Combination locking and radio frequency interference shielding security system for a coaxial cable connector

• US 4,806,116 A
• Filed: 04/04/1988
• Issued: 02/21/1989
• Est. Priority Date: 04/04/1988
• Status: Expired due to Fees

• Current Assignee: Abram Ackerman
• Original Assignee: Abram Ackerman
• Inventors: Ackerman, Abram
• Primary Examiner(s): McGlynn, Joseph H.
• Application Number:
  US07/177,142
• Time in Patent Office: 323 Days
• Field of Search: 439/304, 439/578-585
• US Class Current: 439/304
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/542 Adapters

Abstract

A combination locking and radio frequency interference shielding security system for a coaxial cable connector having a female coaxial plug and a male coaxial plug on a coaxial cable is provided and consists of a head rotatably affixed to the male coaxial plug to engage with the female coaxial plug. The head and the male coaxial plug are retained within a sleeve when the sleeve is pushed over the male coaxial plug and the head, whereby the sleeve is rotatable with respect to the male coaxial plug and the head. A tool is also provided for selectively engaging the head with and disengaging the head from the female coaxial plug. The sleeve is fabricated out of a metal having a relatively high mass to act as a shield for radio frequency interference thus preventing leakage therefrom.

Claims

1. A combination locking and radio frequency interference shielding security system for a coaxial cable connector of the type having a female coaxial plug and a male coaxial plug on a coaxial cable, said system comprising:

(a) a sleeve having an open forward end and a partially covered rearward end, said sleeve sideably disposed onto the coaxial cable;

(b) a head having an internal locking well, said head rotatably affixed to the male coaxial plug so that said well can lockably engage with the female coaxial plug;

(c) means for retaining said head and the male coaxial plug with said sleeve, when said sleeve is pushed over the male coaxial plug and said head whereby said sleeve is rotatable with respect to the male coaxial plug and said head when the male coaxial plug and said head are so retained within said sleeve; and

(d) means for selectively engaging said head with and disengaging said head from the female coaxial plug when said head and the male coaxial plug are retained within said sleeve.

2. A combination locking and radio frequency interference shielding security system as recited in claim 1, wherein said retaining means includes:

(a) said sleeve having an inner annular groove formed near said open forward end thereof; and

(b) a C-shaped retaining ring engaged in said groove.

3. A combination locking and radio frequency interference shielding security system as recited in claim 2, wherein said selectively engaging and disengaging means includes:

(a) said sleeve having two spaced apart slots at said partially closed rearward end;

(b) said head having two spaced apart notches extending rearwardly; and

(c) a tool having a slotted handle and two spaced apart fingers, each of said fingers having a prong thereon so that said slotted handle can fit over and onto the coaxial cable allowing said fingers to pass through said slots so that said prongs can engage with said notches, thus said tool can be rotated to turn said head within said sleeve.

4. A combination locking and radio frequency interference shielding security system as recited in claim 3, further comprising:

(a) said head being frusto-conical in shape with forward end having a wide diameter and a sharp corner while rearward end having a narrow diameter and a curved corner; and

(b) said sleeve having an inner diameter which is larger than inner diameter of said C-shaped retaining ring, while said inner diameter of said C-shaped retaining ring is smaller than said wider diameter of said head, whereby when said sleeve is pushed over the male coaxial plug and said head, said C-shaped retaining ring will slide over said curved corner of said head, so that said inner diameter of said C-shaped retaining ring will expand and when said C-shaped retaining ring passes said sharp corner of said head, said inner diameter of said C-shaped retaining ring will contract to permanently retain said head and the male coaxial plug within said sleeve.

5. A combination locking and radio frequency interference shielding securing system as recited in claim 4, wherein said sleeve is fabricated out of a metal having a relatively high mass to act as a shield for radio frequency interference thus preventing leakage therefrom.