A solderless printed wiring board module for receiving and securing surface mounted solderless electronic component carrier and electronic components without carrier upon a printed wiring board, the module also providing a heat transfer path to a surface away from the printed wiring board and the module...http://www.google.com.au/patents/US4933808?utm_source=gb-gplus-sharePatent US4933808 - Solderless printed wiring board module and multi-module assembly
