Abstract: In one aspect, the present invention relates to a method for displacing fluid from a pipe. The method includes engaging a fluid-displacement system with the pipe. A displacement agent is pumped into the pipe via the fluid-displacement system. Fluid present within the pipe is displaced by the displacement agent. The pipe is manipulated in a desired manner.

Abstract: In one aspect, the present invention relates to a method for displacing fluid from a pipe. The method includes engaging a fluid-displacement system with the pipe. A displacement agent is pumped into the pipe via the fluid-displacement system. Fluid present within the pipe is displaced by the displacement agent. The pipe is manipulated in a desired manner.

Abstract: In one aspect, the present invention relates to a method for displacing fluid from a pipe. The method includes engaging a fluid-displacement system with the pipe. A displacement agent is pumped into the pipe via the fluid-displacement system. Fluid present within the pipe is displaced by the displacement agent. The pipe is manipulated in a desired manner.

Abstract: In one aspect, the present invention relates to a method for displacing fluid from a pipe. The method includes engaging a fluid-displacement system with the pipe. A displacement agent is pumped into the pipe via the fluid-displacement system. Fluid present within the pipe is displaced by the displacement agent. The pipe is manipulated in a desired manner.

Abstract: In one aspect, the present invention relates to a method for displacing fluid from a pipe. The method includes engaging a fluid-displacement system with the pipe. A displacement agent is pumped into the pipe via the fluid-displacement system. Fluid present within the pipe is displaced by the displacement agent. The pipe is manipulated in a desired manner.

Abstract: In one aspect, the present invention relates to a friction-pin unit. The friction-pin unit includes a sleeve and a guide cone formed at a first end of the sleeve. A shaft is disposed coaxially within the sleeve and a plurality of friction pins extend radially outward from the shaft. The plurality of friction pins are adapted for interference-fit engagement with an inner surface of the pipe. A ring seal is circumferentially disposed around an inner surface of the sleeve. The ring seal adapted to circumferentially seal an outer surface of the pipe.

Abstract: In one aspect, the present invention relates to a method for displacing fluid from a pipe. The method includes engaging a fluid-displacement system with the pipe. A displacement agent is pumped into the pipe via the fluid-displacement system. Fluid present within the pipe is displaced by the displacement agent. The pipe is manipulated in a desired manner.

Abstract: In one aspect, the present invention relates to a friction-pin unit. The friction-pin unit includes a sleeve and a guide cone formed at a first end of the sleeve. A shaft is disposed coaxially within the sleeve and a plurality of friction pins extend radially outward from the shaft. The plurality of friction pins are adapted for interference-fit engagement with an inner surface of the pipe. A ring seal is circumferentially disposed around an inner surface of the sleeve. The ring seal adapted to circumferentially seal an outer surface of the pipe.

Abstract: A frame for a cabinet for a deodorant particularly for commodes and urinals in public facilities. The frame is composed of separate back plate, top member and bottom member composed of a resilient plastic. The top member and bottom member are snap-locked to the back plate and secured further by projections from the top and bottom members in slots in the back plate. The bottom member is a liquid-tight tray capable of processing deodorants in bottles through wicks or can with wicks, absorbent surcotas and wafers. There is a bottle holder snap-locked to the underside of the top member. A battery-blower assembly is snap-locked to the back plate. The battery poles are joined to the wires from the blower-motor by a clip. The tube which drips deodorant into a commode or urinal is secured to the outlet from the tray by ribs and bulkhead fittings are dispensed with.

Abstract: A frame for a cabinet for a deodorant particularly for commodes and urinals in public facilities. The frame is composed of separate back plate, top member and bottom member composed of a resilient plastic. The top member and bottom member are snap-locked to the back plate and secured further by projections from the top and bottom members in slots in the back plate. The bottom member is a liquidtight tray capable of processing deodorants in bottles through wicks or can with wicks, absorbent surcotas and wafers. There is a bottle holder snap-locked to the underside of the top member. A battery-blower assembly is snap-locked to the back plate. The battery poles are joined to the wires from the blower-motor by a clip. The tube which drips deodorant into a commode or urinal is secured to the outlet from the tray by ribs and bulkhead fittings are dispensed with.

Abstract: A drive for providing an air stream for generating vapor from a wick or ceramic wafers or discs containing vaporizable deordorant. The drive includes a socket assembly in which a socket for a motor of larger dimensions and a socket for a motor of smaller dimensions are mounted back-to-back. The mounting of the assembly in the deodorant apparatus is reversible so that either socket can receive the corresponding motor for driving the air.

Abstract: Apparatus including a liquid vaporizer having a first wick of linear shape, a bottle for holding the liquid to be vaporized and a gravity-flow metering device having a second wick. The bottle has a closing cap to which two tubes are connected. One tube discharges the liquid from the bottle and the other extends through the cap to the opposite end of the bottle for counteracting the vacuum which is produced when liquid is discharged. The end of the discharging tube extends outwardly of the cap further than the end of the other tube so that a pool is produced in the dispenser. The level of the pool is limited by the position of the end of the tube for counteracting the vacuum. The second wick is of J-shape; one end is immersed in the pool and the other end is suspended over the first wick so that liquid absorbed at the immersed end drips from the second wick on the first wick and is evaporated and diffused from the first wick.

Abstract: The present invention provides a vandal-proof and theft-resistant deodorant cabinet for use in public facilities and restrooms. The housing of the deodorant cabinet is specifically designed to be removably attached to the frame of the cabinet with a series of lock tabs which are inaccessible such that the housing can only be opened by someone with a special tool. Additionally, the frame is designed to be attached to a wall by screws which are hidden from view even after the housing is removed. These features make the cabinet tamper-proof and theft-resistant while still maintaining its versatility and decorativeness.