Patent US3629902A successfully refreshed from Google Patents.
US3629902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone and meat separator
Assignee: Meat Separator Corp
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Filing: 1970-06-04
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Granted: 1971-12-28
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Expires: 1990-06-04
Abstract
Abstract Apparatus for separating meat from low-density bones and gristle to provide an edible food product. The apparatus includes a plurality of pairs of counterrotating rollers having helical grooves in which said rollers are spaced slightly apart to permit relatively soft meat to be pulled between the rollers while the harder bone and gristle will not pass therethrough. The helical grooves cause the material on the upper portion of the rollers to be moved lengthwise of the rollers and simultaneously rotated or tumbled so that substantially all of the meat will be removed from the bones.
Inventors
- 👤 Gordon C Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:22
CPC Classifications
A; A22; A22C; A22C17/00; A22C17/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
25 words
The structure of claim 1 in which the helical groove of one roller has a different pitch from the helical groove of the other roller.
Claim 2
Dependent Claim
20 words
The structure of claim 1 in which said means for discharging bone includes a discharge conveyor having an endless belt.
Claim 3
Dependent Claim
16 words
The structure of claim 3 including scraper means for removing bones that cling to said belt.
Claim 4
Dependent Claim
21 words
The structure of claim 1 in which said pairs of rollers are located adjacent to but spaced slightly from each other.
Claim 5
Dependent Claim
26 words
The structure of claim 1 including means carried by said frame for directing meat and bone to the downwardly rotating surfaces of said pairs of rollers.
Claim 6
Dependent Claim
23 words
The structure of claim 1 in which each of said rollers includes a portion of reduced diameter between which the bone is discharged.
Claim 7
Dependent Claim
15 words
The structure of claim 1 including pan means for receiving meat passing between said rollers.
Claim 8
Dependent Claim
120 words
Apparatus for separating relatively soft material from relatively hard material comprising a frame, a plurality of pairs of rollers having generally cylindrical portions rotatably mounted on said frame, each of said rollers having a helical groove extending substantially the entire length of said cylindrical portions, the rollers of each pair having their cylindrical portions located adjacent to but spaced slightly from each other to permit relatively soft material to pass therebetween and to prevent the passage of relatively hard material, means for driving the rollers of each pair in counterrotating directions, and discharge conveyor means mounted on said frame in a position to receive relatively hard material from said generally cylindrical portions and to discharge the same from said apparatus.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |