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Class Information
Number: 4/501
Name: Baths, closets, sinks, and spittoons > Pool type > Accessory > Covering > Including storage area > On pool bottom
Description: Subject matter wherein the cover rests on the lowest part of the pool when not in a covering position.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7464416 |
Passive tensioning mechanism for underwater buoyant-slat automatic pool cover systems |
Dec. 16, 2008 |
| 7409732 |
Providing unidirectional hinge, increased buoyancy and passive tensioning for buoyant-slat automatic pool cover systems |
Aug. 12, 2008 |
| 6851230 |
Padding device from an above-ground pool and its associated method of installation |
Feb. 8, 2005 |
| 6799606 |
Drainage pipe covering kit for use during building or floor construction |
Oct. 5, 2004 |
| 6595243 |
Swimming pool plumbing water/debris barrier device and method |
Jul. 22, 2003 |
| 6473914 |
Flexible submersible panel for pool formed with elongated hollow elements and corresponding use |
Nov. 5, 2002 |
| 6195812 |
System for raising and lowering a liner of a fluid bearing receptacle |
Mar. 6, 2001 |
| 5347773 |
Rigid cover assignment for swimming pool or basin |
Sep. 20, 1994 |
| 4937896 |
Floor-level adjusting device for a pool |
Jul. 3, 1990 |
| 4851275 |
Covering used to protect water conditions of nursery pool from damage by acid rain and extraordinary temperatures |
Jul. 25, 1989 |
| 4831672 |
Floor-level adjusting device for a pool |
May. 23, 1989 |
| 4716603 |
Swimming pool cover |
Jan. 5, 1988 |
| 4672691 |
Bulk volume fermenter |
Jun. 16, 1987 |
| 4364131 |
Liquid reservoir |
Dec. 21, 1982 |
| 4236258 |
Automatic swimming pool cover |
Dec. 2, 1980 |
| 4229843 |
Pool floor |
Oct. 28, 1980 |
| 4129905 |
Swimming pool rescue net |
Dec. 19, 1978 |
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