A double-walled, slip fit disposable cooler can include: (1) a body having an inner liner disposed within an outer shell wherein the inner liner is removable from the outer shell, each of the inner liner and the outer shell include a base and a plurality of support walls coupled to the base, the plurality of support walls and the base defining an interior cavity, and the plurality of support walls extending upwardly from the base to form an opening at an upper terminus of the respective inner liner and outer shell; and (2) a lid configured to reversibly couple with the body, the lid shaped to cover the opening of the inner liner. The inner liner, outer shell, and the lid can be made entirely of a compostable, recyclable, and/or biodegradable material. An air gap may be formed between the inner liner and the outer shell is certain embodiments.

A box assembly includes a main body and a cap mounted on the main body. The main body is formed with a receiving space and an opening connected to the receiving space. The main body is provided with a plurality of first locking structures located adjacent to the opening. The cap includes a covering plate and a mounting member extending sideward from the covering plate. The mounting member of the cap is inserted into the opening of the main body. The mounting member of the cap is provided with a plurality of second locking structures releasably locked with the first locking structures of the main body.

A self-drilling, self-tapping bone screw is described in which the bone screw has a drill tip free of threads and having a length at least as great as about the thickness of a proximal cortical bone layer, with the drill tip having opposed lands and a helical flute between each of the lands with each of the lands having a cutting edge configured to cut bone as the drill tip is rotated into the bone with the flutes conveying the bone debris away from the drill tip, where a lead thread begins to self-tap internal threads in the proximal cortical bone layer after the drill tip has drilled through the proximal cortical bone layer so as to avoid stripping the threads formed in the bone layer. A method of installation is also disclosed.

A container includes a base, a lid, and a hinge that connects the base and lid. The containers may be configured to be vertically stackable in an closed position and still permit venting via vents in the lid of each container. The containers may also be nested in an open position with indentations in the base to facilitate separation of the containers. The indentations may be in one of two positions with an alternating pattern when the containers are in the nested arrangement.

A cup lid may comprise a main body having a cup edge at an outer periphery thereof. An upper surface of the main body has a cover comprising a concave upper surface, and a first end and a second end are respectively formed at two opposed edges of the concave upper surface at corresponding positions. A concave sip portion formed adjacent to the first end, and a plane surface is formed at a bottom portion of the sip portion. A flippable sealing member extends from the plane surface, and a sip-through opening is formed overlapped with the sealing member. A month-contact portion is formed adjacent to the first end, and a height difference formed between the month-contact portion and the sip-through opening is configured to prevent the overflow of beverage when drinking.

A cup lid may comprise a main body having a cup edge at an outer periphery thereof. An upper surface of the main body has a cover comprising a concave upper surface, and a first end and a second end are respectively formed at two opposed edges of the concave upper surface at corresponding positions. A concave sip portion formed adjacent to the first end, and a plane surface is formed at a bottom portion of the sip portion. A flippable sealing member extends from the plane surface, and a sip-through opening is formed overlapped with the sealing member. A month-contact portion is formed adjacent to the first end, and a height difference formed between the month-contact portion and the sip-through opening is configured to prevent the overflow of beverage when drinking.

A self-drilling, self-tapping bone screw is described in which the bone screw has a drill tip free of threads and having a length at least as great as about the thickness of a proximal cortical bone layer, with the drill tip having opposed lands and a helical flute between each of the lands with each of the lands having a cutting edge configured to cut bone as the drill tip is rotated into the bone with the flutes conveying the bone debris away from the drill tip, where a lead thread begins to self-tap internal threads in the proximal cortical bone layer after the drill tip has drilled through the proximal cortical bone layer so as to avoid stripping the threads formed in the bone layer. A method of installation is also disclosed.

A thread joining mechanism which possesses and for annular engaging external surface and/or internal surface, preferably for the containers with annular opening, comprising: at least an external thread line, including upper end and lower end which outspread along annular engaging external surface and/or internal surface, at least a convex fixed area and locking piece, preferably be processed as configuration by a part of said upper end and lower end which close to said external thread line, or preference is given to the convex part that integrates with said annular engaging external surface and/or internal surface, said fixed area and locking piece are set to that said annular engaging external surface and/or internal surface, and upper end and/or lower end of corresponding said thread line are separated by preset spacing, and outspread along the same direction with said thread line.

A self-drilling, self-tapping bone screw is described in which the bone screw has a drill tip free of threads and having a length at least as great as about the thickness of a proximal cortical bone layer, with the drill tip having opposed lands and a helical flute between each of the lands with each of the lands having a cutting edge configured to cut bone as the drill tip is rotated into the bone with the flutes conveying the bone debris away from the drill tip, where a lead thread begins to self-tap internal threads in the proximal cortical bone layer after the drill tip has drilled through the proximal cortical bone layer so as to avoid stripping the threads formed in the bone layer. A method of installation is also disclosed.

A closure for a system that has an opening and an outwardly projecting flange. The closure includes a base for being installed at the system opening and a closing element for occluding the closure. The base has a skirt for attaching the closure to the system, the skirt has a lower end portion for being located adjacent the system flange when the base is installed at the system opening. The skirt lower end portion has (a) a first portion defining (i) an outer side, (ii) an inner side, and (iii) a bottom end, (b) a second portion having (i) a proximal end, and (ii) a distal end, and (c) a connecting portion connecting the first portion bottom end and the second portion proximal end to accommodate initial deflection of the second portion by the system flange toward the first portion inner side during installation of the base on the system.