Patent ID: 7507093

Claim:
Electrical module connecting means, comprising: (a) a first module ( 10 ) formed from a first non-resilient compressible electrically-insulating synthetic plastic material, said first module having an integral male lug projection ( 1 ), said lug projection initially having given first cross-sectional dimensions; (b) a second module ( 12 ) formed from a second non-resilient electrically-insulating synthetic plastic material, said second module containing a recess ( 2 ) colinearly arranged relative to said male projection, said recess including: (1) an entrance portion ( 6 ) colinearly arranged relative to said lug projection, said entrance portion having second cross-sectional dimensions that are less than said first cross-sectional dimensions, whereby said lug projection is over-dimensioned relative to said recess entrance portion, the length of said entrance portion being greater than the length of said lug projection; (2) an enlarged chamber portion ( 7 ) having cross-sectional dimensions that are greater than the corresponding cross-sectional dimensions of said recess entrance portion; and (3) a transition wall surface ( 8 ) defined between said recess entrance portion and said enlarged chamber portion; (c) said lug projection being axially inserted into said recess with a first section ( 1 a ) of said lug projection being compressed to reduced cross-sectional dimensions by said recess entrance portion, and a second section ( 1 b ) flowing into said recess enlarged chamber portion, said first synthetic plastic material having an expansion characteristic such that said second section expands to define a locking end portion of greater cross-sectional dimensions having a locking surface ( 9 ) in locking engagement with said transition wall surface, whereby said first module is locked against separation from said second module.