Abstract: A protective coating system for a railway structure having a waterproof membrane and a ballast mat. The waterproof membrane is disposed on the railway structure. The ballast mat further has a ballast protection coating and a sealing layer. The ballast protection coating is a rubber compound and is disposed on the waterproof membrane. The sealing layer is disposed on the ballast protection layer.

Abstract: A method and apparatus for coating transportation components such as a bridge deck with a coating. The coating includes a sealant and rubber mixed with a resin and a foaming agent. The apparatus includes a hopper for the rubber, a impingement gun for the resin and a gun assembly that combines the rubber and resin together at a combined nozzle for spraying.

Abstract: A protective coating system for a railway structure having a waterproof membrane and a ballast mat. The waterproof membrane is disposed on the railway structure. The ballast mat further has a ballast protection coating and a sealing layer. The ballast protection coating is a rubber compound and is disposed on the waterproof membrane. The sealing layer is disposed on the ballast protection layer.

Abstract: A waterproof expansion joint comprises a ballast protection plate and at least one locating device configured to retain the ballast protection plate over a deck joint. A flexible sealing member located below the ballast protection plate can include at least one flange portion and at least one expansion feature. Each expansion feature can include a shape preformed into the flexible sealing member extending downward into the deck joint and configured to deflect, enabling variation in the width of the flexible sealing member to match the width of the deck joint.

Abstract: A method and apparatus for coating transportation components such as a bridge deck with a coating. The coating includes a sealant and rubber mixed with a resin and a foaming agent. The apparatus includes a hopper for the rubber, a impingement gun for the resin and a gun assembly that combined the rubber and resin together at a combined nozzle for spraying.

Abstract: A protective coating system for a railway structure having a waterproof membrane and a ballast mat. The waterproof membrane is disposed on the railway structure. The ballast mat further has a ballast protection coating and a sealing layer. The ballast protection coating is a rubber compound and is disposed on the waterproof membrane. The sealing layer is disposed on the ballast protection layer.

Abstract: A waterproof expansion joint comprises a ballast protection plate and at least one locating device configured to retain the ballast protection plate over a deck joint. A flexible sealing member located below the ballast protection plate can include at least one flange portion and at least one expansion feature. Each expansion feature can include a shape preformed into the flexible sealing member extending downward into the deck joint and configured to deflect, enabling variation in the width of the flexible sealing member to match the width of the deck joint.

Abstract: A seismic-resistant fluid reservoir cover includes a plurality of panels and a network of flexible membranes coupled to adjacent panels. The flexible membranes are made of a potable water approved material, and the panels and the membranes create a fluid tight seal. Each panel in the reservoir cover is able to move along three directional axes independently of the adjacent panels while maintaining the fluid tight seal, at least in part because of the flexibility or the slack in the flexible membrane. A support member, such as a backer rod, may also be positioned in the spaces between the panels.

Abstract: A waterproof expansion joint comprises a ballast protection plate and at least one locating device configured to retain the ballast protection plate over a deck joint. A flexible sealing member located below the ballast protection plate can include at least one flange portion and at least one expansion feature. Each expansion feature can include a shape preformed into the flexible sealing member extending downward into the deck joint and configured to deflect, enabling variation in the width of the flexible sealing member to match the width of the deck joint.

Abstract: A protective coating system for a railway structure having a waterproof membrane and a ballast mat. The waterproof membrane is disposed on the railway structure. The ballast mat further has a ballast protection coating and a sealing layer. The ballast protection coating is a rubber compound and is disposed on the waterproof membrane. The sealing layer is disposed on the ballast protection layer.

Abstract: A waterproof expansion joint comprises a ballast protection plate with one or more centering tabs. Waterproof receptacles, or T-cups, are used to provide a waterproof layer under the ballast protection plate and around the centering tabs. Sealing tape and a spray-based waterproof membrane are installed with the T-cups. Once the ballast protection plate is placed over the deck joint with centering tabs extending downward into the T-cups, a bond breaker is applied. Finally, a second layer of waterproof membrane is applied to the top of all elements of the waterproof expansion joint.

Abstract: A seismic-resistant fluid reservoir cover includes a plurality of panels and a network of flexible membranes coupled to adjacent panels. The flexible membranes are made of a potable water approved material, and the panels and the membranes create a fluid tight seal. Each panel in the reservoir cover is able to move along three directional axes independently of the adjacent panels while maintaining the fluid tight seal, at least in part because of the flexibility or the slack in the flexible membrane. A support member, such as a backer rod, may also be positioned in the spaces between the panels.

Abstract: An air plenum tank comprising a plurality of outlets aerate and agitate wastewater in a liquid treatment facility through the use of high pressured air creating cracks on the floor of the air plenum tank. Advantageously, the cracks are sealed using a system and method comprising isolating and positively pressurizing the air plenum tank and then sealing the tank using a sealant compound.

Abstract: This invention relates to steerable catheters. More particularly, this invention relates to steerable catheters comprising a flexible catheter comprising a spring coil body defining a lumen, the spring coil body having a flexible covering thereon; a deflection wire, the distal end of the deflection wire being attached to the distal end of the spring coil body; and control means attached to the proximal end of the catheter, the proximal end of the deflection wire extending through the control means and the control means having a torque means which fixedly engages said deflection wire.

Abstract: This invention relates to corporeal catheters. More particularly, this invention relates to an outer exchange catheter system comprising an outer catheter sheath and at least one inner catheter having a control means, the outer catheter sheath extending less than the full length of each inner catheter and being slidable thereover. This invention also relates to the method of using this outer exchange catheter system.

Abstract: This invention relates to steerable catheters. More particularly, this invention relates to a steerable catheter comprising a flexible catheter member having distal and proximal ends and one or more lumens, the single lumen or one of the lumens being closed at its distal end, the one or more other lumens being open, for introduction of a central guide wire or other desired object; a deflection wire having distal and proximal ends and axially extending the length of the catheter member through the lumen having the closed end, the distal end of the deflection wire being embedded in the closed end; and control means attached to the proximal end of the catheter member, the proximal end of the deflection wire extending to the control means and the control means having an engaging means which fixedly engages the deflection wire.

Abstract: This invention relates to corporeal catheters. More particularly, this invention relates to an outer exchange catheter system comprising an outer catheter sheath and at least one steerable inner catheter having a control means, said outer catheter sheath extending less than the full length of each said inner catheter and being slidable thereover.

Abstract: This invention relates to steerable thru-lumen catheters and a method of using same, especially in the cardiovascular field.

Abstract: The present invention is directed to a steerable guidewire. More specifically, the invention is directed to a guidewire which comprises flexible tubing having proximal and distal ends and inner and outer surfaces, a helically wound flexible spring coil having proximal and distal ends, the proximal end of the spring coil being attached to the flexible tubing and the distal end of the spring coil comprising stretched coils, a deflection wire extending through the flexible tubing and spring coil, the deflection wire having proximal and distal ends, optionally a control wire having proximal and distal ends, the proximal end of the control wire being attached to the spring coil proximal to the stretched coils, and a rounded tip engaging the distal end of the spring coil, the distal end of the deflection wire, and the distal end of the control wire.

Abstract: The present invention is directed to a steerable guidewire. More specifically, the invention is directed to a guidewire which comprises flexible tubing having proximal and distal ends and inner and outer surfaces, a helically wound flexible spring coil having proximal and distal ends, the proximal end of the spring coil being attached to the flexible tubing and the distal end of the spring coil comprising stretched coils, a deflection wire extending through the flexible tubing and spring coil, the deflection wire having proximal and distal ends, optionally a control wire having proximal and distal ends, the proximal end of the control wire being attached to the spring coil proximal to the stretched coils, and a rounded tip engaging the distal end of the spring coil, the distal end of the deflection wire, and the distal end of the control wire.