Abstract: A prefabricated service bay typically constructed of fiberglass has a tank-like profile with an access opening for providing access to the underside of a vehicle. The prefabricated service bay is placed within an excavated hole within a vehicle service stall. The tank has a rounded section normal to the longitudinal axis of the bay. Drainage fill, such as pea gravel, is used between the bottom portion of the excavation and the bottom portion of the tank. A concrete cap is poured and cured over the top portion of the tank adjacent the opening. This poured and cured concrete serendipitously forms paired tracks for rolling placement of the wheels of a vehicle being serviced and additionally serves to key and maintain the service bay within the ground. Provision is made to provide a central standing area--preferably in the form of a raised platform--in the center bottom portion of the tank. Entrance and exit to the bay is provided through an end passageway with optional side staircase entry.

Abstract: Apparatus for retarding oxidation of a liquid that only partly fills a container formed with an opening through which a liquid can be poured comprises a cap mountable adjacent to the opening, an inflation tube insertable through the cap, and an air bladder connected to the inflation tube and positionable within the container. A pump is connected to the inflation tube and positionable outside the container. A valve is connected to the pump and the inflation tube. An exhaust tube is insertable through the inflation tube and has an inlet portion positionable in the container and an outlet portion positionable outside the container.

Abstract: A free-standing fragrance candle comprises an outer shell, an inner core and a wick. The shell is formed of paraffin, a wax, a mixture thereof, or any of these materials in combination with fragrance oil. The shell has a melting point high enough that the shell stands freely and is not tacky at room temperature. The core is formed of fragrance oil and a carrier therefor. The fragrance oil in the core constitutes from 5% to 12% of the total weight of the core. The carrier is petrolatum, a low melting point wax, paraffin, or a mixture thereof. The core has a melting point substantially lower than the melting point of the shell and low enough to form a molten pool within the shell and to ensure a substantial release of fragrance into the surrounding atmosphere as the candle burns. The shell constitutes a container and provides structural support for the core.