US3640302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siphoning device
Assignee: Metaframe Corp
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Filing: 1970-03-10
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Granted: 1972-02-08
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Expires: 1990-03-10
Abstract
Abstract A siphoning device having a siphon tube connected to a cupshaped member for transferring a liquid from a first receptacle containing the liquid to a second receptacle containing a liquid. One end of the tube extends into the cup-shaped member. The other end of the tube is submerged in the liquid of the first receptacle, and the cup-shaped member is immersed in the liquid of the second receptacle. The cup-shaped member is provided with a one-way valve to permit the compressed air to escape therefrom. Removing the liquid from the second receptacle causes the air pressure acting on the liquid in the first receptacle to start the siphoning action.
Inventors
- 👤 Allan H Willinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:10
CPC Classifications
F; F04; F04F; F04F10/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2842
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
230 words
A siphoning device for transferring a liquid from a first receptacle to a second receptacle, said device comprising a Ushaped tube having first and second leg portions, said first leg portion being adapted to be disposed within the first receptacle and supported below the liquid level thereof, a chamberlike member provided with an opening to permit liquid to pass into and out of said chamberlike member, said tube being connected to said chamberlike member with said second leg portion extending into said chamberlike member, said chamberlike member being adapted to be disposed within the second receptacle and supported therein with said opening submerged in a body of liquid contained within the second receptacle so that said second leg portion is below the surface of the body of liquid, said chamberlike member being provided with one-way valve means to permit compressed air within said chamberlike member to escape therefrom and to prevent air from entering said chamberlike member through said valve means, whereby reducing the surface level of the liquid in the second receptacle also reduces the level of the liquid in both said chamberlike member and said second leg portion, thereby causing the air pressure in said chamberlike member to be reduced so that the air pressure acting on the liquid in the first receptacle forces the first receptacle liquid into said first leg portion to start the siphoning action.
Claim 2
Dependent Claim
230 words
A siphoning device for transferring a liquid from a first receptacle to a second receptacle, said device comprising a Ushaped tube having first and second leg portions, said first leg portion being adapted to be disposed within the first receptacle and supported below the liquid level thereof, a chamberlike member provided with an opening to permit liquid to pass into and out of said chamberlike member, said tube being connected to said chamberlike member with said second leg portion extending into said chamberlike member, said chamberlike member being adapted to be disposed within the second receptacle and supported therein with said opening submerged in a body of liquid contained within the second receptacle so that said second leg portion is below the surface of the body of liquid, said chamberlike member being provided with one-way valve means to permit compressed air within said chamberlike member to escape therefrom and to prevent air from entering said chamberlike member through said valve means, whereby reducing the surface level of the liquid in the second receptacle also reduces the level of the liquid in both said chamberlike member and said second leg portion, thereby causing the air pressure in said chamberlike member to be reduced so that the air pressure acting on the liquid in the first receptacle forces the first receptacle liquid into said first leg portion to start the siphoning action.
Claim 3
Dependent Claim
21 words
A siphoning device according to claim 1 wherein said chamberlike member and said U-shaped tube are formed from a plastic material.
Claim 4
Dependent Claim
23 words
A siphoning device according to claim 2 wherein said plastic material is transparent so that the operation of said siphoning device maybe viewed.
Claim 5
Dependent Claim
72 words
A siphoning device according to claim 1 wherein said valve means includes walls connected to said chamberlike member and extended therefrom to enclose an outer wall section of said chamberlike member to define a hollow valve member, said section being provided with an aperture extending therethrough into said chamberlike member, a flexible member being positioned within said hollow valve member and resting against said section to cover said aperture in said section.
Claim 6
Dependent Claim
68 words
A siphoning device according to claim 4 wherein cap means closes said valve member to retain said flexible member therein, said cap means being spaced from said section of said chamberlike member to permit movement of said flexible member away from said section to uncover said aperture in said section, said cap means being provided with an aperture to permit air within said valve member to escape therefrom.
Claim 7
Dependent Claim
70 words
A siphoning device according to claim 1 wherein said chamberlike member is cup-shaped to define a hollow-cylindrical body closed on one end by a top portion, said opening of said chamberlike member being opposite said top portion, said second leg portion extending through said top portion, said second leg portion having its opened end within said chamberlike member, said opened end being spaced from said opening of said chamberlike member.
Claim 8
Dependent Claim
21 words
A siphoning device according to claim 6 wherein said chamberlike member and said U-shaped tube are formed from a plastic material.
Claim 9
Dependent Claim
24 words
A siphoning device according to claim 7 wherein said plastic material is transparent so that the operation of said siphoning device may be viewed.
Claim 10
Dependent Claim
76 words
A siphoning device according to claim 6 wherein said valve means includes walls connected to said top portion of said chamberlike member and extended upwardly therefrom to enclose an outer section of said top portion to define a hollow valve member, said section being provided with an aperture extending therethrough into said chamberlike member, a flexible member being positioned within said hollow valve member and resting against said section to cover said aperture in said section.
Claim 11
Dependent Claim
68 words
A siphoning device according to claim 9 wherein cap means closes said valve member to retain said flexible member therein, said cap means being spaced from said section of said top portion to permit movement of said flexible member away from said section to uncover said aperture in said section, said cap means being provided with an aperture to permit air within said valve members to escape therefrom.
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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |