S. C. Johnson Son, Inc.

The Procter Gamble Company

Kendal William Kerr

Robert S Dirksing

James Douglas Still

Charles Winston Saunders

Todd Laurence Underiner

Pedro Antonio Rodriguez

David Burton Moore

Lowen Robert Morrison

Peter Blenkiron

Marcia Mary Ketcha

John Patrick Herlinger

Dennis Allen Beckholt

Fernando Benvegnu

Andrew Wilson

Faiz Feisal Sherman

Vladimir Gartstein

Herman William Meyer

Jim Allen McCurdy

Methods and devices for repelling insects are disclosed. The methods and devices provide personal protection from insect bites and insect landings, particularly mosquito bites. The methods and devices employ insect repellents such as pyrethroids at low (parts per billion) levels. The methods and devices effectively minimize the number of mosquitoes landing on a subject properly using the devices.

Methods and personal protection devices for repelling insects

A directional coupler sensor is provided for measuring the moisture content of a substrate, such as hair. The sensor incorporates a high frequency directional coupler having a pair of generally parallel plates defining a coupling gap therebetween. A high frequency signal generator generates an electromagnetic field across the gap with the substrate placed across the coupling gap. The coupled power relates to the moisture content of the substrate. A pressure sensor is provided to ensure that the desired compactness of the substrate across the coupling gap is achieved to obtain accurate, reliable and consistent results.

Directional coupler sensor

Growing community of inventors

Okeana, OH, United States of America

Kendal William Kerr