Abstract: A manifolded fail-safe hydraulic control system provides fail-safe operation of a pipeline valve using no more than a total of 45 proprietary parts in the system. The system controls the operation of a spring return actuator, which in turn strokes the pipeline valve from the normal operating position to the fail-safe position, or from the fail-safe position to the normal operating position. The system enables the valve to automatically stroke to its fail-safe position without external power.
Abstract: A system and method for repairing and reinforcing a pipeline includes a pair of opposing composite wrap bands that are located on the external surface of the pipeline and positioned a predetermined horizontal distance from a defect area. A composite wrap is then applied over the bands to create a bridge that spans the bands and forms a cavity above the defect area. The bridge eliminates the need to clean the surface of the pipeline directly over the defect area. A second pair of bands located on the external surface of the bridge provides structural support. An actuator within the bridge monitors the pressure within the cavity and activates upon the presence of internal pressure, indicating a through-wall defect has occurred. A fitting may also be inserted into the bridge in order to pressurize the cavity and test the repair.
Abstract: A tarping system for removably covering the open top of a container resting on a platform of a truck frame, or directly on the truck frame, includes a cover support structure extending upwardly from the pivoted platform, a tarping frame displaceably secured to the cover support structure, a covering medium secured to the tarping frame and dimensioned to protectably cover the container open top, a power system extending between the cover support structure and the tarping frame for raising the tarping frame and thereby the covering medium above the container open top to permit the container to be removed from the truck frame.
Abstract: A dispenser for a sanitary shoe cover holds a stack of shoe covers with their resiliently elastic mouths in a stretched-open condition in a storage zone. Sanitary covers are carried individually from the storage zone stack to a dispensing zone. The individual shoe cover is automatically released from the dispenser in response to downward insertion of the shoe-covered foot into the stretched-open shoe cover, permitting the resiliently elastic mouth to gather into abutment with the shoe-covered foot. The process is automatically repeated to carry another individual cover to the dispensing zone in response to the upward removal of the sanitary-covered, shoe-covered foot from the dispensing zone.
Abstract: A system and method whereby on-line cleaning of black oil heater tubes and delayed coker heater tubes may be effectuated by injecting a high pressure water charge through the tubes during normal process operations so as to prevent tube fouling and heater downtime. The high pressure water charge begins the on-line cleaning process once it enters the heater tube by undergoing intense boiling and evaporation. The cleaning occurs by two methods—a scrubbing action and a shocking action. The scrubbing action occurs because of the complete turbulence caused by the water charge's intense boiling within the heater tubes. The shocking action is caused by the expansion and contraction of the heater tubes resulting from the colder water charge flowing through the heater tubes which is then followed by the hotter process fluid flowing through the heater tubes.
Abstract: A method of treating Nitinol to train the structure thereof to remain in the martensite state, including the steps of subjecting the Nitinol to a strain and while subjected to the strain, thermally cycling the Nitinol between a cold bath of about 0° C. to 10° C. and a hot bath of about 100° C. to 180° C. for a minimum of about five cycles.
Abstract: An electrical adaptor providing access to an electrical receptacle with an object placed in close proximity directly in front of the receptacle. The electrical adaptor having a pair of male connectors with a center line; a pair of female connectors having a center line; the female connectors in electric conductive communication with the male connectors; a rigid single section body having a bend such that the center line of the female conductors is oriented and fixed at an angle of 90° relative to the center line of the male connectors and the center line of the female connectors is oriented and fixed at an angle of 30° to 60° from a plane formed by the male connectors; and the body extending from the male connectors to the female connectors.
Abstract: A cap permanently indicates the occurrence of tampering with a gas service valve. A substantially square base has intersecting slots differently sized to confine correspondingly sized valve cocks against rotational motion. A dome on the base covers the slots and the valve cock. Two ties of adjustable length secure the base against the valve body. The base, dome and ties are of material which is permanently altered by application of force to disorient the mounted cap sufficiently to permit operation of the valve cock. Removal of excess portions of the ties makes reuse difficult, if not impossible. The dome may be transparent so that the orientation of the valve cock can be observed without removing the cap from the valve. Markings on the dome indicate the orientation of the valve cock when the cap was installed.
Abstract: The present invention provides a tap (10) adapted for formation of female screw-threads in a plurality of metal parts. Each female screw-thread is capable of imparting translational motion to a threaded second member engaged therewith, the threaded second member having a matching male screw-thread and the translational motion occurring on relative rotation between the first metal part and the threaded second member. The tap (10) is fluteless and comprises a threaded portion (23) with a triangular form thread (11) with an angle of thread (gamma) in the range 29°-40° and radiussed crests (16). The present invention also relates to a method of using such a tap.
Abstract: A power tong for use during installation and dismantling of pipes when drilling in the ground, such as is known from e.g. petroleum production, comprising a drive ring and at least one clamping device, where the clamping device is arranged to grip a pipe string, the power tong being equipped with a driving mechanism for rotation of the clamping device about the longitudinal axis of the pipe string, and where the clamping device communicates with a fluid supply via a swivel ring that encircles the drive ring.
Abstract: The invention regards a hydraulic cylinder (1) or a plug comprising a hydraulic cylinder for operation of anchoring and or sealing devices, where the hydraulic cylinder comprising a cylinder chamber (6), a piston head (4) within said cylinder chamber (6) forming two sub chambers (7, 7?) of said cylinder chamber (6) one on each side of the piston head (4), and a piston rod (5) which runs through the piston head (4) and said two sub chambers (7, 7?) or only one of said cub chambers. The hydraulic power unit (8) for operation of the hydraulic cylinder (1) is situated at least partly within the parts forming the hydraulic cylinder (1) itself, preferably the piston head (4) and or the piston rod (5).
Abstract: A plug for closing an opening in the sidewall of a pipe, including a base member having a radial flange portion, a tubular portion and an annular elastomeric seal member slideably received on the base member tubular portion and in engagement with the flange portion. A rigid compression member is slideably received on the base member tubular portion and in contact with the elastomeric member and has a frusto-conical circumferential surface. A plurality of rigid segmented slips are received on the compression member and have teeth for biting into the cylindrical sidewall when displaced on the frusto-conical surface. An actuation member is received on the base member tubular portion providing a surface in engagement with the segmented slips. A tightening nut can be tightened to cause the segmented slips to lock the plug in position and to sealably close the pipe cylindrical sidewall.
May 10, 2006
Date of Patent:
June 16, 2009
TDW Delaware, Inc.
Phillip K. Morrison, Eric N. Freeman, Mark A. Morgan, Tony R. Garrison
Abstract: A method and a fly swatter for practicing the method of killing a fly resting on a support surface without smashing the fly against the support surface, including a swatter having, at the outer end of an elongated handle, a head portion formed of a generally planer, pliable, foraminous sheet having on an inner surface a peripheral lip, including the step of striking, by use of the handle, the head portion to instantaneously encapture the fly between the sheet inner surface and the support surface and within the peripheral lip, compressing air that passes out through the foraminous sheet suddenly forcing the fly against the sheet inner surface, the impact of the fly contacting the sheet inner surface and/or the aerodynamic shock of compressed air serving to kill the fly without compressing the fly against the support surface.
Abstract: This invention teaches a process that includes extraction of gas in which the presence of foam results in the carry over in the outlet gas stream of excessive liquids and/or solids, including the steps of injecting the foam laden gas stream tangentially into a cyclonic separator having an axial gas outlet and a liquid outlet, under conditions in which the inlet stream is subjected to at least about 150 G's, the outlet gas being substantially liquids/solids free and the outlet liquid stream being conveyed for disposal or further processing.
July 26, 2006
Date of Patent:
May 12, 2009
National Tank Company
Robert A. Lanning, F. Stephen Brusso, Gary W. Sams
Abstract: An improved dynamics processing control system clamps a level detected control signal at a level equal to a predefined threshold point. In one embodiment, a clamped level detected signal feeds a filter with very slow response characteristics. By comparing the difference between the input and the output of the system a differential control signal generated. The differential control signal is used to provide a continuously variable, program dependant output signal when the input signal drops below a threshold point. In another embodiment of the invention, both the attack and release times of the system are varied in response to a differential control signal.