Humbucking electromagnetic pickup for stringed musical instruments
First Claim
Patent Images
1. A humbucking electromagnetic pickup for musical instruments having ferromagnetic strings, said pickup comprising:
- magnetic means for generating a magnetic flux path through the ferromagnetic strings of a musical instrument;
a sensing coil positioned in said flux path for generating output signals corresponding to flux variations produced by vibration of said strings; and
a humbucking coil in series with said sensing coil but wound in an opposite direction thereto, said humbucking coil being concentric with said sensing coil and having a greater inside dimension than the outside dimension of said sensing coil.
0 Assignments
0 Petitions
Accused Products
Abstract
A humbucking electromagnetic pickup for musical instruments, such as guitars having ferromagnetic strings. The pickup includes a permanent magnet for generating a flux path through the strings, a sensing coil in the flux path, and a humbucking coil substantially out of the flux path and concentrically wound closely around the periphery of the sensing coil and in opposition thereto to cancel radiating extraneous interfering electromagnetic hum from the sensing coil.
-
Citations
15 Claims
-
1. A humbucking electromagnetic pickup for musical instruments having ferromagnetic strings, said pickup comprising:
-
magnetic means for generating a magnetic flux path through the ferromagnetic strings of a musical instrument; a sensing coil positioned in said flux path for generating output signals corresponding to flux variations produced by vibration of said strings; and a humbucking coil in series with said sensing coil but wound in an opposite direction thereto, said humbucking coil being concentric with said sensing coil and having a greater inside dimension than the outside dimension of said sensing coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A humbucking electromagnetic pickup for use with musical instruments having ferromagnetic strings, said pickup comprising:
-
a sensing coil for generating output signals in response to variations in a magnetic flux path through said sensing coil; a humbucking coil in series with said sensing coil but with windings wound in electrical opposition thereto, said humbucking coil being concentric with said sensing coil and having its inside width surface closely spaced from the outside width surface of said sensing coil; first magnetic means of a first magnetic polarity for directing a magnetic flux path through the center of said sensing coil; and second magnetic means interposed in the spaces between the outside width surface of said sensing coil and the inside width surfaces of said humbucking coil, said second magnetic means being of a second magnetic polarity for directing said magnetic flux path from the center of said sensing coil across said sensing coil to said second magnetic means. - View Dependent Claims (15)
-
Specification