Unopenable canister for vacuum cleaner
OwnerMichael W. Seitzinventor
Life of this patent
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Abstract
A dust container for a vacuum cleaner comprises a vessel, a reed valve, and a filter. The vessel has a longitudinal axis and an annular cross section transverse to the longitudinal axis. The vessel has a first end and a second end, a tangential inlet near the first end, and an axial outlet at the first end. The second end is closed, and the vessel is impervious except for the inlet and the outlet. A vacuum actuated valve biased toward a closed position is positioned to seal the inlet of the vessel, and a filter is positioned in covering relationship with the outlet of the vessel. Dust is trapped within the vessel which can be disposed of as a unit together with the valve and filter and can be replaced with a fresh unit.
Claims15
Apparatus comprising
- a vessel having a longitudinal axis and an annular cross section transverse to the longitudinal axis, said vessel having a first end and a second end, a tangential inlet near the first end, and an axial outlet at the first end, said second end being closed, said vessel being impervious except for the inlet and the outlet,
- a vacuum actuated valve biased toward a closed position positioned to seal the inlet, and
- a filter positioned in covering relationship with the outlet,
- wherein the vessel is unopenable without being damaged.
Apparatus comprising
- a vessel having a longitudinal axis and an annular cross section transverse to the longitudinal axis, said vessel having a first end and a second end, a tangential inlet near the first end, and an axial outlet at the first end, said second end being closed, said vessel being impervious except for the inlet and the outlet,
- a vacuum actuated valve biased toward a closed position positioned to seal the inlet, and
- a filter positioned in covering relationship with the outlet,
- wherein the vessel is of monolithic construction and can only be destructively opened.
Apparatus comprising
- a vessel having a longitudinal axis and an annular cross section transverse to the longitudinal axis, said vessel having a first end and a second end, a tangential inlet near the first end, and an axial outlet at the first end, said second end being closed, said vessel being impervious except for the inlet and the outlet,
- a vacuum actuated valve biased toward a closed position positioned to seal the inlet, and
- a filter positioned in covering relationship with the outlet,
- wherein the vacuum actuated valve is in the form of a resilient reed valve that generally circumferentially follows an inside surface of the vessel when in the closed position to seal the inlet.
Apparatus comprising
- a vessel having a longitudinal axis and an annular cross section transverse to the longitudinal axis, said vessel having a first end and a second end, a tangential inlet near the first end, and an axial outlet at the first end, said second end being closed, said vessel being impervious except for the inlet and the outlet,
- a vacuum actuated valve biased toward a closed position positioned to seal the inlet, and
- a filter positioned in covering relationship with the outlet, and
- a tube having a longitudinal axis extending from the first end of vessel coaxially with the longitudinal axis of the vessel, said tube having an annular cross section and having a first end peripherally attached to an inside surface of the vessel surrounding the outlet and an open second end positioned at a longitudinal location between the inlet and the closed second end of the vessel, the filter being mounted in the tube near the first end of the tube.
Apparatus comprising
- a vessel having a longitudinal axis and an annular cross section transverse to the longitudinal axis, said vessel having a first end and a second end, a tangential inlet near the first end, and an axial outlet at the first end, said second end being closed, said vessel being impervious except for the inlet and the outlet,
- a vacuum actuated valve biased toward a closed position positioned to seal the inlet, and
- a filter positioned in covering relationship with the outlet,
- wherein the vessel is unopenable without being damaged, and
- wherein the vessel has a plurality of collapse-resisting ribs formed on its outer surface.
Dependencies are inferred from the claim text.