US3887169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitator and tank apparatus
Assignee: Individual
•
Filing: 1973-07-09
•
Granted: 1975-06-03
•
Expires: 1993-07-09
Abstract
Abstract This invention relates to a tank and agitator apparatus comprising a vertical tank having an annular side wall, and an agitator mounted in the side wall of the tank. The agitator includes a shaft rotatably mounted in the side wall of the tank, and an impeller mounted on the end of the shaft within the tank. A deflection means is located between the impeller and the mounting means for directing impelled liquid outwardly around the annular wall of the tank. Also included are means for rotating the shaft and impeller means in a direction to draw the liquid from the location of the tank opposite the mounting means and move it in a direction toward the deflection means whereupon it is directed in opposite directions around the annular wall of the tank to meet at the location of the tank opposite the mounting means.
Inventors
- 👤 Frank L Maynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:54
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/60; B01F27/71; B01F33/00; B01F33/86; B01F35/00; B01F35/40; B01F35/41; B01F35/411; B01F35/4113
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
144 words
An agitator and tank apparatus comprising a tank having an annular vertical wall for containing a liquid to be mixed, an agitator having a rotating shaft and an impeller means mounted thereto, means for mounting the agitator in the vertical wall of the tank for rotation of the shaft and impeller means with the impeller means located within the tank and the axis of rotation of the impeller means being generally horizontal, means for rotating the shaft and impeller means in a direction to draw the liquid from the location of the tank opposite the mounting means and move it in a direction toward the mounting means, and deflection means between the impeller and mounting means for directing the impelled liquid outwardly in opposite directions around the annular wall of the tank to meet at the location of the tank opposite the mounting means.
Claim 2
Dependent Claim
144 words
An agitator and tank apparatus comprising a tank having an annular vertical wall for containing a liquid to be mixed, an agitator having a rotating shaft and an impeller means mounted thereto, means for mounting the agitator in the vertical wall of the tank for rotation of the shaft and impeller means with the impeller means located within the tank and the axis of rotation of the impeller means being generally horizontal, means for rotating the shaft and impeller means in a direction to draw the liquid from the location of the tank opposite the mounting means and move it in a direction toward the mounting means, and deflection means between the impeller and mounting means for directing the impelled liquid outwardly in opposite directions around the annular wall of the tank to meet at the location of the tank opposite the mounting means.
Claim 3
Dependent Claim
144 words
An agitator and tank apparatus comprising a tank having an annular vertical wall for containing a liquid to be mixed, an agitator having a rotating shaft and an impeller means mounted thereto, means for mounting the agitator in the vertical wall of the tank for rotation of the shaft and impeller means with the impeller means located within the tank and the axis of rotation of the impeller means being generally horizontal, means for rotating the shaft and impeller means in a direction to draw the liquid from the location of the tank opposite the mounting means and move it in a direction toward the mounting means, and deflection means between the impeller and mounting means for directing the impelled liquid outwardly in opposite directions around the annular wall of the tank to meet at the location of the tank opposite the mounting means.
Claim 4
Dependent Claim
144 words
An agitator and tank apparatus comprising a tank having an annular vertical wall for containing a liquid to be mixed, an agitator having a rotating shaft and an impeller means mounted thereto, means for mounting the agitator in the vertical wall of the tank for rotation of the shaft and impeller means with the impeller means located within the tank and the axis of rotation of the impeller means being generally horizontal, means for rotating the shaft and impeller means in a direction to draw the liquid from the location of the tank opposite the mounting means and move it in a direction toward the mounting means, and deflection means between the impeller and mounting means for directing the impelled liquid outwardly in opposite directions around the annular wall of the tank to meet at the location of the tank opposite the mounting means.
Claim 5
Dependent Claim
81 words
The agitator and tank apparatus of claim 1 wherein the mounting and deflector means further comprise a housing mounted in the vertical wall of the tank, which housing extends into the tank, the housing being wider at the location of the wall than that portion of the housing nearest the impeller and having an opening therein, means for mounting the agitator with its shaft extending through the housing opening, the surface of the housing within the tank defining the deflector means.
Claim 6
Dependent Claim
22 words
The agitator and tank apparatus of claim 2 wherein the surface of the housing within the tank is a curved convex surface.
Claim 7
Dependent Claim
33 words
The tank and agitator apparatus of claim 2 wherein the housing defines a recess in the tank wall within which a portion of the mounting means extends at the exterior of the tank.
Claim 8
Dependent Claim
51 words
The tank and agitator apparatus of claim 1 wherein the impeller further comprises a hub mounted to the shaft, and a plurality of blades, each blade having a portion near its leading edge as determined by the direction of rotation of the shaft which is folded back toward the deflection means.
Claim 9
Dependent Claim
30 words
The tank and agitator apparatus of claim 5 wherein each blade is pitched at an angle relative to the rotating axis of the shaft of no less than approximately 45*.
References Cited (Backward Citations)
US1446245A
Cited
US1253536A
Cited
US1268602A
Cited
US1268601A
Cited
US1490617A
Cited
US2250314A
Cited
US2096597A
Cited
US2195511A
Cited
US2498734A
Cited
US2700288A
Cited
US2690330A
Cited
US2775974A
Cited
US2960991A
Cited
US3048277A
Cited
US3112634A
Cited
US3164656A
Cited
US3503591A
Cited
US3606272A
Cited
US3606273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |