A method for assembling a box structure includes elementary parts assembled along an understructure of stiffeners and skins. The understructure and skins are made of composite material with a polymer matrix. The method includes sizing the box structure for the loads to which it is subjected and for a glued assembly. A map of the loads on the structure is obtained and a first load limit is defined depending on the probability of the structure being damaged. The understructure and the skins are assembled by gluing them. An additional layer is applied that covers the assembled elementary parts to areas of the assembled box structure where the first load limit is reached.

A module mount having at least one module that can be mounted on the module mount, wherein the module can be mounted on the module mount via at least one caulking element, such that the respective caulking element, which is composed of a thermoplastic, extends through a hole in a section of the respective module that can be mounted on the module mount made of a thermoplastic or thermoset, and is hot-caulked at an end projecting out of the hole, wherein at least one projection is formed on the section of the respective module that can be mounted on the module mount in the region of the respective hole of the section of the respective module that can be mounted on the module mount made of the thermoplastic or thermoset, which projection is engaged in a press fit with the hot-caulked end of the respective caulking element.

Corner joints and methods of forming corner joints are described herein. The corner joints may provide the appearance of a mortise and tenon joint on both the exterior and interior surfaces of the corner joint, but include a mitered connection within the joint. Structures including at least one of the corner joints are also described.

A mechanical part configured to be placed under torque. The mechanical part includes an inner tube having, a corrugated web, and an outer shell. The inner tube has an outer tube circumference, a tube axial direction, and a tube length. The corrugated web has a plurality of peaks and a plurality of troughs, a height measured as a difference between one of the peaks and one of the troughs, and a web length perpendicular to the height and in the tube axial direction. The outer shell has an inner shell circumference, an outer shell circumference, and a shell length. The plurality of troughs is affixed to the outer circumference of the inner tube. The plurality of peaks is affixed to the inner shell circumference of the outer shell. The web length is aligned with the tube length and the shell length.

A punch for a staking/riveting device having a workpiece receiving opening formed on a pressing surface of the punch to make a workpiece, projecting from a contacting surface, that is at least partially introducible into the receiving opening in response to the pressing surface of the punch approaching the contacting surface and is deformable in conformity with an inner contour of the receiving opening; at least a partial surface of the inner contour being formed in a spherical/ellipsoidal cap shape; and the inner contour of the receiving opening having an inner-contour intermediate surface between a rim of the inner contour on the pressing surface and the spherical or ellipsoidal cap-shaped partial surface that is a cylinder truncated cone jacket-shaped. A staking/riveting device, a joining partner for cooperating with the punch or with the staking/riveting device, a device having at least one staked/riveted workpiece, and a method for staking/riveting a workpiece.

A firearm holster includes a plate that is folded to form a cavity. The cavity is defined by a first sidewall, a trigger sidewall adjacent to the first sidewall, a second sidewall adjacent to the trigger sidewall, a barrel sidewall adjacent to both the first and second sidewalls, and a muzzle end wall. The muzzle end wall is adjacent to the first sidewall, the trigger sidewall, the second sidewall and the barrel sidewall. The firearm holster also includes a support wrap that at least partially surrounds the cavity and is fused to one or more of the first sidewall, the barrel sidewall, and the second sidewall.

A firearm holster includes a plate that is folded to form a cavity. The cavity is defined by a first sidewall, a trigger sidewall adjacent to the first sidewall, a second sidewall adjacent to the trigger sidewall, a barrel sidewall adjacent to both the first and second sidewalls, and a muzzle end wall. The muzzle end wall is adjacent to the first sidewall, the trigger sidewall, the second sidewall and the barrel sidewall. The firearm holster also includes a support wrap that at least partially surrounds the cavity and is fused to one or more of the first sidewall, the barrel sidewall, and the second sidewall.

A firearm holster includes a first half shell and a second half shell. The first half shell is nested in the second half shell to form a cavity therebetween for enclosing one or both of a barrel and a trigger area of a firearm. The cavity further includes an opening for receiving the firearm and otherwise having no other gaps or openings.

Apparatus configured to enable the staking of an interfacing part to a base is provided. The apparatus includes a retainer configured to convey a stake and the interfacing part to the base. The apparatus is further configured to provide a heat and/or vibration to effect the simultaneous attachment of the stake to the base and the interfacing part to the base.

Apparatus and methods for installing composite rivets are disclosed. One disclosed method comprises: inserting a composite rivet blank comprising a composite material into a hole in a part; heating the composite rivet blank using Joule heating while the composite rivet blank is in the hole; and then finishing the composite rivet blank.