Automatic pool cleaner gear change mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 16, 2008
Grant Date -
Nov 25, 2004
app pub date -
Jun 27, 2002
filing date -
Jul 3, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
|
US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A mechanism (106) for selecting one of a first gear (102) and a second gear (104) for driving an automatic swimming pool cleaner (10) includes a bi-stable oscillating gear change assembly (100). The assembly is moveable between a first position wherein the first gear is engaged and a second position wherein the second gear is engaged. A first magnet (142) is carried by the assembly. A second magnet (138, 140) is carried externally of the assembly on the cleaner body (18). A cam arrangement (152, 160) initiates movement of the assembly (100) from one of the first and second positions to enable mutually repelling forces between like poles of the first and second magnets (142, 138, 140) to cause the assembly to settle in another of the first position and the second positions, thereby to change between the first and second gears quickly and cleanly.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date | Type | Sub-Type |
|---|
International Classification(s)
- 2002 Application Filing Year
- E04H Class
- 520 Applications Filed
- 132 Patents Issued To-Date
- 25.39 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 25 Citation Count
- E04H Class
- 85.71 % this patent is cited more than
- 17 Age
