Cable clamping device

Details Cable clamping device Cable clamping device

2000-03-31

2001-12-04

Paumen, Gary (Department: 2833)

Electrical connectors

Metallic connector or contact having movable or resilient...

Hinged jaw type having alignable conductor receiving bores

Reexamination Certificate

active

06325677

ABSTRACT:

BACKGROUND
The present invention relates to cable-clamping devices, and in particular to cable-clamping devices that provide a reduced tendency to cut into the clamped cable as the clamping devices are closed.
U.S. Pat. No. 4,548,462, assigned to the assignee in the present invention, provides a particularly effective and reliable cable-clamping device. As shown in
FIG. 5
of this patent, two pairs of opposed clamping surfaces deform the clamped cable to provide a secure mechanical and electrical interconnection between the cable and the cable-clamping device.
Cable-clamping devices of the type shown in U.S. Pat. No. 4,548,462 can on occasion cut into the cable to some extent during the clamping operation. Such cutting of the cable can be objected to by some users, and it therefore would be advantageous if such cutting action could be reduced or avoided.
SUMMARY
By way of introduction, the preferred embodiment described below is a cable-clamping device having two parts, one of which is received in the other for rotation about an axis. The first part defines a cable-receiving opening, and the second part defines a cable-receiving bore. The opening and the bore are aligned when the cable-clamping device is open, and they are misaligned to a selected extent when the device is closed by rotating the second part in the first part. Opposed portions of the opening and bore define respective cable-clamping surfaces, and the cable-clamping surface in the bore of the second part is formed by a chamfer that provides a large cable-clamping area and a blunted edge to the cable-receiving bore. This arrangement has surprisingly been found to improve pull-out resistance of the device while simultaneously reducing any tendency of the clamping-device to cut into the cable clamped in the device.
The foregoing paragraph has been provided by way of introduction, and it is not intended to limit the scope of the following claims.


REFERENCES:
patent: D. 296777 (1988-07-01), Cornell
patent: 3973821 (1976-08-01), Scott et al.
patent: 4001921 (1977-01-01), Lawlor et al.
patent: 4357068 (1982-11-01), Cornell et al.
patent: 4479694 (1984-10-01), Cornell et al.
patent: 4548462 (1985-10-01), Cornell
patent: 4898551 (1990-02-01), Cornell
patent: 5401194 (1995-03-01), Cornell
patent: 5466176 (1995-11-01), Cornell et al.
patent: 5765962 (1998-06-01), Cornell et al.
patent: 5919065 (1999-07-01), Warner et al.

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