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US3805831A Expired / Lapsed US ⏱️ 0.0 years remaining

Proportioning-mixing apparatus

Assignee: Individual
•
Filing: 1972-11-09
•
Granted: 1974-04-23
•
Expires: 1992-11-09
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Abstract

Abstract A mixing apparatus for proportionately mixing one fluid stream with another comprising an inner tube for the passage of one fluid stream, an outer tube concentric with said inner tube and defining a passageway therewith for the second fluid stream, the inner tube terminating interiorly at a distance from the outlet end of said outer tube. An axially movable conical member is provided in the outer tube having a base which in its normal position effectively seals the outlet end of the inner tube and whose apex portion extends interiorly in the inner tube for effective distribution of the fluid stream passing through the inner tube into a mixing zone in the outer tube. The outer tube is provided with angularly disposed baffle plates interiorly near its outlet end in order to promote turbulence and to insure a more thorough mixing of the fluid streams. A manually adjustable baffle plate at the inlet end of the outer tube controls the passage area of the fluid stream flowing through the outer tube and insure proper functioning of the mixing unit.

Inventors

  • 👤 D Culbertson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 01:52
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87652; Y10T137/8766

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 254 words
A fluid mixing apparatus comprising a relatively short inner tube having an inlet end and an outlet end for the passage of a first fluid stream; a relatively longer outer tube concentric with said inner tube and defining a passageway therewith for a second fluid stream, said outer tube having an inlet end and outlet end, said inner tube terminating interiorly in said outer tube at a distance away from said outlet end of said outer tube; an axially movable conical member having a base disposed adjacently exterior of said outlet end of said inner tube and essentially sealing said outlet end of said inner tube when said conical member is at its initial normal position, said conical member having an apex portion projecting interiorly in said inner tube; a mixing zone defined by the base of said conical member and said outlet end of said outer tube; a centrally disposed longitudinally movable member extending through the apex of said conical member and having two ends, one end terminating interiorly of said inner tube and the other end terminating at the outlet end of said outer tube, said longitudinally movable member being affixed to said conical member so as to axially bias the movement of said conical member; a lever member for axially biasing said longitudinally movable member; a manually adjustable baffle disposed at the inlet end of said outer tube, and a baffle plate downstream of said mixing zone, said bafflE plate being inwardly tapered toward the longitudinal axis of said outer tube.
Claim 2
Dependent Claim 254 words
A fluid mixing apparatus comprising a relatively short inner tube having an inlet end and an outlet end for the passage of a first fluid stream; a relatively longer outer tube concentric with said inner tube and defining a passageway therewith for a second fluid stream, said outer tube having an inlet end and outlet end, said inner tube terminating interiorly in said outer tube at a distance away from said outlet end of said outer tube; an axially movable conical member having a base disposed adjacently exterior of said outlet end of said inner tube and essentially sealing said outlet end of said inner tube when said conical member is at its initial normal position, said conical member having an apex portion projecting interiorly in said inner tube; a mixing zone defined by the base of said conical member and said outlet end of said outer tube; a centrally disposed longitudinally movable member extending through the apex of said conical member and having two ends, one end terminating interiorly of said inner tube and the other end terminating at the outlet end of said outer tube, said longitudinally movable member being affixed to said conical member so as to axially bias the movement of said conical member; a lever member for axially biasing said longitudinally movable member; a manually adjustable baffle disposed at the inlet end of said outer tube, and a baffle plate downstream of said mixing zone, said bafflE plate being inwardly tapered toward the longitudinal axis of said outer tube.

References Cited (Backward Citations)

US1110516A Cited
US1334355A Cited
US1563246A Cited
US2520692A Cited
US3403852A Cited
US3721387A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-04-22 1977-10-22 1978-04-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-04-22 1981-10-22 1982-04-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-04-22 1985-10-22 1986-04-23 $7700.00 Window Closed / Lapsed

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