An impact recovery delineation quick connect/disconnect adapter system having studs and an alignment pin that enables an operator to connect and/or disconnect a delineation panel, support post and load cell from the supporting base (fixed or portable) without the use of any tools. The load cell provides...http://www.google.co.uk/patents/US6416248?utm_source=gb-gplus-sharePatent US6416248 - Quick release delineator apparatus
