| |
 |
|
Class Information
Number: 4/508
Name: Baths, closets, sinks, and spittoons > Pool type > Construction details > Including water inlet or outlet means > And water level control
Description: Subject matter including means to keep the water at a certain height.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7395559 |
Swimming pool water level controller |
Jul. 8, 2008 |
| 7213275 |
Float operated hydraulic suction fuse for swimming pools |
May. 8, 2007 |
| 7146658 |
Pool skimmer |
Dec. 12, 2006 |
| 7117905 |
System and method for automatically filling a liquid receptacle |
Oct. 10, 2006 |
| 7096898 |
System and method for automatically filling a liquid receptacle |
Aug. 29, 2006 |
| 7089607 |
Pool drain assembly with annular inlet |
Aug. 15, 2006 |
| 7076813 |
Pool skimmer |
Jul. 18, 2006 |
| 7003817 |
Tank with automatic fill and overfill drain |
Feb. 28, 2006 |
| 6966079 |
Pool skimmer |
Nov. 22, 2005 |
| 6910498 |
Liquid level controller |
Jun. 28, 2005 |
| 6895608 |
Hydraulic suction fuse for swimming pools |
May. 24, 2005 |
| 6826787 |
Controller |
Dec. 7, 2004 |
| 6779205 |
Vacuum surge suppressor for pool safety valve |
Aug. 24, 2004 |
| 6754915 |
Scupper with automatic shutoff valve |
Jun. 29, 2004 |
| 6747367 |
Controller system for pool and/or spa |
Jun. 8, 2004 |
| 6718567 |
Swimming pool water level controller |
Apr. 13, 2004 |
| 6701542 |
Floating weir skimmer for a flexible-walled above-ground pool |
Mar. 9, 2004 |
| 6611968 |
Water body (e.g., pool) water level replenishment system and method |
Sep. 2, 2003 |
| 6546944 |
Fluid siphon outlet sensor system |
Apr. 15, 2003 |
| 6276200 |
Liquid level controller |
Aug. 21, 2001 |
| 6263906 |
Overflow proof fluid level controller |
Jul. 24, 2001 |
| 6223359 |
Automatic water level system for swimming pools |
May. 1, 2001 |
| 6158064 |
Water level adjustment device |
Dec. 12, 2000 |
| 6128792 |
Retractable aerator |
Oct. 10, 2000 |
| 6080324 |
Swimming pool surge pit filter |
Jun. 27, 2000 |
| 6035879 |
Automatic fill valve assembly |
Mar. 14, 2000 |
| 6003164 |
Pool monitor and controller |
Dec. 21, 1999 |
| 5996138 |
System and method for contributing to the control of the total dissolved solid levels in a pool and for conserving water |
Dec. 7, 1999 |
| 5992447 |
Device for filling vinyl lined pools |
Nov. 30, 1999 |
| 5937453 |
Pool skimmer face plate and releasable cover |
Aug. 17, 1999 |
| 5878447 |
Automatic water regulator apparatus for filling a swimming pool or comparable body of water when the water level is low |
Mar. 9, 1999 |
| 5836022 |
Automatic liquid level control apparatus |
Nov. 17, 1998 |
| 5804080 |
Computer controlled method of operating a swimming pool filtration system |
Sep. 8, 1998 |
| 5790991 |
Apparatus for automatically regulating water level in a swimming pool |
Aug. 11, 1998 |
| 5730861 |
Swimming pool control system |
Mar. 24, 1998 |
| 5655232 |
Fluid level control device and method |
Aug. 12, 1997 |
| 5628896 |
Apparatus for operating a filter arrangement |
May. 13, 1997 |
| 5616239 |
Swimming pool control system having central processing unit and remote communication |
Apr. 1, 1997 |
| 5596773 |
Water level control device |
Jan. 28, 1997 |
| 5555877 |
Cover for pond used to collect solar radiation |
Sep. 17, 1996 |
| 5475879 |
Swimming pool overflow protector |
Dec. 19, 1995 |
| 5459886 |
Hydraulic pool overfill control |
Oct. 24, 1995 |
| 5385084 |
Variable flow apparatus for cooking food |
Jan. 31, 1995 |
| 5367723 |
Valve for regulating water level in a swimming pool |
Nov. 29, 1994 |
| 5365617 |
Retrofit swimming pool water leveler and method |
Nov. 22, 1994 |
| 5253374 |
Method and apparatus for maintaining level of water in above-ground swimming pools |
Oct. 19, 1993 |
| 5247710 |
Reservoir level control system |
Sep. 28, 1993 |
| 5203038 |
Water level sensing apparatus for a swimming pool |
Apr. 20, 1993 |
| 5195191 |
Pool skimmer mount |
Mar. 23, 1993 |
| 5154205 |
Method and apparatus for maintaining level of water in above-ground swimming pools |
Oct. 13, 1992 |
|
|
|
