초록 ▼

A flowmeter for the quantitative measurement of small rates of flow of fluids (liquids and gases), comprising a hermetically sealed housing having two parallel walls, at least one of these being transparent, a scale being provided on said transparent wall, a thin flexible resilient vane attached by

A flowmeter for the quantitative measurement of small rates of flow of fluids (liquids and gases), comprising a hermetically sealed housing having two parallel walls, at least one of these being transparent, a scale being provided on said transparent wall, a thin flexible resilient vane attached by one of its ends to a sidewall of the housing so as to divide the inner space into two parts, inlet means for the fluid being provided in sidewall connected to one of these parts, outlet means being provided in a sidewall of the other part, the flexible vane having an area protruding into the inner space of the housing equal to essentially the inner cross-section of the housing at the position of the vane when no fluid is flowing. Preferred shapes of the housing are (in side view) a semi-circle, half an ellipse or a triangle.

대표청구항 ▼

A flowmeter for the quantitative measurement of small rates of flow of fluids flowing through the flowmeter, comprising: a hermetically sealed housing having two parallel walls facing each other, at least one of these being transparent; a scale being provided on a transparent wall; a thin vane made

A flowmeter for the quantitative measurement of small rates of flow of fluids flowing through the flowmeter, comprising: a hermetically sealed housing having two parallel walls facing each other, at least one of these being transparent; a scale being provided on a transparent wall; a thin vane made of flexible, resilient material positioned so as to divide the said housing into two parts, one end of said vane being non-rotatably attached to the housing; inlet means being provided in a sidewall of one of these parts; and outlet means being provided in a sidewall of the other part of the housing; said vane being of an area substantially equal to the cross-section of the housing where said vane is located in its rest position, whereby the rate of flow is indicated by the deflection of the edge of the flexible vane due to the bending thereof in the fluid flow.