Abstract: This invention involves a locking mechanism that prevents the blade assembly of a mechanical meat tenderizer from becoming worn or non-functional. The locking mechanism is easily retrofitted into machines having blade assemblies and stripper frames and is a simple bar that mates with a slot in a screw nut.

Abstract: This invention provides a structure for meat tenderizers which substantially reduces the time and complexity of blade removal. A stripper frame is used which not only has an open side but also has mating sections which will mate with a separator holder in a simple and convenient construction.

Abstract: This invention involves a powered handheld meat tenderizer. The tenderizer has features that provide easy access to the blades for cleaning, oiling and blade replacement. Since a motor provides the energy to move the blades in an up and down motion, little, if any, manual pressure is required during the tenderizing process. The blades are movably attached to the power source and are easily activated by a trigger or other activating means similar to those used on an electric drill.

Abstract: An improved hand operated meat tenderizer is disclosed which is easier to use and to keep clean than those of the prior art.

Abstract: Meat tenderizing apparatus comprising a vertically reciprocatable ram mechanism which carries a plurality of meat-piercing elements. Each of said elements is individually mounted and is provided with separate guiding means and with individual meat stripping means adapted to be moved with said element to engage a cut of meat to be tenderized and to be held against said cut of meat during withdrawal of said element. Means is provided on said ram mechanism for individually releasing any piercing element that encounters a hard substance such as a bone in penetrating said cut of meat.

Abstract: A hand meat tenderizer which allows a plurality of incisions to be made simultaneously in a meat cut and which comprises a plurality of penetrating or piercing elements held by a handle and a stripping plate tending to retract said elements.