Snap-n-seal coaxial connector

• US 4,834,675 A
• Filed: 10/13/1988
• Issued: 05/30/1989
• Est. Priority Date: 10/13/1988
• Status: Expired due to Term

• Current Assignee: Thomas & Betts International Incorporated (ABB Limited)
• Original Assignee: LRC Electronics, Inc.
• Inventors: Samchisen, Edward J.
• Primary Examiner(s): Pirlot, David
• Application Number:
  US07/257,401
• Time in Patent Office: 229 Days
• Field of Search: 439/587, 439/589, 439/578, 439/585, 439/271-277, 439/283, 29/747, 29/857, 29/876, 29/881
• US Class Current: 439/578
• CPC Class Codes: H01R 13/5205 Sealing means between cable and housing, e.g. grommet H01R13/5221 takes precedence
• CPC Class Codes: H01R 9/0521 Connection to outer conductor by action of a nut
• CPC Class Codes: Y10T 29/49174 Assembling terminal to elongated conductor

Abstract

A snap-n-seal connector for coaxial cables includes a connector body, an annular compression sleeve and optionally, a sealing nut. The connector body includes an annular collar member which peripherally engages the jacket of a coaxial cable, a post member coaxially disposed within the annular collar member to engage the dielectric insulation and the braided shield of the coaxial cable, and a rotatable nut member disposed in combination with the collar and post members. The connector body further includes a sealing member disposed between the collar and nut members to form a moisture-proof seal therebetween and an annular contact spring member seated within the collar member and circumferentially disposed about the post member to engage the braided shield of the coaxial cable. The compression sleeve is configured for snap fitting engagement between the jacket of the coaxial cable and the annular collar member to provide a moisture proof circular seal therebetween and to force the braided shield into mechanical and electrical engagement with the contact spring member. The compression sleeve includes a sealing member to provide a 360 degree moisture proof seal between the compression sleeve and the collar member. The sealing nut includes a sealing member and is threaded onto an interface connector to provide a moisture proof seal between the interface connector and the nut member.

Claims

1. A snap-n-seal coaxial connector for mechanically and electrically interconnecting a coaxial cable to an electronic device having a threaded interface connector, the coaxial cable including a center conductor, a dielectric insulator encasing the center conductor, at least one braided shield disposed about the dielectric insulator and a jacket covering the at least one braided shield, comprising:

connector body means for coaxially receiving the coaxial cable, said connector body means including

means for forming a moisture-proof seal between elements of said connector body means,

nut member means adapted for rotatably engaging the threaded interface connector of the electronic device, and

resilient means for mechanically and electrically engaging the at least one braided shield of the coaxial cable; and

compression sleeve means for snap engaging into said connector body means to mechanically connect the coaxial cable to said connector body means, said compression sleeve means in combination with said connector body means forming a 360 degree uniform compressive moisture-proof seal between said compression sleeve means and the jacket of the coaxial cable, said compression sleeve means including

means for forming a 360 degree uniform compressive moisture-proof seal between said compression sleeve means and said connector body means.

2. The snap-n-seal connector of claim 1 wherein said said resilient means comprises:

an annular conductive member configured to be disposed within said conductor body means; and

a plurality of segmented arcuate conductive members integrally formed with said annular conductive member, said plurality of segmented arcuate conductive members having resilient ends depending outwardly from said annular conductive member to form fingers for resiliently engaging the at least one braided shield of the coaxial cable.

3. The snap-n-seal connector of claim 1 further comprising sealing nut means configured to be rotated onto the threaded interface connector and counterrotatable on the threaded interface connector to snugly engage said nut member means of said connector body means, said sealing nut means including means for forming a compressive moisture-proof seal between said sealing nut means and said nut member means.

4. The snap-n-seal connector of claim 1 wherein said compression sleeve means further comprises

means for separably attaching said compression sleeve means to said connector body means.

5. The snap-n-seal connector of claim 4 wherein said compression sleeve means comprises

an annular compression sleeve formed from a resinous plastic, said annular compression sleeve having an annular groove formed therein for seating of said sealing means and further including

a flanged end configured to abuttingly engage said connector body means;

a tapered end configured for insertion into said connector body means and for urging the at least one braided shield of the coaxial cable into mechanical and electrical engagement with said resilient means; and

wherein said separable attaching means is an annular attachment ring integrally formed with said flanged end of a synthetic resinous plastic.

6. The snap-n-seal connector of claim 5 wherein said annular compression sleeve further includes a ramped annular ridge formed peripherally thereabout, said ramped annular ridge coacting with said connector body means to lock said compression sleeve within said connector body means.

7. A method for installing a snap-n-seal connector to a coaxial cable, the coaxial cable including a center conductor, a dielectric insulator encasing the center conductor, at least one braided shield disposed about the dielectric insulator and a jacket covering the at least one braided shield, comprising the steps of:

positioning said snap-n-seal connector including a connector body assembled in combination from a collar member, a post member, a nut member and a compression sleeve separably attached to said connector body by means of an annular attachment ring, placing said compression sleeve the coaxial cable by sliding said compression sleeve over the coaxial cable;

preparing a free end of the coaxial cable for installation in said snap-n-seal connector by removing a portion of the jacket to expose the at least one braided shield, the dielectric insulator and the center conductor and folding the at least one braided shield;

separating said connector body from said compression sleeve;

inserting the coaxial cable into said collar member to have the dielectric insulator flush with a distal end of said post member; and

exerting an insertion force against said compression sleeve to cause said compression sleeve to snap into said collar member of said connector body.