Resumes
Resumes
James Helmuth Phones & Addresses
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320 Topaz Pl, Arcadia, CA 91006 (626) 355-3181
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Pasadena, CA
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Temple City, CA
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San Clemente, CA
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San Juan Capistrano, CA
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San Gabriel, CA
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Los Angeles, CA
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320 Topaz Pl, Arcadia, CA 91006 (626) 664-5830
Work
Position:
Retired
Education
Degree:
Graduate or professional degree
Emails
Publications
Us Patents
Rapid Starting Of Gas Discharge Lamps
View pageUS Patent:
39448762, Mar 16, 1976
Filed:
Sep 30, 1974
Appl. No.:
5/510440
Inventors:
James G. Helmuth - Monrovia CA
Assignee:
Chadwick-Helmuth Company, Inc. - Monrovia CA
International Classification:
H05B 4116
H05B 4124
H05B 4124
US Classification:
315205
Abstract:
A starting device for a gas discharge lamp, to whose electrodes AC voltage is applied, comprises: A. first means electrically connected with at least one lamp electrode to apply to the lamp a transient voltage pulse which initially changes in amplitude in a polarity direction relatively in opposition to the polarity of the main voltage simultaneously supplied to the electrodes, B. said first means including circuitry to cause said pulse to thereafter change in amplitude in a polarity direction in aid of the polarity of the main voltage simultaneously supplied to the electrodes.
Rapid Starting Of Gas Discharge Lamps
View pageUS Patent:
RE314862, Jan 3, 1984
Filed:
May 20, 1982
Appl. No.:
6/380074
Inventors:
James G. Helmuth - Monrovia CA
Assignee:
Chadwick-Helmuth Company, Inc. - El Monte CA
International Classification:
H05B 4116
H05B 4124
H05B 4124
US Classification:
315205
Abstract:
A starting device for a gas discharge lamp, to whose electrodes AC voltage is applied, comprises: a. first means electrically connected with at least one lamp electrode to apply to the lamp a transient voltage pulse which initially changes in amplitude in a polarity direction relatively in opposition to the polarity of the main voltage simultaneously supplied to the electrodes, b. said first means including circuitry to cause said pulse to thereafter change in amplitude in a polarity direction in aid of the polarity of the main voltage simultaneously supplied to the electrodes.