Geometrical instruments – Gauge – Having a movable contact probe
Patent
1997-11-18
1999-10-19
Bennett, G. Bradley
Geometrical instruments
Gauge
Having a movable contact probe
33832, 737291, G01B 322, G01L 708
Patent
active
059668296
ABSTRACT:
A gage mechanism for a blood pressure measuring device or other similar apparatus includes a supported shaft member having one end in contact with an inflatable bellows. A pointer is attached at an opposite end of the shaft and a helically wound spring is attached to the shaft and a supporting structure. As the bellows inflates, the shaft is axially displaced and causes rotation due to the constraint of the helical ribbon spring, causing a corresponding angular deflection of the attached pointer relative to an indicating scale. The mechanism includes a first adjustment member for allowing the pointer to be preset to a zero or calibrated position, and a second adjustment mechanism that controls the amount of angular rotation of the shaft and pointer for a displacement of the bellows.
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Danna Dominick
Johnson Edward A.
Krauter Allan I.
Lia Raymond A.
Smith Timothy J.
Bennett G. Bradley
Welch Allyn Inc.
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