Bag roll cassette and method of use
AssigneeInternational Refills Company Limited
InventorsMichel Morand, Maurice Pinsonnault
Life of this patent
Estimating the term…
Abstract
There is disclosed a bag having a tubular body with a top open end and a bottom closed end. The tubular body has a larger open diameter at the top open end. The tubular body narrows into a narrower open diameter adjacent to a bottom closed end. The tubular body in a flattened two-fold condition has a pair of side edges extending from a top edge to a bottom edge. The top edge delimits the top open end. The bottom edge delimits the bottom closed end. The pair of side edges are generally parallel to one another in a first portion adjacent to the top edge.
Claims20
A waste disposal system comprising:
- a disposal unit having a base in a bottom of the disposal unit, an upstanding wall extending from the base and delimiting part of an inner cavity, a cover mounted atop the upstanding wall and defining an opening, a tubular bag support adjacent to the cover and delimiting a bag support periphery, the tubular bag support having an inner perimeter CS and a wall thickness T, the opening providing access to the inner cavity of the waste disposal unit, a door pivotable to open and close a top access to the inner cavity via the opening;
- and
- a bag configured for being hung to the tubular bag support, the bag having:
- a tubular body with a top open end and a bottom closed end, the tubular body having a larger open diameter at the top open end, and a narrower open diameter adjacent to the bottom closed end, and
- the tubular body in a flattened two-fold condition having a pair of side edges extending from a top edge in a direction of a bottom edge, the top edge delimiting the top open end, the bottom edge delimiting the bottom closed end,
- wherein the top open end has a flattened two-fold width WA in accordance with:
- π/2(CS/π+2T)≤WA≤1.05π/2(CS/π+2T).
A waste disposal system comprising:
- a disposal unit having a base in a bottom of the disposal unit, an upstanding wall extending from the base and delimiting part of an inner cavity, a cover mounted atop the upstanding wall, a bag support adjacent to the cover and delimiting a bag support periphery, the bag support periphery having an open cross-section with an inner perimeter CS, a throat located below the bag support, the throat defining an opening having an inner perimeter CF smaller than the inner perimeter CS, the opening providing access to the inner cavity of the waste disposal unit, a door pivotable to open and close a top access to the inner cavity via the opening;
- and
- a bag configured for being hung to the tubular bag support, the bag having:
- a tubular body with a top open end and a bottom closed end, the tubular body having a hooking section and a disposal section, the tubular body having a larger open cross-section in the hooking section, and a narrower open cross-section in the disposal section, the narrower open cross-section having an unstretched flattened two-fold width WC expressed as WC≤CF/2, a weld seam defining the narrower open cross-section, the weld seam extending along the disposal section down to the bottom closed end.
Dependencies are inferred from the claim text.