초록 ▼

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 extende

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.

대표청구항 ▼

An apparatus for inspecting for leaks, dents, and other imperfections a plastic bottle having an open filling aperture, the apparatus comprising: a nozzle shaped to seal against the bottle aperture and having means providing a sealing surface with the bottle aperture when the nozzle is in engagement

An apparatus for inspecting for leaks, dents, and other imperfections a plastic bottle having an open filling aperture, the apparatus comprising: a nozzle shaped to seal against the bottle aperture and having means providing a sealing surface with the bottle aperture when the nozzle is in engagement with the aperture, the nozzle further having a passage therethrough; means for supplying gas at a first predetermined pressure to the nozzle air passage so that air can be supplied to the bottles when the nozzle is in sealing engagement with the apertures thereof; means for measuring the rate at which the pressure builds up in a bottle to a second predetermined pressure above the first predetermined pressure when the nozzle is in sealing engagement with the aperture thereof; and means coupled to the measuring means for indicating whether the rate at which the pressure buildup in the bottle is as great as or below a predetermined rate; whereby the presence of holes, as well as dents and deformations in the bottle, can be detected with the inspecting apparatus.