Providing unidirectional hinge, increased buoyancy and...

Details Providing unidirectional hinge, increased buoyancy and... Providing unidirectional hinge, increased buoyancy and...

2004-11-03

2008-08-12

Huynh, Khoa D (Department: 3751)

Baths, closets, sinks, and spittoons

Pool type

Accessory

C004S498000, C004S501000

Reexamination Certificate

active

07409732

ABSTRACT:
Invented techniques and associated mechanisms are described for eliminating bi-directional flexure properties of coupled buoyant-slats forming a pool cover while simultaneously increasing the buoyancy of a leading or front portion of the cover and for assuring that the spiraling layers of wound-up layers of a buoyant pool cover are, and remain tightly wound around a submerged, rotatable cover drum at all times.

REFERENCES:
patent: 3613126 (1971-10-01), Granderath
patent: 4411031 (1983-10-01), Stolar
patent: 4577352 (1986-03-01), Gautheron
patent: 5732846 (1998-03-01), Helge
patent: 5761750 (1998-06-01), Mazzola et al.
patent: 5860413 (1999-01-01), Bussey et al.
patent: 19807576 (1998-10-01), None
patent: 0369038 (1988-11-01), None
patent: 0369038 (1988-11-01), None

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