Bi-polar triac short detection and safety circuit

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10536991
APP PUB NO 20160037582A1
SERIAL NO

14775929

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Disclosed is a safety circuit for disrupting power to a heating element of an appliance to be powered through a solid state switch (Q1), typically a triac, from an AC power source (V1) having a positive half cycle and a negative half cycle for delivering power. A low resistance condition is sensed by detecting either the current through, or voltage across, the solid state switch during the positive half cycle and the negative half cycle of the AC power line, when the solid state AC switch is not actuated. A fault signal is generated to interrupt power to the heating element, preferably by a crowbar circuit opening a fuse, whenever the low resistance condition is detected.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • MULTITECH MEDICAL DEVICES USA LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Novikov, Lenny Cliffside Park, US 4 54
Weiss, John William Oakdale, US 3 4

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Jul 14, 2027
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 14, 2031
Fee Large entity fee small entity fee micro entity fee
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