Measuring and testing – Speed – velocity – or acceleration – With means for retaining reading
Patent
1975-11-18
1976-10-19
Woodiel, Donald O.
Measuring and testing
Speed, velocity, or acceleration
With means for retaining reading
G01L 704
Patent
active
039864006
ABSTRACT:
A direct-acting pressure sensor operable in the low-pressure range and including a sub-assembly constituted by inner and outer concentrically-arranged curved springs anchored at one end in a socket to define a pressure region therebetween, within which is disposed a flexible bladder forming an internal pressure chamber communicating with the socket, the springs being joined at their free end to form a tip whose travel is indicative of the pressure of fluid applied to the sensor through said socket, the range of the sensor being adjustable by means of a set screw adapted to engage the outer spring and to shift the theoretical pivot point of the sub-assembly.
REFERENCES:
patent: 1421501 (1922-07-01), Kraft et al.
patent: 3603153 (1971-09-01), Schmans
patent: 3732733 (1973-05-01), Schmans
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