Scott Sieger8618 Royal Estates Way, Fair Oaks, CA 95628
Scott Sieger Phones & Addresses
8618 Royal Estates Way, Fair Oaks, CA 95628 (916) 966-8776
8618 Royal Estates Way, Fair Oaks, CA 95628
Work
Position:
Healthcare Support Occupations
Education
Degree:
High school graduate or higher
Mentions for Scott Sieger
Publications & IP owners
Us Patents
Plasma Torch Electrode
US Patent:
5455401, Oct 3, 1995
Filed:
Oct 12, 1994
Appl. No.:
8/321707
Inventors:
Debbie A. Dumais - Loomis CA
Brad J. Anderson - Cameron Park CA
Scott N. Sieger - Fair Oaks CA
Brad J. Anderson - Cameron Park CA
Scott N. Sieger - Fair Oaks CA
Assignee:
Aerojet General Corporation - Rancho Cardova CA
International Classification:
B23K 1000
US Classification:
21912152
Abstract:
An electrode for a plasma torch comprises multiple platelets that are stacked together. The platelets have openings that are oriented to form a bore through the electrode adapted for generating a plasma arc. The platelets also have apertures arranged to form multiple coolant channels through the electrode. The coolant channels are immediately adjacent to the bore and extend substantially along the entire length of the bore. This increases the heat transfer area between liquid coolant flowing through the channels and the hot plasma arc within the bore to reduce the temperature of the exposed electrode surface, thereby increasing the lifetime of the electrode. A second set of passages can exist within the electrode to inject gas through the electrode wall at the surface of the bore. This secondary gas injection is directed tangential to the bore surface to create or enhanced gas swirl, thereby rotating the arc foot and eliminating or reducing arc attachment induced erosion damage.
Plasma Torch Electrode
US Patent:
5620616, Apr 15, 1997
Filed:
Jul 27, 1995
Appl. No.:
8/508092
Inventors:
Brad J. Anderson - Cameron Park CA
Scott N. Sieger - Fair Oaks CA
Scott N. Sieger - Fair Oaks CA
Assignee:
Aerojet General Corporation - Rancho Cordova CA
International Classification:
B23K 1000
US Classification:
21912152
Abstract:
A plasma torch electrode (132) comprises multiple platelets (159) oriented transverse to the electrode axis and joined together to form an electrical connection therebetween. A first group of the platelets have openings aligned to form an axial bore (164) for generating a plasma arc. A second group of the platelets define channels (172,178) aligned with each other, transverse to the electrode axis and in communication with the bore for injecting a gas, such as an inert gas, into the bore. In a specific embodiment, the plasma torch electrode comprises first and second end plates (152, 154) and a midplate (160), with the platelets stacked between and joined to the end plates and the central plate. This configuration allows precise fabrication of gas channels within the first and second sets of platelets while only requiring a small number of separate components to manufacture the plasma torch electrode.
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