Portable wet/dry vacuum cleaner and recharging base

• US 4,899,418 A
• Filed: 11/09/1988
• Issued: 02/13/1990
• Est. Priority Date: 07/24/1987
• Status: Expired due to Fees

• Current Assignee: Emerson Electric Company
• Original Assignee: Emerson Electric Company
• Inventors: Soultanian, Daniel S., Steiner, Robert E.
• Primary Examiner(s): Hornsby, Harvey C.
• Assistant Examiner(s): O'Leary, K.
• Application Number:
  US07/274,724
• Time in Patent Office: 461 Days
• Field of Search: 15/339, 15/344, 15/353, 15/401, 15/DIG. 1, 15/323, 15/350
• US Class Current: 15/344
• CPC Class Codes: A47L 5/24 Hand-supported suction cleaners
• CPC Class Codes: A47L 7/0009 with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
• CPC Class Codes: A47L 7/0038 with means for emptying the tanks
• CPC Class Codes: A47L 7/0042 Gaskets; Sealing means
• CPC Class Codes: Y10S 15/01 Rechargeable batter

Abstract

A portable wet/dry vacuum cleaner is disclosed having a handle base and a combination nozzle/debris container. The handle base comprises a housing having a motor, a blower driven by the motor, and a battery pack for energization of the motor located therein. The blower is in communication with the container for forceably drawing air and entrained debris in the air into the container, for depositing the debris in the container, and for exhausting air from the handle base. A channel is provided within the outer end of the container, which channel extends inwardly and upwardly, but terminates short of the housing. The latter has an air duct between the nozzle/debris container and the blower having an inlet spaced from the inner end of the channel. A deflector is disposed between the inner end of the channel and the inlet of the air duct for directing debris entrained into the air exhausted from the channel away from the air duct inlet.

The vacuum cleaner (or appliance) further includes a charging base for holding or mounting the vacuum cleaner. The charging base has a recess formed therein to receive at least a portion of the handle base. The handle base has a receptacle formed therein and a finger from the recharging base fits into the receptacle such that when the vacuum cleaner is rotated on the finger toward the recharging base, electrical charging terminals both on the vacuum cleaner and on the recharging base cammingly engage one another thereby to resiliently hold the vacuum cleaner in place on the base and to permit recharging of the batteries within the vacuum cleaner.

Claims

1. A portable hand held vacuum cleaner comprising a handle base and a nozzle/debris container secured at an inner end to said handle base and having an outer end, top and bottom, said bottom being substantially horizontally directed throughout its length when resting on a substantially horizontally directed supporting surface, said top extending upwardly and rearwardly from said bottom to said handle base, said handle base comprising a housing having a handle permitting a user to lift and control said vacuum cleaner, said housing having a motor, a blower driven by said motor, said blower being in communication which said container for forcibly drawing air and debris entrained in the air into said container for depositing said debris within said container and for exhausting air therefrom, a channel extending from the outer end of and along the top of and within said container and having inner and outer channel ends, the outer end of said channel being proximate the container bottom and constituting an air/debris inlet of said channel adjacent the container bottom of said nozzle/debris container, said channel being in communication with said container and being constructed to extend upwardly and rearwardly from the air/debris inlet adjacent said container bottom toward said housing along the container top, but terminating short of said housing, an air duct within said container in communication with said blower, said air duct having an inlet within said container spaced from the inner end of said channel and being above the bottom of said container, an air conveyed liquid/debris deflector between the inner end of said channel and said air duct inlet for directing air conveyed liquid and debris exhausted into said container via said channel and away from said air duct inlet, and a flexible squeegee removably insertable into the air/debris inlet and extending a predetermined distance into said channel so as to provide an air/liquid passageway of smaller cross section than said channel proximate said squeegee in said air/debris inlet and channel to substantially increase the air velocity in the air liquid passageway of smaller cross section and air convey liquid into the container via said channel while said air conveyed liquid/debris deflector being operative to effectively and efficiently direct air conveyed liquid and debris through said channel into said container and away from said air duct inlet, to facilitate the pick-up of liquid from a surface to be cleaned adjacent the container bottom.

2. A portable hand held vacuum cleaner as defined in claim 1 wherein said squeegee includes at least one wiper extending beyond said container for pushing a liquid on a surface to be cleaned toward said air/liquid passageway.

3. A portable hand held vacuum cleaner as defined in claim 2 wherein said squeegee has a unitary body structured so as to be snugly received within the air/debris inlet of said channel, said squeegee having a spacer for spacing at least part of said squeegee body from a respective wall of said channel thus defining said air/liquid passageway of substantially smaller cross section than said channel between said squeegee body and said channel.

4. A portable hand held vacuum cleaner as defined in claim 1 wherein said channel and said container top have a gently curving configuration while extending upwardly and rearwardly from said container bottom.

5. A portable hand held vacuum cleaner as defined in claim 4 wherein said channel has a removable cover for emptying debris from within said container without separation of said container from said handle base.

6. A portable hand held vacuum cleaner as defined in claim 5 wherein said removable cover carries said deflector.

7. A portable hand held vacuum cleaner as set forth in claim 6 wherein said reflector curves downwardly and inwardly from said removable cover across said channel and toward said container bottom.

8. A portable hand held vacuum cleaner as set forth in claim 7 and further including a gasket between said cover and said nozzle/debris container for at least in part sealing said channel.

9. A portable hand held vacuum cleaner as set forth in claim 8 wherein said container has an opening in the top thereof between the rear portion of said channel and said handle housing permitting said container to be emptied of debris when said cover is removed.

10. A portable hand held vacuum cleaner as defined in claim 9 wherein said container has said channel and said opening therein, said removable cover overlying the top of said container, and said container further comprising a mounting frame secured to said handle housing such that said blower is in communication with said air duct.

11. A portable hand held vacuum cleaner as defined in claim 10 wherein said container mounting frame has a latch for removably securing said cover to the top of said container.