The present invention relates to a load floor structure for automobile vehicles composed of polyurethane glass fiber composite. The composite is formed by combining polyurethane resin and fiber glass to form an organized sandwich that harnesses the individual strengths and properties of each component. The glass fib...

The present invention relates to a roof garnish assembly (hereinafter, “assembly”) that includes: a front end and a rear end; a clip mounting; a plurality of positive mountings; and a plurality of carrier mountings. The assembly is adapted to be mounted on the vehicle roof by means of said plurality of positive moun...

The invention provides a face cut mechanism incorporated into the metallic end boss of a Type IV composite pressure cylinder to prevent rotational movement during valve torquing. The end boss, which interfaces with a polymeric liner, features two or more precisely machined face cuts located on diametrically opposite...

The invention discloses a lightweight and non-corrosive Type IV composite pressure vessel comprising a polymeric liner and a fiber-reinforced resin overwrap. The liner directly interfaces with the stored fluid and is fabricated from high-performance, corrosion-resistant polymers such as HDPE or PA12. The overwrap in...

The present invention discloses a frame belt assembly designed for securing Type IV Composite Overwrapped Pressure Vessels (COPVs) in vehicular applications. The invention features an adaptive belt incorporating integrated elastomeric grooves that maintain continuous contact with the outer surface of the COPV, even ...

The present invention relates to the field of high-pressure gas storage systems, particularly to Type IV Composite Overwrapped Pressure Vessels (COPVs) incorporating polymeric liners. Specifically, it concerns a dome-shaped polymeric liner design that facilitates easy cleaning and ensures minimal residual contaminat...

The present invention discloses a hybrid composite wrapping technique for Type IV composite overwrapped pressure vessels (COPVs), wherein an external layer of glass fiber reinforced polymer (GFRP) is wound over a carbon fiber reinforced polymer (CFRP) base structure. The CFRP structure bears the internal pressurized...

The invention discloses an optimized fiber winding pattern and angle system for Type IV Composite Overwrapped Pressure Vessels (COPVs). The method involves a strategic arrangement of hoop, helical, and polar windings at calculated angles (0° to 90°) to counteract both hoop and axial stresses. The approach integrates...

The invention relates to a Type IV composite overwrapped pressure vessel (COPV) featuring a polymeric liner with integrally molded, geometrically optimized dome-shaped ends. These dome ends are designed to provide a continuous curvature from the cylindrical body, improving the efficiency and structural performance o...

The present invention relates to a threaded sealing mechanism employed between a metallic valve and an end boss in high-pressure gas containment systems, specifically Type IV composite overwrapped pressure vessels (COPVs). The invention provides a robust, high-integrity sealing method utilizing parallel threads on t...

The invention discloses a lightweight, non-corrosive high-pressure storage cylinder of the Type IV Composite Overwrapped Pressure Vessel (COPV) category, suitable for storing gases such as compressed natural gas (CNG), hydrogen, and other pressurized fluids. The pressure vessel consists of a polymeric liner that is ...

The present invention relates to a Type IV composite compressed natural gas (CNG) cylinder, designated as T4 CNG Cylinder PAS-Initial, featuring a multilayer polymer liner and a filament-wound composite overwrap. The inner liner comprises multiple thermoplastic layers, including a polyglycolic acid (PGA) barrier lay...

A novel mechanical interlocking system for Type 4 gas cylinders is disclosed. A V-shaped protruding projection, machined inside a metallic boss, interacts with a blow-molded polymeric liner. Upon torque-driven assembly, this projection induces a V-notch groove into the liner neck, creating a permanent mechanical int...

Disclosed is a parallel-threaded valve engagement system for composite gas cylinders featuring a centrally embedded metallic boss. The boss is machined with a 1.125-12 UNF 12B internal thread, and the valve is sealed using an elastomeric O-ring located near the thread root. This design minimizes torque requirements,...

The present invention discloses a novel integration system for valve threads employing parallel threading (1.125-12 UNF 2B) in conjunction with a centrally located metallic end boss embedded within the polymeric liner of a Type 4 composite pressure cylinder. Unlike conventional tapered-thread designs, the proposed s...

The invention relates to an optimized polymeric liner shape used in Type IV composite pressure vessels for storing high-pressure gases such as Compressed Natural Gas (CNG) and hydrogen. The novel configuration involves precise design parameters for the cylindrical section diameter, dome transition radius, and dome h...