0921093-A2 is referenced by 2 patents and cites 8 patents.

The protection system for outriggers of a chassis includes a non-contact distance measuring device (315, 340), associated with at least one of the outriggers (310, 330) and the chassis (300, 320), mounted on one of the outriggers (310, 330)and the chassis (300, 320). The non-contact distance measuring device (315, 340) measures the distance to the ground along a predetermined angle, and generates a warning signal based on the measured distance. A controller (350) stops operation of the outriggers (310, 330) in response to the warning signal.

Title
Luffing angle measurement system
Application Number
EP19980123017 19981204
Publication Number
0921093 (A2)
Application Date
December 4, 1998
Publication Date
June 9, 1999
Inventor
Eyler Francis R
US
Bonesteel Oliver P
US
Fleagle Jon E
US
Eckstine Dennis W
US
Banks William W
US
Assignee
Grove Us
US
IPC
B66C 23/82
G01S 17/00
G01S 15/00
G01S 13/00
F16J 01/00
F15B 15/00
E04G 01/00
B66C 23/00
B66C 15/00
B66C 13/18
G01S 17/93
G01S 17/88
G01S 15/93
G01S 15/88
G01S 13/93
G01S 13/88
G01C 15/00
G01B 21/02
G01B 21/00
G01B 11/02
F16J 10/00
F16J 01/02
F15B 15/28
E04G 01/24
B66F 17/00
B66F 11/04
B66F 09/24
B66C 23/90
B66C 23/78
B66C 15/04
B66C 13/50
B66C 13/46
B60T 07/12
B60R 21/00
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