Braking device of measuring instrument and measuring instrument

Details Braking device of measuring instrument and measuring instrument Braking device of measuring instrument and measuring instrument

2011-06-21

2011-06-21

Johnson, Amy Cohen (Department: 2841)

Geometrical instruments

Distance measuring

Single contact with a work engaging support

C033S556000, C033SDIG013

Reexamination Certificate

active

07963047

ABSTRACT:
A braking device of a measuring instrument includes a body case and a spindle that penetrates the body case to be axially and reciprocably displaceable. The braking device includes a cylinder of which a first end is attached to the body case for accommodating a second end of the spindle, a piston provided on the second end of the spindle and accommodated to be reciprocably displaceable within the cylinder, a closing member provided on a second end of the cylinder to form a damper chamber between the closing member and the piston; a shaft connected to a side of the piston opposite to the spindle and penetrates the closing member; and a knob provided on a distal end of the shaft. A clearance is provided between the closing member and the shaft to circulate air.

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