Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Distributive type parameters
Reexamination Certificate
2007-03-06
2007-03-06
Hirshfeld, Andrew H. (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Distributive type parameters
C324S643000, C324S644000
Reexamination Certificate
active
10479324
ABSTRACT:
A method and an apparatus is described to measure at least one physical parameter of a substance such as moisture and salt content. This is done by transmitting a microwave beam through the material to be measured and detect only a reflection of a predetermined polarity of the transmitted waves. To accomplish this a polarizing plate is used so that only cross-polarized microwaves, which pass through the substance are detected and the co-polar reflections from surrounding structures are excluded. The object can either be moving as on a conveyer belt or in a rest position.
REFERENCES:
patent: 3247508 (1966-04-01), Bradford et al.
patent: 3783373 (1974-01-01), Jawor
patent: 4052666 (1977-10-01), Fletcher et al.
patent: 4344030 (1982-08-01), Anderson et al.
patent: 4479128 (1984-10-01), Brunner et al.
patent: 4599623 (1986-07-01), Havkin et al.
patent: 4707652 (1987-11-01), Lowitz
patent: 4745361 (1988-05-01), Nees et al.
patent: 4757514 (1988-07-01), Hoag
patent: 4818930 (1989-04-01), Flemming et al.
patent: 4947128 (1990-08-01), Hatton et al.
patent: 5315258 (1994-05-01), Jakkula et al.
patent: 5497100 (1996-03-01), Reiser et al.
patent: 5781018 (1998-07-01), Davidov et al.
patent: 5959594 (1999-09-01), Wu et al.
patent: 6100703 (2000-08-01), Davidov et al.
patent: 6163158 (2000-12-01), Moeller et al.
patent: 6172510 (2001-01-01), Liu
patent: 6452404 (2002-09-01), Moeller et al.
patent: 6529154 (2003-03-01), Schramm et al.
patent: 6531881 (2003-03-01), Cordes et al.
patent: 1506387 (1989-09-01), None
patent: WO 8502266 (1985-05-01), None
patent: WO 0102841 (2001-01-01), None
patent: WO 0214847 (2002-02-01), None
International Search Report; PCT/IS02/00011; Aug. 28, 2002; Asa Malm.
Abstract; SU 1 223 028; Apr. 7, 1986.
Jonsson Olafur H.
Sangster Alan John
Thorgeirsson Jon Thor
Fish & Richardson P.C.
Hirshfeld Andrew H.
Intelscan Orbylgjutaekni enf.
Kramskaya Marina
LandOfFree
Apparatus and method for microwave determination of at least... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for microwave determination of at least..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for microwave determination of at least... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3764565