Abstract: The hoist comprises a crosspiece, an insertion portion, and two folding members. The insertion portion may be inserted into a receiver. The folding members are each positioned near opposite ends of the crosspiece and are pivotally coupled to the crosspiece such that each folding member may be pivoted upward and towards each other. The folding members may be lengthened and shortened. When in a folded position, the folding members are retracted and turned inward so that each folding member aligns parallel to the crosspiece. When in the extended working position, a chain is coupled to a top portion of a vertical extension member to the coupling member such that the folding members are in an upright, lifting position. A winch cable extending from the crosspiece and through a pulley positioned near the coupling member is adapted for lifting an object.

Abstract: The hoist comprises a crosspiece, an insertion portion, and two folding members. The insertion portion may be inserted into a receiver. The folding members are each positioned near opposite ends of the crosspiece and are pivotally coupled to the crosspiece such that each folding member may be pivoted upward and towards each other. The folding members may be lengthened and shortened. When in a folded position, the folding members are retracted and turned inward so that each folding member aligns parallel to the crosspiece. When in the extended working position, a chain is coupled to a top portion of a vertical extension member to the coupling member such that the folding members are in an upright, lifting position. A winch cable extending from the crosspiece and through a pulley positioned near the coupling member is adapted for lifting an object.

Abstract: A dual-pressure flare system and a method of its use. The dual-pressure flare system includes a dual-pressure flare stack having a central axis that is aligned with the center of a high-pressure outlet; a high-pressure flue having a central axis that is co-linear with the central axis of the dual-pressure flare stack; and a low-pressure flue connected to a low-pressure tip. Some exemplary embodiments of the system further include an air-assist assembly having an air-supply connection connected to an air blower and a mixing chamber, wherein the mixing chamber surrounds the low-pressure tip. In some exemplary embodiments, the air-supply connection is disposed outside the dual-pressure flare stack and the high-pressure flue.

Abstract: A dual-pressure flare system and a method of its use. The dual-pressure flare system includes a dual-pressure flare stack having a central axis that is aligned with the center of a high-pressure outlet; a high-pressure flue having a central axis that is co-linear with the central axis of the dual-pressure flare stack; and a low-pressure flue connected to a low-pressure tip. Some exemplary embodiments of the system further include an air-assist assembly having an air-supply connection connected to an air blower and a mixing chamber, wherein the mixing chamber surrounds the low-pressure tip. In some exemplary embodiments, the air-supply connection is disposed outside the dual-pressure flare stack and the high-pressure flue.

Abstract: A dual-pressure flare system and a method of its use. The dual-pressure flare system includes a dual-pressure flare stack having a central axis that is aligned with the center of a high-pressure outlet; a high-pressure flue having a central axis that is co-linear with the central axis of the dual-pressure flare stack; and a low-pressure flue connected to a low-pressure tip. Some exemplary embodiments of the system further include an air-assist assembly having an air-supply connection connected to an air blower and a mixing chamber, wherein the mixing chamber surrounds the low-pressure tip. In some exemplary embodiments, the air-supply connection is disposed outside the dual-pressure flare stack and the high-pressure flue.