Abstract: To provide a high emissivity coating composition capable of exhibiting a higher emissivity at a low elevated temperature and substantially reduced formation micro craze when coated upon a substrate, and enabling a simplified application process, a high emissivity coating composition, comprising a powder mixture for providing emissivity; a binder for providing adhesion; and a co-binder for promoting adhesion and film-forming, characterized in that the powder mixture comprises at least three metal compounds of formula A(y?3)By/2Oy, wherein y is 4; A is selectable from a group of Ni and Co; B is selectable from a group of Fe and Cr; and O is oxygen; and the co-binder is an aqueous solution comprising silica in a compound of Formula (1), wherein R1 is H—Si—(CH3)2; and a compound of Formula (2), wherein R2 is CH3, is disclosed herein.

Abstract: Example embodiments relate generally to portable devices for controlling operation of a valve. The apparatus may comprise a main body, an anchoring portion, a contacting member, and a gear assembly. The anchoring portion may be securable to the main body and operable to restrict a movement of the main body relative to the valve body. The contacting member may be securable to the main body and rotatable relative to the main body. The contacting member may be operable to contact with a portion of the control member. The gear assembly may be configurable to provide, from an output portion, one or more of a plurality of selectable output torques to the control member via the contacting member based on an input torque received from an input portion. The magnitude of each selectable output torque may be greater than or equal to the magnitude of the input torque.

Abstract: Example embodiments relate generally to portable devices for controlling operation of a valve. The apparatus may comprise a main body, an anchoring portion, a contacting member, and a gear assembly. The anchoring portion may be securable to the main body and operable to restrict a movement of the main body relative to the valve body. The contacting member may be securable to the main body and rotatable relative to the main body. The contacting member may be operable to contact with a portion of the control member. The gear assembly may be configurable to provide, from an output portion, one or more of a plurality of selectable output torques to the control member via the contacting member based on an input torque received from an input portion. The magnitude of each selectable output torque may be greater than or equal to the magnitude of the input torque.