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US4841763: Package seal inspection system

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Filing Information

Inventor(s) Samsuk Kang · Frank M. Bordelon ·
Assignee(s) Westinghouse Electric Corp. ·
Primary Examiner Michael J. Tokar ·
Assistant Examiner Hezron E. Williams ·
Application Number US7156671
Filing date 02/17/1988
Issue date 06/27/1989
Predicted expiration date 02/17/2008
U.S. Classifications /73  · /73  ·
International Classifications G01M 300  ·
Kind CodeA
International Classifications 7349.3;52;49.2 ·
13 Claims, No Drawings


Abstract

A package seal inspection system for detecting leaks in a sealed package which includes a box having a plurality of louvers mounted in a front wall, a plurality of strips mounted behind the louvers in the box, means mounted in the box behind the strips for detecting movement of the strips, means for supporting the package in front of the louvers and means for applying pressure to the top of the package whereby when a leak is present, air in the package is forced out and through the louvers to cause one or more of the strips to move and be detected by the detecting means.

Independent Claims | See all claims (13)

  1. 1. A package seal inspection system for detecting leaks in a sealed package comprising:(a) a box having front and back walls;(b) a plurality of louvers mounted in said front wall;(c) a plurality of strips mounted in said box behind said louvers;(d) means mounted in said box behind said strips for detecting movement of said strips;(e) means for supporting said package in front of said louvers; and(f) means for applying pressure to a surface of said package whereby when a leak is present in said package, air in said package is forced out and through said louvers to cause at least one of said strips to move and be detected by said detecting means.
  2. 9. A package seal inspection system for detecting leaks in a sealed package comprising:(a) a box having front and back walls;(b) a plurality of angularly adjustable louvers mounted in said front wall;(c) a plurality of strips mounted in said box behind said louvers;(d) means mounted in said box behind said strips for detecting movement of said strips, said means comprising a light emitter and a light detector;(e) a conveyor for supporting said package in front of said louvers; and(f) means for applying pressure to a surface of said package whereby when a leak is present in said package, air in said package is forced out and through said louvers to cause at least one of said strips to move and be detected by said detecting means.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US3314283 AJEM LAB INC Fitzpatrick et al. Apr 1967
US3441132 GORDON D BROWNING Browning Apr 1969
US3918293 NEO DYNE IND INC Feigel Nov 1975
US4024956 American Brands, Inc. Cassidy May 1977
US4187718 Toyo Seikan Kaisha, Ltd. Shibasaki Feb 1980
US4313171 Toyo Seikan Kaisha, Ltd. Shibasaki Jan 1982
US4399514 Hitachi Shipbuilding & Engineering Co., Ltd. Hamasaki et al. Aug 1983
US4625545 Testrite, Inc. Holm et al. Dec 1986
US4697452 Prakken Oct 1987

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