Abstract: The contact switch assembly comprises a rotating housing with a stalk having a hollow shaft portion, a tip portion extending forwardly from the shaft portion and a contact arm extending downwardly from the shaft portion. The tip portion extends out from the housing to engage an adjacent inclined surface. As the housing is rotated, the stalk moves along the inclined surface so that the contact arm is moved vertically and brought into engagement with a printed circuit board (PCB) while simultaneously moving laterally across the PCB's surface. The vertical motion is caused by the rotation of the housing, while the lateral motion is caused by the stalk being forced laterally by the inclined surface. The combination of both the vertical and lateral motion provides a self-cleaning mechanism by the movement of the contacts in the lateral direction.

Abstract: The contact switch assembly comprises a rotating housing with a stalk having a hollow shaft portion, a tip portion extending forwardly from the shaft portion and a contact arm extending downwardly from the shaft portion. The tip portion extends out from the housing to engage an adjacent inclined surface. As the housing is rotated, the stalk moves along the inclined surface so that the contact arm is moved vertically and brought into engagement with a printed circuit board (PCB) while simultaneously moving laterally across the PCB's surface. The vertical motion is caused by the rotation of the housing, while the lateral motion is caused by the stalk being forced laterally by the inclined surface. The combination of both the vertical and lateral motion provides a self-cleaning mechanism by the movement of the contacts in the lateral direction.

Abstract: A compressed air clockspring includes a housing and a hub rotatably mounted with the housing. The housing has a first electrical connector and a first pneumatic port. The hub has a second electrical connector and a second pneumatic port. A ribbon cable has one end connected to the first electrical connector of the housing and the other end of the ribbon cable is connected to the second electrical connector of the hub. An air ring is rotatably mounted in the housing. The air ring rotates with the hub. The air ring fluidically connects the first pneumatic port to the second pneumatic port. The ribbon cable transmits electrical signals from the crash sensor to the airbag as is common in present day clocksprings. Unlike present day clocksprings, the compressed air clockspring transmits compressed air through the rotary joint formed by the structure of the compressed air clockspring.