Abstract: A toy gel ball firearm comprises internal LED's that selectively flash concurrently with firing. The toy may include a foldable shoulder stock, a trigger and trigger guard, an elongated integral barrel, and a receiver that mates with a magazine containing a plurality of hydrated gel balls to be fired. The LED's are disposed near the front of the toy, behind translucent panels. Circuits provided for actuating one or more LED's either sequentially or concurrently may be connected electrically to the OEM triggering mechanism associated with contemporary toy. The illumination system is “off” when the toy gun is on “safety”. With semi-automatic shooting, the LED's are blinked with each shot. LED illumination is constant in the full auto mode. The illumination system can be employed with or retrofitted to a variety of projectile-firing toys powered by internal batteries. Aesthetic lighting effects are maximized with a translucent housing for the toy.

Abstract: A sheet metal blank is formed into a helical turbine blade by stretching an outer portion of the blank by creating indents and detents thereon. Then the stretched side is flattened and the stretched structure is formed into a helical shape.

Abstract: A sheet metal blank is formed into a helical turbine blade by stretching an outer portion of the blank by creating indents and detents thereon. Then the stretched side is flattened and the stretched structure is formed into a helical shape.

Abstract: A sheet metal blank is formed into a helical turbine blade by stretching an outer portion of the blank by creating indents and detents thereon. Then the stretched side is flattened and the stretched structure is formed into a helical shape.

Abstract: A connector sealing sleeve for use with a coaxial cable box and a coaxial cable connector, the coaxial cable box being of the type having a base and a threaded post and the coaxial cable connector being of the type having an endface and internal threads for threaded engagement with the threaded member of the coaxial cable box, with the connector sealing sleeve being non-cylindrical and including a first sealing surface for engaging and sealing against the threaded post of the coaxial cable box and a second sealing surface for engaging and sealing against the endface of the coaxial cable connector, with the second sealing surface having an annular surface.

Abstract: A jig saw accessory is provided that is adaptable to multiple brands of jig saws and mounts to a saw in place of its conventional flat base. The invention is an improved coping foot plate for a reciprocating saw comprising a round or bullet nosed foot plate having a superior, top surface and an inferior, bottom surface opposite the top surface; an proximal end and a distal end opposite the proximal end; two lateral portions, left and right, opposite each other, each lateral portion being the mirror image of the other as the foot plate is bisected medially from proximal end to distal end; and a means for providing a rounded bearing surface plate for a jig saw with blade whereby triple compound cuts can be made into a material in one motion or movement while maintaining plate bearing contact at the point of blade to material cut or penetration.

Abstract: A key chain alarm and light is disclosed that overcomes the problems associated with prior art personal alarms. The invention combines the functionality of a key chain, flashlight and an alarm into a unitary assembly. The invention is physically diminutive in size and ergonomically shaped to facilitate its handling. However, it produces an audible alarm significantly louder than other prior art devices. The invention utilizes a unique speaker assembly to produce an extremely loud alarm signal. A piezoelectric transducer provides the vibratory medium. The vibrations produced by the transducer are acoustically focused and harmoniously amplified by an acoustic chamber before passing into a reverberation chamber. The reverberation chamber also increases the amplitude of the sound waves before selectively releasing them to produce the alarm signal. This signal immediately draws attention to the user in emergency situations. The alarm is easily activated by simply moving a switch to activate the alarm.

Abstract: A process for forming low resistance ohmic contacts on indium phosphide (InP) avoids the usual problem of high temperature annealing. The method comprises passing a current between two contacts of a suitably chosen metallic conductor that is doped so as to be the same conductivity type as the underlining semiconductor. Passage of the current causes the contacts to combine with the semiconductor via field assisted thermal diffusion.

Abstract: A method for annealing semiconductor samples, especially following ion-implantation of semiconductor samples is disclosed. A furnace on a set of rails is passed over the semiconductor sample which is supported on a stationary wire basket made of low thermal mass, fine tungsten wire. The furnace temperature may be about 5.degree. above the desired anneal temperature of the semiconductor sample such that the sample temperature rises to within a few degrees of the furnace temperature within seconds. Utilizing the moveable furnace insures uniform heating without elaborate temperature control or expensive beam generating equipment.The apparatus and process of the present invention are utilized for rapid annealing of ion-implanted indium phosphide semiconductors within 10 to 30 seconds and at temperatures of approximately 700.degree. C., thereby eliminating undesired and damaging movement of impurities within the ion-implanted InP.

Abstract: A normally off insulated gate field effect transistor having a p-type sin crystal InP substrate with source and drain contacts spaced apart and disposed thereon with a layer of silicon dioxide disposed over the InP material in the space between the contacts and a gate electrode disposed on the silicon dioxide to completely bridge the space between the contacts. The p-type single crystal InP substrate may be replaced by a p-type epitaxial InP material disposed on a semi-insulating InP substrate.

Abstract: A clip including a body portion for positioning on the spine of a book and a tail portion positionable on the inner spine. A head portion is provided to extend laterally of the body portion and when placed over the inner corners of adjacent pages will hold them apart. The pages can be turned over with the clip retained on the spine and be received in a cavity between the tail portion and the head portion. The clip also provides a book page marker.

Abstract: A liquid barrier contact to InP made of 40% tartatic acid and 30% hydrogen peroxide in a 3:1 ratio by volume is used for capacitance-voltage carrier profiling to large voltages (>10 V) on relatively heavily doped material (>10.sup.17 CM.sup.-3) and at room temperature.

Abstract: A method for the thinning and automatic leveling of layers of a semicondur for use in device fabrication applications. The method is to be employed with anodic thinning wherein a conducting semiconductor layer on a high resistivity substrate is placed in a suitable electrolyte and voltage is applied so that the sample is made positive with respect to a cathode, also immersed in the electrolyte. The instant method is directed to the anodic thinning of irregularities in the semiconductor by slowly immersing the semiconductor into the electrolyte such that the location of irregularities can be determined and processed by monitoring the anodic process.