Abstract: A hearing protection system including an earplug displaceable from an open position to a closed position in response to a signal received from a trigger mechanism. The trigger mechanism responsive to a voice input, to cause the earplug to displace between the open position and the closed position based at least in part on receiving a predetermined keyword.

Abstract: A hearing protection system including an earplug moveably displaceable in a plane covering an ear of a user from an open position to a closed position in response to a signal received from a trigger mechanism. When in the open position, the earplug is positioned adjacent to the ear of the user to allow the user to hear ambient sound at an unchanged volume. When in the closed position, the earplug is positioned over the ear of the user to at least partly block the ambient sound and allow the user to hear the ambient sound at a reduced volume that is less than the unchanged volume.

Abstract: A hearing protection system includes a trigger mechanism that causes earplugs to displace between an open position and a closed position. The trigger mechanism is responsive to movement of a device and causes the earplugs to displace from the open position to the closed position based at least in part on a position of the device.

Abstract: A hearing protection system including an earplug moveably displaceable in a plane covering an ear of a user from an open position to a closed position in response to a signal received from a trigger mechanism. When in the open position, the earplug is positioned adjacent to the ear of the user to allow the user to hear ambient sound at an unchanged volume. When in the closed position, the earplug is positioned over the ear of the user to at least partly block the ambient sound and allow the user to hear the ambient sound at a reduced volume that is less than the unchanged volume.

Abstract: A releasable water ski binding system includes a trigger mechanism that causes releasable bindings to release a boot from a ski. The trigger mechanism senses a displacement of a portion of a body of a skier past a point of criticality and causes the releasable bindings to release the boot from the ski.

Abstract: A releasable water ski binding system includes a trigger mechanism that causes releasable bindings to release a boot from a ski. The trigger mechanism senses a displacement of a portion of a body of a skier past a point of criticality and causes the releasable bindings to release the boot from the ski.

Abstract: Various embodiments provide a tactile indication to an operator of a firearm of the number of cartridges remaining in the firearm's magazine. In some embodiments, an indication is provided when a critical few cartridges remain in the firearm.

Abstract: A preferred embodiment of a firearm cartridge clip is disclosed, in which the clip has an elongated housing extending from an open top end to an enclosed bottom end defining an elongated cartridge storage chamber. The clip has a cartridge support seat mounted in the chamber above a separate elevator element. A chamber compression spring is mounted in the chamber between a base at the bottom end and the elevator element to urge the elevator element upward. A separate movement-restraining means is associated with the cartridge support seat to resist downward movement of the seat from the opening at the top end. The clip has a loading facilitating means for selectively rendering the compression spring ineffective to urge the seat upward to thereby reduce the manual effort required to load the clip.

Abstract: A preferred embodiment of a combination boat lift and dock 10 is described having two spaced pontoons with an intermediate boat support 18. Pivot arm structures 20, 22 pivotally interconnect the boat support 18 with the pontoons. A drive mechanism 24 is connected to the pivot arm structures 20, 22 for pivoting the arm structures downward and inward to move at least one of the pontoons laterally inward toward the other pontoon to raise the boat support to lift a stored boat out of the water. The drive mechanism 24 is also designed to pivot the arm structures upward and outward to move at least one of the pontoons away form the other pontoon to lower the boat support 18 and lowering the boat into the water. The arm structures are pivotally connected to the underside of the pontoons. The dock 10 further includes a pontoon stabilizing mechanism 26 for preventing the pontoons from rocking or tilting.