Bottle tester
AssigneeHartness International, Inc.
InventorThomas S. Hartness
Life of this patent
Estimating the term…
Abstract
A tester for testing the physical characteristics of bottles such as the degree of stretch of a plastic bottle and the pressure required for rupturing a glass bottle. The apparatus includes an elongated cylinder having a bore extending therethrough. A piston is threadably carried within the bore so that when the lower end of the cylinder is secured to the top portion of a bottle, the piston is in axial alignment with the bottle. Upon feeding the piston into the bottle filled with an incompressible fluid, pressure is exerted on the interior of the bottle stretching or exploding the bottle depending on the test being performed.
Claims5
A hand-held apparatus for manually testing the physical characteristics of the wall of a bottle by pressurizing fluid carried therein, said bottle having a main body with a neck integral therewith which terminates in an opened top, said apparatus comprising:
- an elongated cylinder;
- a bore extending axially through said elongated cylinder;
- threads carried on a portion of said cylinder surrounding said bore;
- a piston carried in said elongated bore and extending out an upper end of said cylinder;
- threads carried on a portion of said piston meshing with said threads carried on a portion of said cylinder surrounding said bore;
- means for attaching a lower end of said cylinder to the top of said bottle with said piston being axially aligned with the top of said bottle;
- seal means sealing said cylinder to the top portion of said bottle;
- and
- hand operated means for rotating said piston feeding a lower end of said piston into said bottle gradually pressurizing said fluid as said piston is inserted into said bottle;
- whereby the effect of pressure on the wall of said bottle can be monitored.
Dependencies are inferred from the claim text.