connector that is pivotally connected with the first coupling part of the seat portion and is operable to detachably engage with a corresponding structure provided on a child supporting apparatus, a locking mechanism operable to lock and unlock the connector with respect to the seat portion, and a backrest frame fixedly connected with a second coupling part and operatively connected with the locking mechanism, the second coupling part being pivotally connected with the first coupling part, wherein the backrest frame is rotatable in a folding direction to cause the locking mechanism to unlock the connector with respect to the seat portion and in an unfolding direction to cause the locking mechanism to lock the connector with respect to the seat portion.

A system comprises a wheel assembly including a wheel shaft and first and second wheels rotationally coupled to the wheel shaft; a first bracket coupled to a device rack and including a first open slot, the first open slot including a receiving portion configured to receive the wheel shaft at a first position, a delivery portion configured to deliver the wheel shaft upon tilting the rack forwards, and a locking portion configured to secure the wheel shaft upon tilting the rack backwards; and a second bracket configured to be coupled to the rack on a second side and including a second open slot, the second open slot including a receiving portion configured to receive the wheel shaft at a second position, a delivery portion configured to deliver the wheel shaft upon tilting the rack forwards, and a locking portion configured to secure the wheel shaft upon tilting the rack backwards.