US2021040699A1PendingUtilityA1
Cordless electrically-powered concrete screed
Est. expirySep 4, 2038(~12.1 yrs left)· nominal 20-yr term from priority
E01C 19/24F16D 1/0894E01C 19/262F16D 1/076E04G 21/10E01C 19/201E04F 15/14E04F 21/248E01C 19/187E01C 19/29F16D 1/108
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Claims
Abstract
A power unit is configured for use as part of a concrete screed and includes a frame and a powered drive. The frame includes a drive housing. The powered drive is operably supported by the drive housing and is configured to rotate a rotatable concrete forming drum. The powered drive includes an electric motor and a battery operably coupled to the electric motor and configured to power the electric motor. The powered drive includes a drive shaft drivingly connectable relative to the drum, with rotation of the drive shaft causing corresponding rotation of the drum.
Claims
exact text as granted — not AI-modified1 . A power unit for a concrete screed including a rotatable concrete forming drum, said power unit comprising: a frame including a drive housing; and a powered drive being operably supported by the drive housing and configured to rotate the drum, said powered drive including an electric motor and a battery operably coupled to the electric motor and configured to power the electric motor, said powered drive including a drive shaft drivingly connectable relative to the drum, with rotation of the drive shaft causing corresponding rotation of the drum.
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