The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 1977
Filed:
Sep. 03, 1974
Roy Settle Rousseau, Bettendorf, IA (US);
The Kartridg Pak Co., Davenport, IA (US);
Abstract
Apparatus for removing and recovering meat from trimmed and untrimmed bone fragments comprises a hollow sleeve open at one end for receiving a quantity of bone fragments to be processed. Hydraulic cylinders raise the sleeve to bring one end into engagement with an extrusion block, and a piston slidably disposed at the other end of the sleeve is advanced initially by relatively high speed jack cylinders and finally by a low speed ram cylinder to compress the bone fragments against the block. The extrusion block includes a plurality of concentric annular recesses and interfitting extrusion rings which form an inwardly facing foraminous surface through which meat recovered in fluid form as a result of the compression process passes. The rings are slidably received within the recesses to facilitate removal for cleaning, and are partially extended from the recesses by a pneumatic cylinder after each compression cycle to dislodge bone residue from the foraminous surface. A pressure seal is maintained between the sleeve and the piston and extrusion head by the combination of an O-ring fitted into an outer circumferential channel on the piston and an inner circumferential channel communicating with an outflow line which relieves pressure from the O-ring.