Ordnance – Accelerating
Patent
1994-04-26
1995-11-07
Bentley, Stephen C.
Ordnance
Accelerating
89 2805, F41B 600
Patent
active
054639280
ABSTRACT:
An electrical power feed assembly (12) for supplying high current to an electrothermal gun has first and second electrical connectors (38) and (42) with associated contact portions (40) and (44) for engaging and plastically deforming first and second side contacts (20,22) on a cartridge (14) to provide firing while maintaining the electrical contact without any arcing. The first connector (38) has a curved contact portion (40) that provides an interference fit to plastically deform the first contact (20) and establish the electrical contact as the cartridge (14) is inserted into the gun. The second connector (42) has a pair of curved knife edges (48) that engage and plastically deform the second contact (22) of the cartridge to establish and maintain the electrical contact under spring action of the second connector and by operation of a cam mechanism (50) of a breech block (26) of the gun. The cartridge (14) has its first and second contacts (20,22) made of a relatively soft material, copper and solder preferably, and has the contacts provided with annular shapes that are engaged by the contact portions (40,44) of the first and second connectors (38,42).
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Boggavarapu Rao L.
Goldstein Yeshayahu S. A.
Keogh Catherine M.
Suchocki Anthony J.
Widner Melvin M.
Bentley Stephen C.
General Dynamics Land Systems Inc.
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