US3946458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for collecting surface liquids
Assignee: Individual
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Filing: 1974-01-17
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Granted: 1976-03-30
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Expires: 1994-01-17
Abstract
Abstract Apparatus for drawing liquid by suction from a surface and into a reservoir including intake and exhaust conduits communicating with the reservoir. The intake conduit has an inner end which is shaped to provide a continuous change in the path of flow of the liquid flowing therethrough to thereby avoid impact of the liquid with adjacent structure and thereby minimize aeration of the liquid. The apparatus can be in the form of an attachment for a conventional vacuum cleaner or can be self-contained. It is constructed to provide assurance that the suction force produced is such as to prevent liquid from passing out of the reservoir through the exhaust conduit.
Inventors
- 👤 Marven Creamer
- 👤 Adelene B. Creamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:11
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/0004; A47L7/0023; A47L7/0028; A47L7/0038; A47L7/0042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
Apparatus for use in removing a liquid from a surface comprising: an assembly including a reservoir, an intake conduit, and means defining an exhaust conduit, said intake conduit having an open inlet and exteriorly of the reservoir and an open outlet end in fluid communication with said reservoir, the inlet end being disposed to permit liquid to enter the same by suction and to flow through said intake conduit when a flow of fluid is established therein, whereby liquid flowing through said intake conduit will exit therefrom through said outlet end and will enter the reservoir, said exhaust conduit being disposed to exhaust said fluid from the reservoir and adapted to be coupled to a vacuum source; means on said assembly for adjustably venting said reservoir to the atmosphere to thereby permit variations in the suction force at said inlet end; and a valve carried by said assembly for blocking said exhaust conduit against fluid flow therethrough when the fluid mass flow rate therethrough is above a predtermined volume.
Claim 2
Dependent Claim
169 words
Apparatus for use in removing a liquid from a surface comprising: an assembly including a reservoir, an intake conduit, and means defining an exhaust conduit, said intake conduit having an open inlet and exteriorly of the reservoir and an open outlet end in fluid communication with said reservoir, the inlet end being disposed to permit liquid to enter the same by suction and to flow through said intake conduit when a flow of fluid is established therein, whereby liquid flowing through said intake conduit will exit therefrom through said outlet end and will enter the reservoir, said exhaust conduit being disposed to exhaust said fluid from the reservoir and adapted to be coupled to a vacuum source; means on said assembly for adjustably venting said reservoir to the atmosphere to thereby permit variations in the suction force at said inlet end; and a valve carried by said assembly for blocking said exhaust conduit against fluid flow therethrough when the fluid mass flow rate therethrough is above a predtermined volume.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |