Abstract: A composite allograft press comprises a loading frame and a two piece mold to form an composite allograft and in particular an acetabular cup from impacted cancellous bone chips and cement. Pressure is applied by a manually operated lever through a rack-and-pinion gear mechanism to a plunger attached to one part of the mold. Compression load switches in-line with the plunger indicate the correct loading to the mold to produce a composite allograft in which the inner surface is smooth and comprised essentially of hardened bone cement material. The outer portion of the allograft may have limited cement extrusions but the exterior of the cup primarily shows exposed cancellous bone surface. In surgery a composite allograft; e.g., an acetabular cup, is fixed in the acetabulum with bone screws to fill an acetabular defect. A plastic liner is affixed with bone cement directly to the composite allograft cup to receive the femoral component.

Abstract: A monocular night vision device comprising an objective lens assembly for receiving low intensity light; an image intensifier assembly comprising a variable gain image intensifier tube having an adjustable potentiometer mounted external to the tube for converting the low intensity light into a visible output image; a single eyepiece lens assembly for viewing the output image from the image intensifier assembly; and a non-metallic housing for receiving the objective lens assembly, image intensifier assembly, and eyepiece lens assembly, wherein the housing aligns the objective lens assembly with the image intensifier assembly and the eyepiece lens assembly along an optical axis.

Abstract: A composite allograft press comprises a loading frame and a two piece mold to form an composite allograft and in particular an acetabular cup from impacted cancellous bone chips and cement. Pressure is applied by a manually operated lever through a rack-and-pinion gear mechanism to a plunger attached to one part of the mold. Compression load switches in-line with the plunger indicate the correct loading to the mold to produce a composite allograft in which the inner surface is smooth and comprised essentially of hardened bone cement material. The outer portion of the allograft may have limited cement extrusions but the exterior of the cup primarily shows exposed cancellous bone surface. In surgery a composite allograft; e.g., an acetabular cup, is fixed in the acetabulum with bone screws to fill an acetabular defect. A plastic liner is affixed with bone cement directly to the composite allograft cup to receive the femoral component.

Abstract: A delivery access device attachable to a currency dispenser comprising: a mounting plate attachable to the currency dispenser, the plate having a money dispensing slot; two separate and independent barrier members mounted within the money dispensing slot, each barrier member having a first position where it is retracted and a second position where it is extended to obstruct access to the slot; two separate and independent actuators, a first of which is for moving one of the barrier members between its retracted and extended position, and a second of which is for moving a second of the barrier members between its retracted and extended position; and an electrical connector for connecting the actuators to the circuitry of the currency dispenser.

Abstract: The surface area of a junction-isolated tub in a silicon epitaxial layer grown on a silicon substrate is increased by introducing dopant into surface portions of the tub to effectively push back the junction between the tub and the isolation region. The junction-isolation region surrounding the tub typically has a dopant concentration profile which decreases from the center of the junction-isolation region towards the junction with the tub. By increasing the surface concentration of dopant in the tube, the net dopant concentration of peripheral portions of the junction-isolation region is converted, thereby effectively increasing the size of the surface of the tub. The dopant concentration in the surface of the entire tub can be increased, or only the periphery of the tub can have increased dopant concentration, thereby maintaining the breakdown voltage of devices fabricated in the tub.

Abstract: The surface area of a junction-isolated tub in a silicon epitaxial layer grown on a silicon substrate is increased by introducing dopant into surface portions of the tub to effectively push back the junction between the tub and the isolation region. The junction-isolation region surrounding the tub typically has a dopant concentration profile which decreases from the center of the junction-isolation region towards the junction with the tub. By increasing the surface concentration of dopant in the tub, the net dopant concentration of peripheral portions of the junction-isolation region is converted, thereby effectively increasing the size of the surface of the tub. The dopant concentration in the surface of the entire tub can be increased, or only the periphery of the tub can have increased dopant concentration, thereby maintaining the breakdown voltage of devices fabricated in the tub.

Abstract: A wire guard coupler for shielding and retaining wires in buildings and the like comprises a first tapered cylindrical member having a tapered track member on a first side thereof and a longitudinal slot on a second side thereof. A second tapered cylindrical member is adapted to slideably fit with said first cylindrical member and has a tapered track member and a longitudinal slot correspondingly positioned with said track and slot on said first cylindrical member. In a preferred embodiment said first cylindrical member has a tang integral with said tapered track for locking said coupler in place and both cylinders are flared at a larger end thereof. The coupler is preferably manufactured by stamping and rolling sheet metal into the desired configuration.

Abstract: An electrified vacuum cleaner hose adapter for electrically and mechanically interconnecting an electrified vacuum cleaner hose with an electrified vacuum cleaner wand or accessory, comprises a handle portion which includes two tubular portions set at an angle to each other, an inlet member for connecting to a vacuum cleaner hose and an outlet member for connecting to the vacuum cleaner wand or accessory. Electrical connectors are provided at each end of the handle portion of the adapter for connecting with corresponding electrical conductors of the hose and wand, respectively. Electrical conductors extend between the connectors. The connectors and the electrical conductors are covered by a projecting member which defines a closed passage in the handle portion for enclosing the electrical connectors and conductors and for serving as a manually grippable protrusion on the handle portion. A switch may be provided in the projecting portion to control the electrified wand or accessory connected to the adapter.

Abstract: An electrified vacuum cleaner hose adapter for electrically and mechanically interconnecting an electrified vacuum cleaner hose with an electrified vacuum cleaner wand or accessory, comprises a handle portion which includes two tubular portions set at an angle to each other, an inlet member for connecting to a vacuum cleaner hose and an outlet member for connecting to the vacuum cleaner wand or accessory. Electrical connectors are provided at each end of the handle portion of the adapter for connecting with corresponding electrical conductors of the hose and wand, respectively. An electrical wire extends between the connectors. The connectors and the electrical wire are covered by a channel-shaped member which defines a closed passage in the handle portion for enclosing the electrical connectors and wire and for serving as a manually grippable protrusion on the handle portion.

Abstract: An electrified vacuum cleaner hose adapter for electrically and mechanically interconnecting an electrified vacuum cleaner hose with an electrified vacuum cleaner wand or accessory, comprises a handle portion which includes two tubular portions set at an angle to each other, an inlet member for connecting to a vacuum cleaner hose and an outlet member for connecting to the vacuum cleaner wand or accessory. Electrical connectors are provided at each end of the handle portion of the adapter for connecting with corresponding electrical conductors of the hose and wand, respectively. Electrical conductors extend between the connectors. The connectors and the electrical conductors are covered by a projecting member which defines a closed passage in the handle portion for enclosing the electrical connectors and conductors and for serving as a manually grippable protrusion on the handle portion. A switch may be provided in the projecting portion to control the electrified wand or accessory connected to the adapter.

Abstract: An electrified vacuum cleaner hose adapter for electrically and mechanically interconnecting an electrified vacuum cleaner hose with an electrified vacuum cleaner wand or accessory, comprises a handle portion which includes two tubular portions set at an angle to each other, an inlet member for connecting to a vacuum cleaner hose and an outlet member for connecting to the vacuum cleaner wand or accessory. Electrical connectors are provided at each end of the handle portion of the adapter for connecting with corresponding electrical conductors of the hose and wand, respectively. An electrical wire extends between the connectors. The connectors and the electrical wire are covered by a channel-shaped member which defines a closed passage in the handle portion for enclosing the electrical connectors and wire and for serving as a manually grippable protrusion on the handle portion.

Abstract: An electrified vacuum cleaner hose adapter for electrically and mechanically interconnecting an electrified vacuum cleaner hose with an electrified vacuum cleaner wand or accessory, comprises a handle portion which includes two tubular portions set at an angle to each other, an inlet member for connecting to a vacuum cleaner hose and an outlet member for connecting to the vacuum cleaner wand or accessory. Electrical connectors are provided at each end of the handle portion of the adapter for connecting with corresponding electrical conductors of the hose and wand, respectively. An electrical wire extends between the connectors. The connectors and the electrical wire are covered by a channel-shaped member which defines a closed passage in the handle portion for enclosing the electrical connectors and wire and for serving as a manually grippable protrusion on the handle portion.

Abstract: A method and apparatus for use in chemical milling operations to automatically cut a maskant material, such as a thin film of plastic, which has been applied to the workpiece. The cutting device of the invention is designed for use with a computer controlled apparatus embodying a rectilinear robot adapted to move the cutting device in first, second and third directions relative to the workpiece. The pressural engagement between the cutting blade of the device and the workpiece is continuously sensed and controlled. Additionally, the angle between the cutting blade and the maskant is controllably varied as the cutting device is moved by the rectilinear robot.

Abstract: A method and apparatus for chemically milling large sheet metal workpieces and the like to uniform wall thickness in which all wall thickness measurements and all cutting of the protective maskant which is applied to the surfaces of the workpiece is accomplished automatically and with extreme precision through the use of a computer directed robot.

Abstract: A drive motor is arranged to be secured to the frame of a manually operated trailer landing gear assembly, and a releasable coupling is provided for connection between the output shaft of the drive motor and an input shaft of a gear reduction assembly of the landing gear assembly whereby the manual drive is converted to power drive. The releasable coupling allows the drive motor to be disconnected from the gear reduction assembly in the event that it is desired to provide manual operation. The releasable coupling has a structure which maintains a drive connection through axial shifting movements of the gear reduction assembly input shaft.

Abstract: A method of measuring trace level hydrogen chloride concentration in a gas stream is disclosed. The gas stream containing hydrogen chloride is passed through a heated vitreous carbon catalyst and then mixed with ozone in a point source reaction chamber. The light emitted in the chemical reaction is measured by a sensitive amplifier and the output is displayed on a meter, recorder, or any other suitable device. Apparatus for measuring trace level hydrogen chloride concentration in a gas stream is also disclosed.

Abstract: Woven fiber glass fabric is simultaneously resin finished and dyed in a rapid process which impregnates the fabric with a liquid finishing media of low surface tension and high volatility containing dyes and dissolved resins in a halogenated hydrocarbon solvent.