Abstract: A drive-on watercraft (10) has removable/replaceable bunks (50, 80). The bunks are configured to define two rails (64,66; 94a,b). In one embodiment, one rail (64) is higher than the other rail (66). This bunk with rails of different heights can be positioned on the body of the lift with either rail facing inwardly, such that the lift can be configured to receive watercraft of different sizes. In a second embodiment, the bunk (80) has a ramp (84) positioned to extend rearwardly from the back of the lift body when the bunk is mounted to the lift body. The bunk ramp (84) provides a sacrificial point of first contact for of a watercraft with the lift and provides for a softer ride for the watercraft onto the lift.

Abstract: A connector for a assembling members of a floating dock system comprises at least one post and a brace extending from the post. The post is shaped generally complimentarily to the shape of the socket, and comprises a generally convex midsection connected between a pair of generally falcate end portions. The post and brace define a flat, generally horizontal top surface to the connector. The dock system also includes a supplemental floatation system having a hollow floatation member body defining a chamber. The body includes a water port positioned to place the body interior in communication with water. An air port positioned vertically above the water port is placed in communication with a pump. A valve can be positioned between the chamber and the pump to selectively place the chamber in communication with the pump or to place the chamber in communication with the atmosphere.

Abstract: A drive-on watercraft (10) has removable/replaceable bunks (50, 80). The bunks are configured to define two rails (64,66; 94a,b). In one embodiment, one rail (64) is higher than the other rail (66). This bunk with rails of different heights can be positioned on the body of the lift with either rail facing inwardly, such that the lift can be configured to receive watercraft of different sizes. In a second embodiment, the bunk (80) has a ramp (84) positioned to extend rearwardly from the back of the lift body when the bunk is mounted to the lift body. The bunk ramp (84) provides a sacrificial point of first contact for of a watercraft with the lift and provides for a softer ride for the watercraft onto the lift.

Abstract: A dock system is formed from a plurality of interconnected dock modules, with adjacent dock modules connected together by means of at least one coupler. The coupler has a connector having a first end, a second end, and a middle portion which is flexible, compressible, and tensionable. Each dock module is formed from a buoyant float comprised of a plurality of buoyant float members, a decking support, decking mounted to the decking support to form a tread surface for the dock module, and a decking support connector extending between the decking support and the float to secure the decking support to the float. The decking support is formed from a frame made from frame members, at least one first cross member extending across one dimension of said float, and at least one second cross member extending across a second dimension of said float.

Abstract: A playground security system comprises a power supply and a monitoring station. The monitoring station comprises a camera, a light and/or an audio deterrent device which are electrically connected to the power supply. The monitoring station can be contained in a post; and the post is part of a playground structure or can be a stand alone post. The audio deterrent device emits signals in a frequency range that is bothersome to humans between the ages of about 13 to about 25 years. The audio deterrent device and light are activated by a motion sensor. Further, the system includes a dusk-to-dawn sensor which also controls the audio deterrent device and the light. The camera can be in an “always-on” mode and can be adapted to transmit signals containing visual or audio-visual information. The camera signals can be stored and viewed remotely from the playground.

Abstract: A Finite Impulse Response (FIR) filter for suppressing ringing in tunable, or adjustable, members of MEMS devices is described. In embodiments of the invention, the FIR filter includes staggered proportional plus delay filters, or posicast filters. The FIR filter of the present invention is applicable to an adjustable mechanical member in a MEMS device which can be modeled as single mode second order system characterized by a resonance frequency &ohgr;0 and damping constant &zgr;<<1, i.e., a highly underdamped, single mode, second order system.

Abstract: A Finite Impulse Response (FIR) filter for suppressing ringing in tunable, or adjustable, members of MEMS devices is described. In embodiments of the invention, the FIR filter includes staggered proportional plus delay filters, or posicast filters. The FIR filter of the present invention is applicable to an adjustable mechanical member in a MEMS device which can be modeled as single mode second order system characterized by a resonance frequency &ohgr;0 and damping constant &zgr;<<1, i.e., a highly underdamped, single mode, second order system.