Abstract: Embodiments of an apparatus of the present invention generally include a trash can clip system which includes a substantially vertically-oriented lip, wherein one or more voids are disposed along the lip, and one or more substantially u-shaped clips, wherein each clip is slidingly movable along the lip, such that each clip can be provided in an engaged position with respect to the lip, or provided in a disengaged position within a lip void, and outwardly rotated in the disengaged position. A method of utilizing an embodiment of trash can clip system of the present invention is also provided.

Abstract: A ventilation opening closure to close off a standard opening in a support structure such as a roof or wall includes a base and a cover plate. The base comprises a base ring, a seal ring between the base ring and the support structure, and a bevel-shaped seal ring to align and seal the cover plate with the base ring. The closure includes a pair of complementary hinges so that the closure can be opened to the right or to the left. Alternatively, rather that the second hinge, the closure may include a latch means to more quickly shut the closure.

Abstract: A ventilation opening closure to close off a standard opening in a support structure such as a roof or wall includes a base and a cover plate. The base comprises a base ring, a seal ring between the base ring and the support structure, and a bevel-shaped seal ring to align and seal the cover plate with the base ring. The closure may include a pair of complementary hinges that the closure can be opened to the right or to the left. Alternatively, rather that the second hinge, the closure may include a latch means to more quickly shut the closure.