Spiral wound transducer
First Claim
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1. A transducer compressible in a portion of the transducer in response to electric power, comprising:
- (a) a flexible, conductive plastic layer microimprinted with a tread-like pattern; and
(b) a stiff plastic layer containing a conductive embedded sheet, wherein the flexible layer and the stiff layer are formed by multiply winding together around a central form, so that the microimprinted flexible layer is bounded by stiff layers, wherein compression of the transducer in the compressed portion of the transducer is perpendicular to the plane of the conductive embedded sheet and to the linear axis of the central form, and wherein the flexible layer is distorted during compression of the transducer while the stiff layer remains parallel to the surface of the central form in the compressed portion of the transducer.
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Abstract
A transducer compressible in response to electric power, including a flexible, conductive plastic layer microimprinted with a pattern and a stiff plastic layer containing a conductive embedded sheet.
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Citations
16 Claims
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1. A transducer compressible in a portion of the transducer in response to electric power, comprising:
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(a) a flexible, conductive plastic layer microimprinted with a tread-like pattern; and
(b) a stiff plastic layer containing a conductive embedded sheet, wherein the flexible layer and the stiff layer are formed by multiply winding together around a central form, so that the microimprinted flexible layer is bounded by stiff layers, wherein compression of the transducer in the compressed portion of the transducer is perpendicular to the plane of the conductive embedded sheet and to the linear axis of the central form, and wherein the flexible layer is distorted during compression of the transducer while the stiff layer remains parallel to the surface of the central form in the compressed portion of the transducer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A transducer compressible in a portion of the transducer in response to electric power, comprising:
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(a) a flexible, conductive plastic layer; and
(b) a stiff plastic layer containing a conductive embedded sheet, wherein the flexible layer and the stiff layer are composed as a single inseparable unit, and then formed by multiply winding together around a central form and bonding each turn of the winding to adjacent turns by application of an adhesive in the compressed portion of the transducer, wherein compression of the transducer in the compressed portion is perpendicular to the plane of the conductive embedded sheet and to the linear axis of the central form, and wherein compression of an area of the transducer results in distortion of the flexible layer while the stiff layer remains parallel to the surface of the central form in the compressed portion of the transducer. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification