Scroll type compressor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 27, 2001
Grant Date -
N/A
app pub date -
Jun 9, 1999
filing date -
Jun 12, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a scroll type compressor, the center and outer periphery portions of the spiral elements are provided with relief for preventing the mutual contact of the spiral elements. Both of the spiral elements come to contact with each other at the intermediate portion thereof. The relief at the center portion is formed within the range defined by the winding angle Y=32(X-1) where X is the winding turn of each of the spiral elements. The range of the intermediate portion is 380.degree.. This construction serves to prevent the excessive pressure increase of the operation chamber at the center portion so that the brake down of the spiral elements may be prevented without lowering the efficiency of the compressor.
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 | |
---|---|---|
DENSO CORPORATION | KARIYA-CITY AICHI-PREF 448-8661 |
International Classification(s)

- 1999 Application Filing Year
- F01K Class
- 56 Applications Filed
- 13 Patents Issued To-Date
- 23.22 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kamiya, Haruo | Chiryu, JP | 18 | 164 |
# of filed Patents : 18 Total Citations : 164 | |||
Sakurai, Yusuke | Nagoya, JP | 24 | 45 |
# of filed Patents : 24 Total Citations : 45 | |||
Sato, Kimihiko | Chiryu, JP | 59 | 653 |
# of filed Patents : 59 Total Citations : 653 | |||
Takemoto, Tsuyoshi | Nukata-gun, JP | 33 | 287 |
# of filed Patents : 33 Total Citations : 287 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 3 Citation Count
- F01K 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 |
---|---|---|---|
Aug 01, 2012 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Aug 20, 2008 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Jul 21, 2004 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Feb 27, 2001 | I | Issuance | |
Feb 09, 2001 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jun 09, 1999 | F | Filing | |
May 24, 1999 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAMIYA, HARUO;SAKURAI, YUSUKE;TAKEMOTO, TSUYOSHI;AND OTHERS;REEL/FRAME:010036/0925 Owner name: DENSO CORPORATION, JAPAN Effective Date: May 24, 1999 |
Jun 12, 1998 | PD | Priority Date |

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