EP 0306507 B1 19910717 - A HYDRAULIC CYLINDER WITH A BUILT-IN ELECTRIC PISTON POSITION INDICATOR
Title (en)
A HYDRAULIC CYLINDER WITH A BUILT-IN ELECTRIC PISTON POSITION INDICATOR
Publication
Application
Priority
DK 88687 A 19870220
Abstract (en)
[origin: WO8806243A1] A hydraulic cylinder (1) comprising a cylinder housing (3) and a piston rod (7) with a through opening (7a) is provided with a built-in inductive piston position indicator (20) extending through the opening (7a). The housing of this indicator is secured to one end cover (5) of the hydraulic cylinder, and the core of said indicator is secured to the piston rod (7) by way of a rod. When the piston (6) moves a distance out of its bottom position the core of the piston position indicator (2) moves a corresponding distance which causes an electric signal to be transmitted by the piston position indicator (20), which signal corresponds to the moved distance of the piston (6).
IPC 1-7
IPC 8 full level
G01B 7/00 (2006.01); F15B 15/28 (2006.01)
CPC (source: EP)
F15B 15/2861 (2013.01); F15B 15/2892 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8806243 A1 19880825; AU 1393088 A 19880914; BR 8805634 A 19890815; DK 165562 B 19921214; DK 165562 C 19930426; DK 88687 A 19880821; DK 88687 D0 19870220; EP 0306507 A1 19890315; EP 0306507 B1 19910717; FI 884853 A0 19881020; FI 884853 A 19881020; JP H01502298 A 19890810
DOCDB simple family (application)
DK 8800019 W 19880211; AU 1393088 A 19880211; BR 8805634 A 19880211; DK 88687 A 19870220; EP 88902110 A 19880211; FI 884853 A 19881020; JP 50219388 A 19880211