The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 1976
Filed:
Feb. 20, 1975
Takamasa Yokote, Kashihara, JA;
Yoshitaka Kinouchi, Yao, JA;
Toyo Aluminium K. K., Osaka, JA;
Abstract
An apparatus for detecting leakage of water molecules through a defective portion, if any, of a container which comprises a vessel having a flange at the periphery thereof and a lid heat sealed to said flange and is filled with water-contained materials, such as foodstuffs, thereby detecting said defective portion, said apparatus comprising a chamber for receiving said container such that an enclosed space is formed along and in the vicinity of said sealed flange portion, partitions provided on said chamber for partitioning said enclosed space into a plurality of enclosed space cells, a plurality of humidity sensitive devices each provided individually associated with said enclosed space cells, a vacuum tank connected to said enclosed space cells for exhausting the air therefrom, a vacuum pump connected to said vacuum tank, and an electric circuit connected to said humidity sensitive devices for threshold detecting the outputs therefrom. Division of said enclosed space into a plurality of cells and humidity detection in the respective cells enhances accuracy of the abovementioned detection.