Resumes
Resumes
William Mahieu Phones & Addresses
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18700 Jay Jay, Centralia, MO 65240 (573) 682-3461
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18700 N Jay Jay, Centralia, MO 65240
Work
Position:
Food Preparation and Serving Related Occupations
Education
Degree:
Associate degree or higher
Publications
Us Patents
Full Range Current Limiting Fuse Having High Load Current Carrying Capacity
View pageUS Patent:
41986156, Apr 15, 1980
Filed:
Feb 6, 1978
Appl. No.:
5/875352
Inventors:
William R. Mahieu - Centralia MO
Assignee:
A. B. Chance Company - Centralia MO
International Classification:
H01H 8504
H01H 8512
H01H 8512
US Classification:
337162
Abstract:
A current limiting fuse is provided with a number of discrete current limiting elements coupled electrically in parallel between a pair of conductive terminals, and a fused gap assembly in series with each current limiting element whereby full range fault current protection is provided by the fuse. Under the influence of high range fault currents, the current limiting elements operate collectively to quickly clear the fault, while low fault currents are interrupted by fusing of the fused gaps to present a plurality of parallel arc gaps in the elements, which parallel gaps function in turn to sequentially distribute the full fault to each element resulting in successive interruption by the elements and ultimate clearing of the low range fault. In a second form of the invention shiftable contact sets in each element are operably coupled with a low fault current responsive device to create the arc gaps required for sequential operation of the current limiting elements.
Supersonic Expulsion Fuse
View pageUS Patent:
49049771, Feb 27, 1990
Filed:
Feb 14, 1989
Appl. No.:
7/310794
Inventors:
William R. Mahieu - Centralia MO
International Classification:
H01H 8542
US Classification:
337281
Abstract:
This invention provides a supersonic expulsion fuse for interrupting fault currents in high voltage alternating current networks. It creates an arc interruption region with a long length of supersonic turbulent flow and little or no subsonic plasma. This increases the arc interrupting capability against both thermal and dielectric arc reignitions. Therefore, the transient recovery voltage the network applies across the interrupted arc after current-zero may be increased in both frequency and peak values, relative to present-art expulsion fuses. It may be applied on power distribution systems as a power fuse in enclosures or overhead where the said system transient recovery voltages exceed the capabilities of conventional distribution cutouts.
Arc Severing And Displacement Method And Apparatus For Fault Current Interruption
View pageUS Patent:
49580523, Sep 18, 1990
Filed:
Dec 18, 1989
Appl. No.:
7/454705
Inventors:
William R. Mahieu - Centralia MO
International Classification:
H01H 3370
US Classification:
200148R
Abstract:
Current interrupters for high voltage networks are disclosed which sever the post-zero arc plasma, connecting a pair of arc terminating electrodes, near an upstream wall electrode and displace the severed plasma with a high dielectric strength gas, gaining dielectric strength faster than the transient network voltage recovers across the lengthening plasma discontinuity. Use of a high enthalpy dielectric displacement gas, created at the time of load or fault current interruption, makes plasma severing and displacement possible. High enthalpy displacement gas mixtures are preferably produced by combustion of solid propellants and/or ablation of solids rich in hydrogen.
High Speed Ratio, Dual Fuse Link
View pageUS Patent:
41211871, Oct 17, 1978
Filed:
Jun 21, 1977
Appl. No.:
5/808656
Inventors:
William R. Mahieu - Centralia MO
Assignee:
A. B. Chance Company - Centralia MO
International Classification:
H01H 7110
Ho1H 7120
Ho1H 7120
US Classification:
337171
Abstract:
A relatively low cost dual element fuse link including a meltable solder junction has a pair of thermally insulated, serpentine, fusible elements supported on opposite sides of the junction for increasing the heat transferred to the junction by the elements in response to a given current carried by the link such that the junction will be caused to melt at lower current values thereby providing the link with an increased speed ratio. A pair of cylindrical porcelain insulators disposed along respective serpentine elements present the desired thermal insulation as well as provide structural stability to the elements precluding deformation of their serpentine shape when the fuse link is under tension as in a distribution system cutout. The serpentine shape of the elements presents an increased element length which in turn reduces the temperature gradient along the elements thereby reducing axial conductive heat loss from the ends of the elements remote from the solder junction.
Biarch-Framing Member For Arched Structures
View pageUS Patent:
56553471, Aug 12, 1997
Filed:
Apr 28, 1995
Appl. No.:
8/430576
Inventors:
William Ray Mahieu - Centralia MO
International Classification:
E04B 132
E04C 338
E04C 338
US Classification:
52639
Abstract:
A biarch consists of two coplanar arches, curved in the same direction and radially spaced with cross ties having shear rigidity in planes perpendicular to the cross section areal center curve of the arch pair. End ties resist relative tangential arch displacements. Biarch framing members are strong, stiff, durable and economical structural members for framing aesthetically pleasing, clear span arched structures capable of withstanding hurricane winds and mountain snows. The most efficient materials for constructing biarch framing members are hardwoods, aluminum and steel. Biarch frames spanning up to fifty feet can be assembled or disassembled by one or two persons using common hand tools.
High Continuous Current Capacity Oil Expulsion Fuse Having Multiple, Unidirectionally Vented, Sealed Bores
View pageUS Patent:
42209412, Sep 2, 1980
Filed:
Oct 13, 1978
Appl. No.:
5/951108
Inventors:
William R. Mahieu - Centralia MO
Charles A. Popeck - Centralia MO
Charles A. Popeck - Centralia MO
Assignee:
A. B. Chance Company - Centralia MO
International Classification:
H01H 8514
H01H 8502
H01H 8502
US Classification:
337250
Abstract:
A high voltage oil expulsion fuse having multiple fuse wire bores which vent into opposed chambers which communicate with the oil medium for convective flow of oil through the bores during normal operation is provided wherein a pressure sensitive valve associated with one of the chambers allows only unidirectional venting of deionizing gases from the fuse when a fault or overload occurs causing sequential melting of the fusible elements in respective bores. Oil derived gases generated by the last to melt fusible element vent in both directions from the corresponding bore and the pressure thereof causes the valve to close forcing such gases to flow through the remaining bores to assure complete evacuation of conductive material from all bores upon fuse operation. In this manner, interruption against a high rate of rise of recovery voltage is assured and delayed failure of the fuse under normal frequency recovery voltage is also prevented. Only a partial segment of each fuse wire is fusible while the remainder is configured to enhance complete evacuation of conductive material from the bores by oil-derived arc generated gases upon operation of the fuse.
High Continuous Current Capacity Oil Expulsion Fuse
View pageUS Patent:
42052955, May 27, 1980
Filed:
Oct 13, 1978
Appl. No.:
5/951250
Inventors:
William R. Mahieu - Centralia MO
International Classification:
H01H 8514
H01H 8502
H01H 8502
US Classification:
337250
Abstract:
An oil expulsion fuse has multiple rupture-resistant fuse wire arc bores for providing fault current protection in high voltage distribution circuits in the 25-35 KV range. In preferred forms, the fuse has a Teflon core defining three discrete, small diameter cylindrical bores, each containing a respective fuse wire, whereby sufficient deionizing gas flow is generated upon fusing of the wires to effectively extinguish arcs formed in the bores, even in the face of high recovery voltage rates associated with distribution voltages above 15 KV. The multiple bores communicate with common chambers at respective ends thereof which are vented to allow connective oil flow through the fuse during normal operation. One chamber has a larger effective vent area than the other and the chambers at opposite ends of the fuse intercommunicate so that upon sequential melting of the fuse wires which occurs during fault interruption, the greater resistance to gas expulsion at one end of the fuse than the other causes gas to be directed down through the bores to prevent arc restrike.