US 11,808,050 B2
Lift system for a spa cover
Wade Spicer, Northumberland, PA (US); and Charles M. Woods, West Manchester, OH (US)
Assigned to STRONG INDUSTRIES, INC, Northumberland, PA (US)
Filed by STRONG INDUSTRIES, INC., Northumberland, PA (US)
Filed on May 10, 2022, as Appl. No. 17/740,521.
Application 17/740,521 is a continuation of application No. 16/774,210, filed on Jan. 28, 2020, granted, now 11,359,396.
Claims priority of provisional application 62/797,768, filed on Jan. 28, 2019.
Prior Publication US 2022/0268043 A1, Aug. 25, 2022
Int. Cl. E04H 4/08 (2006.01); E05F 1/14 (2006.01)
CPC E04H 4/084 (2013.01) [E05F 1/14 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A lift system for a spa cover, comprising:
a first lift assembly configured for coupling to a first side of a spa, the first lift assembly including a motor and a first lever arm, the first lever arm having a first end configured for driving connection to the motor, and a second end configured for operative connection to a spa cover; and
a clutch assembly configured to transmit torque from the motor to the first lever arm, the clutch assembly including a drive plate rotatably driven by the motor, a clutch plate arranged parallel to the drive plate, and a plurality of projections extending from one of the drive plate and the clutch plate and being configured to engage a corresponding plurality of recesses in the other of the drive plate and the clutch plate;
wherein when the plurality of projections are seated in the plurality of recesses, rotation of the drive plate imparts a corresponding rotation of the clutch plate via engagement of the projections with the recesses; and
wherein when the plurality of projections are not seated in the plurality of recesses, the drive plate is permitted to rotate while the clutch plate remains stationary.