A method and system of distributing a coupon in response to a request from a user using a computer network is disclosed. In a preferred embodiment, the present invention is realized using a portable device. Each pixel drive signal can however be a two-level digital signal. The biasing of the clamp halves toward each other provide for a tight sealing of the wound. Preferably, the phaser is a sealed unit, filled with oil at manufacture and requires no oil connection with the oil recirculation system of an engine upon which the phaser is mounted.