Device for measuring feed movement

Details Device for measuring feed movement Device for measuring feed movement

1987-04-07

1989-04-11

Look, Edward K.

Expansible chamber devices

With inspection window in expansible chamber wall portion

With lock

92 88, F01B 2526

Patent

active

048195464

ABSTRACT:
A measuring system is disclosed which is integrated into a feed arrangement in such a way that the structural size of the feed arrangement is not increased significantly. In the disclosed embodiments, the feed arrangement includes a compressed air cylinder which includes a hollow profile and a piston movable within a cylinder defined by the profile. In one embodiment, a measuring scale is positioned within a groove formed within the hollow profile and this measuring scale defines a magnetic measuring graduation which is scanned by a scanning unit accommodated in the piston of the air cylinder.

REFERENCES:
patent: 2699757 (1955-01-01), Tornkrist
patent: 3820446 (1974-06-01), Granbom
patent: 3833303 (1974-09-01), Burns et al.
patent: 4164893 (1979-08-01), Granbom
patent: 4170826 (1979-10-01), Holstein
patent: 4176586 (1979-12-01), Stoll
patent: 4279195 (1981-07-01), Miller
patent: 4400880 (1983-08-01), Nelle
patent: 4423664 (1984-01-01), Buchl
patent: 4471304 (1984-09-01), Wolf
patent: 4481869 (1984-11-01), Garlapaty

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