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Class Information
Number: 184/103.1
Name: Lubrication > Lubricators > Constant level
Description: Device having a lubricant distributing-reservoir and means to automatically maintain a constant level of lubricant therein.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7325653 |
Thermally compensated standpipe assembly for automatic transmission oil fill |
Feb. 5, 2008 |
| 6928976 |
Apparatus for controlling a lubrication fluid level |
Aug. 16, 2005 |
| 6886664 |
Automotive fluid exchange system |
May. 3, 2005 |
| 6863156 |
Gearbox housing element and method for acting upon the oil level of a gearbox |
Mar. 8, 2005 |
| 6845847 |
Lubrication system and its modification method |
Jan. 25, 2005 |
| 6793042 |
Dual independent tank and oil system with single port filling |
Sep. 21, 2004 |
| 6533562 |
Two-stage oil injection into scroll compressors |
Mar. 18, 2003 |
| 6186666 |
Ring spindle and process for lubricating same |
Feb. 13, 2001 |
| 6125642 |
Oil level control system |
Oct. 3, 2000 |
| 5788013 |
Automatic horizontal replenishing device for liquid oil and the like |
Aug. 4, 1998 |
| 5688109 |
Oil-level controller for compressor |
Nov. 18, 1997 |
| 5562123 |
Overfill prevention valve |
Oct. 8, 1996 |
| 5400889 |
Clutch assembly with automatic oil level control system |
Mar. 28, 1995 |
| 5332064 |
Control apparatus for lubrication pump |
Jul. 26, 1994 |
| 5289898 |
Method and apparatus for maintaining lubricant in an internal combustion engine |
Mar. 1, 1994 |
| 5238085 |
Engine oil makeup and extended operation oil exchange system |
Aug. 24, 1993 |
| 5193646 |
Centralized lubrication apparatus |
Mar. 16, 1993 |
| 5159313 |
Oil supply system in an internal combustion engine for a vehicle |
Oct. 27, 1992 |
| 5101936 |
Vaccum operated dry sump system |
Apr. 7, 1992 |
| 5078233 |
Oil supply system for machines such as internal combustion engines |
Jan. 7, 1992 |
| 5056622 |
Oil level regulator |
Oct. 15, 1991 |
| 4989560 |
Automotive engine oil level surveillance system |
Feb. 5, 1991 |
| 4976235 |
Apparatus and method to control extraction of lubricating oil |
Dec. 11, 1990 |
| 4921071 |
Marine stern drive with improved fluid inspection reservoir |
May. 1, 1990 |
| 4913108 |
Separate lubricating system of engines |
Apr. 3, 1990 |
| 4895219 |
Fill valve for liquid containing device |
Jan. 23, 1990 |
| 4895222 |
Constant level oiler |
Jan. 23, 1990 |
| 4895498 |
Crank case chamber |
Jan. 23, 1990 |
| 4883148 |
Fill valve for liquid containing device |
Nov. 28, 1989 |
| 4869346 |
Automatic crankcase oil change and makeup system |
Sep. 26, 1989 |
| 4822259 |
System of compressing miscible fluids |
Apr. 18, 1989 |
| 4793440 |
Liquid lubricant sump level management system |
Dec. 27, 1988 |
| 4741304 |
Electronic engine oil dispenser |
May. 3, 1988 |
| 4724926 |
Oil dispenser for internal combustion engines |
Feb. 16, 1988 |
| RE32593 |
Separate lubricating system for marine propulsion device |
Feb. 9, 1988 |
| 4632080 |
Oil addition apparatus |
Dec. 30, 1986 |
| 4603666 |
Device for maintaining a constant oil level |
Aug. 5, 1986 |
| 4589524 |
Overfill valve |
May. 20, 1986 |
| 4572120 |
Separate lubricating system for marine propulsion device |
Feb. 25, 1986 |
| 4564500 |
Oil pot for reactor coolant pump motor and apparatus for controlling the oil level therein |
Jan. 14, 1986 |
| 4563988 |
Apparatus for determining the filling quantity of lubricating oils in drive installations |
Jan. 14, 1986 |
| 4529061 |
Fluid level control system |
Jul. 16, 1985 |
| 4522167 |
Lubricating oil monitor |
Jun. 11, 1985 |
| 4495909 |
Oil cleaning and recycling system |
Jan. 29, 1985 |
| 4491103 |
Automatic engine oil level maintenance system |
Jan. 1, 1985 |
| 4480718 |
Engine lubricating oil level regulator and replenish oil warning system |
Nov. 6, 1984 |
| 4420064 |
Means for lubricating radial shaft sealing rings in grinding rolls |
Dec. 13, 1983 |
| 4400123 |
Nut and thread protector |
Aug. 23, 1983 |
| 4342376 |
Adjustable constant level oiler and tool for making adjustments |
Aug. 3, 1982 |
| 4299307 |
Oil level indicating and refilling device |
Nov. 10, 1981 |
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