Abstract: An aquarium having a compartment for a holding a video device that is viewable through an aquarium tank for conveniently enhancing the viewing experience of the aquarium. The device includes a filtration system that is concealed from the viewer and that filters the water around the video device without exposing the video device to water or any other elements of the aquarium's habitat.

Abstract: An aquarium device having a compartment for a video playing device that is viewable through an aquarium tank for conveniently enhancing the viewing experience. The device includes a filtration system that is concealed from the viewer and that filters the water around the video device without exposing the device to water or any other elements of the aquarium's habitat.

Abstract: An aquarium device having a compartment for a video playing device that is viewable through an aquarium tank for conveniently enhancing the viewing experience. The device includes a filtration system that is concealed from the viewer and that filters the water around the video device without exposing the device to water or any other elements of the aquarium's habitat.

Abstract: A muffler for an internal combustion engine has a casing forming an expansion chamber therein. An inlet duct is connected to the casing and projects into the expansion chamber and discharges exhaust fluid into the expansion chamber. The casing tapers in an upstream direction to form a pocket for receiving reverse flow of the exhaust gases and to minimize reverse flow from flowing back into the inlet duct in an upstream direction. In the discharge end of the inlet duct are a set of primary vanes and a set of secondary vanes. The vanes are secured to the walls of the duct and extend radially toward the central area of the duct. The vanes are angled in order to deflect the exhaust fluid flow into a swirling movement as it is discharged into the expansion chamber and maintains that swirling movement while passing out of the casing through the outlet duct.

Abstract: A method of protecting the finish on a vehicle employs the immersing of a sheet of waste cellulose fiber material in an aqueous bath to render the sheet of cellulose fiber material pliable. A form in the shape of a portion of the vehicle to be protected is provided and the sheet of pliable material is placed over the form. The pliable cellulose material is dried to add rigidity to the same in the form of a shield. The finished shield is then placed on a vehicle to protect the finish characteristics such as exterior paint, trim, glass, and the like.