Patent ID: 8904677

Claim:
A locking pin assembly, comprising: an elongate pin housing having a blind bore extending from one end of the housing to about midway along the length thereof; a pin mechanism having a portion inserted into and selectively rotatable in the blind bore of the pin housing, the pin mechanism having: at least one rotator section having a cam knob rotatable between an unlocked position adapted for sliding through a groove in an excavator tooth and a locked position adapted for locking the tooth on a base, the cam knob being aligned with the groove in the unlocked position and misaligned with the groove in the locked position, the cam knob remaining outside the -bore; a shaft section integral with the rotator section, the shaft section and the rotator section having a keyhole extending therethrough; an elongate post slidably disposed in the keyhole and extending into the blind bore; a rotation-locking mechanism disposed between the at least one rotator section and the elongate post; the rotation-locking mechanism being selectively engageable between locked and unlocked positions; a spring disposed behind the rotation-locking collar in the blind bore of the pin housing; and a key selectively insertable into the keyhole, the key selectively pushing the elongate post against the bias of the spring in order to selectively disengage the rotation-locking mechanism for subsequent rotation of the rotator section between locked and unlocked positions.