Wet and dry vacuum cleaner

• US 4,831,685 A
• Filed: 11/27/1987
• Issued: 05/23/1989
• Est. Priority Date: 11/27/1987
• Status: Expired due to Term

• Current Assignee: Maytag Corporation (Whirlpool Corporation)
• Original Assignee: Hoover Company (Whirlpool Corporation)
• Inventors: Weber, Vincent L., Wagner, Gregory P., Leonatti, John A., Bosyj, Nick M.
• Primary Examiner(s): MOORE, CHRISTOPHER K
• Application Number:
  US07/126,021
• Time in Patent Office: 543 Days
• Field of Search: 15/344, 15/353, 15/347, 15/350, 55/332, 55/334, 55/372, 55/373, 55/464, 55/DIG. 2, 55/DIG. 3
• US Class Current: 15/344
• CPC Class Codes: A47L 5/24 Hand-supported suction cleaners
• CPC Class Codes: A47L 7/0038 with means for emptying the tanks
• CPC Class Codes: A47L 7/0042 Gaskets; Sealing means
• CPC Class Codes: A47L 9/102 Dust separators cyclones A47L9/16
• CPC Class Codes: A47L 9/125 funnel-shaped
• CPC Class Codes: Y10S 55/02 Vacuum cleaner bags
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

A filter, separator and seal arrangement is disclosed for a wet and dry hand held vacuum cleaner. A cup-shaped filter is provided which is elongated to provide a large area for enhancing sustained air performance of the cleaner with the filter being disposed within a liquid separator so as to be generally coextensive therewith. A connection arrangement is also provided between the filter and separator so as to provide an air tight and liquid tight connection therebetween but which is also easily separable to facilitate cleaning of the two devices.

Claims

1. A hand held vacuum cleaner comprising:

a housing including a fan inlet;

a collection container separably attached to said housing and including tubular means therein having an inlet and an outlet for conveying liquid and dirt laden air from a surface being cleaned to the interior of said collection container;

a motor/fan unit located in said housing and in air flow communication with said collection container via the fan inlet, said motor/fan unit producing a flow of dirt and liquid laden air into said collection container via said tubular means;

a liquid separator located within said collection container and elongated in a direction from said tubular means to said housing and interposed therebetween to inhibit liquid flow to said housing and thus provide for liquid storage within the interior of said collection container, said liquid separator having inlet and outlet apertures for providing air communication between the fan inlet and said tubular means; and

a baffle within said collection container elongated transversely of said separator and having a generally semicylindrically shaped concave surface positioned opposite the outlet of said tubular means for redirecting liquid and dirt laden air emanating from the outlet of said tubular means.

2. The hand held vacuum cleaner of claim 1 wherein said baffle is carried by said liquid separator.

3. The hand held vacuum cleaner of claim 1 wherein said liquid separator includes a front wall having said generally semi-cylindrical shaped concave surface of said baffle formed integrally therewithin.

4. The hand held vacuum cleaner of claim 3 wherein the inlet aperture of said liquid separator is established at least in part by said front wall.

5. The hand held vacuum cleaner of claim 1 wherein said liquid separator includes an annular seal member disposed about a peripheral surface of said liquid separator for inhibiting liquid flow from said collection container to said housing.

6. The hand held vacuum cleaner of claim 5 wherein said liquid separator is separable from said collection container thereby facilitating emptying of liquid and other collected materials from said collection container.

7. The hand held vacuum cleaner of claim 1 further including a filter located within said collection container.

8. The hand held vacuum cleaner of claim 7 wherein said filter comprises a bag filter disposed within and generally coextensive with said liquid separator and wherein said baffle redirects liquid emanating from the outlet of said tubular means away from said bag filter.

9. A vacuum cleaner for pick-up of both liquid and dry material comprising:

a housing including a fan inlet;

a collection container separably attached to said housing and including a nozzle opening;

a motor/fan unit located in said housing and in air flow communication with said collection container via the fan inlet, said motor/fan unit producing a flow of dirt and liquid laden air into said collection container via the nozzle opening;

a liquid separator removably disposed within said collection container and having inlet and outlet apertures for providing air flow communication between the nozzle opening and the fan inlet, said liquid separator elongated in a direction from the nozzle opening toward said housing and interposed therebetween to provide for liquid storage with said collection container;

an elongated bag filter disposed within and generally coextensive with said liquid separator; and

connection means removably disposed with said collection container for providing a separable sealed connection between said bag filter and said liquid separator.

10. The vacuum cleaner of claim 9 wherein said liquid separator includes a rim and wherein said connection means includes a groove for removably receiving said rim therein.

11. The vacuum cleaner of claim 9 wherein said liquid separator includes a sloped wall and said bag filter includes a tapered surface adjacent to said sloped wall so as to provide space for air flow therebetween.

12. The vacuum cleaner of claim 9 wherein said connection means includes a seal member having resilient annular outer lip for establishing a seal with said collection container and another resilient annular lip disposed radially inwardly of the resilient outer lip for establishing a seal with said housing.

13. The vacuum cleaner of claim 12 wherein said seal member includes a frame for interiorly supporting said bag filter.

14. The vacuum cleaner of claim 12 wherein said seal member is formed of resilient material and includes a groove therein for removably receiving said liquid separator.

15. The vacuum cleaner of claim 9 wherein said bag filter includes an open end, a closed end having an arcuate configuration and a central bottom concave portion sloped from the open end to the closed end.

16. The vacuum cleaner of claim 9 further including a semi-cylindrically shaped concave baffle and wherein said collection container includes tubular means having an inlet and an outlet for conveying dirt and liquid laden air into said collection container, said semi-cylindrically shaped concave baffle interposed between said tubular means and the fan inlet for redirecting dirt and liquid laden air emanating from the outlet of said tubular means.

17. The vacuum cleaner of claim 16 wherein said semi-cylindrically shaped concave baffle is carried by said liquid separator.