US4246676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid collecting vacuum container
Assignee: Individual
•
Filing: 1979-08-15
•
Granted: 1981-01-27
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Expires: 1999-08-15
Abstract
Abstract An air and liquid tight liquid collecting container includes a cover which may be sealed to the top of the container. The cover includes an inlet port adapted to be connected to a hose which in turn carries a nozzle at the end thereof for picking up liquids. The cover also includes a vacuum port which is adapted to be connected to a standard vacuum cleaner. Associated with the vacuum port is a liquid level sensing device which opens the vacuum port to the atmosphere when the liquid rises to a predetermined level thereby preventing the liquid from entering the vacuum line. A pump, suspended from the cover into the container, pumps the liquid collected in the container to some external desired location.
Inventors
- 👤 Alexander Hallsworth
- 👤 Gary Hallsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:21
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/0004; A47L7/0023; A47L7/0028; A47L7/0038; A47L7/0042
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
211 words
A liquid collecting vacuum container comprising: a liquid and airtight container; a cover for said container and means for sealing said cover to said container; an inlet port mounted on said cover and being adapted to be connected to a hose means; a vacuum port means mounted on said cover, said vacuum port means including a substantially cylindrically shaped portion extending upwardly from the top of said cover and at least one aperture passing through a side wall of said cylindrically shaped portion at a portion above the top of said cover, said vacuum port means being adapted to be connected to a vacuum source at a point above said aperture, and a liquid level sensing means mounted on said cover beneath said vacuum port means, said liquid level sensing means including a ball float within said container, an elongated rod extending substantially vertically upwardly therefrom into said cylindrically shaped portion and a closure member carried by the upper end of said rod; said float, rod and closure member being movable in unison such that said aperture is closed by said closure member when liquid in said container is below a predetermined level and said closure member rises to open said aperture when the liquid level rises above said predetermined level.
Claim 2
Dependent Claim
211 words
A liquid collecting vacuum container comprising: a liquid and airtight container; a cover for said container and means for sealing said cover to said container; an inlet port mounted on said cover and being adapted to be connected to a hose means; a vacuum port means mounted on said cover, said vacuum port means including a substantially cylindrically shaped portion extending upwardly from the top of said cover and at least one aperture passing through a side wall of said cylindrically shaped portion at a portion above the top of said cover, said vacuum port means being adapted to be connected to a vacuum source at a point above said aperture, and a liquid level sensing means mounted on said cover beneath said vacuum port means, said liquid level sensing means including a ball float within said container, an elongated rod extending substantially vertically upwardly therefrom into said cylindrically shaped portion and a closure member carried by the upper end of said rod; said float, rod and closure member being movable in unison such that said aperture is closed by said closure member when liquid in said container is below a predetermined level and said closure member rises to open said aperture when the liquid level rises above said predetermined level.
Claim 3
Dependent Claim
27 words
The device as claimed in claim 1 further including a pump means carried by said cover, said pump means being adapted to pump liquid from said container.
Claim 4
Dependent Claim
17 words
The device as claimed in claim 2 wherein said pump means is removably connected to said cover.
Claim 5
Dependent Claim
43 words
The device as claimed in claim 3 wherein said pump means is mounted on a plate and wherein said cover includes an opening therein having a configuration complementary to the shape of said plate and being adapted to be closed by said plate.
Claim 6
Dependent Claim
23 words
The device as claimed in claim 4 including an additional plate adapted to close said opening in lieu of said first mentioned plate.
Claim 7
Dependent Claim
66 words
The device as claimed in claim 1 further including a valve seat within said liquid level sensing means at a position adjacent the bottom of said cover, said ball float being adapted to seat itself into said valve seat to thereby close communication between the interior of said container and said vacuum source whenever liquid within said container rises to a second and higher predetermined level.
References Cited (Backward Citations)
US1982345A
Cited
US2889846A
Cited
US3029463A
Cited
GB937312A
Cited
US3896520A
Cited
US4080104A
Cited
US4041569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |