Double-shielded electric cable

• US 3,340,353 A
• Filed: 01/28/1966
• Issued: 09/05/1967
• Est. Priority Date: 01/28/1966
• Status: Expired due to Term

• Current Assignee: Raymond C. Mildner
• Original Assignee: Raymond C. Mildner
• Inventors: Mildner, Raymond C.
• Application Number:
  US04/523,624
• Time in Patent Office: 585 Days
• US Class Current: 174/106.00R
• CPC Class Codes: H01B 7/202 Longitudinal lapped metal tubes
• CPC Class Codes: H01B 7/208 composed of composite laminated metals
• CPC Class Codes: H01B 7/2806 Protection against damage caused by corrosion
• CPC Class Codes: H01B 7/2825 using a water impermeable sheath
• CPC Class Codes: H01B 9/022 composed of longitudinal lapped tape-conductors
• CPC Class Codes: H01B 9/023 composed of helicoidally wound tape-conductors

Claims

1. AN ELECTRIC CABLE HAVING AN IMPROVED METALLIC SHIELD CONSTRUCTION WHICH COMPRISES (1) A CABLE CORE OF AT LEAST ONE INSULATED METALLIC CONDUCTOR (2) A FIRST METALLIC SHIELD SURROUNDING THE CABLE CORE, (3) A SECOND METALLIC SHIELD SURROUNDING THE FIRST METALLIC SHIELD, SAID SECOND SHIELD HAVING A THICKNESS OF LESS THAN ONE-HALF THE THICKNESS OF THE FIRST METALLIC SHIELD, THERE BEING AN ABSENCE OF BONDING BETWEEN SAID FIRST AND SECOND METALLIC SHIELDS AND (4) AN OUTER JACKET OF A THERMOPLASTIC MATERIAL SURROUNDING THE SECOND SHIELD, THE SECOND SHIELD BEING FIRMLY AND ADHESIVELY BONDED TO THE OUTER JACKET.