Abstract: A system and method of locking housings that have two different stages, one being generally used for transportation after an initial production stage, and the other being intended for final use of the product, preferably used on electric compressor inverters. One example presents a system for locking housings that have a base (1), a cover (2) and internal elements (4) arranged in an internal portion of the base (1), the cover (2) being locked to the base (1) by at least one fastening element (3), the fastening element (3) having first reversible locking stage (a) and second irreversible locking stage (b), the locking system being configured so that the reversible locking stage (a) will enable the opening of the housing for access to the internal elements (4), and the irreversible locking stage (b) will effect tamper-proof closure of the housing.

Abstract: A clip-on handle grip increases the surface area of a handle. The clip-on handle grip includes a grip body configured and adapted to engage a handle. A lock member is engaged with the grip body, for locking the engagement of the grip body with a handle. Such a clip-on handle grip can be used to improve ergonomics, the therefore to improve portability, for pressurized gas cylinders.

Abstract: A clip-on handle grip increases the surface area of a handle. The clip-on handle grip includes a grip body configured and adapted to engage a handle. A lock member is engaged with the grip body, for locking the engagement of the grip body with a handle. Such a clip-on handle grip can be used to improve ergonomics, the therefore to improve portability, for pressurized gas cylinders.

Abstract: A compressed gas cylinder assembly is disclosed which includes a metallic cylinder body having an upper end portion with handles and a flow control valve, and a lower end portion with a convex surface from which depends a lower support ring. A non-conductive annular collar surrounds the lower support ring of the cylinder body, and a conductive foot ring connects the annular collar to the lower support ring of the cylinder body, providing a conductive path to ground for the metallic cylinder body.

Abstract: A compressed gas cylinder assembly is disclosed which includes a metallic cylinder body having an upper end portion with handles and a flow control valve, and a lower end portion with a convex surface from which depends a lower support ring. A non-conductive annular collar surrounds the lower support ring of the cylinder body, and a conductive foot ring connects the annular collar to the lower support ring of the cylinder body, providing a conductive path to ground for the metallic cylinder body.