Abstract: Methods and systems are provided for a reservoir including a ratcheting support column. In one example, a support column for a reservoir includes a first portion and a second portion configured to move toward each other when pressed together. The first portion and second portion do not move away from each other when they are urged in opposite directions.

Abstract: A method for manufacturing a hollow parison includes forming a parison having a wall of multiple layers of polymer including a barrier layer, and open ends, each end having an end surface extending around the periphery of the respective end. A mold is formed having a first section and a second section facing the first section, the mold forming a cavity between the two mold sections when the mold is closed, and defining surfaces to which the parison conforms when the mold is closed. The mold sections are closed on the parison such that in the mold at each end of the parison a first portion of each end surface is compressed against a second portion of the respective end surface. The mold sections are further closed on the parison such the barrier layer of the first portion and second portion of the end surface at each parison end are joined and welded mutually along a seal line. Then the mold is opened and a hollow, formed tank is removed from the mold.

Abstract: A Compact Fluorescent Lamp (CFL's) contains approximately 4.3 mg of mercury vapor. The Compact Fluorescent Lamp (CFL) Collection Apparatus is intended to provide a safe and reliable method for residential consumers to safely dispose of their spent CFL's. The apparatus looks similar to a standard size upright vending machine. It is used by residential customers at no cost. After inserting the spent CFL into the apparatus, the CFL collection process begins and the apparatus dispenses a discount product coupon to the user. This environmental health and safety incentive is courtesy of the retail store or facility owner where the Compact Fluorescent Lamp (CFL) Collection Apparatus is located. A user inserted CFL is sealed behind an airtight entry chamber under negative vacuum pressure and mechanically fed into a collection chamber to be broken by a mechanical devise. The glass and metal fragments drop into a metal collection drum below.

Abstract: A method for securing a component to a tank includes forming the tank having a wall of multiple layers of polymer material with an opening in the wall, outer layers of polymer, and an inner layer of polymer having an inner surface whose color is dark relative to a natural color of the outer layers. The component is formed with a mounting surface of polymer. The tube wall opening is used to install the component in the tank such that the mounting surface contacts the inner surface. Energy is transmitted onto an area of a surface of the tank wall where the mounting surface contacts the inner surface. The transmitted energy is use to produce a weld between the mounting surface and the tank wall.

Abstract: A method for manufacturing a hollow parison includes forming a parison having a wail of multiple layers of polymer including a barrier layer, and open ends, each end having an end surface extending around the periphery of the respective end. A mold is formed having a first section and a second section facing the first section, the mold forming a cavity between the two mold sections when the mold is closed, and defining surfaces to which the parison conforms when the mold is closed. The mold sections are closed on the parison such that in the mold at each end of the parison a first portion of each end surface is compressed against a second portion of the respective end surface. The mold sections are further closed on the parison such the barrier layer of the first portion and second portion of the end surface at each parison end are joined and welded mutually along a seal line. Then the mold is opened and a hollow, formed tank is removed from the mold.

Abstract: A method for securing a component to a tank includes forming the tank having a wall of multiple layers of polymer material with an opening in the wall, outer layers of polymer, and an inner layer of polymer having an inner surface whose color is dark relative to a natural color of the outer layers. The component is formed with a mounting surface of polymer. The tube wall opening is used to install the component in the tank such that the mounting surface contacts the inner surface. Energy is transmitted onto an area of a surface of the tank wall where the mounting surface contacts the inner surface. The transmitted energy is use to produce a weld between the mounting surface and the tank wall.