Abstract: The invention is a wellhead stuffing box leak detector including a split-ring adapter which is installed between the stuffing box and the stuffing box cover. The leak detector functions to contain liquids which leak out of the well through the stuffing box and diverts the leakage via an overflow tube to a clear fluid reservoir. The fluid reservoir is provided with a float that moves upward when the fluid level in the fluid reservoir rises, thus activating a switch which can be used to trigger an alarm or to turn motors or engines on or off.

Abstract: A device and method are shown for detecting leaks in the differential pressure measuring passageways of an orifice meter tube. A body having a threaded end region is inserted within the differential pressure measuring passageway to be tested. A stem is slidingly received within an internal bore provided in the body when the body is engaged within the passageway. The stem has an exposed end which extends externally from the body and an inner end which is insertable through the internal bore of the body and into the passageway to be tested. A packing cap seals the region of the internal bore adjacent the exposed end of the stem and a deformable seal located on the inner end of the stem is actuated by manipulating the stem exposed end to seal off the opening of the passageway into the orifice meter tube. A test port located on the body communicates with the internal bore of the body for connection of vacuum testing equipment to test the integrity of the passageway.

Abstract: A system is disclosed for providing emergency power to a load, such as an electromagnet (36), in the event of the failure of the main power source (20). The system utilizes two series connected battery banks (26, 28) which have a combined output voltage that exceeds the output voltage of the main power source (20), and which are maintained in a fully charged state by means of a battery charger (42). Upon the failure of the main power source (20), control circuitry (58) instantaneously transfers the battery banks (26, 28) to the magnet (36) preventing the dropping of the load. A timing relay is provided to periodically sense whether the main power source (20) has been restored, and to disconnect the battery banks (26, 28) from the magnet (36) after restoration has occurred.