Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1994-07-15
1996-12-10
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specific condition
340610, 137 6811, 137 6819, 137 6818, 137557, 200 6108, G08B 2100
Patent
active
055834906
ABSTRACT:
A monitoring apparatus for monitoring the condition of a pressure relief rupture disk disposed in a pressure relief conduit is disclosed. The monitoring apparatus includes an electrically conductive rupture disk circuit, spaced apart electrodes affixed to the rupture disk, a rupture disk energizing circuit, a comparison circuit and an alarm circuit. The resistance between the electrodes changes when the disk ruptures. The energizing circuit includes a power source coupled to one of the electrodes. The magnitude of an output signal produced at the other of the two electrodes is dependent upon the resistance between the electrodes. The comparison circuit includes means for generating a selected magnitude output signal depending on the comparison of the magnitudes of the electrode output signal and an adjustable reference signal. The alarm circuit is electrically coupled to the comparison circuit and selectively activates an indicator alarm based on the magnitude of the comparison circuit output signal.
REFERENCES:
patent: 3770918 (1973-11-01), Fortmann
patent: 3902515 (1975-09-01), Douglas et al.
patent: 3936621 (1976-02-01), Palin et al.
patent: 4270560 (1981-06-01), Kearney
patent: 4301938 (1981-11-01), Wood et al.
patent: 4342988 (1982-08-01), Thompson et al.
patent: 4372334 (1983-02-01), Paul, Jr.
patent: 4408194 (1983-10-01), Thompson
patent: 4464936 (1984-08-01), McIntire et al.
patent: 4951697 (1990-08-01), Fritts
patent: 4978947 (1990-12-01), Finnegan
patent: 5155471 (1992-10-01), Ellis et al.
patent: 5313194 (1994-05-01), Varos
Brochure from Oklahoma Safety Equipment Company entitled "OSECO.RTM. Burst Disk Alarm System," dated 1989.
Excerpt from SIGRI GmbH brochure entitled "SIGI Combats Corrosion," dated Jul. 1987.
Excerpt from Kearney Industries Catalog Entitled "Kelonite Graphite Burst Disc," undated.
Excerpt from Carbone Catalog entitled "Bonite.RTM. Impervious Graphite Rupture Disk Bulletin RD-1," undated.
Brochure from Carborundum Kennecott Entitled "Falls.RTM. Impervite.TM. Impervious Graphite Rupture Disks," undated.
Technical Bulletin from Continental Disc Corporation Entitled "The Continental B.D.I..RTM. Alarm System for Rupture Discs, Bulletin 10001" copyright 1983.
Installation Instructions for Continental Disk Corporation Rupture Disk Monitor entitled "Intunsically Safe System Installation," undated.
Installation Instructions for Grafsert Burst Disk Indicator Entitled "Special Grafsert w/Burst Disc Indicator (BDI).RTM. Installation Instructions," undated.
Perusek Kenneth L.
Santos Manuel E.
Hofsass Jeffery
HTV Industries, Inc.
Lieu Julie B.
LandOfFree
Rupture disk monitoring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rupture disk monitoring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rupture disk monitoring apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-426512