Patent ID: 11950535
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 9:
10. A method of raking a granular material comprising:
inserting a supporting handle into a detachable rake device, the rake device having a rake body with a lock collar slot;
extending a plurality of extendable rake heads hingedly coupled to the rake body from a first position substantially parallel to a major axis of the rake body to a second position substantially perpendicular to the major axis of the rake body, wherein the step of extending the plurality of extendable rake heads comprises depressing an extension button on the rake body to actuate the extendable rake heads from the first position to the second position
engaging a rotatable lock collar coupled to the extendable rake heads with the lock collar slot in response to said rotation of the extendable rake heads to the second position;
extending a plurality of extendable raking tines through a plurality of raking tine apertures on the extendable rake heads, wherein the step of extending the plurality of extendable raking tines comprises a rotational cable mechanically coupled to the extension button to shift the extendable raking tines relative to the plurality of raking tine apertures from a retracted position to an extended position in response to movement of the extendable rake heads from the first position to the second position; and
contacting the extendable raking tines to the granular material.