Patent ID: 7182868

Claim:
A device for filtering fluid substances for use in a meat material injecting machine said device comprising: a container for temporarily holding a fluid to be filtered, said container having buoy means to maintain a substantially constant fluid level in the container and a sucking outlet connected to suction means, said suction outlet being located at or near a bottom of the container; collecting means submerged in the fluid in the container and connected to said sucking outlet; first and second valve devices associated with said collecting means and having respective valve elements independently pivotable between open and closed positions; first and second supports respectively attached to said valve elements; first and second filter units respectively fixed by attachment means to said first and second supports and respectively communicated with inlets of the first and second valve devices; each of said supports being able to independently pivot between a laying working position, in which the whole filter unit fixed thereto is submerged in the fluid near the bottom of the container and the corresponding valve device is in an open position, and an upright cleaning and maintenance position, in which at least said attachment means are emerged and accessible to be released and the valve device is in a closed position; wherein: said attachment means are located at a proximal end of each filter unit, nearer the corresponding valve device; each filter unit is communicated at said proximal end with the corresponding valve device inlet by means of a respective connection pipe; and the length of each support between the proximal end of the filter unit and the valve device is sufficient to keep, when the corresponding support is in said upright cleaning and maintenance position, the attachment means and the whole of the filter unit above the level of the fluid to be filtered contained in said container.