Connector for HF coaxial cable

• US 4,421,377 A
• Filed: 09/23/1981
• Issued: 12/20/1983
• Est. Priority Date: 09/25/1980
• Status: Expired due to Fees

• Current Assignee: Georg Spinner
• Original Assignee: Georg Spinner
• Inventors: Spinner, Georg
• Primary Examiner(s): Desmond, Eugene F.
• Assistant Examiner(s): Pirlot, David
• Application Number:
  US06/304,821
• Time in Patent Office: 818 Days
• Field of Search: 339/177 R, 339/177 E, 339/143, 174/75 C, 174/88 C, 29/827, 29/857
• US Class Current: 439/583
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/40 specially adapted for high frequency
• CPC Class Codes: Y10T 29/49121 Beam lead frame or beam lead device

Abstract

A connector for a coaxial cable having a dielectric and an outer conductor supported by the dielectric comprises a bushing that can be emplaced between the dielectric and the outer conductor, a tension member that acts radially inward upon the outer conductor so that mechanical contact is made between the outer conductor and the outer surface of the bushing. The bushing has at least one axial slot. A cut leading edge of the outer conductor is inserted through the slot from the inner surface of the bushing after the bushing is placed over the outer conductor. The bushing and slot are configured so that the outer conductor passes through the slot and wraps around the bushing upon relative rotation of the bushing and the coaxial cable.

Claims

1. A connector for a coaxial cable which includes an inner conductor, a dielectric layer around the inner conductor and an outer conductor supported by the dielectric layer, the connector comprising:

a bushing for making mechanical contact with the outer conductor;

the bushing having an inner surface and an outer surface, and at least one slot extending axially along the bushing and passing between the inner surface and the outer surface;

the slot lying in a plane tangential to the inner surface of the bushing;

the bushing being emplaceable over the outer conductor, and the slot therein being for receiving a cut leading edge of the outer conductor, and the bushing and slot being configured so that a portion of the outer conductor having the cut leading end thereof received in the slot passes through the slot upon relative rotation of the bushing and the coaxial cable.

2. The connector of claim 1, comprising two of the slots, the slots lying in a common plane and extending in opposite directions from the inner surface of the bushing.

3. The connector of claim 1 in which the outer surface of the bushing comprises at least one external contour protrusion to make contact with the outer conductor of the coaxial cable.

4. The connector of claim 3 in which the external contour protrusion is a bead.

5. The connector of claim 3 in which the external contour protrusion is in the form of a self-tapping thread.

6. The connector of claim 1 in which the inside surface of the bushing comprises at least one internal contour protrusion that cuts into the dielectric.

7. The connector of claim 6 in which the internal contour protrusion is in the form of a self-tapping thread.

8. The connector of claim 6 in which the internal contour protrusion is formed as an annular rib.

9. The connector of claim 1, further comprising an elastic material stretchable over the bushing and the outer conductor when the outer conductor is disposed on the outer surface of the bushing.

10. The connector of claim 9 in which the elastic material conforms substantially to the shape of the bushing when stretched over the outer conductor.

11. The connector of claim 1 further comprising a tension member that acts radially inward upon the outer conductor, forcing it into contact with the bushing.

12. An assembly of a coaxial connector and a coaxial cable comprising:

an inner conductor of the coaxial cable;

a dielectric layer of the coaxial cable around the inner conductor;

an outer conductor of the coaxial cable supported by the dielectric,

the connector comprising;

a bushing for making mechanical contact with the outer conductor;

the bushing having an inner surface and an outer surface, and at least one slot extending axially along the bushing and passing between the inner surface and the outer surface;

the bushing being emplaceable over the outer conductor, and the slot therein being for receiving a cut leading edge of the outer conductor, and the bushing and slot being configured so that a portion of the outer conductor having the cut leading end thereof received in the slot from the inner surface of the bushing passes through the slot upon relative rotation of the bushing and the coaxial cable;

at least a portion of the outer conductor having the slit leading end extending through the slot and being disposed on the outer surface of the bushing.

13. The assembly of claim 12, further comprising an elastic material stretchable over the bushing and the outer conductor when at least the portion of the outer conductor is disposed on the outer surface of the bushing.

14. The assembly of claim 12, further comprising a tension member that acts radially inward upon the portion of the outer conductor, forcing it into contact with the bushing.

15. A process for assembly of a coaxial cable which includes an inner conductor, a dielectric layer around the inner conductor and an outer conductor supported by the dielectric layer and a bushing having a slot extending axially along the bushing between an inner and outer surface of the bushing, said process comprising the steps of:

(a) cutting the outer conductor to form a slit leading edge,

(b) placing the bushing over the outer conductor,

(c) inserting the slit leading edge into the axial slot from the inner surface of the bushing and

(d) relatively rotating the bushing and the coaxial cable so that at least a portion of the outer conductor having the slit leading end passes through the slot and wraps around the bushing.

16. The process of claim 15 in which the outer conductor is cut axially so that the slit leading edge is axially disposed.