Patent application number | Description | Published |
20100154318 | RING BEAM AND METHOD FOR CONSTRUCTING THE SAME - A ring beam element, a ring beam and a method of constructing a ring beam from a plurality of ring beam elements is disclosed. The ring beam can support a shell or wall of a tank. The ring beam element comprises a reinforced concrete body, preferably having a metal base plate anchored therein, and a plurality of tensile conduits extending circumferentially there through. Ideally, the reinforced concrete body will have interlocking surfaces such that the ring beam elements interlock with one another when circumferentially juxtaposed. Tensile members can be placed through the plurality of tensile conduits and tensioned and anchored by anchors to clamp a plurality of juxtaposed ring beam elements together. Ideally, the base plates of a plurality of the ring beam elements can be connected or welded together to form an annular ring of base plates. The ring beam elements can be mounted upon piles to provide level surfaces to the base plates so that the metal base plates can be readily connected together to form an annular ring beam. | 06-24-2010 |
20100154319 | TANK SHELL FOR AN OUTER LNG CONTAINMENT TANK AND METHOD FOR MAKING THE SAME - A shell for an outer LNG containment tank and a method of making the shell from a plurality of precast reinforced concrete shell elements are described. The shell elements having a precast concrete body to which are anchored a radially inwardly facing liner plate and a pair of circumferentially spaced apart side plates which depend radially outwardly from the liner plate. The shell elements can be arranged upon a ring beam with side plates abutting one another. The side plates are welded together to form radially and vertically extending stiffener ribs which are circumferentially spaced around the shell. As these stiffener ribs provide great structural support, the shell can be constructed with minimal or no cast in place structural joints being needed to construct the shell. Ideally, the shell elements have bottom base plates welded to a ring beam or foundation and top end plates that are welded together to form an annular ring thus enhancing the structural strength of the shell. A roof can be mounted to the shell to create an outer LNG containment tank. | 06-24-2010 |
20100154320 | COMPOSITE CONCRETE ROOF FOR AN OUTER LNG CONTAINMENT TANK AND METHOD OF MAKING THE SAME - A method for constructing a composite concrete roof on an outer LNG containment tank is disclosed. The roof includes a roof assembly and a plurality of precast reinforced concrete roof elements. The roof assembly is mounted on a tank shell. At least some of the roof elements including a concrete body and embedded metal plates adapted to be welded to the roof assembly. The roof elements are welded to the roof assembly to provide additional strength and stiffness to the roof assembly. Preferably, no or minimal cast in place concrete structural joints are needed to join the roof elements to the roof assembly and or top of the shell. Ideally, the roof assembly includes a membrane and mounting beams connected to the membrane. The embedded plates of the roof assemblies are welded to the mounting beams on the roof assembly. The method may further include mounting or welding the roof elements to the roof assembly while workers access the interior of the shell to perform work therein. A tank having a composite concrete roof made according to the above method is also disclosed. | 06-24-2010 |
20100154332 | BASE MAT ASSEMBLY AND METHOD OF CONSTRUCTING THE SAME - A precast reinforced concrete base mat element, a base mat assembly and method for constructing a base mat assembly from a plurality of the base mat elements are described. The base mat element comprises a concrete body having first and second conduits extending there through in first and second generally perpendicular directions and a liner plate anchored in the concrete body. Preferably the concrete bodies have interlocking surfaces formed there on. A plurality of the base mat elements may be juxtaposed together with the interlocking surfaces interlocking with one another and with the tensile members extending through the first and second tensile conduits and being post-tensioned and anchored about the base mat elements to clamp the base mat elements together. The liner plates may then be welded together to form a a generally planar membrane. In one embodiment, at least one of the first and second tensile conduits is located above and one below the horizontal center planes of the concrete bodies to limit the base mat elements from displacing vertically relative to one another. | 06-24-2010 |
20120023845 | Base Mat Assembly And Method For Constructing The Same - A precast reinforced concrete base mat element, a base mat assembly and method for constructing a base mat assembly from a plurality of the base mat elements are described. The base mat element comprises a concrete body having first and second conduits extending there through in first and second generally perpendicular directions and a liner plate anchored in the concrete body. Preferably the concrete bodies have interlocking surfaces formed there on. A plurality of the base mat elements may be juxtaposed together with the interlocking surfaces interlocking with one another and with the tensile members extending through the first and second tensile conduits and being post-tensioned and anchored about the base mat elements to clamp the base mat elements together. The liner plates may then be welded together to form a generally planar membrane. In one embodiment, at least one of the first and second tensile conduits is located above and one below the horizontal center planes of the concrete bodies to limit the base mat elements from displacing vertically relative to one another. | 02-02-2012 |
Patent application number | Description | Published |
20090009390 | DUAL BAND QUADPACK TRANSMIT/RECEIVE MODULE - A multi-channel, dual-band, radio frequency (RF) transmit/receive (T/R) module, for an active electronically scanned array, is provided. The module includes a compact, RF manifold connector and at least four T/R channels. Each of the T/R channels includes a notch radiator, a diplexer coupled to the notch radiator, a power amplifier, including at least one dual-band gain stage, coupled to the notch radiator, a low noise amplifier, including at least one lower-band gain stage and at least one upper-band gain stage, coupled to the diplexer, and a T/R cell, including a phase shifter, a signal attenuator and at least one dual-band gain stage, coupled to the power amplifier, the low noise amplifier and the manifold connector. | 01-08-2009 |
Patent application number | Description | Published |
20100219015 | CLIMB ASSIST SYSTEM - A motorized climb assist assembly is provided. The motorized climb assist assembly includes a looped belt, an attaching member, a motor assembly and a fall arrest system. The attaching member is coupled to the looped belt. A safety harness is in turn coupled to attaching member. The motor assembly includes a motor and a drive sheave. The motor has a drive shaft. The drive sheave is coupled to the drive shaft. In addition, the drive sheave is in contact with the looped belt. The fall arrest system is integrated with the drive sheave and is configured to limit the looped belt movement as the result of a fall event. | 09-02-2010 |
20100219016 | FALL ARREST ASSEMBLY - A fall arrest assembly that includes a rotational drum, at least one pawl and a catch is provided. The rotational drum is configured to rotate in response to a movement of a lifeline. The least one pawl is in rotational communication with the rotational drum. The at least one pawl is further configured to pivot about a pivot connection in response to select rotational velocities of the rotational drum. The at least one pawl is also configured to engage the catch when the at least one pawl pivots in response to the select rotational velocities of the rotational drum to stop the rotation of the rotational drum and movement of the lifeline. An elastic bushing for each pivot connection is also used. Each elastic bushing is positioned about an associated pivot connection of an associated pawl. The elastic bushings deform in shape as an associated pawl engages the at least one portion of the catch. | 09-02-2010 |
20100224448 | Safety Device with Fall Arrest and Descending Modes - A safety device with fall arrest and descending modes includes a housing, a drum, a lifeline, first and second brake assemblies, and a control. The drum is rotatably operatively connected to the housing. The lifeline has an intermediate portion interconnecting a first end and a second end. The first end is operatively connected to the drum. The first and second assemblies are operatively connected to the drum. The control is operatively connected to the first and second brake assemblies and has a first position and a second position. The first position selectively engages the first brake assembly in a descending mode and the second position selectively engages the second brake assembly in a fall arrest mode. | 09-09-2010 |
20110084157 | Self-Retracting Lifeline with Reserve Lifeline Portion - A self-retracting lifeline includes a reserve lifeline portion and comprises a housing, a drum rotatably operatively connected to the housing, and a lifeline. A stop member is operatively connected to an intermediate portion a distance from a first end of the lifeline. A bumper portion is operatively connected to the housing and includes a bore through which the lifeline extends, the bore being smaller than the stop member to prevent passage of the stop member through the bore and out of the housing. At least a portion of the bumper portion disconnects from the housing when a predetermined force is exerted on the bumper portion to allow the stop member to exit the housing. | 04-14-2011 |
20110084158 | Self-Retracting Lifeline with Disconnectable Lifeline - A self-retracting lifeline includes a replaceable lifeline and comprises a housing, a drum rotatably operatively connected to the housing, a lifeline, and a locking member operatively connected to the drum and moveable from an unlocked position to a locked position for locking the drum relative to the housing to assist in replacing the lifeline. | 04-14-2011 |
20110100755 | BRAKE ASSEMBLY FOR A SELF-RETRACTING LIFELINE ASSEMBLY - A braking system for a self-retracting lifeline assembly is provided. The braking system includes a housing, a ratchet cam and a clutch assembly. The housing includes sidewalls that form, at least in part, a cavity. The sidewalls of the housing terminate in a connecting surface that extends around the cavity. The sidewalls have a plurality of notches spaced along interior surfaces of the sidewalls. Each notch extends from the connecting surface a select distance in the interior surfaces of the sidewalls of the housing. The ratchet cam includes an inner edge that defines a central cam opening. The inner edge of the ratchet cam has a plurality of inward extending teeth. The ratchet cam further has an outer edge. The outer edge has a plurality of outward extending fingers. Each finger terminates in a finger tip. Each finger tip is received in an associated notch in the interior surface of the housing. The clutch assembly is operationally configured to engage at least one tooth of the plurality of inward extending teeth of the ratchet cam in response to a lifeline unwinding from the assembly at a rate greater than a predetermined maximum angular velocity. | 05-05-2011 |
20110240403 | Lifeline Connector for Use with Self-Retracting Lifeline with Disconnectable Lifeline - A lifeline connector assembly for releasably interconnecting a first portion and a second portion of a lifeline, the first portion including a first distal end to which a first stop is operatively connected, the second portion including a second distal end to which a second stop is operatively connected, comprises a first stop operatively connected to the first distal end, a second stop operatively connected to the second distal end, and a receiving member operatively connected to the second stop and configured and arranged to receive at least a portion of the first stop thereby interconnecting the first portion and the second portion. | 10-06-2011 |
20110297778 | SELF-RETRACTING LIFELINE WITH DISCONNECTABLE LIFELINE - A self-retracting lifeline is provided. In one embodiment, the self-retracting lifeline includes a housing, a drum, an activation assembly, a lifeline and a connector, the drum is received in the housing. The activation assembly is received in the housing. Moreover, the activation assembly is operationally coupled to the drum to selectively rotate the drum. The connector is coupled proximate an end of the lifeline. The connector has a connector passage. The connector passage is configured and arranged to selectively couple the lifeline to the drum. | 12-08-2011 |
20120298445 | RETRACTABLE HORIZONTAL LIFELINE ASSEMBLY - A retractable horizontal lifeline assembly includes a lifeline, a drum, and a crank. The lifeline has an intermediate portion interconnecting a first end and a second end. The drum has a base and is rotatable. The first end of the lifeline is operatively connected to the drum and the intermediate portion of the lifeline is windable about and paid out from the base. The drum is operatively connected to a first anchorage structure. The second end is operatively connected to a second anchorage structure. The crank is configured and arranged to be releasably connectable to the drum and is rotatable to rotate the drum and tension the lifeline. The crank includes a tension indicator to provide indication when the tension in the lifeline has reached a predetermined level. The crank is capable of tensioning the lifeline to a level greater than the predetermined level. | 11-29-2012 |
20120298446 | RETRACTABLE HORIZONTAL LIFELINE ASSEMBLY - A retractable horizontal lifeline assembly includes a lifeline windable about and paid out from a rotatable drum and a housing. The housing includes a first connector and is configured and arranged to house the drum and the lifeline wound about a base of the drum. The first connector is operatively connected to a first anchorage structure, the lifeline is pulled outward from proximate the housing thereby paying out at least a portion of the lifeline from the drum, a second connector operatively connected to the lifeline is operatively connected to a second anchorage structure, and the lifeline is tensioned using a crank that rotates the drum to increase the tension in the lifeline and provides indication when the tension in the lifeline reaches a predetermined level. | 11-29-2012 |
20130256441 | SELF-RETRACTING LIFELINE WITH DISCONNECTABLE LIFELINE - A self-retracting lifeline is provided. In one embodiment, the self-retracting lifeline includes a housing, a drum, an activation assembly, a lifeline and a connector, the drum is received in the housing. The activation assembly is received in the housing. Moreover, the activation assembly is operationally coupled to the drum to selectively rotate the drum. The connector is coupled proximate an end of the lifeline. The connector has a connector passage. The connector passage is configured and arranged to selectively couple the lifeline to the drum. | 10-03-2013 |