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Document Number
US Patent 7155756
Issued Date
January 2, 2007
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Inventors
Helder; Bruce A. (Grand Rapids, MI)
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Abstract
This invention encompasses an automated mechanism to remove a heavy and bulky insulating cover from an above-floor hot tub (or spa), and to provide a storage location for the cover when the tub is in use. The cover lifter can be fully automatic or semi automatic, and can be operated either electrically, or by fluid or air under pressure.
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Hot tub cover lifter - US Patent 7155756 Drawing
Drawing from US Patent 7155756
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Number of Claims:
3
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Published
January 2, 2007
Application Number
10/711,350
Filed
September 13, 2004
US Classification
4/498  
Int'l Classification
E04H   4/00   (20060101)  
Attorney/Law Firm
Parent Case
CROSS-REFERENCE TO RELATED APPLICATION This application claims the benefit of U.S. provisional application Ser. No. 60/481,365, filed Sep. 12, 2003, which is incorporated herein in its entirety.
USPTO Field of Search
4/498  
Related Patents
7600272 - Spa cover lifter and method - Owned by Merlin Technologies, Inc. (Hamilton, NJ)

A spa cover lifter for moving a spa cover from a closed position to a storage position includes a drive mechanism, a fixed base and a lifting arm assembly. The lifting arm assembly is mounted to first or second leaves of the spa cover. The lifting arm assembly is driven by the drive mechanism and is moveably mounted to the fixed base. The lifting arm assembly includes a cover pivoting assembly and a cover transporting assembly. The cover pivoting assembly is driven by the drive mechanism to move the cover from the closed position to an intermediate position and the cover transporting assembly is driven by the drive mechanism to the move the cover from the intermediate position to the storage position. The spa cover lifter has an automatic shutoff for cutting power when an obstacle is encountered. A method of moving the spa cover is also disclosed.

Claims
Description
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