Coaxial fitting contact tube construction

• US 7,931,509 B2
• Filed: 09/22/2010
• Issued: 04/26/2011
• Est. Priority Date: 09/25/2009
• Status: Active Grant

• Current Assignee: Perfectvision Manufacturing Incorporated
• Original Assignee: Perfectvision Manufacturing Incorporated
• Inventors: Shaw, Glen David, Chastain, Robert J.
• Primary Examiner(s): TA, THO DAC
• Application Number:
  US12/924,187
• Publication Number:
  US 20110076885A1
• Time in Patent Office: 216 Days
• Field of Search: 439/654, 439/748, 439/842, 439/851
• US Class Current: 439/851
• CPC Class Codes: H01R 13/111 co-operating with pins having a circular transverse section
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/542 Adapters

Abstract

Contact tubes and coaxial cable fittings with the tubes, including barrel connectors, right angle connectors, and sockets. The elongated, tubular contact tube extends coaxially within each fitting, establishing at least one female juncture for receiving the center conductor projecting from a coaxial connector. The insulators and bushings center and retain the contact tube within the connectors. The contact tubes are rolled from beryllium, copper alloy sheets having slotted portions defined on one or both sheet ends. The slotted portions comprise a plurality of parallel, curved, slots, each of which borders curved metal strips. Half slots at the bottom and top of the slotted portions adjoin each other after rolling to form an additional slot. Because of the shape of the slots and strips a generally pentagonal configuration is assumed after rolling and contraction of the slotted region, such that contact points overlap.

Claims

1. A contact tube for coaxial cable fittings comprising at least one female fitting end, the tube comprising:

a longitudinal axis;

a generally rectangular metallic sheet adapted to be rolled into tubular form, each sheet comprising a generally planar midsection, at least one generally planar, integral end portion, and at least one integral slotted portion disposed between an end portion and said midsection;

each slotted portion comprising a plurality of parallel, curved, slots, radially separated from one another by curved metal strips;

wherein after rolling the midsection and end portions assume a tubular configuration of a first diameter, and the slotted portions form a tubular configuration with a second diameter smaller than said first diameter, with radially spaced apart strips separated at equidistant radial intervals by slots; and

,

wherein said strips are bent inwardly towards said longitudinal axis to form radially spaced apart contact points disposed in a generally polygonal configuration, the strips contacting the periphery of an inner conductor from a male fitting electrically connect therewith and overlapping one another.

2. The contact tube as defined in claim 1 further comprising half slots associated with each slotted end portion adapted to form a full slot after rolling of said sheet.

3. The contact tube as defined in claim 1 wherein the sheet comprises beryllium copper alloy.

4. The contact tube as defined in claim 1 wherein the radially spaced apart contact points assume a generally pentagonal configuration.

5. The contact tube as defined in claim 1 wherein the radially spaced apart contact points assume a generally overlapping configuration adapted to connect with standard coaxial cables and larger diameter coaxial cable.

6. A barrel connector adapted to be connected with a pair of coaxial cable fittings, the barrel connector comprising:

an elongated tubular body having an interior and a pair of opposite, spaced-part threaded ends adapted to threadably receive a coaxial connector;

a contact tube extending coaxially within said barrel connector body between said ends;

means for centering and securing the contact tube within said barrel connector; and

,

wherein the contact tube comprises;

a longitudinal axis;

a generally rectangular metallic sheet adapted to be rolled into a tube, each sheet comprising a generally planar midsection, at least one generally planar, integral end portion, and at least one integral slotted portion disposed between an end portion and said midsection;

each slotted portion comprising a plurality of generally parallel, curved, slots, radially separated from one another by curved metal strips;

wherein after rolling the midsection and end portions assume a tubular configuration of a first diameter, and the slotted portions form a tubular configuration with a second diameter smaller than said first diameter, with radially spaced apart strips separated at equidistant radial intervals by slots; and

,

wherein said strips are bent inwardly towards said longitudinal axis to form radially spaced apart contact points disposed in a generally polygonal configuration, the strips overlapping and contacting the periphery of an inner conductor from a male fitting electrically connect therewith.

7. The barrel connector as defined in claim 6 wherein the contact tube further comprises half slots associated with each slotted end portion adapted to form a full slot after rolling of said sheet.

8. The barrel connector as defined in claim 7 wherein the contact tube sheet comprises beryllium copper alloy.

9. The barrel connector as defined in claim 7 wherein the radially spaced apart contact points assume a generally pentagonal configuration.

10. The barrel connector as defined in claim 9 wherein the radially spaced apart contact points assume a generally pentagonal configuration adapted to connect with standard coaxial cables and larger diameter coaxial cable.

11. A right angled connector adapted to be connected to a coaxial cable fitting, the right angled connector comprising:

a tubular, right angled body having an interior and at least one threaded end adapted to threadably receive a coaxial connector;

a contact tube extending coaxially within said barrel connector body from said end;

means for centering and securing the contact tube within said right angled connector; and

,

wherein the contact tube comprises;

a longitudinal axis;

a generally rectangular metallic sheet adapted to be rolled into tubular form, each sheet comprising a generally planar midsection, at least one generally planar, integral end portion, and at least one integral slotted portion disposed between an end portion and said midsection;

each slotted portion comprising a plurality of parallel, curved, slots, radially separated from one another by curved metal strips;

wherein after rolling the midsection and end portions assume a tubular configuration of a first diameter, and the slotted portions form a tubular configuration with a second diameter smaller than said first diameter, with radially spaced apart strips separated at equidistant radial intervals by slots; and

,

wherein said strips are bent inwardly towards said longitudinal axis to form radially spaced apart contact points disposed in a generally polygonal configuration, the strips overlapping and contacting the periphery of an inner conductor from a male fitting electrically connect therewith.

12. The right angled connector as defined in claim 11 wherein the contact tube further comprises half slots associated with each slotted end portion adapted to form a full slot after rolling of said sheet.

13. The right angled connector as defined in claim 11 wherein the contact tube sheet comprises beryllium copper alloy.

14. The right angled connector as defined in claim 13 wherein the radially spaced apart contact points assume a generally square configuration.

15. The right angled connector as defined in claim 13 wherein the radially spaced apart contact points assume a generally pentagonal configuration adapted to connect with standard coaxial cables and larger diameter coaxial cable.

16. A singled ended socket adapted to be connected to a coaxial cable fitting, the socket comprising:

a tubular, right angled body having an interior and at least one threaded end adapted to threadably receive a coaxial connector;

a contact tube extending coaxially within said barrel connector body from said end;

means for centering and securing the contact tube within said right angled connector; and

,

wherein the contact tube comprises;

a longitudinal axis;

a generally rectangular metallic sheet rolled adapted to be rolled into tubular form, each sheet comprising a generally planar midsection, at least one generally planar, integral end portion, and at least one integral slotted portion disposed between an end portion and said midsection;

each slotted portion comprising a plurality of parallel, curved, slots, radially separated from one another by curved metal strips;

wherein after rolling the midsection and end portions assume a tubular configuration of a first diameter, and the slotted portions form a tubular configuration with a second diameter smaller than said first diameter, with radially spaced apart strips separated at equidistant radial intervals by slots; and

,

wherein said strips are bent inwardly towards said longitudinal axis to form radially spaced apart contact points disposed in a generally polygonal configuration, the strips overlapping and contacting the periphery of an inner conductor from a male fitting electrically connect therewith.

17. The socket as defined in claim 16 wherein the contact tube further comprises half slots associated with each slotted end portion adapted to form a full slot after rolling of said sheet.

18. The socket as defined in claim 16 wherein the contact tube sheet comprises beryllium copper alloy.

19. The socket as defined in claim 16 wherein the radially spaced apart contact points assume a generally square configuration.

20. The socket as defined in claim 16 wherein the radially spaced apart contact points assume a generally pentagonal configuration adapted to connect with standard coaxial cables and larger diameter coaxial cable.