Patents by Inventor John P. Casamento

John P. Casamento has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electric field shielding system for AC electrically powered device with a two-blade plug
    Patent number: 5465013
    Abstract: An electric field shield for non-grounded AC powered appliances is connected to a neutral return terminal of the AC power distribution system. A polarized two prong connector assures connection of the shield to neutral. By eliminating a requirement for connection of the shield to ground, shields are made available for appliances precluded from ground connection such as bedding heaters. A double pole control switch is included to eliminate E-field generation in an OFF state caused by improper wiring or the use of unpolarized intermediate connectors. The shield is insulated and a current limiting device is series connected between the shield and neutral to reduce electrical hazards.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: November 7, 1995
    Assignee: The Government of the United States of America as represented by the Secretary of the Department of Health and Human Services
    Inventors: Howard I. Bassen, John P. Casamento