Measuring and testing – With fluid pressure – Leakage
Patent
1997-07-14
2000-08-22
Larkin, Daniel S.
Measuring and testing
With fluid pressure
Leakage
73 41, 73 454, G01M 334
Patent
active
061054194
ABSTRACT:
An apparatus for inspecting sealed packages of product includes a conveyor belt for receiving the packages. An inspection belt contacts the packages and moves away from the conveyor belt a particular distance depending on whether the packages are properly sealed. When engaged by a package with a good seal, the inspection belt is moved a first distance which causes an indicator carried thereon to send a signal which prevents removal of the good package from the conveyor belt. However, when a leaky bag contacts the inspection belt, the inspection belt is moved a second distance which is insufficient to cause the indicator to send a signal. Consequently, the improperly sealed package is removed from the conveyor belt. The inspection belt may be mounted for linear or pivotal movement upon being contacted by the packages carried by the conveyor belt. In addition, a package engaging member can be used to press the packages prior to passing under the inspection belt to facilitate the discharge of air from leaky packages, e.g., pre-squeezing the packages.
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Bierschenk Pat
Michels John
Larkin Daniel S.
Recot Inc.
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