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US 6,871,426 B2Granted
Locking assembly and method
OwnerDavid Kim Keech, Alexander Handinventors
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OwnerDavid Kim Keech, Alexander Handinventors
Estimating the term…
A locking arrangement (1) for releasably locking a wear tooth (2) to a tooth adaptor (3); the wear tooth (2) being defined by a top wall, a bottom wall and a pair of opposed sidewalls, each sidewall having an elongate slot (5) therethrough; the tooth adaptor (3) being of generally complementary shape to receive said wear tooth (2), and having an elongate cavity (6) on each opposed side thereof adapted to substantially align with a respective slot (5) of said wear tooth (2) when said wear tooth is installed on said tooth adaptor; said slot having a first inner surface, the locking arrangement including a retaining means (4) to be installed in each aligned cavity and slot to releasably lock said tooth (2) to said adaptor (3), the retaining means (4) including a pair of engaging retaining pieces (7, 8) adapted to fit in end-abutting relationship when in said locked position, whereby, an arcuate force is applied to at least one of said pieces (7, 8) to release said pieces from said locked position.
A locking arrangement for releasably locking a wear tooth to a tooth adaptor, wherein the wear tooth comprises a cutting edge at a first end of the wear tooth, atop wall, a bottom wall and a pair of opposed sidewalls, each sidewall having an elongate slot therethrough disposed such that a longitudinal axis thereof extends in a direction substantially aligned cowards the cutting edge, and wherein the tooth adaptor is of substantially complementary shape to receive a second end of the wear tooth and comprises a pair of opposed walls and an elongate cavity on each opposed wall adapted to substantially align with a respective slot of the wear tooth when the wear tooth is installed on the tooth adaptor, the locking arrangement comprising:
A method for releasably locking a wear tooth to a tooth adaptor, wherein the tooth adaptor comprises a cutting edge at a first end of the tooth adaptor, a top wall, a bottom wall and a pair of opposed sidewall, each sidewall having an elongate slot therethrough disposed such that a longitudinal axis thereof extends in a direction substantially aligned towards the cutting edge, and wherein the tooth adaptor is of substantially complementary shape to receive a second end of the wear tooth, wherein the tooth adaptor comprises a pair of opposed walls and an elongate cavity on each, opposed wall adapted to substantially align with a respective slot of the wear tooth when the wear tooth is installed on the tooth adaptor, the method comprising the steps of:
Dependencies are inferred from the claim text.