Thaddeus R Grabowski

US Patent:

61370754, Oct 24, 2000

Filed:

Nov 6, 1998

Appl. No.:

9/187151

Inventors:

Thaddeus Grabowski - Pound Ridge NY
William J. Tkazyik - Hyde Park NY
Anthony Tolla - Darien CT
Gregory Sterc - Trumbull CT

Assignee:

C&M Technologies Group, Inc. - Wauregan CT

International Classification:

B23K 1100
B23K 1110

US Classification:

219 5622

Abstract:

A method and apparatus for producing an electrical bond between a conductor and an electrical connector contact. The apparatus generally comprises a power source and a weld head. The power source has a first polarity output and a second polarity output. The weld head has an input for connection to the first polarity output of the power source. The apparatus includes a first electrode electrically connected to the weld head input. The apparatus further includes a second electrode electrically connected to the second polarity output of the power source. The method comprises the steps of positioning the conductor and the connector contact so that the conductor and connector contact are in physical contact with one another and positioned over the second electrode, contacting the conductor and the connector contact with the first electrode with a predetermined compressive force so that the conductor and connector contact are pressed against each other and against the second electrode, and allowing a current of a predetermined magnitude to flow through the first electrode, the conductor and connector contact, and the second electrode.

US Patent:

6064026, May 16, 2000

Filed:

Nov 6, 1998

Appl. No.:

9/187150

Inventors:

William J. Tkazyik - Hyde Park NY
Thaddeus Grabowski - Pound Ridge NY
Anthony Tolla - Darien CT
Gregory Sterc - Trumbull CT

Assignee:

C&M Corporation - Wauregan CT

International Classification:

B23K 1114
B23K 1116

US Classification:

219 5622

Abstract:

A method for producing an electrical bond between a contact element of an electrical connector and a conductor, the contact element having a portion that is bifurcated such that the conductor is positioned between the furcations, the method comprising the steps of (a) providing a system comprising a power source and a weld head, the weld head having a first input and a second input for connection to a first polarity output and a second polarity output, respectively, of the power source, the system further including first and second electrodes movably attached to the weld head and electrically connected to the first and second inputs, respectively, (b) positioning the electrodes on the weld head to create a space between the electrodes that is sized for receiving both furcations of each contact element, (c) moving the weld head toward the furcations to effect contact between the first electrode and one of the furcations and between the second electrode and the other furcation, the contact being made at a predetermined force that causes the furcations to bend toward each other, and (d) allowing a current of a predetermined magnitude to flow through (i) the first input, (ii) the first electrode, (iii) the furcation in contact with the first electrode, (iv) the conductor, (v) the furcation in contact with the second electrode, (vi) the second electrode and (vii) the second input.