Electricity: magnetically operated switches – magnets – and electr – Permanent magnet-actuated switches
Reexamination Certificate
2006-04-11
2006-04-11
Donovan, Lincoln (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Permanent magnet-actuated switches
C377S099000
Reexamination Certificate
active
07026898
ABSTRACT:
A control device including a switch with a ferromagnetic armature moving between a first position and a second position. The armature actuates a plunger that causes the switch to snap from an open position to a closed position. An energy-storing member may be positioned adjacent the ferromagnetic armature, the energy-storing member moving a magnet between an attracting position and a non-attracting position based on a temperature of an environment surrounding the energy-storing member. When the energy-storing member positions the magnet in the attracting position, the magnet causes the armature to snap from the first position to the second position, thereby actuating the plunger and causing the switch to snap from the open position to the closed position. A ferromagnetic backstop may also be positioned adjacent the magnet and coupled to the energy-storing member to hold the magnet and the energy-storing member in the non-attracting position.
REFERENCES:
patent: 1749392 (1930-03-01), Penn
patent: 1867756 (1932-07-01), Penn
patent: 2539259 (1951-01-01), McCabe
patent: 2641664 (1953-09-01), Knutson
patent: 2729719 (1956-01-01), Kronmiller
patent: 2782278 (1957-02-01), Peters
patent: 3171003 (1965-02-01), Larsen
patent: 3190988 (1965-06-01), Graham et al.
patent: 3222474 (1965-12-01), Fasola, Jr.
patent: 3573698 (1971-04-01), Mitick
patent: 3593236 (1971-07-01), Beck
patent: 3656082 (1972-04-01), Beck
patent: 3750068 (1973-07-01), Hallin
patent: 3869619 (1975-03-01), Camillo
patent: 3905003 (1975-09-01), Rosenberg et al.
patent: 4243967 (1981-01-01), Frank
patent: 4266211 (1981-05-01), Ulanet
patent: 4274072 (1981-06-01), Gustafson
patent: 4349807 (1982-09-01), Gustafson
patent: 4414520 (1983-11-01), Ruuth
patent: 4748432 (1988-05-01), Yamada
patent: 5148142 (1992-09-01), Buckshaw et al.
patent: 5166657 (1992-11-01), Buckshaw et al.
patent: 5194842 (1993-03-01), Lau et al.
patent: 5262752 (1993-11-01), Truong et al.
patent: 6040749 (2000-03-01), Youngner et al.
patent: 6246305 (2001-06-01), Youngner et al.
patent: 6707371 (2004-03-01), Ableitner et al.
patent: 6720852 (2004-04-01), Farrey et al.
patent: 6741158 (2004-05-01), Engler et al.
General Technical Bulletin #13—Low Energy Switching; Honeywell Inc.—Micro Switch Sensing and Control.
Honeywell Inc., “Thermostats T87F”, publication, Form No. 60-2222-2, S.M. Rev. 4-86.
Honeywell Inc., “T87F Universal Thermostat”, publication, Form No. 60-0830-3, S.M. Rev. 8-93.
Exhibits A-E Photographs of a Hunter Thermostat.
Exhibits F & G Photographs of an Evcon Thermostat, Model 7670/368.
Exhibit H Photographs of a Robertshaw Thermostat, Exhibit H Model 255/4-4, Exhibit I Model 6E 311T76A1B55.
Exhibit I Photographs of GE Thermostat, Model 3AAT76A1B55.
Exhibits J & K Photographs of a White-Rodgers Thermostat, Model ID56-347.
Exhibits L-O Photographs of a Columbus Electric Thermostat.
Exhibits P-T Photographs of a Honeywell Thermostat, Model T87F.
Exhibits U-Z Photographs of a Honeywell Thermostat, Model T810D.
Exhibits AA-GG Photographs of a Robertshaw Thermostat, Model TX400.
Exhibits HH-KK Photographs of a White-Rodgers Thermostat, Model 1C30-321.
Exhibits LL-OO Photographs of a White-Rodgers Thermostat, Model 1C30-333.
Exhibits PP-SS Photographs of a Robertshaw Thermostat, Model 9204H.
Exhibits TT-WW Photographs of a White-Rodgers Thermostat, Model 1C20.
White-Rodgers, Installation Instructions for Champagne Astro*Stat, Part No. 37-1759-2.
Robertshaw, Installation Guide for Series 9200 Mercury-Free Mechanical Thermostats, Part No. 34790.
Robertshaw, Installation Data for TX400 Heating/Cooling 24 Volt Thermostat (CM260), Form No. 1-004J.
Robertshaw, Installation Data for DA490-400 Subbase Uni-Kit, Form No. 1-295J.
Honeywell, Installation Instructions for T810C, D; TS810B, Heating or Cooling Thermostats, Form No. 69-0219-9.
White-Rodgers, Installation Instructions for Heating only 1C20 and Heating and Cooling 1C26, Part No. 37-6335A.
Ableitner Jason L.
Nelson Marvin D.
Ansems Gregory M.
Donovan Lincoln
Honeywell International , Inc.
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