Robert D. Douglas

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Bristol, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Crankshaft, compressor using crankshaft, and method for assembling...
- Patent number 6,684,755
- Issue date Feb 3, 2004
- Bristol Compressors, Inc.
- Gordon T. Boyd
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Compressors for providing automatic capacity modulation and heat ex...
- Patent number 6,663,358
- Issue date Dec 16, 2003
- Bristol Compressors, Inc.
- Joe Frank Loprete
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Gas compressor construction and assembly
- Patent number 5,326,231
- Issue date Jul 5, 1994
- Bristol Compressors
- Prakash N. Pandeya
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Gas compressor head and discharge valve construction
- Patent number 5,203,857
- Issue date Apr 20, 1993
- Bristol Compressors, Inc.
- Gerald L. Terwilliger
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Gas compressor head and discharge valve construction
- Patent number 5,080,130
- Issue date Jan 14, 1992
- Bristol Compressors, Inc.
- Gerald L. Terwilliger
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Crankshaft, compressor using crankshaft, and method for assembling...
- Publication number 20030140780
- Publication date Jul 31, 2003
- Bristol Compressors, Inc.
- Gordon T. Boyd
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Compressors for providing automatic capacity modulation and heat ex...
- Publication number 20020187057
- Publication date Dec 12, 2002
- Joe Frank Loprete
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...