Glass manufacturing – Processes – With measuring – sensing – inspecting – indicating – or testing
Patent
1985-09-23
1986-08-19
Kellogg, Arthur
Glass manufacturing
Processes
With measuring, sensing, inspecting, indicating, or testing
65158, 65163, 65DIG13, C03B 940
Patent
active
046067469
ABSTRACT:
The positions of movable side portions (12,14) of a mould are monitored to determine whether the side portions reach their mould-closed condition. Ultrasonic radiation is transmitted from a first source (22) so that it is reflected by a first of the mould portions (12) to a first detector. Ultrasonic radiation is also transmitted from a second source (24) so that it is transmitted from the second mould portion (14) to a second detector. A signal is produced which is indicative of the time taken by the radiation to travel from the first source to the first detector plus the time taken by the radiation to travel from the second source to the second detector and the signal is compared with a standard representing the expected time for the radiation travel when the side portions are in their closed condition.
REFERENCES:
patent: 3180718 (1965-04-01), Wilhelm
patent: 3192027 (1965-06-01), Wilhelm
patent: 3574587 (1971-04-01), Grundy et al.
patent: 4342580 (1982-08-01), Roberson
patent: 4443241 (1984-04-01), Jones
patent: 4557744 (1985-12-01), Fenton et al.
Emhart Industries Inc.
Kellogg Arthur
Moore Arthur B.
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