US3797513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dosing syphon
Assignee: Iowa State University Research Foundation Inc
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Filing: 1972-09-11
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Granted: 1974-03-19
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Expires: 1992-09-11
Abstract
Abstract A dosing syphon for hydraulic transport of livestock and poultry wastes is disclosed. The dosing syphon comprises a fluid reservoir having a bell compartment means therein which is spaced from the bottom portion of the fluid reservoir. The bell compartment has a closed upper portion and a lower portion in communication with the interior of the housing for receiving fluid from the interior thereof. A substantiallly vertical conduit having an open upper end is positioned within the bell compartment and extends downwardly and outwardly through the housing. The vertical conduit includes a trap element for capturing a quantity of fluid therein. The vertical conduit has a fluid charging opening formed therein at the upper end therein above the bottom portion of the bell compartment so that a supply of fluid will be available to the trap while the fluid level rises within the bell compartment but before the fluid flows into the upper end of the compartment so that a constant supply of fluid will be available in the trap element.
Inventors
- 👤 T Hazen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:02
CPC Classifications
F; F04; F04F; F04F10/00; F04F10/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2774; Y10T137/4456; Y10T137/4463; Y10T137/4516
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
201 words
A dosing syphon, comprising, a fluid reservoir comprised of a housing having bottom and top portions, a bell compartment means in said housing and spaced from said bottom portion, said bell compartment means having a closed upper portion and a lower portion in communication with the interior of said housing for receiving fluid from the interior of said housing, a substantially vertical conduit extending from an upper open end within said bell compartment means downwardly and outwardly through said housing, a trap element in said conduit to capture a quantity of fluid therein at times, and a fluid charging opening formed in said conduit adjacent the open upper end thereof, said fluid charging opening being positioned below the upper open end of said conduit and above the bottom portion of said bell compartment, said fluid charging opening providing direct communication between the interior of said bell compartment means and the interior of said conduit so that a supply of fluid will be available to said trap element while the fluid level rises within said bell compartment means but before fluid flows into the upper end of said compartment, wherein a constant supply of fluid will be available in said trap element.
Claim 2
Dependent Claim
201 words
A dosing syphon, comprising, a fluid reservoir comprised of a housing having bottom and top portions, a bell compartment means in said housing and spaced from said bottom portion, said bell compartment means having a closed upper portion and a lower portion in communication with the interior of said housing for receiving fluid from the interior of said housing, a substantially vertical conduit extending from an upper open end within said bell compartment means downwardly and outwardly through said housing, a trap element in said conduit to capture a quantity of fluid therein at times, and a fluid charging opening formed in said conduit adjacent the open upper end thereof, said fluid charging opening being positioned below the upper open end of said conduit and above the bottom portion of said bell compartment, said fluid charging opening providing direct communication between the interior of said bell compartment means and the interior of said conduit so that a supply of fluid will be available to said trap element while the fluid level rises within said bell compartment means but before fluid flows into the upper end of said compartment, wherein a constant supply of fluid will be available in said trap element.
Claim 3
Dependent Claim
32 words
The dosing syphon of claim 1 wherein said bell compartment comprises an inverted housing member which is selectively vertically adjustably mounted in said housing with respect to the bottom of said housing.
Claim 4
Dependent Claim
43 words
The dosing syphon of claim 1 wherein said conduit comprises a verticalLy disposed inlet portion extending upwardly through said bottom of said housing the open upper end of said inlet portion being spaced below the said closed upper end of said bell compartment.
Claim 5
Dependent Claim
22 words
The dosing syphon of claim 1 wherein said fluid charging opening is formed in said conduit closely adjacent the upper end thereof.
Claim 6
Dependent Claim
33 words
The dosing syphon of claim 1 wherein the lower portion of the bell compartment is spaced as close to the bottom of the reservoir as possible without restricting flow into the bell compartment.
Claim 7
Dependent Claim
31 words
The dosing syphon of claim 1 wherein the volume of the bell compartment is at least five times the volume of the vertical conduit and the trap element in said conduit.
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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |