Frederick Roberto resumes & CV records
Resumes
Frederick Roberto
Location:
United States
Frederick J Roberto, 81613 Hillcrest Dr, Emporium, PA 15834
Frederick Roberto Phones & Addresses
613 Hillcrest Dr, Emporium, PA 15834 814-4862083
Weedville, PA
Penfield, PA
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Frederick J Roberto
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Publications & IP owners
Us Patents
Brazing Slurry
US Patent:
4179297, Dec 18, 1979
Filed:
Oct 26, 1978
Appl. No.:
5/955087
Inventors:
William E. Buescher - Seneca Falls NY
Frederick J. Roberto - Emporium PA
Isabelle M. Sobierajski - St. Marys PA
Frederick J. Roberto - Emporium PA
Isabelle M. Sobierajski - St. Marys PA
Assignee:
GTE Sylvania Incorporated - Stamford CT
International Classification:
C23C 112
B23K 3534
B23K 3534
US Classification:
106 112
Abstract:
A composition for a brazing slurry which will form solid connections below 1600. degree. C. The composition comprises, by weight, about 15% to 16. 5% fine particle tungsten; about 5% to 6% calcium oxide; about 4% to 5% silicon dioxide; about 6% to 7% aluminum oxide; and about 67% to 70% of an organic binder. The composition is well suited to attaching leads to metallized patterns formed on ceramic substrate and can also be employed as the pattern forming material. When employed in electron discharge devices as a means of forming cathode and/or heater configurations, and for attaching leads thereto, the material is resistant to heater-cathode leakage.
Brazing Slurry
US Patent:
4191577, Mar 4, 1980
Filed:
Oct 26, 1978
Appl. No.:
5/955088
Inventors:
William E. Buescher - Seneca Falls NY
Frederick J. Roberto - Emporium PA
Isabelle M. Sobierajski - St. Marys PA
Frederick J. Roberto - Emporium PA
Isabelle M. Sobierajski - St. Marys PA
Assignee:
GTE Sylvania Incorporated - Stamford CT
International Classification:
C23C 112
B23K 3534
B23K 3534
US Classification:
106 112
Abstract:
A composition for a brazing slurry which will form solid connections below 1600. degree. C. The composition comprises, by weight, about 21% to 22% fine particle tungsten; about 7% to 8% calcium oxide; about 5% to 6% silicon dioxide; about 5% to 6% titanium dioxide; about 3% to 4% aluminum oxide; and about 55. 5 % to 57. 5 % of an organic binder. The composition is well suited to attaching leads to metallized patterns formed on ceramic substrate and can also be employed as the pattern forming material.
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