US3780993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agitating extensions for the central mixing auger of a grinder-mixer
Assignee: Unisys Corp
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Filing: 1972-05-31
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Granted: 1973-12-25
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Expires: 1992-05-31
Abstract
Abstract The present invention relates to the provision of a plurality of agitating extensions to the lower auger flighting of the central mixing auger of a grinder-mixer of the type having a tank supported on a mobile frame. The agitating extensions are fixed directly to the lower flighting and project outwardly therefrom with the outer ends thereof terminate in close proximity to the side walls of the tank, thereby tending to engage and agitate material being contained within the lower portion of the mixing tank.
Inventors
- 👤 C Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:12
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/50; B01F33/502; B01F33/5023; B01F33/80; B01F33/836; B01F33/8361; B01F33/83611; B01F2101/00; B01F2101/06; B01F2101/18; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/15; B01F27/19; B01F27/192; B01F27/80; B01F35/00; B01F35/75; Y; Y10; Y10S; Y10S366/00; Y10S366/603
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
In a mixer of the type including a frame, a mixing tank supported by said frame, and means for feeding material to and from said mixing tank, the improvement comprising: a generally centrally disposed mixing auger rotatively mounted about a generally vertical axis within said mixing tank and comprising, an auger tube; flighting wound around said auger tube from a bottom portion to a top portion thereof, said flighting being adapted to convey material upwardly from the bottom portion of said mixing tanks; and at least one extension element fixed to and spaced about the lower portion of said auger flighting and projecting outwardly and upwardly therefrom to engage and lift the surrounding materials.
Claim 2
Dependent Claim
114 words
In a mixer of the type including a frame, a mixing tank supported by said frame, and means for feeding material to and from said mixing tank, the improvement comprising: a generally centrally disposed mixing auger rotatively mounted about a generally vertical axis within said mixing tank and comprising, an auger tube; flighting wound around said auger tube from a bottom portion to a top portion thereof, said flighting being adapted to convey material upwardly from the bottom portion of said mixing tanks; and at least one extension element fixed to and spaced about the lower portion of said auger flighting and projecting outwardly and upwardly therefrom to engage and lift the surrounding materials.
Claim 3
Dependent Claim
25 words
A mixer, as recited in claim 1, wherein said extension element comprises a main body portion which extends outwardly and upwardly from said auger flighting.
Claim 4
Dependent Claim
20 words
A mixer, as recited in claim 2, wherein said main body portion extends at an incline from said auger flights.
Claim 5
Dependent Claim
148 words
In a portable grinder-mixer of the type having a wheel supported frame, a mixing tank disposed on said frame and having a lower conical shape portion with walls extending generally downwardly and inwardly, means for feeding material to and from said mixing tank, the improvement comprising an upright generally centrally disposed auger rotatively mounted within said mixing tank and comprising, an upright auger tube rotatively mounted within said mixing tanks; auger flighting wound around upper and lower portions of said auger tube and particularly adapted to convey material upwardly within said mixing tank, said lower auger flighting having an outside diameter spaced inwardly from the walls of the lower portion of said tank; and one or more extensions fixed to the lower auger flighting and projecting outwardly and upwardly therefrom, whereby material contained in the lower portion of the tank is engaged lifted and agitated by said extensions.
Claim 6
Dependent Claim
148 words
In a portable grinder-mixer of the type having a wheel supported frame, a mixing tank disposed on said frame and having a lower conical shape portion with walls extending generally downwardly and inwardly, means for feeding material to and from said mixing tank, the improvement comprising an upright generally centrally disposed auger rotatively mounted within said mixing tank and comprising, an upright auger tube rotatively mounted within said mixing tanks; auger flighting wound around upper and lower portions of said auger tube and particularly adapted to convey material upwardly within said mixing tank, said lower auger flighting having an outside diameter spaced inwardly from the walls of the lower portion of said tank; and one or more extensions fixed to the lower auger flighting and projecting outwardly and upwardly therefrom, whereby material contained in the lower portion of the tank is engaged lifted and agitated by said extensions.
Claim 7
Dependent Claim
20 words
A grinder-mixer, as recited in claim 4, wherein said one or more extensions includes two extensions phased approximately 180* apart.
Claim 8
Dependent Claim
52 words
A grinder-mixer, as recited in claim 4, wherein said lower auger flighting has an outside diameter greater than the upper auger flighting, and wherein said one or more extensions include two extensions fixed to portions of the lower auger flighting and projecting outwardly and upwardly therefrom in axial circumferentially spaced apart relationship.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |