Baths – closets – sinks – and spittoons – Pool type – Accessory
Reexamination Certificate
2002-09-05
2003-04-22
Fetsuga, Robert M. (Department: 3751)
Baths, closets, sinks, and spittoons
Pool type
Accessory
C049S255000, C220S263000
Reexamination Certificate
active
06550077
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a lifting mechanism for removing and replacing the cover of a spa. The use of spas has become widespread, and most spas are equipped with covers which when closed prevents debris, rain and the like from contaminating the tub water. The cover further serves to retain heat within the tub. As a consequence, spa covers tend to be relatively heavy and difficult to remove and replace. Lifting devices have been developed to aid in the removal and replacement of these relatively heavy spa covers which can be operated with varying amounts of difficulty. Some problems exist with past lifting mechanism designs. A unit with one lift bar can produce excessive wear on the edge of the spa and the bottom of the spa cover when the cover is slid and pushed to the “off” position. With only one lift bar rigidity suffers and the spa cover tends to become angularity offset when the operator pulls or pushes on one side only. Many lifters require the user to fold the cover at the half-way seam. If the wind is blowing at a stiff breeze this can be a difficult struggle for a young athletic person, an impossible task for the elderly or disabled person.
2. Description of Related Art
I have found a number of spa cover lifter patents using an “over the end” motion. Such as; Wall U.S. Pat. No. 5,048,153A; Ovelette U.S. Pat. No. 5,548,081A; Perry U.S. Pat. No. 5,819,332A; Pucci U.S. Pat. No. 5,974,600A; Tedrick U.S. Pat. No. 6,032,305A; Tedrick U.S. Pat. No. 6,393,630B1. I did not find any patents using the “lift and rotate” motion which I utilize in this invention.
REFERENCES:
patent: 693258 (1902-11-01), Gibson
patent: 2955452 (1960-11-01), Myers
patent: 3021530 (1962-02-01), Sears
patent: 3895400 (1975-07-01), Kelcey
patent: 4163295 (1979-08-01), Schutz
patent: 5531541 (1996-07-01), Clover et al.
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