Coaxial cable end connector with signal seal

• US 5,456,614 A
• Filed: 01/25/1994
• Issued: 10/10/1995
• Est. Priority Date: 01/25/1994
• Status: Expired due to Term

• Current Assignee: PPC Broadband Incorporated (Belden Inc.)
• Original Assignee: John Mezzalingua Associates Incorporated
• Inventors: Szegda, Andrew
• Primary Examiner(s): Rosenbaum, Mark
• Assistant Examiner(s): Knapp, Jeffrey T.
• Application Number:
  US08/186,672
• Time in Patent Office: 623 Days
• Field of Search: 439/320, 439/321, 439/322, 439/315, 439/489
• US Class Current: 439/321
• CPC Class Codes: H01R 9/0521 Connection to outer conductor by action of a nut

Abstract

A coaxial cable end connector includes a tubular post having a first flange at a front end thereof and a port fastener rotatably supported on the front end of the post, the fastener having a second flange adapted to coact in mechanical interengagement with the first flange. The first and second flanges establish a non-planar interface of interengagement which acts as a signal seal in response to being interengaged. The first flange includes a surface indentation which coacts with a surface protuberance of the second flange in response to the fastener being connected to a signal port. In addition, an interference protuberance associated with the fastener coacts with an inclined surface associated with the tubular body to establish another non-planar interface of interengagement which acts as an additional signal seal. In a further embodiment, the port fastener includes a coupling nut with an internally threaded surface having an undersized thread portion proximate to the first and second flanges, such that the enlarged thread creates a locking effect and enhances the signal seal as the port fastener is threaded onto the signal port.

Claims

1. A coaxial cable end connector comprising:

a tubular post having a first flange at a front end thereof and a cylindrical sleeve at a rear end thereof;

a tubular body supported on the front end of said post at a location adjacent to said first flange, said body defining a chamber which surrounds said cylindrical sleeve and which is adapted to engage a coaxial cable;

a port fastener rotatably supported on the front end of said post, said fastener having a second flange adapted to coact in mechanical interengagement with said first flange; and

first means associated with said first and second flanges for establishing a first non-planar interface of interengagement which acts as a signal seal in response to said first and second flanges being interengaged.

2. The end connector of claim 1, wherein said first means comprises a first surface contour associated with said first flange which coacts with a second surface contour associated with said second flange.

3. The end connector of claim 2, wherein said first surface contour comprises a surface indentation and said second surface contour comprises a surface protuberance.

4. The end connector of claim 2, wherein said first surface contour comprises a surface protuberance and said second surface contour comprises a surface indentation.

5. The end connector of claim 2, wherein said first surface contour comprises a circumferential channel and said second surface contour comprises a circumferential ridge.

6. The end connector of claim 1, wherein said port fastener comprises a coupling nut with an internally threaded surface, said internally threaded surface including undersized threads proximate to said first and second flanges, said undersized threads creating a locking effect and enhancing said signal seal as said port fastener is threaded onto a signal port.

7. The end connector of claim 6, wherein said undersized threads are broached so as to create an additional interference fit with mating threads associated with said signal port.

8. The end connector of claim 1 further comprising second means associated with said port fastener and said tubular body for establishing a second non-planar interface of interengagement which acts as a signal seal in response to said port fastener being coupled to said signal port.

9. The end connector of claim 8, wherein said second means comprises a protuberance associated with said port fastener which coacts with an inclined surface associated with said tubular body as said port fastener is coupled to said signal port.

10. A coaxial cable end connector comprising:

a tubular post having a first flange at a front end thereof and a cylindrical sleeve at a rear end thereof;

a tubular body supported on the front end of said post at a location adjacent to said first flange, said body defining a chamber which surrounds said cylindrical sleeve and which is adapted to engage a coaxial cable;

a port fastener rotatably supported on the front end of said post, said fastener having a second flange adapted to coact in mechanical interengagement with said first flange, said fastener defining an internally threaded surface including an undersized threaded portion which creates a locking effect as said port fastener is threaded onto a signal port; and

means associated with said first and second flanges for establishing a first non-planar interface of interengagement which acts as a signal seal in response to said first and second flanges being interengaged.

11. The end connector of claim 10, wherein said undersized threaded portion is broached so as to create an additional interference fit with mating threads associated with said signal port.

12. The end connector of claim 10, wherein said means for establishing a first non-planar interface comprises a first surface contour associated with said first flange which coacts with a second surface contour associated with said second flange.

13. The end connector of claim 12, wherein said first surface contour comprises a circumferential channel and said second surface contour comprises a circumferential ridge.

14. The end connector of claim 10 further comprising means associated with said port fastener and said tubular body for establishing a second non-planar interface of interengagement which acts as a signal seal in response to said port fastener being coupled to said signal port.

15. The end connector of claim 14, wherein said means for establishing a second non-planar interface comprises a protuberance associated with said port fastener which coacts with an inclined surface associated with said tubular body as said port fastener is coupled to said signal port.

16. A coaxial cable end connector comprising:

a tubular post having a first flange at a front end thereof and a cylindrical sleeve at a rear end thereof;

a tubular body supported on the front end of said post at a location adjacent to said first flange, said body defining a chamber which surrounds said cylindrical sleeve and which is adapted to engage a coaxial cable; and

a port fastener rotatably supported on the front end of said post, said fastener having a second flange adapted to coact in mechanical interengagement with said first flange, said fastener defining an internally threaded surface including an undersized threaded portion which creates a locking effect as said port fastener is threaded onto a signal port, wherein said undersized threaded portion is broached so as to create an additional interference fit with mating threads associated with said signal port.

17. The end connector of claim 16 further comprising first means associated with said first and second flanges for establishing a first non-planar interface of interengagement which acts as a signal seal in response to said first and second flanges being interengaged.

18. The end connector of claim 17, wherein said first means comprises a first surface contour associated with said first flange which coacts with a second surface contour associated with said second flange.

19. The end connector of claim 18, wherein said first surface contour comprises a circumferential channel and said second surface contour comprises a circumferential ridge.

20. The end connector of claim 17 further comprising second means associated with said port fastener and said tubular body for establishing a second non-planar interface of interengagement which acts as a signal seal in response to said port fastener being coupled to said signal port.

21. The end connector of claim 20, wherein said second means comprises a protuberance associated with said port fastener which coacts with an inclined surface associated with said tubular body as said port fastener is coupled to said signal port.