US4092013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixer with no moving parts
Assignee: Individual
•
Filing: 1975-08-06
•
Granted: 1978-05-30
•
Expires: 1995-08-06
Abstract
Abstract A mixing device for combining two or more components, at least one of which is a fluid, comprises a cylindrical housing having a tangentially arranged tubular inlet for a liquid, a second inlet for another component to be mixed with the fluid, and a centrally located axially extending tubular outlet provided with a baffle plate which, by creating turbulence in the flow, assists in the mixing process.
Inventors
- 👤 Gustaf Adolf Staaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:59
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
182 words
A mixing device comprising a housing defined by a surface of revolution having a central axis with a peripheral wall concentric with said axis, and two axially spaced generally radial gables, at least two inlet tubings connected with said housing for supplying different components to the housing to be mixed, a single outflow tubing connected to said housing at said central axis for withdrawing mixed components, at least one of said inlet tubings being joined to the housing tangentially to said peripheral wall to induce a spiral inwardly directed flow in said housing, the axial length of said housing being relatively narrow compared to its diameter to confine the spiral inwardly directed flow of the components to a radial direction, the axial cross-section of the housing becoming narrower in the direction from peripheral wall to the axis so as to increase the rate of said spiral flow as the components approach the outflow tubing, said outflow tubing being provided with a flow obstruction comprising a hindering plate in a position transverse to the circumferential component of rotational motion of the outflowing medium.
Claim 2
Dependent Claim
182 words
A mixing device comprising a housing defined by a surface of revolution having a central axis with a peripheral wall concentric with said axis, and two axially spaced generally radial gables, at least two inlet tubings connected with said housing for supplying different components to the housing to be mixed, a single outflow tubing connected to said housing at said central axis for withdrawing mixed components, at least one of said inlet tubings being joined to the housing tangentially to said peripheral wall to induce a spiral inwardly directed flow in said housing, the axial length of said housing being relatively narrow compared to its diameter to confine the spiral inwardly directed flow of the components to a radial direction, the axial cross-section of the housing becoming narrower in the direction from peripheral wall to the axis so as to increase the rate of said spiral flow as the components approach the outflow tubing, said outflow tubing being provided with a flow obstruction comprising a hindering plate in a position transverse to the circumferential component of rotational motion of the outflowing medium.
Claim 3
Dependent Claim
21 words
Mixing device according to claim 1, characterized in that said housing exhibits one plane gable and one concavely cone shaped gable.
Claim 4
Dependent Claim
17 words
Mixing device according to claim 1, characterized in that said housing exhibits two concavely cone shaped gables.
Claim 5
Dependent Claim
28 words
Mixing device according to claim 1, characterized in that at least one supply tubing is centrally connected to the housing through the gable opposite to the outflow tubing.
Claim 6
Dependent Claim
36 words
Mixing device according to claim 4, characterized in that one or more of said supply tubings are provided with a conical restriction at or near the inflow end into the housing of said tubing or tubings.
Claim 7
Dependent Claim
36 words
Mixing device according to claim 1, characterized in that one or more of said supply tubings are provided with a conical dilation at or near the inflow end into the housing of said tubing or tubings.
Claim 8
Dependent Claim
44 words
System for mixing two or more components, comprising at least two mixing devices according to claim 1, and tubing means for communication between the outflow tubing of one of said mixing devices and the interior of the housing of another of the mixing devices.
Claim 9
Dependent Claim
31 words
System according to claim 7, further comprising one or more pumps and tubing for communication between a pump and said mixing devices for transferring components from one mixing device to another
Claim 10
Dependent Claim
44 words
System for mixing two or more components, comprising at least two mixing devices according to claim 1, and tubing means for communication between the outflow tubing of one of said mixing devices and the interior of the housing of another of the mixing devices.
Claim 11
Dependent Claim
31 words
System according to claim 9, further comprising one or more pumps, and tubing for communication between a pump and said mixing devices for transferring components from one mixing device to another.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |