Patent US4800613A successfully refreshed from Google Patents.
US4800613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid extraction surface cleaning apparatus
Assignee: Bissell Homecare Inc
•
Filing: 1988-04-11
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Granted: 1989-01-31
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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
- 👤 Henry J. Rosendall
- 👤 Gordon W. Goodrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:10
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4044; A47L11/29; A47L11/30; A47L11/34; A47L11/4002; A47L11/4005; A47L11/4013; A47L11/4016; A47L11/4019; A47L11/4022; A47L11/4025; A47L11/4027; A47L11/4075; A47L11/408; A47L11/4088
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
161 words
A liquid extraction surface cleaning apparatus comprising: dispensing means for dispensing a cleaning liquid on a surface; a fluid hose having a first end configured for connection to said dispensing means and a second end configured for connection to a source of liquid remote from said surface; suction means for picking up said liquid from said surface. a power cord having a first end connected to said motor means and a second end configured for connection to a source of electrical power; a tank having first wall means defining an opening; a top member selectively covering said opening and having second wall means substantially enclosing said suction means and said motor means; said top member defining first and second concentric spool means for wound storage of said power cord and said fluid hose respectively; and facilitating means associated with said second spool means for facilitating selective access to both said ends of said fluid hose often wrapped on said second spool.
Claim 2
Dependent Claim
161 words
A liquid extraction surface cleaning apparatus comprising: dispensing means for dispensing a cleaning liquid on a surface; a fluid hose having a first end configured for connection to said dispensing means and a second end configured for connection to a source of liquid remote from said surface; suction means for picking up said liquid from said surface. a power cord having a first end connected to said motor means and a second end configured for connection to a source of electrical power; a tank having first wall means defining an opening; a top member selectively covering said opening and having second wall means substantially enclosing said suction means and said motor means; said top member defining first and second concentric spool means for wound storage of said power cord and said fluid hose respectively; and facilitating means associated with said second spool means for facilitating selective access to both said ends of said fluid hose often wrapped on said second spool.
Claim 3
Dependent Claim
51 words
The apparatus in claim 1 wherein said second spool means has a core and a pair of spaced apart end members transverse said core defining a winding area therewith and further wherein said facilitating means comprises said winding area being substantially larger than that required for storage of said fluid hose.
Claim 4
Dependent Claim
43 words
The apparatus in claim 2 further having a plurality of hose retaining means spaced circumferentially around one of said second spool means end members for holding said ends of said fluid hose when said fluid hose is partially wrapped on said second spool.
Claim 5
Dependent Claim
33 words
The apparatus in claim 3 wherein said fluid hose is resilient and each said hose retaining means comprises a pair of upstanding members spaced apart less than the diameter of said fluid hose.
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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) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |