An expandable while-in-use cover includes: a cap having a pair of cap side walls, a first cap end wall, a second cap end wall and a top wall, which define a cap opening and a cap interior; a base having a pair of base side walls, a first base end wall, a second base end wall and a back wall, which define...http://www.google.fr/patents/US7374058?utm_source=gb-gplus-shareBrevet US7374058 - Extendable while-in-use cover
