Lauren D. Sperry

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Blue Springs, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable clearance system for reciprocating compressors
- Patent number 6,607,366
- Issue date Aug 19, 2003
- Gas and Air Specialty Products, Inc.
- Lauren D. Sperry
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Variable clearance system for reciprocating compressors
- Patent number 6,361,288
- Issue date Mar 26, 2002
- Gas & Air Specialty Products
- Lauren D. Sperry
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Synchronized unloader system and method for a gas compressor
- Patent number 5,695,325
- Issue date Dec 9, 1997
- Lauren D. Sperry
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Radial valve with unloader assembly for gas compressor
- Patent number 5,331,998
- Issue date Jul 26, 1994
- Lauren D. Sperry
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Valve assembly
- Patent number 4,737,080
- Issue date Apr 12, 1988
- Ball Valve Company
- Herbert B. Owsley
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Variable clearance system for reciprocating compressors
- Publication number 20020141884
- Publication date Oct 3, 2002
- Gas & Air Specialty Products, Inc.
- Lauren D. Sperry
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...