Probe locking washer

A probe locking washer for substantially preventing unwanted rotation of a probe mounted on a mounting post having a boss forming a base disposed on a receiver of an animal training device, said probe locking washer comprising;

• a disc member having an upper surface and a lower surface and a centrally disposed hole member;
• a countersink member disposed in said lower surface of said disk member and adapted for receiving the boss when said disc member is disposed proximal of the base of the mounting post;
• a plurality of internal radial spline teeth carried by said countersink member, wherein said internal radial spline teeth have tapered points;
• and
• a raised rib member carried by said upper surface of said disc member adapted for receiving the probe and for substantially preventing rotation of the probe within said rib member.

A probe locking washer for substantially preventing unwanted rotation of a probe mounted on a mounting post having a boss forming a base disposed on a receiver of an animal training device, said probe locking washer comprising;

• a disc member having an upper surface and a lower surface and a centrally disposed hole member;
• a countersink member disposed in said lower surface of said disk member and adapted for receiving the boss when said disc member is disposed proximal of the base of the mounting post;
• a plurality of internal radial spline teeth disposed within said interior of said countersink member, said countersink member for engaging the boss forming the base of the mounting post when the probe is secured to the mounting post;
• and
• a raised rib member carried by said upper surface of said disc member adapted for receiving the probe and for substantially preventing rotation of the probe within said rib member, wherein said probe has an hexagonal cross-section and said rib member defines a hexagon sized so as to tightly receive the probe, whereby said rib member locks the probe to said probe locking washer, whereby said rib member locks the probe to the probe locking washer while said plurality of internal radial spline teeth frictionally engage the boss forming the base of the mounting post, thereby substantially preventing undesired rotation of the probe and said probe locking washer due to vibration when the probe is secured to the mounting post.