Patents
Patents for H01G 5 - Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture (1,769)
04/1998
04/15/1998EP0741906A4 Low cost, center-mounted capacitive pressure sensor
03/1998
03/18/1998CN1176473A Variable capacitor and LC composite modules employing the same
01/1998
01/29/1998DE19730140A1 Variable capacitor for LC module
12/1997
12/09/1997US5696662 Electrostatically operated micromechanical capacitor
11/1997
11/26/1997CN2268982Y Rotary mercury capacitor
10/1997
10/08/1997CN1161550A Method of mfg. metal rotor for trimmer capacitor
10/08/1997CN1161549A Dielectric unit mfg. method
08/1997
08/12/1997US5657006 Capacitance type rotation angle sensor
07/1997
07/31/1997WO1997007517A3 Electrostatically operated, micromechanical capacitor
07/24/1997DE19700708A1 Production of metal rotor for trimming capacitor
07/01/1997US5644349 Mechanical capacitor
06/1997
06/03/1997US5636099 Variable capacitor formed by multilayer circuit board
04/1997
04/08/1997US5619061 Micromechanical microwave switching
02/1997
02/27/1997WO1997007517A2 Electrostatically operated, micromechanical capacitor
02/27/1997CA2219945A1 Electrostatically operated, micromechanical capacitor
02/26/1997EP0759628A1 Variable capacitor
02/26/1997CN2248384Y Adjustable block shunt capacitor
01/1997
01/29/1997CN1141688A Low cost center-mounted capacitive pressure sensor
12/1996
12/31/1996US5590015 Variable capacitor having safety end switches disposed on an adjustable screw at end face of capacitor housing
12/11/1996EP0645005B1 Aluminosilicate glass pressure transducer
11/1996
11/13/1996EP0741906A1 Low cost, center-mounted capacitive pressure sensor
11/06/1996EP0741398A2 Variable capacitor
10/1996
10/02/1996EP0735553A1 Multiturn adjustable capacitor for mounting on a support surface
09/1996
09/17/1996US5557495 Variable capacitor and method
08/1996
08/07/1996EP0725408A2 Variable capacitor
08/06/1996US5542300 Low cost, center-mounted capacitive pressure sensor
06/1996
06/11/1996US5526172 Microminiature, monolithic, variable electrical signal processor and apparatus including same
05/1996
05/22/1996EP0713230A1 Variable capacitor
05/22/1996CN1122945A Variable capacitor
05/21/1996US5519565 Electromagnetic-wave modulating, movable electrode, capacitor elements
05/01/1996EP0709911A2 Improved switches
02/1996
02/13/1996US5491604 Q-controlled microresonators and tunable electronic filters using such resonators
01/1996
01/24/1996EP0693759A1 Rotary variable capacitor
01/17/1996CN1115067A Microminiature, monolithic, variable electrical device and apparatus including same
12/1995
12/26/1995US5477727 Capacitive level sensor
11/1995
11/01/1995CN2211647Y Multiple capacitors
10/1995
10/24/1995US5461535 Variable capacitor
07/1995
07/27/1995WO1995020230A1 Low cost, center-mounted capacitive pressure sensor
07/27/1995CA2181800A1 Low cost, center-mounted capacitive pressure sensor
06/1995
06/13/1995US5424906 Variable capacitor
06/13/1995US5423930 Method of providing a sintered ceramic body having a concave portion
06/01/1995DE4442044A1 Adjustable capacitor operated by tool inserted through hole in rotor
04/1995
04/05/1995EP0646269A1 Electromagnetic-wave modulating, movable electrode, capacitor elements
02/1995
02/01/1995EP0637042A2 Device for affecting an input signal
01/1995
01/28/1995CA2128769A1 Microminiature, monolithic, variable electrical device and apparatus including same
12/1994
12/22/1994DE4315259C1 Contactless (non-contacting) rotary transmission coupling
10/1994
10/27/1994DE4414529A1 Capacitive rotation angle transducer
09/1994
09/21/1994CN2177992Y Porcelain tube type micro-regulating capacitor
07/1994
07/06/1994EP0604569A1 Monolithic capacitor with variable capacitance
06/1994
06/23/1994WO1994014176A1 Q-controlled microresonators and tunable electronic filters using such resonators
06/16/1994DE4242230A1 Sensor arrangement for detecting lateral impact on vehicle - contains capacitive sensor element with one deformable plate and deformable dielectric
05/1994
05/31/1994US5317351 Position detecting device
05/24/1994US5315283 Structure for variable electronic component
04/1994
04/14/1994DE4334265A1 Capacitor adjustable by rotation of slotted metallic component - has rotor pressed into stable contact with stator by force of springy portion of housing giving access to slot
03/1994
03/31/1994DE4232116A1 Capacitive rotation angle sensor arrangement - has rotor and stator plates carrying electrodes designed for dimensional and positioning tolerance
03/29/1994US5297720 Method of assembling a mechanical part including a sensitive element on a support to define a variable capacitor, a mechanical part, and a tool for implementing the method
12/1993
12/23/1993WO1993025880A1 Aluminosilicate glass pressure transducer
12/09/1993WO1993024922A1 Electromagnetic-wave modulating, movable electrode, capacitor elements
11/1993
11/23/1993US5264983 Monolithic capacitor with variable capacitance
10/1993
10/28/1993DE4312409A1 Electronic component or adjustable capacitor mfg. system - has concave section formed by burning off spaced films in thickness of ceramic laminate to form spaced thin layers which are then collapsed
08/1993
08/19/1993DE4204212A1 Capacitive differential level sensor unaffected by dielectric constant change - comprises isolated surfaces with capacitance on immersion measured using constant ratio of capacitances
07/1993
07/27/1993US5231559 Full color light modulating capacitor
07/20/1993US5229912 Trimmer capacitor
07/20/1993US5229911 Variable trimmer capacitor
07/20/1993US5228341 Capacitive acceleration detector having reduced mass portion
06/1993
06/03/1993DE4139356A1 Plate measurement capacitor for determining electrical and dielectric parameters - has three plates, two planar outer electrodes at the same potential and intermediate counter-electrode, with stiff lead mounting and guide
04/1993
04/27/1993US5206785 Variable capacitor and position indicator employing variable capacitor
04/01/1993WO1993006610A1 Monolithic capacitor with variable capacitance
02/1993
02/23/1993US5189591 Aluminosilicate glass pressure transducer
01/1993
01/20/1993EP0252929B1 Electrically variable piezoelectric hybrid capacitor
01/19/1993US5181156 Micromachined capacitor structure and method for making
12/1992
12/29/1992US5175521 Miniature dynamically tunable microwave and millimeter wave device
12/09/1992EP0517232A2 Improved miniature microwave and millimeter wave tunable circuit
12/02/1992EP0516166A2 Miniature dynamically tunable microwave and millimeter wave device
12/01/1992US5168249 Miniature microwave and millimeter wave tunable circuit
11/1992
11/10/1992US5162972 Liquid filled variable capacitor
11/04/1992CN1018973B Unitary capacitance trimmer
10/1992
10/15/1992DE4214131A1 Macrocrystalline diamond monocrystal synthesis from graphite - by polymerising and applying required external electrostatic field
10/14/1992EP0507826A1 Method for mounting a machine part comprising a sensitive element which defines, with a support, a variable capacitor
10/13/1992US5155654 Variable electronic component
09/1992
09/22/1992US5150275 Capacitive pressure sensor
08/1992
08/11/1992US5138519 Selectively variable capacitor
07/1992
07/15/1992CN2110276U High-frequency medium changable condenser
06/1992
06/11/1992DE4038726A1 Rotary capacitor tensioning device - uses spring loaded tensioning tongs to set each capacitor to defined rotary position
04/1992
04/30/1992DE4133796A1 Miniature inductive component with capacity tuner - has axial bore in support with longitudinal groove over part of its length
03/1992
03/24/1992US5099386 Variable-capacitance position transducing
01/1992
01/15/1992CN1057923A Capacitor
01/08/1992CA2042145A1 Piezoelectrically actuated variable capacitor
12/1991
12/31/1991US5075940 Process for producing solid electrolytic capacitors
12/24/1991US5075600 Piezoelectrically actuated variable capacitor
12/11/1991EP0460930A2 Ballast for an electrodeless high intensity discharge lamp
10/1991
10/22/1991US5060109 Adjustable electrical device
09/1991
09/19/1991WO1991010347A3 Method for mounting a machine part comprising a sensitive element which defines, with a support, a variable capacitor
09/05/1991WO1991013451A1 Method and apparatus for tuning and matching an nmr coil
08/1991
08/07/1991EP0439790A2 Pressure sensor for hydrostatic filling level measurement
07/1991
07/30/1991USRE33651 Variable gap device and method of manufacture
07/30/1991US5036426 Method and apparatus for tuning and matching an NMR coil
07/11/1991WO1991010347A2 Method for mounting a machine part comprising a sensitive element which defines, with a support, a variable capacitor
06/1991
06/11/1991US5023749 Capacitive angle sensor improvement
05/1991
05/07/1991US5013505 Method of molding a casing on a rotary electric component
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