Système et parapluie à fermeture automatique
He had obtained a French patent, as well as a US patent for his invention. 
In his US patent the inventor explained:
This invention relates to improvements in umbrellas and sun-shades; and it consists, first, in a construction of a spring-joint uniting the ribs to the stretchers, whereby the stretchers and ribs are held snugly against the stick when the umbrella is closed ...
 FR patent No 137,250, US patent No 235,943
 LU patent No 34