Patent ID: 11891821
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 13:
14. An improved mini-concrete trowel attachment apparatus connected to a prime mover tool, comprising:
a rotary stabilizer having a top surface and a bottom surface with a plurality of spaced apart screw holes extending there through;
a plurality of replacement blades attached to the bottom surface of the rotary stabilizer;
the plurality of replacement blades including a front contact smoothing portion with an upturned outer peripheral edge, an intermediate portion having one end extending from and connected to a rear end of the front contact portion at an inclined angle, and a rear flat portion having a front end extending from and connected to the other end by the intermediate inclined angle portion defining a unitary member;
each of the rear flat portions of the plurality of replacement blades includes at least a pair of elongated securing slots located at a back end thereof for aligning with the plurality of spaced apart screw holes in the rotary stabilizer;
a plurality of screw members inserted through the at least a pair of elongated securing slots and through the spaced apart screw holes of the rotary stabilizer for adjustably securing each of the plurality of replacement blades directly to the rotary stabilizer at a selective position near and inward of an annular peripheral edge of the rotary stabilizer; and
a free-wheeling bearing guide ring assembly being removably attached directly to and positioned near and outward of the annular peripheral edge of the rotary stabilizer, and each of the plurality of replacement blades are adjustable along the at least a pair of elongated slots to secure each of the plurality of replacement blades at a selective position adjacent and inward of an annular peripheral edge of the free-wheeling bearing guide ring assembly by the plurality of screw members.