Self-righting pool cleaning robot

Details Self-righting pool cleaning robot Self-righting pool cleaning robot

2007-11-07

2010-02-16

Swinehart, Ed (Department: 3617)

Ships

Implements

Hull cleaning

C114S121000

Reexamination Certificate

active

07661381

ABSTRACT:
A vehicle includes a submersible housing and a propulsion mechanism, which is coupled to drive the housing over an interior surface of a container in which the housing is submerged. A hollow tube is fixed to the housing and is configured to be filled with a fluid having a first specific gravity. One or more objects, which have a second specific gravity that is less than the first specific gravity, are contained within and capable of moving inside the hollow tube so as to stabilize the housing in response to changes of an angle of the interior surface over which the vehicle travels.

REFERENCES:
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patent: 5351355 (1994-10-01), Chiniara et al.
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patent: 6409916 (2002-06-01), Zelas et al.
patent: 6473927 (2002-11-01), Sommer et al.
patent: 2008/0099409 (2008-05-01), Gorelik et al.
patent: 2008/0105188 (2008-05-01), Gorelik et al.
U.S. Appl. No. 11/588,510, filed on Oct. 26, 2006.
U.S. Appl. No. 60/857,733, filed on Nov. 7, 2006.

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