Abstract The disclosure of the invention is a ridge containing control chamber of a diaphragm-type pneumatic logic element having two plates stacked in facing relation and an interposed diaphragm, said control chamber comprising a supply pressure admission chamber recess formed in the face of one plate at one side of the diaphragm and a complementary ridge containing chamber recess with interconnecting channels to said ridge formed in the adjacent face of the other plate at the opposite side of the interposed diaphragm, in which the improvement is a control ridge, having a concaved curvature along its length to give more area for flow in the ''''ON'''' condition, and an upward taper to a sharp edge with an abrupt dropoff in the direction of flow which allows air flow to force the diaphragm away from the ridge to improve flow also in the ''''ON'''' condition.
Inventors
👤 George Napoleon Levesque
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-04 15:30
CPC Classifications
F; F15; F15C; F15C3/00; F15C3/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
94 words
In a pneumatic logic element having two plates disposed in opposed facing relation, said plates having complementary pairs of chamber recesses and interconnnecting channel recesses formed in said opposed faces providing a flow channel across said chamber recesses, a flexible diaphragm interposed between said plates, and means for holding the two plates and interposed diaphragm together, the combination of a control ridge disposed across said flow channel, having a concaved curvature along its length, and having the edge thereof tapered upwardly to a sharp edge with an abrupt dropoff in the direction of flow.
Claim 2
Dependent Claim
94 words
In a pneumatic logic element having two plates disposed in opposed facing relation, said plates having complementary pairs of chamber recesses and interconnnecting channel recesses formed in said opposed faces providing a flow channel across said chamber recesses, a flexible diaphragm interposed between said plates, and means for holding the two plates and interposed diaphragm together, the combination of a control ridge disposed across said flow channel, having a concaved curvature along its length, and having the edge thereof tapered upwardly to a sharp edge with an abrupt dropoff in the direction of flow.
Claim 3
Dependent Claim
34 words
A pneumatic logic element according to claim 1 in which the concaved edge is formed with a taper extending upwardly in the direction of flow from one side to the other of the ridge.