Patent US5377383A successfully refreshed from Google Patents.
US5377383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for a vacuum cleaner or a vacuum-cleaning pipe
Assignee: Individual
•
Filing: 1991-01-28
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Granted: 1995-01-03
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Expires: 2011-01-28
Abstract
Abstract To vacuum up a fluid using a vacuum cleaner, there is provided an attachment (1) to which a vacuum cleaner hose (31) is connected. The attachment comprises a separation chamber (3) in which the vacuumed up liquid is separated from the suction air through deposition on the wall surfaces (5, 6, 8, 11) of the separation chamber, with the liquid then dripping down into the collection chamber (21). The liquid is thus completely separated from the air using a common vacuum cleaner without the potential for vacuum cleaner damage. To insure that the suction through the attachment is cut off in the event that the liquid in the container reaches the vicinity of the suction channel, a valve element (18) and a float element (20) are provided which cut off the suction air and therewith the flow of liquid to the attachment when the maximum liquid level has been reached in the container. A finger operated valve can optionally cut off the suction through the attachment to regulate the vacuum.
Inventors
- 👤 Lars Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:31
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/0004; A47L7/0009; A47L7/0023; A47L7/0028; A47L7/0038
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
160 words
An attachment for a vacuum cleaner or a vacuum cleaning pipe, the attachment used for collecting vacuumed liquid, and comprising a closed container having a suction connection for connection to a nozzle, and having a vacuum connection for connection to the vacuum cleaner or the vacuum cleaning pipe, a separation chamber provided in the container and connected to the suction connection for separating the vacuumed liquid from suction air, a collection chamber provided in the container for collecting the separated liquid, a float control valve located between the collection chamber and the vacuum connection, the suction connection placed in a top of the container such that it opens into the separation chamber, the separation chamber forming a channel defined by vertical and horizontal walls on which the liquid is separated from the suction air, the walls located above the collection chamber, the vertical wall surfaces having drip edges at the bottom thereof, the horizontal wall surfaces having drip cones thereon.
Claim 2
Dependent Claim
160 words
An attachment for a vacuum cleaner or a vacuum cleaning pipe, the attachment used for collecting vacuumed liquid, and comprising a closed container having a suction connection for connection to a nozzle, and having a vacuum connection for connection to the vacuum cleaner or the vacuum cleaning pipe, a separation chamber provided in the container and connected to the suction connection for separating the vacuumed liquid from suction air, a collection chamber provided in the container for collecting the separated liquid, a float control valve located between the collection chamber and the vacuum connection, the suction connection placed in a top of the container such that it opens into the separation chamber, the separation chamber forming a channel defined by vertical and horizontal walls on which the liquid is separated from the suction air, the walls located above the collection chamber, the vertical wall surfaces having drip edges at the bottom thereof, the horizontal wall surfaces having drip cones thereon.
Claim 3
Dependent Claim
63 words
The attachment according to claim 1, further comprising a horizontal chamber having an underside consisting of a first plate and a top consisting of a second plate, an upwardly extending stub located in the middle between the plates, the stub opening into a discharge opening such that the exit from the separation chamber to the vacuum connection takes place through the horizontal chamber.
Claim 4
Dependent Claim
45 words
The attachment according to claim 1, wherein the float control valve is located in the separation chamber, close to the vacuum connection, the float control valve having a valve spindle which extends downwardly into the collection chamber, the valve spindle connected to a float element.
Claim 5
Dependent Claim
59 words
The attachment according to claim 1, further comprising a finger operated valve located between the float control valve and the vacuum connection, the finger operated valve including a slide member which provides access for air from outside through openings into the container when the vacuum is cut off, the finger operated valve, when closed, opens suction into the container.
Claim 6
Dependent Claim
45 words
The attachment according to claim 2, wherein the float control valve is located in the separation chamber, close to the vacuum connection, the float control valve having a valve spindle which extends downwardly into the collection chamber, the valve spindle connected to a float element.
Claim 7
Dependent Claim
59 words
The attachment according to claim 2, further comprising a finger operated valve located between the float control valve and the vacuum connection, the finger operated valve including a slide member which provides access for air from outside through openings into the container when the vacuum is cut off, the finger operated valve, when closed, opens suction into the container.
Claim 8
Dependent Claim
59 words
The attachment according to claim 3, further comprising a finger operated valve located between the float control valve and the vacuum connection, the finger operated valve including a slide member which provides access for air from outside through openings into the container when the vacuum is cut off, the finger operated valve, when closed, opens suction into the container.
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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) | 1998-01-02 | 1998-07-04 | 1999-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-02 | 2002-07-04 | 2003-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-02 | 2006-07-04 | 2007-01-03 | $7700.00 | Window Closed / Lapsed |