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.

Date of Patent:
Aug. 25, 1987

Filed:

Sep. 16, 1985
Applicant:
Inventors:

Alfred Schaal, Massy, FR;

Philippe LaHarrague, Boulogne, FR;

Rene Denis, Brebbia, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09F / ;
U.S. Cl.
CPC ...
340572 ; 73595 ; 73627 ;
Abstract

System for monitoring containers with ultrasonic seals. According to the invention the seal is duplicated and comprises a transmitting transducer and a receiving transducer. The exciting signal is a voltage step applied to the transmitting transducer and the circuit able to supply said step is directly connected to the transmitting transducer without a connecting cable. Application to the monitoring of containers containing dangerous products, precious materials, documents, etc.


Find Patent Forward Citations

Schaal, Alfred. (1987). System for monitoring containers with ultrasonic seals using autonomous (U.S. Patent No. 4689612). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4689612

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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