Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 334/80
Name: Tuners > Variable capacitor tuned > With variable spacing between plates
Description: Subject matter in which the variable capacitor is so constructed that the spacing between the plates of the capacitor may be varied to thus change the capacitance of the capacitor as, for example, by placing a series of resiliently biased stacked plates under a variable pressure.

Patents under this class:

Patent Number Title Of Patent Date Issued
8598969 PCB-based tuners for RF cavity filters Dec. 3, 2013
6701779 Perpendicular torsion micro-electromechanical switch Mar. 9, 2004
4897624 Unitary capacitance trimmer Jan. 30, 1990
4612668 FM wireless transmitter Sep. 16, 1986
4467393 Trimming capacitor Aug. 21, 1984

  Recently Added Patents
Simultaneous wafer bonding and interconnect joining
Method for determining the local position of at least one mobile radio communication device based on predetermined local positions of adjacent radio communication devices, associated radio com
Mobile terminal and method for changing page thereof
Color stable manganese-doped phosphors
Apparatus and method of managing radio bearer in wireless communication system
Polarization-coupled ferroelectric unipolar junction memory and energy storage device
Apparatus and method for transferring a data signal propagated along a bidirectional communication path within a data processing apparatus
  Randomly Featured Patents
Disposable toothbrush
Power on certification method for personal computer and power on certification system thereof
Temperature-type expansion valve
Components and catalysts for the polymerization of olefins
Compositions and their uses directed to huntingtin
Device for protecting oxygen sensor of motocycle
Biochemical treatment by microorganic method
System and method for testing integrated circuits connected together
Dishwasher cycle pulsing pump out of collection chamber
Efficient and scalable cyclic redundancy check circuit using Galois-field arithmetic