Method of manufacturing substantially pure rawhide pet products
AssigneeRawhide Select
InventorsStuart Greenberg, Guy Fere, Albertine Sharples
Life of this patent
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Abstract
A substantially pure rawhide product and a mechanical method for manufacturing a substantially pure rawhide treat or chew for pets utilizing a double screw extruder with a number of heating zones and interchangeable extrusion dies. The method allows for the use of wet rawhide or rawhide scraps and contemplates the addition of various additives to the rawhide product. Also claimed is a double screw extruder especially adapted for the preparation of substantially pure rawhide treats.
Claims16
A method of manufacturing a substantially pure rawhide pet product comprising:
- (a) providing a substantially pure rawhide which has not been substantially dehydrated,
- (b) heating said rawhide, and
- (c) extruding said rawhide through a double screw extruder with a die plate.
A method of manufacturing a rawhide pet product comprising:
- (a) providing a substantially pure rawhide which has not been substantially dehydrated,
- (b) heating said rawhide,
- (c) extruding said rawhide through a double screw extruder and a die plate, wherein said double screw extruder comprises:
- a pair of shafts, and a plurality of interchangeable elements assembled on said shafts.
A substantially pure rawhide product for pets, manufactured by a method comprising:
- (a) providing a substantially pure rawhide which has not been substantially dehydrated,
- heating said rawhide, and
- extruding said rawhide through a double screw extruder and a die plate.
A method of manufacturing a substantially pure rawhide pet product comprising:
- (a) providing a first batch of substantially pure rawhide which has not been substantially dehydrated,
- (b) heating said rawhide,
- (c) extruding said rawhide through a first double screw extruder and a coextrusion die into a tube,
- (d) providing a second batch of substantially pure rawhide which has not been substantially dehydrated,
- (e) heating said second batch of rawhide, and
- (f) extruding said second batch of rawhide with a second double screw extruder through said coextrusion die such that the extruded rawhide fills the tube.
A method of manufacturing a rawhide product comprising coextruding a tube of substantially pure rawhide and a filler that comprises substantially pure rawhide.
Dependencies are inferred from the claim text.