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US 4,061,014 AGranted
Bottle inspection apparatus
OwnerGerald J. Bott, William C. Porter +1inventors
InventorsGerald J. Bott, William C. Porter, Terrance M. Nowak
Life of this patent
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OwnerGerald J. Bott, William C. Porter +1inventors
InventorsGerald J. Bott, William C. Porter, Terrance M. Nowak
Estimating the term…
A bottle inspection apparatus has an inspection stand and sorter for sorting defective plastic bottles from conforming bottles. The inspection stand has an extendible rod. A conical shaped nozzle is mounted at the end of the rod. The conical nozzle seals itself against a bottle aperture when extended for a predetermined amount of time. A low pressure air stream is operably connected to the nozzle and passes through the nozzle and into the inspected bottle. A pressure sensitive switch means is operably connected to the low pressure air stream. A blocking solenoid valve is operably attached to the pressure sensitive switch means and controls a high pressure air stream sorter. The pressure switch is actuated when a sufficiently high pressure is built up within the bottle within the predetermined limited amount of time the conical nozzle is sealing the bottle aperture. The blocking solenoid is deactivated when the pressure sensitive switch means is actuated. The high pressure air stream passes through the solenoid valve when the solenoid valve is deactivated. The air stream sorter, when activated, directs a conforming bottle onto a conveyor. A holding relay is operably attached to the solenoid valve circuit to maintain required information concerning the pressure build-up in an inspected bottle until the bottle is sorted by the high pressure air stream sorter.
An apparatus for inspecting for leaks, dents, and other imperfections a plastic bottle having an open filling aperture, the apparatus comprising:
In a bottle inspecting apparatus having a nozzle which can be positioned in a sealed engagement with a bottle aperture, the bottle molded from plastic, having a bottle neck and aperture at the end of the neck, the aperture having an inwardly extending flange which engages a corresponding ridge in a cap to form a seal with the cap, means for supplying a gas pressure through the nozzle to the interior of an inspected bottle, means for measuring the change in gas pressure within the bottle while in sealed engagement with the nozzle, means coupled to the measuring means for indicating whether the change of pressure within the bottle is greater or less than a predetermined rate whereby the presence of holes, leaks, or other deformities can be detected, means for sorting the bottles into a defective group and conforming group dependent on the sensing of indicating means;
A method for inspecting plastic bottles for leaks, dents, and other imperfections, the method comprising:
Dependencies are inferred from the claim text.