VINCENT P GUNTLOW
Water and Wastewater in Wmstown, MA
License number
Massachusetts 12714
Issued Date
Nov 6, 2015
Expiration Date
Dec 31, 2017
Type
Drinking Water Operator
Address
Address
Wmstown, MA 01267
Professional information
Elapsed Time Indicator And Electrolytic Timer Cell
US Patent:
4100490, Jul 11, 1978
Filed:
Mar 11, 1977
Appl. No.:
5/776517
Inventors:
David B. Peck - Williamstown MA
Vincent T. Guntlow - Williamstown MA
Paul H. Netherwood - Williamstown MA
Vincent T. Guntlow - Williamstown MA
Paul H. Netherwood - Williamstown MA
Assignee:
Diametrics, Inc. - Williamstown MA
International Classification:
G04F 800
US Classification:
324182
Abstract:
An elapsed time indicator includes an electrolytic timing cell in series connection with a resistor, which series circuit may be connected to a D. C. voltage. The cell is comprised of an aluminum can containing a liquid electrolyte with an aluminum anode immersed therein. During operation an aluminum oxide film is grown on the surfaces of the anode, the film thickness and resistance increasing with time. The voltage dropped across the cell of any instant is employed as an indication of the accumulated elapsed time during which the D. C. voltage has been connected to the circuit.