Method of controlling a powered air purifying respirator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12017098
APP PUB NO 20230285778A1
SERIAL NO

18309211

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

There is provided a method of controlling a powered air purifying respirator blower system to deliver a substantially uniform volumetric airflow to a user, the system comprising a fan powered by a battery in communication with a variable speed electric motor, the variable speed electric motor is controlled by an electronic control unit for delivering a forced flow of air through at least one filter to a user, comprising the steps of: (a) determining an estimated system run time by summing a battery run time remaining and a system run time; and (b) altering a speed of the variable speed electric motor when the estimated system run time is equal to or less than a desired system run time.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYST PAUL MN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jensen, Douglas D Woodbury, US 19 90
Kilmer, Sean R Lino Lakes, US 11 71
Mclaughlin, Keith K Eagan, US 10 92
Murphy, Andrew Binchester Moor, GB 106 971

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
3.5 Year Payment $1600.00 $800.00 $400.00 Dec 25, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 25, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 25, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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