Electromagnetic sensor systems

Details Electromagnetic sensor systems Electromagnetic sensor systems

2007-11-15

2010-10-19

LeDynh, Bot L (Department: 2858)

Electricity: measuring and testing

Magnetic

Displacement

C324S207240

Reexamination Certificate

active

07816911

ABSTRACT:
A variable inductance position sensor is described. The sensor includes a housing that is typically cylindrical in shape. The housing includes an open end and a closed end forming a cavity therein. A coil support member is affixed at one end to the closed end of the housing, or the coil support member may itself seal the housing at the closed end. The coil support member includes a coil assembly that includes a coil both of which are rigidly affixed to the coil support member. In this way, the coil is maintained in a fixed and predetermined orientation with respect to the housing. The combination of housing, coil support member and coil assembly and the coil forms an inner assembly. The coil support member includes a bore that forms a central annular region and the coil support member then forms an outer annular region as well. In addition, the housing may also include a passageway to allow the passage of lead wires from the coil assembly to the exterior of the sensor. The sensor further includes an actuator that includes inner surfaces on the outer and inner projection surfaces, respectively.

REFERENCES:
patent: 2452156 (1948-10-01), Schover
patent: 3350660 (1967-10-01), Engdahl et al.
patent: 3397364 (1968-08-01), Crandall
patent: 3461400 (1969-08-01), Koda
patent: 3521158 (1970-07-01), Morrow et al.
patent: 3609580 (1971-09-01), Thompson et al.
patent: 3619805 (1971-11-01), Bean
patent: 3701041 (1972-10-01), Adler et al.
patent: 3732503 (1973-05-01), Rapp et al.
patent: 3735244 (1973-05-01), Gumtau et al.
patent: 3756081 (1973-09-01), Young
patent: 3760392 (1973-09-01), Stich
patent: 3818369 (1974-06-01), Brocker
patent: 3891918 (1975-06-01), Ellis
patent: 4068189 (1978-01-01), Wilson
patent: 4284961 (1981-08-01), Landau
patent: 4310807 (1982-01-01), McKee
patent: 4618835 (1986-10-01), Wilson
patent: 4663542 (1987-05-01), Buck et al.
patent: 4685678 (1987-08-01), Frederiksen
patent: 4809742 (1989-03-01), Grau
patent: 5079502 (1992-01-01), Rogacki et al.
patent: 5103172 (1992-04-01), Stoll
patent: 5142226 (1992-08-01), Sakamoto et al.
patent: 5172298 (1992-12-01), Shimizu et al.
patent: 5279163 (1994-01-01), D'Antonio et al.
patent: 5420507 (1995-05-01), Laskowski
patent: 5767672 (1998-06-01), Guichard et al.
patent: 6215365 (2001-04-01), Kurkovskiy
patent: 6335619 (2002-01-01), Schwab et al.
patent: 6532834 (2003-03-01), Pinto et al.
patent: 6639759 (2003-10-01), Inoguchi et al.
patent: 6703831 (2004-03-01), Keely et al.
patent: 6731119 (2004-05-01), Haffner et al.
patent: 7046018 (2006-05-01), Toda et al.
patent: 2004/0056748 (2004-03-01), Masaki et al.
patent: 06242199 (1994-09-01), None
patent: WO 2007/026799 (2007-03-01), None
International Search Report dtd Feb. 12, 2009 for PCT/US07/84798. Applicant: Digisensors, Inc.

Affiliated with

Also associated with

Rating

Electromagnetic sensor systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electromagnetic sensor systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic sensor systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4210822