Coolant flow enhancing device for stator coil end turns of fluid cooled electric motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 12, 2013
Grant Date -
Jul 12, 2012
app pub date -
Jan 12, 2011
filing date -
Jan 12, 2011
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A coolant flow enhancing device is provided to increase electric machine coil cooling at coil end turn locations. Such a device is incorporated into an overall fluid cooled electric machine that has phase separators extending through slots between stator teeth. The device includes flow deflectors located at ends of the phase separators. Each of the flow deflectors is designed so that a contour of its interior surface follows an outer contour of a corresponding one of the end turns to both maximize a cooling fluid flow rate past the one of the end turns and minimize separation of the fluid from the one of the end turns.
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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KOLLMORGEN CORPORATION | 201 WEST ROCK ROAD RADFORD VA 24141 |
International Classification(s)

- 2011 Application Filing Year
- H02K Class
- 1745 Applications Filed
- 1369 Patents Issued To-Date
- 78.46 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Beatty, Reinhard | Blacksburg, US | 5 | 52 |
# of filed Patents : 5 Total Citations : 52 | |||
Hovey, Ian | Christiansburg, US | 6 | 73 |
# of filed Patents : 6 Total Citations : 73 |
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Patent Citation Ranking
- 3 Citation Count
- H02K Class
- 3.92 % this patent is cited more than
- 12 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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May 12, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Feb 27, 2018 | CC | CERTIFICATE OF CORRECTION | |
Nov 28, 2017 | I | Issuance | |
Nov 08, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jul 29, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EB ASSOCIATES;REEL/FRAME:030914/0323 Owner name: WEYERHAEUSER NR COMPANY, WASHINGTON Effective Date: Jul 29, 2013 |
May 01, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BARKER, EARL;REEL/FRAME:030337/0098 Owner name: EB ASSOCIATES, INC., WASHINGTON Effective Date: May 01, 2013 |
Sep 13, 2012 | P | Published | |
Mar 06, 2012 | F | Filing | |
Dec 03, 2010 | PD | Priority Date |

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