Pressure gauge for indicating small pressure changes
AssigneeHauser Verwaltungs-Gesellschaft mit beschrankter Haftung
InventorGerhard Desor
Life of this patent
Estimating the term…
Abstract
A pressure gauge for indicating small pressure changes includes a sac of thin flexible film material communicable with and inflatable by the pressure to be indicated, during use. The sac is supported by a base so that the sac effectively inflates in a generally vertical direction, during use. A transmission plate is pivotally mounted to the base and bears against the sac under the influence of its own weight. A pointer is directly connected to the transmission plate to indicate the position thereof under the influence of pressure in the sac to effect the indication of that pressure.
Claims16
A pressure gauge for indicating small pressure changes comprising a sac of thin flexible film material communicable with and inflatable by the pressure to be indicated, during use;
- a base for supporting the sac wherein the sac effectively inflates generally outwardly therefrom, during use;
- a transmission plate;
- means pivotally mounting the transmission plate to rest freely against the sac, comprising a hinge connecting the transmission plate to the base for free swinging movement of the transmission plate in response to the inflation and deflation of the sac;
- and a pointer directly connected to the transmission plate to indicate the position thereof under the influence of pressure to the sac to effect the indication of that pressure.
Dependencies are inferred from the claim text.