Enclosed measuring device

Details Enclosed measuring device Enclosed measuring device

1987-07-01

1988-03-22

Haroian, Harry N.

Geometrical instruments

Area integrators

Electrical

277DIG7, 277DIG4, 277237R, G01B 1102

Patent

active

047319305

ABSTRACT:
An enclosed measuring device for measuring the relative position of two objects which are movable relative to each other includes a housing provided with a longitudinal slot. The slot is closed by means of cover members mounted in a chamber of the housing. The cover members are comb-shaped in transverse cross-section and are arranged so as to mesh with each other, resulting in a labyrinth-type line of contact between the cover members. A carrying member providing the connection between the interior of the housing and one of the objects has a meander-like shape conforming to the labyrinth-type line of contact between the two cover members, so that an effective sealing action is ensured even at the location where the carrying member extends through the cover members.

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