The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Jan. 12, 2017
Antrad Medical Ab, Kista, SE;
Antrad Medical AB, Finlandsgatan, SE;
Abstract
A heater () for thawing/warming a perishable dielectric load () contains: a heating chamber () for holding the perishable dielectric load () during thawing/warming thereof, a transmitter unit () generating electromagnetic energy (RFs) having predefined spectral properties, an emitting element () producing an electromagnetic field in the perishable dielectric load () based on the electromagnetic energy (RFs) from the transmitter unit (), a tuning circuit () adjusting an overall impedance (Z) of the emitting element (), the tuning circuit () and the heating chamber () so that the overall impedance (Z) matches an output impedance of the transmitter unit (), and a control unit () measuring the overall impedance (Z) during thawing/warming of the perishable dielectric load () and repeatedly generating at least one control signal (Tn) causing the tuning circuit () to adjust the overall impedance (Z) to match the output impedance of the transmitter unit (). The control unit () sets an initial value of the at least one control signal (Tn) based on an estimate (Vm) of a volume (V) of the perishable dielectric load ().