Patent US3901483A successfully refreshed from Google Patents.
US3901483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for mixing materials, including ground meat
Assignee: Individual
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Filing: 1973-07-13
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Granted: 1975-08-26
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Expires: 1993-07-13
Abstract
Abstract An apparatus which is intended to mix different constituents such as fat and lean ground meat, into a homogenous mixture of material. The constituents are fed into a housing defining a mixing chamber. A shaft, provided with radial arms, rotates in an upper region of the mixing chamber, to mix the material. A screw conveyor rotates in a lower region of the chamber with the flights of the screw conveyor arranged to move the material from the opposite ends of the chamber towards its center. A central outlet in the bottom of the housing is controlled by a slidable closure. During mixing, with the outlet closed, the material fed towards the center by conveyor is forced to move upwardly into the upper region so that there is a flow of material from the lower region to the upper region and back again during the mixing process. This avoids settling of the more flowable components of the material into the lower region of the mixing chamber because they are continuously carried back up into the body of the mix. After mixing, the outlet is opened and the blend is forced downwardly through the outlet by a rotating paddle mounted on the conveyor shaft thus preventing bridging.
Inventors
- 👤 William Lasar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:52
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/75; A; A22; A22C; A22C5/00; B01F27/00; B01F27/60; B01F27/70; B01F27/701; B01F27/72; B01F27/726; B02; B02C; B02C18/00; B02C18/30; B02C18/301; B02C18/302
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
307 words
An apparatus for mixing materials such as foodstuffs, the apparatus comprising: a housing defining a longitudinally and vertically extending mixing chamber, said chamber adapted to receive the materials to be mixed; mixing means connected with said housing for exerting a mixing action on the materials within said chamber; a casing connected to the lower end of said housing, said casing defining an outlet chamber positioned beneath said mixing chamber, said casing having, a casing inlet opening, a casing exit opening; a housing outlet opening at the lower end of said housing generally coextensive and aligned with said casing inlet opening for passage of material outwardly of said mixing chamber into said outlet chamber through said openings; conveyor means connected to said casing for moving material therein from said casing inlet opening to said casing exit opening; a generally rectangular U-shaped guide frame positioned between said housing and said casing extending about at least a portion of the periphery of said housing outlet opening; a door mounted in said guide frame for guided motion between a closed position in which said door closes said housing outlet opening and an open position in which said housing outlet opening is unobscured by said door, said guide frame and said door being entirely separable from said housing and said casing for cleaning, said guide frame having, two spaced opposed arms guiding said door for sliding motion therebetween; a cross member connecting said arms at one end thereof; a keeper member contacting the opposite ends of said arms extending therebetween; the apparatus further including: projecting portions on at least one of said housing and said casing, said projecting portions engaging said arms and said members on the interior surfaces thereof; and releasable securing means connecting said keeper member to said arms for securing said arms and said members to said projecting portions.
Claim 2
Independent Claim
307 words
An apparatus for mixing materials such as foodstuffs, the apparatus comprising: a housing defining a longitudinally and vertically extending mixing chamber, said chamber adapted to receive the materials to be mixed; mixing means connected with said housing for exerting a mixing action on the materials within said chamber; a casing connected to the lower end of said housing, said casing defining an outlet chamber positioned beneath said mixing chamber, said casing having, a casing inlet opening, a casing exit opening; a housing outlet opening at the lower end of said housing generally coextensive and aligned with said casing inlet opening for passage of material outwardly of said mixing chamber into said outlet chamber through said openings; conveyor means connected to said casing for moving material therein from said casing inlet opening to said casing exit opening; a generally rectangular U-shaped guide frame positioned between said housing and said casing extending about at least a portion of the periphery of said housing outlet opening; a door mounted in said guide frame for guided motion between a closed position in which said door closes said housing outlet opening and an open position in which said housing outlet opening is unobscured by said door, said guide frame and said door being entirely separable from said housing and said casing for cleaning, said guide frame having, two spaced opposed arms guiding said door for sliding motion therebetween; a cross member connecting said arms at one end thereof; a keeper member contacting the opposite ends of said arms extending therebetween; the apparatus further including: projecting portions on at least one of said housing and said casing, said projecting portions engaging said arms and said members on the interior surfaces thereof; and releasable securing means connecting said keeper member to said arms for securing said arms and said members to said projecting portions.
Claim 3
Dependent Claim
44 words
An apparatus as defined in claim 1, wherein said projecting portions are connected to said housing extending downwardly therefrom around said housing outlet opening and wherein said casing includes flat, upwardly facing, horizontal surfaces around said casing inlet opening to slidably support said door.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |