Compressor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 19, 2008
Grant Date -
Jan 20, 2005
app pub date -
Jul 14, 2004
filing date -
Jul 16, 2003
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
In a compressor for gaseous media, in particular, refrigerants, comprising a housing, a drive shaft mounted in the housing, at least one compressor unit arranged in the housing and driven by the drive shaft, and an oil lubricating device for supplying bearing areas of the drive shaft with lubricating oil, in order to solve the problem that the compressor should be shut down when the oil supply of the oil lubricating device fails, it is proposed that the oil lubricating device comprise a lubricating oil reservoir lying above an oil sump in the housing and fillable from the oil sump by a lubricating oil conveying device, that the oil lubricating device comprise a lubricating oil duct system extending through the drive shaft for taking up lubricating oil from the lubricating oil reservoir via an inlet disposed on the drive shaft and conducting it to the bearing areas, and that a lubricating oil monitoring device be provided for detecting by means of a sensor associated with the lubricating oil reservoir the presence of lubricating oil in the lubricating oil reservoir and switching off the compressor when there is a shortage of lubricating oil.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
BITZER KUEHLMASCHINENBAU GMBH | PETER-SCHAUFLER-PLATZ 1 SINDELFINGEN 71065 |
International Classification(s)

- 2004 Application Filing Year
- F04B Class
- 784 Applications Filed
- 292 Patents Issued To-Date
- 37.25 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Barowsky, Helmut | Bergfelde, DE | 4 | 126 |
# of filed Patents : 4 Total Citations : 126 | |||
Ullrich, Wolfgang | Halle, DE | 9 | 87 |
# of filed Patents : 9 Total Citations : 87 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- F04B Class
- 3.58 % this patent is cited more than
- 17 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Aug 18, 2011 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Sep 06, 2007 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Feb 14, 2004 | SULP | SURCHARGE FOR LATE PAYMENT | |
Feb 14, 2004 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Nov 13, 2003 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ORACLE CORPORATION;REEL/FRAME:014725/0175 Owner name: ORACLE INTERNATIONAL CORPORATION, CALIFORNIA Effective Date: Nov 13, 2003 |
Oct 02, 2003 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Mar 14, 2000 | I | Issuance | |
Mar 02, 2000 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
May 21, 1997 | F | Filing | |
May 21, 1997 | PD | Priority Date | |
May 15, 1997 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WICAL, KELLY;REEL/FRAME:008581/0718 Owner name: ORACLE CORPORATION, CALIFORNIA Effective Date: May 15, 1997 |

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