Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
238 words
A quadrant drive for use to drive a rotor of a microwave switch at 90° from a first given input-output configuration to a second given input-output configuration and vice versa, said driver comprising: a housing; a magnet and bearing holder rotatably mounted inside said housing, said holder supporting, on one side, a thin, high magnetic density magnet of a given polarity and, on the other side, a bearing operatively connected to the rotor of the microwave switch to rotate said rotor when said holder is itself rotated, said holder and magnet being rotated between two rest positions, each of said rest positions corresponding to one of said first and second given input-output configurations of the microwave switch; a pair of coils concentric to mild steel cores, said cores being mounted within the housing so that one of said cores faces with a given offset the magnet when said magnet is in one of its rest positions, said cores being permanently spaced apart from said magnet; and means to selectively energize each of the coils with a DC current of such a direction as to create a magnetic field having a polarity identical to the one of the magnet, said energization causing a direct magnetic repulsion between one coil at the time and the magnet and thus causing rotation of said magnet and associated holder from one of its rest positions to the other, and vice versa, whenever desired.
Claim 2
Dependent Claim
238 words
A quadrant drive for use to drive a rotor of a microwave switch at 90° from a first given input-output configuration to a second given input-output configuration and vice versa, said driver comprising: a housing; a magnet and bearing holder rotatably mounted inside said housing, said holder supporting, on one side, a thin, high magnetic density magnet of a given polarity and, on the other side, a bearing operatively connected to the rotor of the microwave switch to rotate said rotor when said holder is itself rotated, said holder and magnet being rotated between two rest positions, each of said rest positions corresponding to one of said first and second given input-output configurations of the microwave switch; a pair of coils concentric to mild steel cores, said cores being mounted within the housing so that one of said cores faces with a given offset the magnet when said magnet is in one of its rest positions, said cores being permanently spaced apart from said magnet; and means to selectively energize each of the coils with a DC current of such a direction as to create a magnetic field having a polarity identical to the one of the magnet, said energization causing a direct magnetic repulsion between one coil at the time and the magnet and thus causing rotation of said magnet and associated holder from one of its rest positions to the other, and vice versa, whenever desired.
Claim 3
Dependent Claim
33 words
The quadrant driver of claim 1, wherein the magnet and bearing holder is secured to a stainless steel shaft rotatably mounted within the housing so as to rotatable with respect to the coils.
Claim 4
Dependent Claim
18 words
The quadrant driver of claim 2, further comprising a manual override rigidly secured to the stainless steel shaft.
Claim 5
Dependent Claim
22 words
The quadrant driver of claim 3, wherein the housing is made of metal and rigidly supports the coils and mild steel cores.
Claim 6
Dependent Claim
40 words
The quadrant driver of claim 3, further comprises two adjustable machanical stops at 90° to each other, said stops being rigidly secured to the housing and positioned to stop the magnet and bearing holder into each of its rest positions.
Claim 7
Dependent Claim
16 words
The quadrant driver of claim 5, further comprising a power connector rigidly secured to the housing.
Claim 8
Dependent Claim
25 words
The quadrant driver of claim 6, wherein said energizing means includes two miniature lever switches rigidly mounted at 90° to each other within the housing.
Claim 9
Dependent Claim
31 words
The quadrant driver of claim 7, wherein the energizing means further includes connecting wires to connect the coils to a power source through the miniature switches of and the power connector.
Claim 10
Dependent Claim
24 words
The quadrant driver of claim 8, wherein the energizing means further includes two AC to DC transformers to energize the coils with DC current.