Patent US4827562A successfully refreshed from Google Patents.
US4827562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid extraction surface cleaning apparatus
Assignee: Bissell Homecare Inc
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Filing: 1988-04-11
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Granted: 1989-05-09
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Expires: 2008-04-11
Abstract
Abstract A liquid extraction surface cleaning apparatus has an upwardly opening recovery tank and a top for the tank which contains a suction fan having a suction inlet opening into the tank. A wand connects to a source of cleaning liquid and has a dispensing and pickup head that deposits liquid on the surface to be cleaned in response to actuation of a control valve and picks up dirty fluid. A water and air separator has an arcuate surface transverse of the flow path of the air and spent liquid which gently separates them into separate streams by diverting the cleaning liquid laterally away from the air stream. A shutoff valve for preventing recovered liquid in the tank from entering the suction fan is mounted in the recovery tank rather than to the suction inlet to avoid dripping dirty liquid onto the floor when the cover is removed. A handle is mounted internal the tank and additionally serves to strengthen the tank sidewalls.
Inventors
- 👤 Michael R. Blase
- 👤 Gordon W. Goodrich
- 👤 Henry J. Rosendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:47
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4013; A47L11/4016; A47L11/4022; A47L11/34; A47L7/00; A47L7/0004; A47L7/0009; A47L7/0023; A47L7/0028; A47L7/0038; A47L7/0042
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
82 words
A liquid extraction apparatus comprising: a tank having wall means defining an opening and opposing wall portions; liquid conveying means for conveying liquid to said tank, said conveying means removably covering said opening; and first handle means in said tank and mounting means for attaching said handle to said wall portions, for facilitating a user lifting said tank when said conveying means is removed from said opening; said handle means including brace means for cross bracing said wall portions and gripping means.
Claim 2
Dependent Claim
82 words
A liquid extraction apparatus comprising: a tank having wall means defining an opening and opposing wall portions; liquid conveying means for conveying liquid to said tank, said conveying means removably covering said opening; and first handle means in said tank and mounting means for attaching said handle to said wall portions, for facilitating a user lifting said tank when said conveying means is removed from said opening; said handle means including brace means for cross bracing said wall portions and gripping means.
Claim 3
Dependent Claim
34 words
The apparatus in claim 1 wherein said brace means comprises an elongated brace member and said gripping means comprises a grip member spaced from said brace member and connected thereto by elongated extension members.
Claim 4
Dependent Claim
13 words
The apparatus in claim 2 wherein said mounting means rotatably mount said handle.
Claim 5
Dependent Claim
27 words
The apparatus in claim 3 wherein said handle means is rotatable about said mounting means between a generally horizontal stored position and a generally vertical use position.
Claim 6
Dependent Claim
25 words
The apparatus in claim 4 wherein said grip member extends through said opening outside of said tank when said handle is in said use position.
Claim 7
Dependent Claim
36 words
The apparatus in claim 5 having a second handle means associated with said tank wall for facilitating a user tilting said tank with one hand when lifted by said first handle means with the other hand.
Claim 8
Dependent Claim
133 words
A liquid extraction apparatus comprising: a tank having wall means defining an opening and opposing wall portions; liquid conveying means for conveying liquid to said tank, said conveying means removably covering said opening; and first handle means in said tank and mounting means for attaching said handle to said opposing wall portions, for facilitating a user lifting said tank when said conveying means is removed from said opening, wherein said handle means is rotatable about said mounting means between a generally horizontal stored position and a generally vertical use position and includes a grip member spaced from said mounting means, said grip member extending through said opening outside of said tank when said handle is in said use position and is positioned within said tank when said handle is in said stored position.
Claim 9
Dependent Claim
133 words
A liquid extraction apparatus comprising: a tank having wall means defining an opening and opposing wall portions; liquid conveying means for conveying liquid to said tank, said conveying means removably covering said opening; and first handle means in said tank and mounting means for attaching said handle to said opposing wall portions, for facilitating a user lifting said tank when said conveying means is removed from said opening, wherein said handle means is rotatable about said mounting means between a generally horizontal stored position and a generally vertical use position and includes a grip member spaced from said mounting means, said grip member extending through said opening outside of said tank when said handle is in said use position and is positioned within said tank when said handle is in said stored position.
Claim 10
Dependent Claim
36 words
The apparatus in claim 7 having a second handle means associated with said tank wall for facilitating a user tilting said tank with one hand when lifted by said first handle means with the other hand.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |