RF shielded blank for coaxial connector

• US 4,131,332 A
• Filed: 08/23/1977
• Issued: 12/26/1978
• Est. Priority Date: 01/12/1977
• Status: Expired due to Term

• Current Assignee: AMP Limited
• Original Assignee: AMP Limited
• Inventors: Hogendobler, Richard S., Murray, Robert M.
• Primary Examiner(s): Abrams, Neil
• Application Number:
  US05/827,193
• Time in Patent Office: 490 Days
• Field of Search: 339/177 R, 339/177 E, 339/143 R, 339/143 C, 339/143 S, 339/143 T, 339/89 C, 339/90 C, 174/89
• US Class Current: 439/585
• CPC Class Codes: H01R 43/16 for manufacturing contact members, e.g. by punching and by bending
• CPC Class Codes: H01R 9/0518 Connection to outer conductor by crimping or by crimping ferrule
• CPC Class Codes: Y10T 29/49218 with deforming
• CPC Class Codes: Y10T 29/49799 Providing transitory integral holding or handling portion

Abstract

The disclosure relates to an assembly of stamped and formed parts for a coaxial connector with RF shielding ensured by a unitary ferrule intimately surrounding open seams in the stamped and formed parts. Also the disclosure relates to a blank which may be formed into a coaxial connector part having large diametrical transitions which ordinarily introduce RF attenuation but for the intimately surrounding unitary ferrule.

Claims

1. In a coaxial connector having a center contact, a sleeve form connector body connected respectively to a center conductor and to an outer conductive sheath of a coaxial cable and a ferrule concentrically received over said sheath and said connector body, the improvement comprising:

said connector body being stamped and formed from a single metal blank and being characterized by a smaller diameter sleeve form section and a larger diameter sleeve form section integrally joined by a transition of frustoconical section, said connector body having a longitudinal seam entirely the length thereof and at least one additional slit in said frustoconical transition,

said ferrule being unitary and seamless and radially crimpable,

said unitary ferrule at least partially covering said larger diameter sleeve form section,

said unitary ferrule being radially crimped over said cable sheath and said smaller diameter sleeve form section, and

said unitary ferrule intimately encircling and engaging said frustoconical section, thereby spanning across each said slit and spanning across a portion of said seam which runs through said frustoconical section to eliminate signal attenuation and shielding leakage.

2. The structure as recited in claim 1, wherein, said improvement further includes:

a stamped and formed projecting lip on said larger diameter sleeve form section, and

an internally threaded coupling ring freely rotatably received over said larger diameter sleeve form section and captivated in a space defined between said lip and said unitary ferrule.