Abstract: A reclining chair including a support base, a chair seat rotatably coupled at its forward portion to the support base, a substantially vertically disposed coil spring provided adjacent the forward portion of the seat and between the seat and the support base such that the coil spring is pivotally coupled to the seat portion and the support base at its ends, an apparatus for pivoting one end of the coil spring about another end of the coil spring and an offset crank for driving said apparatus.

Abstract: A reclining chair including a support base, a chair seat rotatably coupled at its forward portion to the support base, a substantially vertically disposed coil spring provided adjacent the forward portion of the seat and between the seat and the support base such that the coil spring is pivotally coupled to the seat portion and the support base at its ends, an apparatus for pivoting one end of the coil spring about another end of the coil spring and an offset crank for driving said apparatus.

Abstract: A reclining chair including a support base, a chair seat rotatably coupled at its forward portion to the support base, a substantially vertically disposed coil spring provided adjacent the forward portion of the seat and between the seat and the support base such that the coil spring is pivotally coupled to the seat portion and the support base at its ends and an apparatus for pivoting one end of the coil spring about another end of the coil spring.

Abstract: A reclining chair including a support base, a chair having seat and back portions integrally formed, a lever arm fixed to and extending from a bottom and forward portion of the seat portion, a means for pivotally coupling the forward portion of the seat portion to the base portion such that the seat portion pivotally moves substantially about a pivoting axis passing through an expected vicinity of a pivoting axis of a knee joint of a person sitting in the reclining chair, a roller engaging with a surface of the lever arm, a mechanism for moving the roller along the surface of the lever arm and a coil spring pivotally coupled at one end to the support base and rotatably coupled to the roller at the other end.

Abstract: A reclining chair including a seat, a back and a base. The forward portion of the seat is pivotally coupled to the base such that the seat pivotally moves substantially about a knee of a person seated in the reclining chair. Also, the seat and back are coupled together such that the back portion pivotally moves substantially about a hip of the person seated in the reclining chair as the chair is reclined.

Abstract: A position switch is set forth which is adapted to generate a signal whenever two masses, such as a vehicle sprung and unsprung mass, are at or nearer than a desired spacing. The switch includes a grounded, conical, coiled spring attached to one mass, and an electrically charged plate secured to the other mass. The spring has a relaxed length to lie adjacent the plate when the masses are at the desired spacing. When the masses are brought together the spring contacts the plate, is compressed, and the plate is grounded generating a current signal indicating that the masses are at or nearer than the desired spacing.