Communications: electrical – Systems – Call station
Patent
1975-02-20
1976-08-03
Caldwell, John W.
Communications: electrical
Systems
Call station
73 493, G08B 2100
Patent
active
039732495
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.
REFERENCES:
patent: 3487677 (1970-01-01), Molitor
patent: 3591944 (1971-07-01), Wilcox
patent: 3744210 (1973-07-01), O'Lenick et al.
Kinouchi Yoshitaka
Yokote Takamasa
Caldwell John W.
Myer Daniel
Toyo Aluminium K. K.
LandOfFree
Apparatus for detecting leakage from container and method theref does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for detecting leakage from container and method theref, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for detecting leakage from container and method theref will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1932594