A press on shoe cover includes a bottom layer and at least one bistable spring band. The bottom layer is sized to cover at least a bottom of a shoe. The at least one bistable spring band is attached to the bottom layer. The at least one bistable spring band having a stable planar position and a bias coiling position. The stable planar position is configured to hold the bottom layer flat. The bias coiling position is configured to wrap the bottom layer around at least the bottom of the shoe. When the shoe cover lays flat on a surface and the bottom of the shoe is pressed down on the shoe cover, the bistable spring band is configured to move to the bias coiling position thereby wrapping the bottom layer around at least the bottom of the shoe and securing the shoe cover on the bottom of the shoe.

A horizontal-motion vibration isolator utilizes a plurality of bent flexures to support an object to be isolated from horizontal motion. Each bent flexure includes a fixed end coupled to a base and a floating end which is cantilevered and coupled to the object being isolated. The arrangement of bent flexures allows the vertical height of the isolator to be reduced without compromising vibration isolation performance. Compressed springs or spring-like elements can be added to bear some of the weight of the object being isolated thus increasing the payload capacity of the isolator.

A nonlinear mechanical element including a buckling column and hard stops. In one embodiment when the nonlinear mechanical element is subjected to an increasing compressive load, the buckling column buckles at a critical load, resulting in reduced stiffness past the critical load. One or more lateral hard stops may be provided adjacent to the buckling column to prevent the buckling deformation from exceeding a certain extent, and axial hard stops may be provided to shift the load path away from the buckling column when a certain amount of compressive displacement has been reached.

The present disclosure relates to a fluid dispensing device (10), the fluid dispensing device (1) comprising: a housing (10) to accommodate a container (110) filled with a fluid, wherein the housing (10) comprises a sidewall 118) extending along a longitudinal direction (z), an outlet orifice (3), a discharge mechanism (130) operable for spray discharging at least one or multiple doses of the fluid via the outlet orifice (3), a protective cap (12) pivotally supported on or by the housing (10) between an open position and a closed position, wherein when in the closed position the outlet orifice (3) is effectively covered by the protective cap (12), a mechanical energy storage (50) coupled to the discharge mechanism (130), reversibly transferable between a preloaded state and an unloaded state and configured to store mechanical energy in the preloaded state effective to produce the spray discharging of the fluid, a biasing mechanism (150) comprising a biasing member (160) operationally coupled to the protective cap (12) and selectively engageable with the mechanical energy storage (50) to transfer the mechanical energy storage (50) into the preloaded state when the protective cap (12) moves into the closed position, a pinion segment (151) connected to or integrated into the protective cap (12), a rack segment (161) engaged with the pinion segment (151) and connected to or integrated into the biasing member (160).

The present disclosure relates to a mechanical energy storage for a fluid dispensing device (10), the mechanical energy storage comprising:a first drive spring (51) extending along a longitudinal direction (z),the drive spring (51) comprising a first longitudinal end (53) to engage with a housing (10) of the fluid dispensing device (1) and a second longitudinal end (54) opposite to the first longitudinal end (53) to engage with a driver (30) movable relative to the housing (10) along the longitudinal direction (z),wherein the mechanical energy storage (50) is reversibly transferable into a pre-loaded state by resiliently compressing the first drive spring (51) in the longitudinal direction (z) to thereby induce a resilient deformation of the first drive spring (51) in a first direction (y) transverse to the longitudinal direction (z), and-wherein the mechanical energy storage (50) is transferable from the pre-loaded state into an unloaded state by allowing the first drive spring (51) to relax into or towards an undeformed configuration with regard to the first direction (y) accompanied by a longitudinal expansion of the first drive spring (51).

The shock-absorbing buffer pad comprises an external compression body, an internal guide slot and an inserted adjusting component. The external compression body has a top part, a bottom part and a compression elastic component. The top part is configured with an inserting hole. The bottom part is located beneath the top part. The compression elastic component is connected between the top part and the bottom part. The compression elastic component has a folding part. When the top part is pressed, the compression elastic component will accumulate an inverse elastic force. The internal guide slot is formed on the bottom part of the external compression body and located inside the internal space of the external compression body. The internal guide slot has an inserting slot exposing upward. The interior of the inserting slot is formed with a stopping block. The inserted adjusting component has an inserting cylinder, which can be inserted into the inserting hole. The top surface of the inserting cylinder is positioned outside the inserting hole. The bottom part of the inserting cylinder is divided into multiple abutting walls corresponding to the stopping block.