Abstract: A helmet for use by riders of bicycles, motorcycles or other vehicles. Left and right hearing assemblies are mounted inside of the helmet. Each of the assemblies has an enclosed ear cup positioned to fit snugly over a respective one of the user's ears. Respective hearing conduits extend from the ear cups through the interior of the helmet to respective openings. Thereby while the ear cups block substantial wind noises, the hearing conduits direct desirable sounds, such as emergency sirens, other traffic noises and voices, to the user's ears. User operable actuators for closing and opening the hearing conduits as desired can be provided. Optional ventilation tubes direct cooling and drying air through openings in the ear cups to the user's ears. Gates or shutters supported by the helmet shell allow the user to open and dose the ventilation tubes as desired.

Abstract: A helmet for use with a bicycle, motorcycle or other vehicle. In one embodiment, a duct is located at each side of the helmet, and used for the dual functions of drawing air from the interior of the helmet and channeling ambient sounds inside the helmet where the sounds can be heard by a user. Sounds may be enhanced by the use of microphones, speakers, and other electronic equipment. The side ducts extend to the rear of the helmet and help to reduce drag and turbulence-induced vibration due to air flow. In another embodiment, separate air and sound ducts are located at each side of the helmet. The separate air and sound ducts function more efficiently because air and sound waves pass through different inlet ports and openings in the helmet. Breakaway joints may be used for the helmet.

Abstract: A compact multi-purpose exercise device includes two adjustable length arms which are pivoted together at one end and which has adjustable angle handles or actuators at their other ends. At the pivot point of the two arms a hydraulic resistance member is provided which has a substantially constant force, which may be adjusted, and which is substantially independent of the speed at which the handles are actuated relative to one another. The constant force is provided by a reverse Pelton bucket, which includes a spring-biased member in the hydraulic fluid flow path which is moved to reduce hydraulic flow resistance with increased velocity of the hydraulic fluid flow. Hydraulic fluid is directed to the reverse Pelton bucket assembly by a vane which is rotatable in a hydraulic fluid chamber as the arms are rotated relative to one-another.

Abstract: A lightweight universal electric wheeled chair is formed of hollow tubular frame members. The seat is preferably cantilevered from rear frame members. The frame includes two lower side frame members, each of which has relatively small wheels mounted at both ends. The frame also includes two rear frame members, pivotally connected together intermediate their ends to form an "X" configuration with the lower ends of each of the rear frame members being pivotally secured to the rear ends of the lower side frame members. The front of the two lower side members are coupled together using two frame members and linear bearings intercoupling the two frame members to permit adjustment and collapsing of the wheeled chair. Two upper side members extend forwardly from the rear of the wheeled chair, and are secured to the rear frame members.

Abstract: A lightweight universal electric wheeled chair is formed of hollow tubular frame members. The seat is preferably cantilevered from rear frame members. The frame includes two lower side frame members, each of which has relatively small wheels mounted at both ends. The frame also includes two rear frame members, pivotally connected together intermediate their ends to form an "X" configuration with the lower ends of each of the rear frame members being pivotally secured to the rear ends of the lower side frame members. The front of the two lower side members are coupled together using two frame members and linear bearings intercoupling the two frame members to premit adjustment and collapsing of the wheeled chair. Two upper side members extend forwardly from the rear of the wheeled chair, and are secured to the rear frame members.

Abstract: A novel construction toy includes at least one substantially planar sheet containing a printed pattern on its surface; a plurality of colored interstacking blocks capable of intercoupling, such as frictionally interlocking, with one another to form a pattern corresponding to the pattern printed on said sheet; an elongate grid block capable of intercoupling with said blocks, and a support structure for holding said grid block and said pattern sheet with the latter in a position underlying said grid block; which support structure includes a first elongated member containing a first planar surface and a second planar surface recessed from said first to define a ledge; means for mounting the grid block in a position on said first member so as to protrude into a position overlying said second recessed surface and thereby define a channel for receiving an edge of the sheet; and a second member coupled to said first member for holding the sheet member from said other end; whereby said intercoupling blocks may be bui

Abstract: A picture frame having four elongated side members positioned together to form a rectangle, projections at each end of each of the side members, four clips each adapted to fasten over the two projections of adjoining side members to fasten such side members for hanging the frame, and means which snap to each side member to retain a picture.

Abstract: A toy vehicle launcher and a toy vehicle for use therewith is disclosed. The toy vehicle launcher includes first and second spaced, generally parallel sidewalls each having an inner surface and an outer surface. A first and a second spiral retainer member are attached to the inner surfaces of the first and second sidewalls respectively. The second spiral member is opposed to the first spiral retainer member, and is generally parallel thereto throughout its length. Each of the spiral retainer members has a first end near the center of the sidewalls of the toy vehicle launcher and a second end near the periphery of the toy vehicle launcher. One of the sidewalls has an aperture therein near its center through which the toy vehicle to be launched can be placed into contact with the first and second spiral retainer members near their first ends. The toy vehicle launcher also includes a second aperture adjacent the second ends of the spiral retainer members.