Wear cap for excavating tooth

Claim 1

IN AN EXCAVATING TOOTH, (A) AN ELONGATED ADAPTER EQUIPPED WITH (1) A POINT-RECEIVING NOSE AT THE FORWARD END THEREOF, (2) SHANK MEANS AT THE REAR END THEREOF FOR SECURING THE ADAPTER TO EXCAVATING EQUIPMENT, AND (3) TOP, BOTTOM AND SIDE SURFACES EXTENDING BETWEEN SAID NOSE AND SHANK MEANS, SAID TOP SURFACE HAVING (I) A LONGITUDINALLY-EXTENDING, CENTRALLY DISPOSED RECESS THEREIN, SAID RECESS EXTENDING ONLY PARTWAY LONGITUDINALLY OF SAID TOP SURFACE FROM SAID NOSE AND DEFINING A REAR BEARING SURFACE, SAID RECESS BEING GENERALLY TRAPEZOIDAL IN A TRANSVERSE DIRECTION, (II) A TOP SURFACE PORTION ADJACENT EACH SIDE SURFACE BEING ANGULARLY DOWNWARDLY INCLINED TOWARD ITS ASSOCIATED SIDE SURFACE, (B) A WEAR CAP MOUNTED ON SAID ADAPTER, COMPRISING A PLATE-LIKE BODY INCLUDING TOP, BOTTOM, END, AND SIDE WALLS, SAID BOTTOM WALL BEING EQUIPPED WITH (1) A CENTRALLY DISPOSED TONGUE EXTENDING PARALLEL TO SAID SIDE WALLS, SAID TONGUE HAVING A TRAPEZOIDAL SHAPE IN TRANSVERSE SECTION FOR SLIDING LOCKING RECEIPT IN SAID RECESS FROM THE NOSE END OF SAID RECESS, (2) A BOTTOM WALL PORTION ADJACENT EACH SIDE WALL BEING ANGULARLY DOWNWARDLY INCLINED TOWARD ITS ASSOCIATED SIDE WALL AND BEARING AGAINST A TOP SURFACE PORTION, (C) A POINT ON SAID NOSE, SAID POINT HAVING AN UPPER END PORTION IN CONFRONTING RELATION WITH THE FORWARD END WALL OF SAID TONGUE AND WITH THE REAR END WALL OF SAID TONGUE BEING IN CONFRONTING RELATION WITH SAID REAR BEARING SURFACE WHEREBY MOVEMENT OF SAID CAP LONGITUDINALLY OF SAID ADAPTER IS LIMITED, AND (D) MEANS RELEASABLY LOCKING SAID POINT ON SAID NOSE.