Method of controlling rotational speed of impeller

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9602042
APP PUB NO 20130333521A1
SERIAL NO

13816186

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A load current value I of a motor rotationally driving an impeller is read out when the impeller is rotated at a predetermined set rotational speed X0, and the rotational speed of the impeller is increased so that the load current value I becomes equal to or larger than a threshold value I0 when it is determined that the load current value I is smaller than the predetermined threshold value I0.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL STAINLESS STEEL CORPORATION8-2 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1000005 ?1000005

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sugimura, Masayuki Yamaguchi, JP 1 2
Tada, Shintarou Yamaguchi, JP 2 2

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 21, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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