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US 4,358,954 AGranted
Traveling wave flow meter
AssigneeSperry Corporation
InventorJoannes N. M. de Jong
Life of this patent
Estimating the term…
Abstract
A traveling wave flow meter having a generally wave shaped member which is fabricated from a flexible material and which is disposed within a channel for conducting fluid. The flexible member undulates in response to a flow of fluid through the channel, and the frequency of the undulating flexible member is a function of the volumetric flow rate of the fluid.
Claims5
A positive displacement flow meter comprising:
- (A) means for conducting fluid, having at least first and second walls;
- (B) flexure means disposed longitudinally in said conducting means for undulating between said first and second walls of said conducting means in response to fluid flow within said conducting means, said flexure means having:
- (1) a wavelike strip of flexible material of length X which is forced to occupy a length L, wherein L<X,
- (2) means for holding at least one end of said flexible strip, and
- (3) means for adjusting said holding means within said conducting means;
- (C) means for detecting the frequency of said flexible strip as it undulates between said first and second walls.
3 more elements
A positive displacement flow meter comprising:
- (A) means for conducting fluid, having at least first and second walls;
- (B) flexure means disposed longitudinally in said conducting means for undulating between said first and second walls of said conducting means in response to fluid flow within said conducting means, said flexure means having:
- (1) a wavelike strip of flexible material having a shape comprised of at least one full wave,
- (2) means for holding at least one end of said flexible strip, and
- (3) means for adjusting said holding means within said conducting means;
- (C) means for detecting the frequency of said flexible strip as it undulates between said first and second walls.
3 more elements
Dependencies are inferred from the claim text.