Abstract: This hanger system for use in window balances features a hanger connected at a lower end of a window balance. The hanger has a carrier interface for connection to the window sash carrier. The carrier has a hanger interface for connection to the hanger. The interfaces are connected and disconnected by a pivoting motion of the hanger with respect to the carrier. Once connected these elements cannot be pulled apart and disconnected by tensile forces without first reversing the assembly steps. A snap connection may also be advantageously added to the hanger and carrier, allowing them to snap together in permanent or non-permanent fashion when fully or partially pivoted into alignment with each other.

Abstract: Molded resin vibration dampener is mounted on coiled tension window balance springs arranged within spring covers. A resin wall of the vibration dampener, shaped for fitting around the tension spring, has a slot oriented longitudinally of the spring, and the wall is flexible enough to allow the slot to be spread open so that the body can be pressed onto a mid-region of the spring. Resilient fins extend obliquely outward from the body far enough to engage an interior surface of the spring cover and thereby hold the body and the spring spaced away from the spring cover to prevent rattling of the spring within the cover.