EXCESSIVE PRESSURE SIGNALLER, METHOD FOR FORMING MEMBRANE PROFILE FOR EXCESSIVE PRESSURE SIGNALLER Russian patent published in 2005 - IPC

FIELD: measuring technologies.

SUBSTANCE: device has body with hermetically mounted elastic membrane made with concentric corrugation, enveloping upper portion of piston, being a rigid center and interacting with adjustable force spring and electro-contact device. Body also has an insert with central aperture, wherein a piston is mounted with concentric space, an elastic membrane is provided with second corrugation, placed above support surface in insert, separating peripheral portion of membrane, hermetically connected to insert, from its central portion, moving with the piston. Insert is made with stepped central aperture, while stepped transition in aperture serves as support surface for piston bottom, and depth of portion of aperture, wherein a piston is mounted, is equal to piston height, while contacting surfaces of insert and piston and membrane are of matching profile. Also, device has piston-insert pairs with matching parameters, but different effective areas, and springs interacting with piston of different rigidity are made replaceable and interchangeable in terms of mounting dimensions. Also described is method for forming membrane profile for device.

EFFECT: higher precision.

2 cl, 3 dwg