Abstract: A thief hatch for a pressure vessel system including an annular seal flange attachable to an opening of a pressure vessel of the pressure vessel system, a piston coupled to the seal flange, an annular seal assembly located between an outer surface of the piston and an inner surface of the seal flange, and a biasing element coupled to the piston and configured to apply a biasing force against the piston to bias the piston towards a first position corresponding to a closed configuration of the thief hatch.

Abstract: The present invention relates generally to the field of smart device holders. More specifically, the present invention relates to a body-worn smart device holder that is comprised of a generally half-cylindrical or generally c-shaped body, a compartment for storing earphones, and a rotating fastener that allows a smart device to be secured to the device. The body of the device preferably resembles the dimensions of a human arm and may appear in a plurality of shapes and sizes suitable to the needs of the user while being made from a hard or rigid material. Further, the device is also comprised of a rotating fastener to allow for the convenient viewership of a smart device at various angles.

Abstract: An apparatus for monitoring condition of a braking system includes a brake pad with a friction material, a plurality of light transmission fibers, and a plurality of optical image fibers. A first end of each of the plurality of light transmission fibers coupled to one or more light emitting-diodes and a second end of each of the plurality of light transmission fibers directed towards a contact surface of the brake rotor. A first end of each of the plurality of optical image fibers coupled to an image sensor and a second end of each of the plurality of optical image fibers directed towards the contact surface of the brake rotor, where the plurality of light transmission fibers and the plurality of optical image fibers are configured to capture an image of at least a section of the contact surface of the brake rotor.

Abstract: An apparatus for monitoring condition of a braking system includes a brake pad with a friction material, a plurality of light transmission fibers, and a plurality of optical image fibers. A first end of each of the plurality of light transmission fibers coupled to one or more light emitting-diodes and a second end of each of the plurality of light transmission fibers directed towards a contact surface of the brake rotor. A first end of each of the plurality of optical image fibers coupled to an image sensor and a second end of each of the plurality of optical image fibers directed towards the contact surface of the brake rotor, where the plurality of light transmission fibers and the plurality of optical image fibers are configured to capture an image of at least a section of the contact surface of the brake rotor.