CHARLES R WEIDMAN
Broker in Chatham, MA
License number
Massachusetts 124256
Issued Date
May 1, 1980
Expiration Date
May 13, 1990
Type
Broker
Address
Address
Chatham, MA 02633
Professional information
Apparatus For Low Resistance Electric Heating Of Electrically Conductive Containers
US Patent:
5142115, Aug 25, 1992
Filed:
Nov 5, 1990
Appl. No.:
7/609289
Inventors:
Charles R. Weidman - Chatham MA
Joan C. Froehle - Chatham MA
Joan C. Froehle - Chatham MA
Assignee:
Kilo Alpha Co. - Chatham MA
International Classification:
H05B 610
US Classification:
219 10491
Abstract:
An apparatus for heating a fluid contained in an electrically conductive material container. The apparatus includes a stepdown transformer having a primary winding coupled to source of electric energy and a secondary winding that includes the container itself. In a first embodiment the secondary winding also comprises a substantially rigid electrically conductive member on which the transformer is mounted and electrical contacts at each end of the conductive member for connecting it with the container. In a second embodiment, two semicircular clamps, having articulated jaws, carry the current from the transformer. Such clamps are made to close around the upper and lower portion of the walls of a cylindrical can, completing a secondary winding in which a very high current flows in the walls of the container. In all cases the turns ratio of the transformer is sufficient to reduce the voltage in the secondary winding to a safe level. Illustratively, the turns ratio is at least 100 to 1.