1
Croguennec Jean: Method and device for protecting a sheet metal working machine by means of a laser beam.. Erpic, June 26, 1985: EP0146460-A2 (86 worldwide citation)

1. Method for protecting, by means of a laser beam, a sheet metal working machine, such as a bending press, a shearing machine, a rolling machine or other like machine, comprising a tool (3) vertically mobile in the direction of the sheet metal in abutment on a support, in which the safety height wh ...


2
Croguennec Jean, Hubert Jean Louis: Dispositif de protection par une barriere immaterielle. Realisa Equip Indls Secur Et, March 18, 1983: FR2512920-A1 (6 worldwide citation)

LE DISPOSITIF DE PROTECTION POUR ENGENDRER UNE BARRIERE IMMATERIELLE DE SECURITE DESTINEE, LORSQU'ELLE EST INTERROMPUE, A DECLENCHER UN DISPOSITIF D'ARRET D'URGENCE D'UNE MACHINE DU GENRE PRESSE PLIEUSE, EST CONSTITUE PAR UN RAYON LUMINEUX5 OU NON EMIS PAR UNE SOURCE ET RECU PAR UN CAPTEUR POUR S'ET ...


3
Croguennec Jean: Method and device for protecting a sheet metal working machine by means of a laser beam.. Ereis Exploit, June 7, 1985: FR2556074-A1 (1 worldwide citation)

1. Method for protecting, by means of a laser beam, a sheet metal working machine, such as a bending press, a shearing machine, a rolling machine or other like machine, comprising a tool (3) vertically mobile in the direction of the sheet metal in abutment on a support, in which the safety height wh ...


4
Croguennec Jean, Hubert Jean Louis: Dispositif de detection et de surveillance de langle de glissement de lorgane de freinage dune piece tournante. Realisa Equip Indls Secur Et, February 11, 1983: FR2511144-A1

LE DISPOSITIF DE DETECTION ET DE SURVEILLANCE DE L'ANGLE DE GLISSEMENT DE L'ORGANE DE FREINAGE 2 D'UNE PIECE TOURNANTE 1 EST CONSTITUE PAR: