Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Reexamination Certificate
2011-01-25
2011-01-25
Enad, Elvin G (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
C335S203000, C335S261000, C335S262000
Reexamination Certificate
active
07876187
ABSTRACT:
With variable airgap reluctance actuators problems arise due to the relationship between actuator mass and displacement range. By providing opposed surfaces in the actuator stator core and armature which have undulations typically in the form of grooves, slots and projections, a greater displacement range can be achieved whilst maintaining performance above a rated displacement force characteristic. In such circumstances by establishing a necessary rated displacement force characteristic, an actuator can be tailored and designed to meet that characteristic over a desired displacement range which has significantly less mass in comparison with a prior actuator arrangement having flat surfaces.
REFERENCES:
patent: 750132 (1904-01-01), Timmis et al.
patent: 1436639 (1922-11-01), Bindschedler
patent: 2076858 (1937-04-01), Morgenstern
patent: 2407603 (1946-09-01), Derungs
patent: 2407963 (1946-09-01), Persons
patent: 2869048 (1959-01-01), Reed
patent: 2892134 (1959-06-01), Kruithof et al.
patent: 2930945 (1960-03-01), Weathers et al.
patent: 3622819 (1971-11-01), Koehler
patent: 3805204 (1974-04-01), Petersen
patent: 4216454 (1980-08-01), Ohtani et al.
patent: 4569504 (1986-02-01), Doyle
patent: 4577174 (1986-03-01), Lemmer
patent: 4604600 (1986-08-01), Clark
patent: 4633209 (1986-12-01), Belbel
patent: 5565832 (1996-10-01), Haller et al.
patent: 5752308 (1998-05-01), Maley et al.
patent: 5781090 (1998-07-01), Goloff et al.
patent: 6308667 (2001-10-01), Tsai et al.
patent: 6737946 (2004-05-01), Seale et al.
patent: 0 204 293 (1986-12-01), None
patent: 0 551 790 SP (1943-03-01), None
patent: 2003188014 AB (2003-07-01), None
Gibson Sarah
Jewell Geraint W
Enad Elvin G
Manelli Denison & Selter PLLC
Melcher Jeffrey S.
Rolls-Royce plc
Talpalatskiy Alexander
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