Tamper-resistant cable terminator system

• US 5,055,060 A
• Filed: 09/05/1989
• Issued: 10/08/1991
• Est. Priority Date: 06/02/1989
• Status: Expired due to Term

• Current Assignee: Gilbert Engineering Company Incorporated (Corning Incorporated)
• Original Assignee: Gilbert Engineering Company Incorporated (Corning Incorporated)
• Inventors: Down, William J., Hayward, Robert D.
• Primary Examiner(s): Schwartz, Larry I.
• Assistant Examiner(s): Vu, Hien D.
• Application Number:
  US07/402,895
• Time in Patent Office: 763 Days
• Field of Search: 439/304, 439/307, 439/578, 439/579, 439/580, 439/581, 439/582, 439/583, 439/584, 439/585, 439/133, 81/442, 81/450, 29/270, 29/278
• US Class Current: 439/304
• CPC Class Codes: H01R 13/6397 with means for preventing unauthorised use
• CPC Class Codes: H01R 2201/18 for television
• CPC Class Codes: Y10T 29/53909 Means comprising hand manipulatable tool

Abstract

A tamper-resistant terminator includes a connector body rotatably encapsulated with a shield. A port in the shield receives a terminal of a cable transmission system therethrough for rotational engagement with a threaded bore within the connector body. Another port in the shield provides access to a socket defined by a smooth continuous cylindrical body. The socket and the threaded bore extend in opposite directions along a longitudinal axis about which the shield is freely rotatable. A tool includes a tubular shaft having a knurled portion at the free end extends from a first handle section. A disc residing adjacent the end of the tubular shaft is carried by a shaft rotatably journaled with the tubular shaft and drivingly engaged with a second handle section. In response to relative rotation between the handle sections the disc and the knurled section of the tubular shaft move between a concentric portion for telescoping movement within the socket of the connector body and an eccentric portion in for driving engagement with the socket.

Claims

1. A tamper-resistant terminator system especially adapted for use in combination with a cable transmission system,

said cable transmission system including a device for transmitting a signal and including an attachment element for rotatably cooperating with a mating element carried by a connector associated with a cable for receiving a signal,

and for preventing unauthorized engagement of said connector with said device, said terminator system comprising:

a) a terminator including

(i) a body having two ends, and including a second mating element formed at one end for cooperating with said attachment element, and a socket formed at the other end, said second mating element and said socket being coaxial along a first axis of rotation, and

(ii) a shield encapsulating said body for relative rotation about said first axis of rotation and having a first open end surrounding said second mating element, and a second open end surrounding said socket; and

b) a tool including

(i) a shaft assembly, and

(ii) actuating means for selectively moving said shaft assembly between

a retracted position in which said shaft assembly is movable in a longitudinal direction along said first axis of rotation within said second access port and said socket, and

an extended position in which a portion of said shaft assembly frictionally and drivingly engages said body,

wherein said actuating means includes means for moving said portion laterally with respect to said first axis of rotation.

2. The terminator system of claim 1, wherein the shaft assembly of said tool includes:

a) a first shaft extending coaxially along a first longitudinal axis of symmetry; and

(b) a second shaft extending coaxially along a second longitudinal second axis of symmetry which is substantially parallel to said first longitudinal axis of symmetry and rotatable about a second axis of rotation which is spaced from and substantially parallel to said second longitudinal axis of symmetry,

said second shaft being rotated about said axis of rotation by said actuating means between said retracted position in which said first and said second longitudinal axes of symmetry are substantially congruent and said extended position in which said first and said second longitudinal axes of symmetry are spaced apart.

3. The terminator system of claim 1, wherein said socket is defined by a continuous sidewall extending coaxially along said first axis of rotation.

4. The terminator system of claim 1, further including:

a) a frustoconically beveled surface formed at said first open end of said shield; and

b) an external seal member interposed between said device and said terminator for normally effecting a sealing engagement therebetween when said attachment element is engaged with said second mating element, said external seal member comprising an annular element for encircling and sealingly engaging said frustroconically bevelled surface and said attachment element.

5. The terminator system of claim 4, wherein said seal member alternately effects a sealing engagement between said device and said connector when said attachment element is engaged with said second mating element.

6. The terminator system of claim 1, wherein said terminator further includes closure means for selectively closing said second access port.

7. The terminator system of claim 6, wherein said closure means includes:

a) a second attachment element formed on said shield substantially coaxial with said second open end; and

b) a cap having a third mating element for cooperating with said second attachment element.

8. The terminator system of claim 7, further including a seal member for effecting seal engagement between said shield and said cap.