US3841569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separating meat from bones
Assignee: Kartridg Pak Co
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Filing: 1972-11-20
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Granted: 1974-10-15
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Expires: 1992-11-20
Abstract
Abstract Small fragments or pieces of bone with meat attached thereto are loaded as a mass into a compression chamber provided with a piston entering from one end and a foraminous wall at the opposite end. The piston is advanced toward the foraminous wall until the volume and compressibility of the mass are both substantially reduced. During compression the meat extrudes in fluidized form through the foramina leaving a press cake the meat content of which is substantially reduced from that of the mass introduced into the compression chamber. The calcium content of the extruded meat is not substantially or objectionably increased as a result of the compression action. For example, the calcium content is held below the permissible level, e.g., 1 percent by weight bone equivalent for red meats.
Inventors
- 👤 J Engelhardt
- 👤 R Rousseau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:09
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/0056
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
113 words
THE METHOD OF SEPARATING ATTACHED MEAT FROM A MASS OF BONE PIECES OR SMALL BONES WHICH COMPRISES, COMPRISING SAID MASS IN A MEANS PROVIDING A CHAMBER ESSENTIALLY IN A SINGLE DIRECTION TO A SUBSTANTIALLY REDUCED VOLUME, COLLECTING THE MEAT WHICH EXTRUDES FROM SAID MASS THROUGH A MEANS PROVIDED WITH A FORAMINUOUS SURFACE DURING SAID COMPRESSION AND REOVING THE RESULTANT PRESS CAKE THE MEAT CONTENT OF WHICH HAS BEEN SUBSTANTIALLY REDUCED, ONLY THE BONE PIECES OR SMALL BONES AT THE SURFACE OF SAID PRESS CAKE PROXIMATE TO SAID FORMAINUOUS SURFACE HAVING DIRECT ENGAGEMENT WITH SAID FORMAINOUS SURFACE AND WITH SAID ENGAGEMENT BEING ESSENTIALLY NORMAL TO SAID FORAMINOUS SURFACE SUBSTANTIAL WORKING ACTION AGAINST SAID SURFACE.
Claim 2
Independent Claim
113 words
THE METHOD OF SEPARATING ATTACHED MEAT FROM A MASS OF BONE PIECES OR SMALL BONES WHICH COMPRISES, COMPRISING SAID MASS IN A MEANS PROVIDING A CHAMBER ESSENTIALLY IN A SINGLE DIRECTION TO A SUBSTANTIALLY REDUCED VOLUME, COLLECTING THE MEAT WHICH EXTRUDES FROM SAID MASS THROUGH A MEANS PROVIDED WITH A FORAMINUOUS SURFACE DURING SAID COMPRESSION AND REOVING THE RESULTANT PRESS CAKE THE MEAT CONTENT OF WHICH HAS BEEN SUBSTANTIALLY REDUCED, ONLY THE BONE PIECES OR SMALL BONES AT THE SURFACE OF SAID PRESS CAKE PROXIMATE TO SAID FORMAINUOUS SURFACE HAVING DIRECT ENGAGEMENT WITH SAID FORMAINOUS SURFACE AND WITH SAID ENGAGEMENT BEING ESSENTIALLY NORMAL TO SAID FORAMINOUS SURFACE SUBSTANTIAL WORKING ACTION AGAINST SAID SURFACE.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said bone pieces are formed by breaking trimmed bones.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein said small bones comprise bony carcass components.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein said extruded meat is not substantially increased with respect to a normal calcium content of said meat.
Claim 6
Independent Claim
151 words
The method of separating attached meat from bone fragments and particles which comprises, compressing a mass of said bone fragments and particles within a strong-walled chamber means one wall of which is formed by a piston and at least a substantial portion of a wall surface opposing said piston is foraminous with the foramina being appreciably smaller than said bone fragments and particles, said piston and said foraminous surface of said wall being advanced relative to each other until the compressibility of said mass has been substantially reduced, collecting the meat which extrudes through said foramina of said wall and removing the resultant press cake from said chamber, only the bone fragments and particles at the surface of said press cake proximate to said foraminous surface having direct engagement with said foraminous surface and with said engagement being essentially normal to said foraminous surface without substantial working action against said surface.
Claim 7
Independent Claim
151 words
The method of separating attached meat from bone fragments and particles which comprises, compressing a mass of said bone fragments and particles within a strong-walled chamber means one wall of which is formed by a piston and at least a substantial portion of a wall surface opposing said piston is foraminous with the foramina being appreciably smaller than said bone fragments and particles, said piston and said foraminous surface of said wall being advanced relative to each other until the compressibility of said mass has been substantially reduced, collecting the meat which extrudes through said foramina of said wall and removing the resultant press cake from said chamber, only the bone fragments and particles at the surface of said press cake proximate to said foraminous surface having direct engagement with said foraminous surface and with said engagement being essentially normal to said foraminous surface without substantial working action against said surface.
Claim 8
Dependent Claim
39 words
The method of claim 5 wherein during the compression of said mass the hydrostatic pressure on said mass increases several fold while the rate of relative advance of said piston and foraminous surface toward each other decreases several fold.
Claim 9
Dependent Claim
43 words
The method of claim 5 wherein said meat attached to the bone is raw, it is not denatured during the process, and the calcium content of said extruded meat is not substantially increased with respect to the normal calcium content of said meat.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |