Pressure actuated switching device and transfer method for making same
OwnerLester E. Burgess, Richard Lerchinventors
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Abstract
A method for making a pressure actuated switching device includes applying a conductive coating to the release surface of a transfer substrate to form a conductive electrode film. The conductive film is brought into contact with a surface of a first substrate under conditions of heat and pressure sufficient to cause the conductive film to transfer from the release surface of the transfer substrate to the first surface of the first substrate. The first substrate is then positioned in juxtaposition with a second substrate having a conductive layer film of the first substrate. Also provided herein is a method for spring loading a terminal plug to the pressure actuated switching device.
Claims40
A method for making a pressure actuated switching device comprising the steps of:
- a) providing a first substrate having a first surface;
- b) providing a transfer substrate having a release surface;
- c) applying a first conductive film to the release surface of the transfer substrate;
- d) contacting the first conductive film with the first surface of the first substrate under conditions of heat and pressure sufficient to cause the first conductive film to transfer from the release surface of the transfer sheet to the first surface of the first substrate;
- and
- e) positioning the first substrate in juxtaposition with a second substrate.
A pressure actuated switching device, which comprises:
- a) a longitudinally extending base fabricated as a single layer from a single composition, said base having an upper surface, the upper surface having a central portion and at least one peripheral portion;
- b) a first conductive electrode coating deposited on the central portion of the upper surface of said base but not on the peripheral portion;
- c) an elastomeric longitudinally extending cover fabricated as a single layer from a single composition, said cover having an inner surface, the inner surface having a generally U-shaped portion and at least one laterally projecting flange portion, the flange portion of the inner surface of the cover being fixedly attached directly to the peripheral portion of the upper surface of the base to define a longitudinal seam;
- d) a second conductive electrode coating deposited on the U-shaped portion of the inner surface of the cover but not on the flange portion.
Dependencies are inferred from the claim text.