Abstract: A planar diaphragm acoustic loudspeaker having a planar diaphragm biased with a high magnetic flux density magnetic circuit which feeds an acoustic waveguide. The apparatus provides high fidelity and efficient acoustic reproduction of high frequency alternating current signals with a minimum of diaphragm resonance and with a substantially flat electrical input impedance versus frequency. The diaphragm has a substantially uniform drive across an acoustically active portion and is held in three dimensional space whereby any mass or diaphragm resonances are controlled and minimized. The acoustic waveguide mates with said diaphragm and ensures a uniform acoustic phase field and an optimal diaphragm acoustic impedance match with atmosphere.

Abstract: A horse racing board game which allows a global movement of all game pieces by all players yet provides a substantially equal probability of any game piece reaching the finish line and one or more players winning all or a portion of game currency within a game pot. The game has an amount of positions between a start and finish within each lane which are substantially proportional to the single event probability of a random number generator generating the number of the lane in which the positions are located. The random number generator is a pair of conventional dice or any other random number generator each of which have a probability distribution which said amount of positions are substantially proportional to.

Abstract: An audio headphone apparatus having ambient noise isolation properties for musicians and sound engineers which allows a user to substantially attenuate ambient noise levels and focus on the electronic audio presented to the headphones. The apparatus utilizes a unique layering of absorber materials with unique geometric shapes which in combination highly attenuate external ambient acoustic energy and control undesirable “boomy” bass response. The apparatus further utilizes a desiccant material within the ear cuff cover which helps to absorb perspiration or other moisture.

Abstract: A flexible walled cannula apparatus and method of use comprising a uniquely deformable cannula tube and head in combination with a uniquely shaped obturator which allows the use of heretofore unusable larger gauge surgical instruments while providing a self sealing incision. The apparatus and method of use provides a preassembled obturator and cannula assembly with which the surgeon forms an incision or channel, inserts the cannula tube, and through the cannula inserts surgical instruments to perform a surgical operation. The apparatus and method of use is especially suited for ophthalmic surgical operations. Alternative embodiments for use with even larger diameter instruments utilize a uniquely designed valve having leaflets which prevent bodily or other fluid leakage from the cannula when an instrument is not inserted.

Abstract: A lawn and leaf bag holder apparatus and method of use and manufacture comprising an arm holder and at least a pair of arms which are capable of holding a bag in an upright and open position. The bag holder adjusts to and holds a plurality of bag mouth sizes via elastic or spring separation, and provides for easy transport with a cart or dolly and easy storage especially for partially filled bags. The bag holder is especially suited for conventional biodegradable and recyclable lawn and leaf bags used to store or dispose of lawn or garden clippings or debris.

Abstract: A pry bar sliding fulcrum assembly having a fulcrum and saddle which slidably mates with a conventional prybar and which provides a greater force onto a work material than the conventional prybar alone. The pry bar sliding fulcrum assembly easily and quickly slides away from the work material when a conventional prybar function is desired and slides toward the work material when an enhanced application force or greater prybar end displacement is required. The assembly uniquely mates with or is held with the prybar end whereby the assembly retains a static position relative to the prybar during use.

Abstract: A pop tab remover apparatus and method of use having a fork and can support combination as a head which allow for easy removal of a tab from a soda, beer, or other type of can. The apparatus and method of use allows a user to easily place the fork between a tab and a can, seat or mate the can support near or at the top of the can, squeeze the handles and remove the tab with a “pop” like report. Unlike the prior art, the present art removes a can tab in a fraction of a second which aids in the efficient recycling of tabs.