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Robert Carl Witham
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Arkadelphia, AR, US
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Patents Grants
last 30 patents
Information
Patent Grant
Scroll compressor with flow restriction and back pressure chamber tap
Patent number
6,896,499
Issue date
May 24, 2005
Scroll Technologies
Robert Carl Witham
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor with flow restriction and back pressure chamber tap
Patent number
6,761,545
Issue date
Jul 13, 2004
Scroll Technologies
Robert Carl Witham
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Check valve retainer for a scroll compressor
Patent number
6,749,412
Issue date
Jun 15, 2004
Scroll Technologies
Sudarshan K. Narasipura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Press-on insulator dish
Patent number
6,592,344
Issue date
Jul 15, 2003
Scroll Technologies
Robert Carl Witham
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor with motor protector in non-orbiting scroll and f...
Patent number
6,491,500
Issue date
Dec 10, 2002
Scroll Technologies
Zili Sun
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Motor protector in pocket on non-orbiting scroll and routing of wir...
Patent number
6,454,538
Issue date
Sep 24, 2002
Scroll Technologies
Robert Carl Witham
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Heat shield with seal between end cap and non-orbiting scroll
Patent number
6,428,293
Issue date
Aug 6, 2002
Scroll Technologies
Todd W. Dewar
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Oil supply cross-hole in orbiting scroll member
Patent number
6,422,843
Issue date
Jul 23, 2002
Scroll Technologies
Zili Sun
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
Information
Patent Application
Scroll compressor with flow restriction and back pressure chamber tap
Publication number
20040241028
Publication date
Dec 2, 2004
Robert Carl Witham
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
SCROLL COMPRESSOR WITH FLOW RESTRICTION AND BACK PRESSURE CHAMBER TAP
Publication number
20040126260
Publication date
Jul 1, 2004
Robert Carl Witham
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Check valve retainer for a scroll compressor
Publication number
20040022658
Publication date
Feb 5, 2004
Sudarshan K. Narasipura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
PRESS-ON INSULATOR DISH
Publication number
20030099564
Publication date
May 29, 2003
Robert Carl Witham
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
OIL SUPPLY CROSS-HOLE IN ORBITING SCROLL MEMBER
Publication number
20020110471
Publication date
Aug 15, 2002
Scroll Technologies
Zili Sun
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...