Corona resistant lead and terminal assembly

• US 3,328,744 A
• Filed: 12/14/1964
• Issued: 06/27/1967
• Est. Priority Date: 12/14/1964
• Status: Expired due to Term

• Current Assignee: Jay Fiske John
• Original Assignee: Jay Fiske John
• Inventors: JAY FISKE JOHN
• Application Number:
  US04/418,017
• Time in Patent Office: 925 Days
• US Class Current: 439/281
• CPC Class Codes: H01R 13/5025 one or more pieces being of resilient material
• CPC Class Codes: H01R 13/53 Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing
• CPC Class Codes: H01R 25/14 Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length supporting elements for lighting devices, displaceable along guiding elements and making electrical contact with conductors running along the guiding elements F21V21/35

Claims

1. IN A LEAD ASSEMBLY FOR PROVIDING A CORONA-RESISTANT UNION OF HIGH VOLTAGE CIRCUITS, A RECEPTACLE HAVING A BORE TAPERING OUTWARDLY AT A GIVEN ANGLE WITH RESPECT TO THE CENTER AXIS THEREOF AND HAVING A FIRST CONTACT MEMBER THEREIN AND A PLUG MEMBER HAVING A PROJECTING PORTION OF RESILIENT MATERIAL TAPERING INWARDLY AT AN ANGLE WITH RESPECT TO THE CENTER AXIS THEREOF LESS THAN SAID GIVEN ANGLE AND HAVING A SECOND CONTACT MEMBER THEREIN, SAID PLUG MEMBER BEING ADAPTED TO BE FITTED WITHIN SAID RECEPTACLE WITH SAID CONTACT MEMBERS IN ENGAGEMENT, A CONDUCTIVE LEAD HAVING A RELATIVELY THICK OUTER SHEATH OF DIELECTRIC AND INSULATING MATERIAL AND AN INNER CORE OF CONDUCTIVE MATERIAL, SAID CORE BEING CONNECTED TO SAID SECOND CONTACT MEMBER, SAID PLUG MEMBER FORWARD PORTION BEING OF RELATIVELY COMPRESSIBLE DIELECTRIC MATERIAL EXTENDING ENTIRELY OVER SAID SECOND CONTACT MEMBER EXCEPT AT THE ENDS THEREOF AND EXTENDING OVER A PORTION OF SAID SHEATH, SAID PLUG MEMBER HAVING A REARWARD PORTION INCLUDING A FERRULE OF RELATIVELY HARD DIELECTRIC MATERIAL FITTED OVER AND BONDED TO SAID SHEATH AND INCLUDING A PROJECTING FLANGE PORTION AT THE FORWARD END THEREOF, A PLUG SECURING MEMBER HAVING AN APERTURE THEREIN TO SLIDINGLY FIT OVER A PORTION OF SAID FERRULE AND TO ENGAGE THE FLANGE PORTION THEREOF, SAID SECURING MEMBER INCLUDING A BORE LARGER THAN SAID PLUG MEMBER AND MEANS TO ENGAGE SAID RECEPTACLE AND DRIVE AND HOLD SAID PLUG MEMBER THEREIN BY AN ENGAGEMENT OF SAID SECURING MEMBER BEARING AGAINST THE FLANGE PORTION OF THE FERRULE TO IN TURN AXIALLY FORCE THE PLUG MEMBER FORWARD PORTION INTO SAID RECEPTACLE TO EFFECT A PROGRESSIVE COMPRESSION OF SAID FORWARD PORTION OPERATING TO PROGRESSIVELY CLOSE THE SPACE DEFINED BY THE DIFFERENTIAL TAPER BETWEEN SAID PLUG MEMBER AND SAID RECEPTACLE FROM THE FORWARD END OF THE FORWARD PORTION OF THE PLUG MEMBER UPWARDLY IN THE BORE OF SAID RECEPTACLE.