IP Library › Granted Patent US 12,677,840
Granted Patent B2
US 12,677,840 · App. 18/971,307 · Granted Jul 14, 2026

Apparatus and method for separating meat from bone

Inventors: Kenneth Benjamin Gulak (Oakville, CA); Neil Metcalfe (Oakville, CA)
Assignee: POSS DESIGN LIMITED
A22C17/004
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,677,840
App. No.
18/971,307
Filed
Dec 6, 2024
Granted
Jul 14, 2026
Kind
B2
Art Unit
3643
USPC
452/135
Abstract

An apparatus and method for separating meat from bone. Meat-laden bones are fed to a compression screw rotating within a barrel. The compression screw and the barrel cooperate to progressively compress the meat-laden bones to force the meat-laden bones radially outward against an inner wall of the barrel as the meat-laden bones move axially along the compression screw. At least a portion of the meat is separated from the meat-laden bones by forcing the meat through apertures in the barrel while inhibiting the meat-laden bones from co-rotating along within the barrel with the compression screw. In one embodiment, inhibiting the meat-laden bones from co-rotating within the barrel along with the compression screw is accomplished by cooperation of guide channels extending axially along an inner surface of the barrel with curved fillets extending between a root of the compression screw and screw flights of the compression screw.

Claims (8)

1 . A method of separating meat from bone, comprising:

feeding meat-laden bones to a compression screw rotating within a barrel;

wherein the compression screw and the barrel cooperate to progressively compress the meat-laden bones to force the meat-laden bones radially outward against an inner wall of the barrel as the meat-laden bones move axially along the compression screw; and

separating at least a portion of the meat from the meat-laden bones by forcing the meat through apertures in the barrel while inhibiting the meat-laden bones from co-rotating within the barrel along with the compression screw.

2 . The method of claim 1 , wherein inhibiting the meat-laden bones from co-rotating within the barrel along with the compression screw is accomplished by cooperation of:

guide channels extending axially along an inner surface of the barrel; with

curved fillets extending between a root of the compression screw and screw flights of the compression screw.

3 . The method of claim 1 , further comprising feeding the meat forced through the apertures to a second stage separator.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 21, 2026
From: GULAK, KENNETH BENJAMIN; METCALFE, NEIL
To: POSS DESIGN LIMITED
Reel/Frame 074727/0244 →
Continuity (3)
Continuation 18414381 · Jan 16, 2024
Provisional Application 63480390 · Jan 18, 2023
Related Publication 20250176568A1 · Jun 5, 2025
References Cited (30)
US 3741772A · McFarland · 1973 [cited by examiner]
US 4041572A · Martin et al. · 1977 [cited by applicant]
US 4042176A · Beck · 1977 [cited by applicant]
US RE32060E · McFarland · 1985 [cited by examiner]
US 5160290A · Richburg · 1992 [cited by applicant]
US 5580305A · McFarland · 1996 [cited by examiner]
US 5813905A · Boeijen et al. · 1998 [cited by applicant]
US 8882571B2 · Hazenbroek et al. · 2014 [cited by applicant]
US 9107426B2 · Eisiminger · 2015 [cited by examiner]
US 10888872B2 · Rochedreux · 2021 [cited by applicant]
US 20100087129A1 · Gulak · 2010 [cited by applicant]
US 20120178350A1 · Mcfarland · 2012 [cited by applicant]
EP 0627168A1 · 1994 [cited by applicant]
EP 2783572A1 · 2014 [cited by applicant]
JP 2019136003A · 2019 [cited by applicant]
WO 8804893A1 · 1988 [cited by applicant]
WO 9406302A1 · 1994 [cited by applicant]
WO 199804141A1 · 1998 [cited by applicant]
WO 20110193701A1 · 2011 [cited by applicant]
WO 2015005792A1 · 2015 [cited by applicant]
Applicant: Poss Design Limited; “Apparatus and method for Separating Meat from Bone”; European Application No. 24152737; Extended European Search Report; Dated Mailed: Jun. 20, 2024; 11 pgs. [cited by applicant]
Provisur Technologies; Recover More Raw Material and Boost Profits with the Bone Cannon; Youtube Video; Bone Cannon Hydrau Press Separator; https://www.provisur.com/en/equipment/separation/bone-cannon-hydrau-separator/;… [cited by applicant]
Provisur Technologies; Separation Bone Cannon—“Advanced Meat Recovery System”. [cited by applicant]
Provisur Technologies; Youtube: Bone Cannon® Meat Separator | Pre-Sizer; Video; Apr. 11, 2024; https://www.youtube.com/watch?v=rtDJJ2hxqK0; 2 pgs. [cited by applicant]
Youtube: Meat Harvester DMM | Marel; Video; https://marel.com/en/products/meat-harvester-dmm/pig-pork/; 6 pgs. [cited by applicant]
Youtube: Meat Harvesting Systems for the Food Industry | Marel; Video; https://marel.com/en/meat/pig-pork/secondary-processing/meat-harvesting/; Apr. 11, 2024; 4 pgs. [cited by applicant]
Youtube: ProFive Meat Harvester for Park | Marel; Video; https://marel.com/en/products/profive/pig-pork/, Apr. 11, 2024; 6 pgs. [cited by applicant]
Youtube: ProTen—Advancedmeat harvesting of pork with an unprecedented capacity; https://marel.com/en/products/proten/pig-pork/; Apr. 11, 2024; 5 pgs. [cited by applicant]
Youtube: Automated Conveyor Systems UK Designed at C-Trak Ltd Oct. 2020; Video; https://www.youtube.com/watch?v=mvE8k68s0i4; 2 pgs. [cited by applicant]
Youtube: ProTen Prok Bones—High Capacity Meat Harvesting; Meat Market; Video; https://marel.com/products-solutions/ . . . ; Apr. 11, 2024; 2 pgs. [cited by applicant]