Patent US764454A successfully refreshed from Google Patents.
US4597672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Center discharge mixer for fluent and nonfluent material
Assignee: J-STAR INDUSTRIES Inc
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Filing: 1985-01-17
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Granted: 1986-07-01
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Expires: 2005-01-17
Abstract
Abstract A feed mixer includes a mixer tank with a bottom wall having two curved wall portions defining the bottom of a large main chamber and smaller auxiliary chamber with an elongated ridge therebetween. A rotor having several elongated rotor bars adjacent the outer periphery is supported in the main chamber for rotation in a direction for movement of the rotor bars across the bottom of the main chamber toward the auxiliary chamber. The auxiliary chamber includes a pair of stacked augers adapted for moving material from one end of the tank to the other in opposite directions. Material is thus continuously cycled from the main chamber into a lower portion of the auxiliary chamber where it is moved toward one end of the mixer, forced upwardly into an upper portion of the auxiliary chamber and then directed toward the opposite end of the tank while spilling back into the main chamber for efficient end-to-end mixing of even long stringy hay material.
Inventors
- 👤 Benjamin R. Neier
- 👤 Donald L. Stirling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:09
CPC Classifications
A; A01; A01K; A01K5/00; A01K5/001; A01K5/002; B; B01; B01F; B01F27/00; B01F27/60; B01F27/72; B01F27/726; B01F33/00; B01F33/50; B01F33/502; B01F27/05; B01F27/11; B01F27/114; B01F27/23; B01F27/232; B01F27/2322; Y; Y10; Y10S; Y10S366/00; Y10S366/603
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
224 words
A material mixer, comprising a mixer tank including forward and rearward end walls, a bottom wall and opposite side walls, said bottom wall including a first relatively large curved wall portion defining the bottom of a main chamber, a second relatively smaller curved wall portion defining the bottom of an auxiliary chamber, and an enlongated ridge at the junction of said curved wall portions, said second curved wall portion including a discharge opening at a position substantially spaced from both end walls, a movable door and means for selectively moving said door to close and open said discharge opening, a rotor rotatably supported within said main chamber for mixing materail therein and moving material across said first wall portion toward said auxiliary chamber, a lower auger having opposite end portions and reverse flighting sections on said opposite end portions for moving material in opposite axial directions in response to rotation of said lower auger, means for supporting said lower auger in said auxiliary chamber adjacent said second wall portion for rotation in a direction to move material axially toward said discharge opening, an upper auger, means for supporting said upper auger in said auxiliary chamber above said lower auger for rotation in a direction to move material axially of said upper auger, and drive means for rotating said rotor and upper and lower augers.
Claim 2
Dependent Claim
224 words
A material mixer, comprising a mixer tank including forward and rearward end walls, a bottom wall and opposite side walls, said bottom wall including a first relatively large curved wall portion defining the bottom of a main chamber, a second relatively smaller curved wall portion defining the bottom of an auxiliary chamber, and an enlongated ridge at the junction of said curved wall portions, said second curved wall portion including a discharge opening at a position substantially spaced from both end walls, a movable door and means for selectively moving said door to close and open said discharge opening, a rotor rotatably supported within said main chamber for mixing materail therein and moving material across said first wall portion toward said auxiliary chamber, a lower auger having opposite end portions and reverse flighting sections on said opposite end portions for moving material in opposite axial directions in response to rotation of said lower auger, means for supporting said lower auger in said auxiliary chamber adjacent said second wall portion for rotation in a direction to move material axially toward said discharge opening, an upper auger, means for supporting said upper auger in said auxiliary chamber above said lower auger for rotation in a direction to move material axially of said upper auger, and drive means for rotating said rotor and upper and lower augers.
Claim 3
Dependent Claim
39 words
The mixer of claim 1 wherein said upper auger has opposite end portions and reverse flighting sections on said opposite end portions operative for moving material axially away from said discharge opening in opposite directions toward said end walls.
Claim 4
Dependent Claim
29 words
The mixer of claim 2 wherein the reverse flighting sections on said upper auger have ends disposed in closely adjacent relation at positions axially registered with said discharge opening.
Claim 5
Dependent Claim
51 words
The mixer of claim 1 wherein said reverse flighting sections on said lower auger are positioned in axially spaced-apart relation and further comprising a plurality of radially extended paddles arranged in axially and circumferentially spaced-apart relation on said bottom auger between said flighting sections at positions registered with said discharge opening.
Claim 6
Dependent Claim
35 words
The mixer of claim 4 wherein said reverse flighting sections extend from positions closely adjacent said forward and rearward end walls to positions substantially registered with the forward and rearward edges of said discharge opening.
Claim 7
Dependent Claim
61 words
The mixer of claim 4 wherein at least some of said paddles are situated adjacent said reverse flighting sections and include respective surfaces which are inclined relative to a plane perpendicular to the axis of the auger for retarding the axial movement of material from the adjacent flighting section toward the discharge opening in response to rotation of said lower auger.
Claim 8
Dependent Claim
12 words
The mixer of claim 6 wherein said paddles comprise angle iron members.
Claim 9
Dependent Claim
57 words
The mixer of claim 1 wherein said upper auger has at least one flighting section with opposite ends axially spaced from said forward and rearward end walls and a plurality of radially extended paddles arranged in axially and circumferentially spaced-apart relation on said upper auger between each end of the flighting section and the adjacent end wall.
Claim 10
Dependent Claim
45 words
The mixer of claim 8 wherein the paddles on said upper auger which are situated closest to said forward and rearward end walls have inclined surfaces adapted for moving material away from the respective adjacent end wall in response to rotation of said upper auger.
Claim 11
Dependent Claim
24 words
The mixer of claim 1 wherein said discharge opening is axially offset from the longitudinal center of said tank toward the forward end thereof.
Claim 12
Independent Claim
198 words
A method of mixing material, comprising providing an elongated mixer tank having longitudinally spaced-apart forward and rearward end walls, opposite side walls and a bottom wall including a first relatively large curved wall portion defining the bottom of a main chamber, a second relatively smaller curved wall portion defining the bottom of an auxiliary chamber and having a discharge opening therein substantially spaced from said forward and rearward end walls and an elongated ridge at the juncture of said curved wall portions, loading material into said mixer tank, moving at least one elongated rotor bar in a rotary path adjacent and across said first wall portion and substantially spanning said main chamber, thereby mixing material in said main chamber and moving at least a portion of said material over said ridge to said auxiliary chamber, mixing material in a lower portion of said auxiliary chamber adjacent said second wall portion while simultaneously converging material from opposite directions toward said discharge opening longitudinally across said lower portion of said auxiliary chamber, and mixing material in an upper portion of said auxiliary chamber while simultaneously advancing material longitudinally across said upper portion and spilling material back into said main chamber.
Claim 13
Independent Claim
198 words
A method of mixing material, comprising providing an elongated mixer tank having longitudinally spaced-apart forward and rearward end walls, opposite side walls and a bottom wall including a first relatively large curved wall portion defining the bottom of a main chamber, a second relatively smaller curved wall portion defining the bottom of an auxiliary chamber and having a discharge opening therein substantially spaced from said forward and rearward end walls and an elongated ridge at the juncture of said curved wall portions, loading material into said mixer tank, moving at least one elongated rotor bar in a rotary path adjacent and across said first wall portion and substantially spanning said main chamber, thereby mixing material in said main chamber and moving at least a portion of said material over said ridge to said auxiliary chamber, mixing material in a lower portion of said auxiliary chamber adjacent said second wall portion while simultaneously converging material from opposite directions toward said discharge opening longitudinally across said lower portion of said auxiliary chamber, and mixing material in an upper portion of said auxiliary chamber while simultaneously advancing material longitudinally across said upper portion and spilling material back into said main chamber.
Claim 14
Dependent Claim
36 words
The method of claim 11 wherein the step of advancing material longitudinally across said upper portion comprises advancing material in opposite longitudinal directions away from said discharge opening and toward said forward and rearward end walls.
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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) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |