Coupling mechanism for wind turbine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 18, 1986
Grant Date -
N/A
app pub date -
Jul 9, 1984
filing date -
Jun 8, 1984
priority date (Note) -
Expired
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A mechanism is provided for connecting the output shaft of a wind turbine with a load rod, such as the rod of a downhole pump. The mechanism includes a drive train which converts the rotating output of the shaft to a variable amplitude reciprocating output having a frequency varying with the speed of the shaft. A control assembly adjusts the drive train to maintain the amplitude of the reciprocating output proportional with the square of the wind velocity.
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 | |
---|---|---|
ANADA T5K 2C9 | Not Provided |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kentfield, John A C | Calgary, CA | 2 | 8 |
# of filed Patents : 2 Total Citations : 8 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 6 Citation Count
- F04B Class
- 0 % this patent is cited more than
- 39 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
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 |
---|---|---|---|
Jan 09, 2017 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Dec 14, 2016 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Dec 14, 2016 |
Dec 14, 2016 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jul 22, 2016 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Mar 23, 2012 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Jun 12, 2008 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 14, 2004 | I | Issuance | |
Apr 24, 2003 | P | Published | |
Nov 22, 2002 | F | Filing | |
Apr 07, 1999 | PD | Priority Date |

Matter Detail

Renewals Detail
