Interference-suppressed universal motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 3, 2006
Grant Date -
Aug 11, 2005
app pub date -
Feb 8, 2005
filing date -
Feb 9, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A universal motor having two carbon brushes (2a, 2b) and two series connected field coils (4a, 4b). The universal motor having an interference suppressing capacitor (5) with a first terminal (6a) connected directly to the first carbon brush (2a) and connected with a field coil (4a) in a conducting manner. The interference suppressing capacitor (5) also including a second terminal (6b) connected directly to the second carbon brush (2b) and connected to a power line (8b) in a conducting manner.
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 | |
---|---|---|
HILTI AKTIENGESELLSCHAFT | 9494 SCHAAN |
International Classification(s)

- 2005 Application Filing Year
- H02K Class
- 1166 Applications Filed
- 631 Patents Issued To-Date
- 54.12 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hunger, Josef | Olching, DE | 9 | 151 |
# of filed Patents : 9 Total Citations : 151 | |||
Reiner, Michael | Untermeitingen, DE | 12 | 392 |
# of filed Patents : 12 Total Citations : 392 | |||
Schuster, Hermann | Geltendorf, DE | 7 | 31 |
# of filed Patents : 7 Total Citations : 31 |
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Patent Citation Ranking
- 3 Citation Count
- H02K Class
- 2.23 % this patent is cited more than
- 19 Age
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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 11, 2022 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Apr 11, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 06, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 06, 2022 |
Oct 25, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Sep 18, 2018 | CC | CERTIFICATE OF CORRECTION | |
Mar 06, 2018 | I | Issuance | |
Feb 14, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 02, 2017 | P | Published | |
Feb 13, 2017 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KNOBLACH, GERALD M.;FRISCHE, ERIC;BARKLEY, BRUCE ALAN;SIGNING DATES FROM 20140630 TO 20140702;REEL/FRAME:041242/0391 Owner name: SPACE DATA CORPORATION, ARIZONA |
Nov 14, 2016 | F | Filing |

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