Abstract: A security locker for mounting in a public area having a combination lock whose combination may be secretly and personally selected by each of a plurality of short-term users. The door is pivotally mounted to form a shelf in its fully opened position.

Abstract: An anti-siphoning device including a fill tube having a plurality of axially and radially spaced restriction elements extending across the interior thereof and an elastomeric annulus compressed between a pair of plates, one of which is mounted to the fill tube for securing the anti-siphoning device to the interior of a fill pipe. A plurality of apertures in the fill tube will allow rapid dispension of the fill liquid. A nozzle support retains an automatic fill nozzle above the restriction elements to prevent premature cut off.

Abstract: A technique and apparatus for muscle strength testing. A gauged pressure sensitive device is applied to the muscle while pressure to the muscle is gradually increased to a point just short of the muscle breaking point. The applied pressure at this pre-breaking point is measured to provide an objective measure of muscle strength. The gauged pressure sensitive device may be an air bag connected to a pressure gauge, the air bag being placed between the pressure source and the muscle, thereby allowing the applied pressure to be measured.

Abstract: An electric rotary toothbrush having an integral stem and brush guard housing within which is an axially moveable brush drive shaft and a removable brush. The brush drive shaft is manually controlled for axial movement by a control knob located on the stem and brush guard housing to lock the brush so that it is rotatably mounted on both sides thereof within the stem and brush guard housing and to allow removal of the brush from the housing.

Abstract: A solder reflow assembly technique wherein a substrate with solder pattern is immersed in a hot bath; after reflow of the solder, elements having a solder pattern therein are individually positioned on the substrate solder pattern; and the elements are aligned on the substrate by the surface tension created by the capillary action of the molten solder.

Abstract: A silicon substrate integrated circuit having a layer of aluminum forming Schottky contacts with lightly doped N conductivity regions and silicon doped aluminum forming ohmic contacts to heavily doped N conductivity regions and forming interconnects between contacts.

Abstract: A chimney cap having a securement extending from the crown support to engage the interior of the chimney and secure the cap thereto.

Abstract: A strain hardened, nonheat-treatable aluminum-magnesium alloy bar is cold worked. A selected segment of the cold worked portion is selectively heated to regain ductility of this segment. The selected segment is then cold worked to the final shape. The resulting product is a strain hardened structural element.

Abstract: A narrow woven stretch fabric is formed from bare elastomeric warp threads separated by high shrink warp threads and from a high shrink weft thread. The edge elastomeric warp threads are loosely wrapped with heat set yarn. These edge threads, which are under the same tension as the other elastomeric warp threads, are wrapped between the supply and the loom. The weft thread is interwoven at a low weft per inch and the fabric is heat treated to shrink the non-elastic high shrink threads and corrugate the elastomeric threads without heat setting. The wrapping device and the surface feed rollers for the elastomeric threads are driven by the loom drive at appropriate speeds.

Abstract: A low thermal coefficient NPN bipolar transistor includes a reverse biased buried zener diode formed in the interior of an emitter ring. Thermal compensation results from the symmetry of the base region and the concentric base contact, emitter and collector contact rings about the buried zener diode. A P type region extends the depth of the base region below the zener diode to prevent reach through of the cathode to the collector.

Abstract: A therapeutic positioning device for a paralyzed limb having either a flaccid or spastic condition. The therapeutic device consists of a support board removably accommodating a positioning rod which maintains the paralyzed limb in a therapeutically desirable position. The support board is provided with several locating holes each accepting the positioning rod. The locating holes are placed on the support board such that the rod can be located at varying positions to achieve the optimal therapeutic effect for a variety of limb sizes and conditions.

Abstract: A radiation hardened CMOS formed by applying a radiation hard gate oxide layer on a silicon substrate, by applying silicon doped aluminum gates on the gate oxide, and by ion implanting and annealing source and drain regions using said gates as masks at a temperature of or below 500 degrees centigrade. Using an N.sup.- type substrate, a P.sup.+ guard ring is formed at the interface of the P.sup.- well of the N channel MOS device and the N.sup.- substrate before the formation of the gate oxide.

Abstract: A bipolar device is formed in an N epitaxial layer region isolated from an N substrate and the remainder of the N epitaxial layer by a P surface ring and a buried P region. An N channel device is formed in the P surface ring and a P channel device is formed in the N epitaxial layer. A buried N region is formed in the buried P region using the same mask used to form the buried P region.

Abstract: In a memory array wherein each cell includes an emitter follower, a diode is formed on the emitter by a thin layer which is capable of being shorted by vertical migration of bit line atoms through the layer and into the emitter region. The thin layer is fabricated by epitaxially growing the thin layer over the wafer with the emitter diffusion aperture open, oxidizing the epitaxial layer, selectively removing portions of the polycrystalline epitaxial layer and removing the oxide from the remaining epitaxial layer in the emitter diffusion aperture.

Abstract: An unloader for portable containers including tension hanger arms suspending a vibratory support from a fixed support and pivotally connected to each support to limit the vibratory motion to horizontal, reciprocal, rectilinear motion. For side outlet portable containers, the vibratory support includes a first frame portion inclined relative to the horizontal and a second frame portion, with a discharge orifice, extending perpendicular from the lower horizontal edge of the first frame portion.

Abstract: A support material rectangle indicia is formed during the formation of the dielectrical isolation of starting material islands in one of said dielectrically isolated islands. An X indicia on a mask is positioned over the four corners of rectangular indicia to align the mask and the substrate.

Abstract: Electronic logic circuitry operates to detect and correct a short circuit condition, be it a short to system ground or supply voltage, in a circuit output. In one application, the short protection circuitry is incorporated into a high power CMOS driver. If the circuit output is shorted to ground, the short is detected and a signal is fed back to the input. This feedback signal forces the output to ground thus eliminating the excessive current flow. Conversely, if there is a short to supply voltage, V.sub.DD, a signal is fed back to the input that forces the output to supply voltage V.sub.DD, again eliminating the excessive current flow.

Abstract: A forced air heating unit having a first U-shaped air channel with inlet vents adjacent the front, and a second U-shaped forced air channel interior said first forced air channel communicating with the first forced air channel via an opening in the common rear wall and having exit vents adjacent the front. A fan is mounted to the rear wall having the motor exterior the forced air channels with an impeller in the common rear wall opening. A conical deflector extends from the interior wall of the second forced air channel towards said rear wall opening. A refractory floor in the firebox includes front, side and rear vertical portions with top surfaces inclined towards the respective wall. The rear and side vertical portions exceed the height of a grate or andirons positioned on the refractory floor.