Oilers rotary scroll air compressor axial loading support for orbiting member
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 16, 2001
Grant Date -
N/A
app pub date -
May 31, 2000
filing date -
May 31, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An axial load resistant anti-rotation bearing for a rotary scroll compressor is disclosed. The rotary scroll compressor includes stationary and orbiting scroll elements and a drive mechanism for driving the orbiting scroll element in an orbit about the stationary scroll element. The stationary and orbiting scroll elements are intermeshed and nested to form at least one spiraling compression pocket therebetween. The at least one compression pocket generates forces which tend to force the stationary and orbiting scroll elements apart in a direction parallel to their central axes. The axial load resistant anti-rotation bearing disclosed resists such axial separating forces and employs two rotational bearing components, a first rotational bearing component mounted on the interior of the compressor housing and a second rotational bearing component mounted on the orbiting scroll element. At least one, and preferably both, of the rotational bearing components are designed such that they include a bearing surface which projects a nonzero component in the direction of the central axes of the stationary and orbiting scroll elements. At least one, and preferably both, of the rotational bearing components are of the angular contact bearing type.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP | 30 ISABELLA STREET PITTSBURGH PA 15212 |
International Classification(s)

- 2000 Application Filing Year
- F03C Class
- 57 Applications Filed
- 24 Patents Issued To-Date
- 42.11 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Jones, Charlie E | Greenville, SC | 9 | 127 |
# of filed Patents : 9 Total Citations : 127 | |||
Kazakis, Michael V | Simpsonville, SC | 25 | 405 |
# of filed Patents : 25 Total Citations : 405 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 7 Citation Count
- F03C Class
- 0 % this patent is cited more than
- 24 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 |
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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 |
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Apr 19, 2006 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Apr 24, 2002 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Apr 24, 1998 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 05, 1997 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Nov 22, 1994 | I | Issuance | |
Aug 27, 1993 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BECKER, WILLI;REEL/FRAME:007118/0437 Owner name: HEIDELBERGER DRUCKMASCHINEN AG, GERMANY Effective Date: Aug 27, 1993 |
Jul 15, 1993 | F | Filing | |
Jul 15, 1993 | STPP | INFORMATION ON STATUS: PATENT APPLICATION AND GRANTING PROCEDURE IN GENERAL | free format text: APPLICATION UNDERGOING PREEXAM PROCESSING |
Jul 15, 1992 | PD | Priority Date |

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