Metal working – Means to assemble or disassemble – Means to disassemble electrical device
Reexamination Certificate
1998-11-10
2002-06-04
Vo, Peter (Department: 3729)
Metal working
Means to assemble or disassemble
Means to disassemble electrical device
C029S764000, C029S426500, C029S03300H, C029S251000, C029S283000, C140S147000, C269S903000
Reexamination Certificate
active
06397457
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to an apparatus and a method for removing a connector from a printed circuit board, and more specifically a connector of the type which includes contact pins of the right angle type (bent at an angle of about 90°), e.g. those of the type known under the name “Millipacs”.
Such type of connectors is provided with contact pins which are attached to the printed circuit board by means of a compliant attachment area also called “press-fit” zone.
Whereas it is comparatively easy to push a connector with straight pins out of the board by means of a press, such is not the case with contact pins which are bent at an angle of 90°, since in this instance side forces are exerted in relation to the direction of the thrust.
Up to now, it was very difficult and even impossible, to remove such connectors from a printed circuit board when they had to be replaced, without damaging the metal plating of the holes in the PC board.
Considering that the printed circuit boards are essentially more expensive than the connectors, it is important that a repair should be able to be carried out without damaging the board.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an apparatus and a method which make is possible to remove a connector with contact pins which are bent at an angle of about 90° from a printed circuit board without damaging the holes and the surface of such board.
This object is achieved by means of the invention, the most important features of which are set out in the attached claims.
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Murko et al, Module Removal Tool, IBM Technical Disclosure Bulletin, vol. 20, No. 11A, p. 4305, Apr. 1978.*
“Removal Support Tool for Compliant Pin Connectors”, IBM Technical Disclosure Bulletin, vol. 39, No. 11 Nov. 1996, pp. 33-35.
Belgian Search Report.
Framatome Connectors International
Perman & Green LLP
Tugbang A. Dexter
Vo Peter
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