Measuring and testing – With fluid pressure – Dimension – shape – or size
Patent
1976-11-03
1978-05-23
Queisser, Richard C.
Measuring and testing
With fluid pressure
Dimension, shape, or size
73 494, G01M 302
Patent
active
040903940
ABSTRACT:
Method and apparatus are provided for producing a stress-strain type curve for evaluating the functionality of a thermoplastic bottle. The method generally comprises the steps of internally pressurizing a thermoplastic bottle with an incompressible fluid by relative movement of a piston and a cylinder, sensing the pressure of said fluid and sensing the relative movement of said piston and cylinder as said bottle is being pressurized by such movement, and graphically and automatically recording said sensed pressure and said sensed relative movement as said bottle is being pressurized. The technique is rapidly performed with high sensitivity and automatically produces a curve in which one axis is pressure related and another axis is relatable to the deformation of the bottle.
REFERENCES:
patent: 2967427 (1961-01-01), LeBlanc
patent: 3230760 (1966-01-01), Fryer, Jr. et al.
patent: 3555881 (1971-01-01), Ayers
patent: 3580050 (1971-05-01), Waldron
patent: 3916673 (1975-11-01), Gass et al.
patent: 3955402 (1976-05-01), Harvill
Herman James N.
Kaczorowski David M.
Holler E. J.
Lynch Charles S.
Owens--Illinois, Inc.
Queisser Richard C.
Roskos Joseph W.
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