Abstract: Automatic guided vehicle system for guiding a driverless vehicle over a predetermined path of travel without any tracks, wires or the like. The vehicle is provided with an active optical navigation section for determining vehicle position and bearing by scanning plural beacons distributed within the zone of travel of the vehicle, a passive ground navigation section including a gyrocompass for measuring changes in bearing of the vehicle and a wheel encoder for measuring distance traveled by the vehicle's steering wheel. Memory onboard the vehicle contains a series of path vectors which define a predetermined path of travel for the vehicle. The ground navigation section updates vehicle position and bearing as determined by the optical navigation section.
Abstract: An apparatus for measuring a radiation characteristic of a laser diode. An AC signal and a step-like DC voltage are applied to the laser diode and the radiant power output thereof is received by a photodiode having an output to which a first amplifier, a transformer, a capacitor and an AC amplifier for extracting the AC signal. The apparatus further comprises a first switch connected between the input of the first amplifier and the capacitor, and a second switch connected between both ends of the transformer. Every time the step-like voltage is stepped up, the first and second switches are closed for a short time as compared with the duration of a step period to protect the measurement from the influence of the change in the DC voltage.
Abstract: A method and apparatus for determining mass flow of fluid flowing within a conduit. The conduit is oscillated periodically transverse to the flow therein, and sensors sense the movement of the conduit at discrete, spaced locations on the conduit. The sensors generate periodic signals representative of the movement of the conduit at said locations. The method of the present invention comprises the steps of determining the instantaneous amplitude difference between the signals at a plurality of discrete adjacent intervals (which may or may not be of equal width), determining the product of the absolute value of the instantaneous amplitude difference and the amplitude of the interval for each said interval, determining the sum of said products for each interval over a cycle of oscillation, and generating from the sum a signal representative of mass flow.
Abstract: The present invention is directed to a kit for direct mail solicitation. The kit includes a first envelope having a window, a second envelope having a window and an insert. The second envelope is sized for insertion into the first envelope. The insert is sized for insertion into the first envelope. The insert has a first and second portion which are integral. The first portion is defined by first and second sections. These sections are detachable from one another. The first section is sized for insertion into the second envelope after detachment from the second section. The first section comprises a non-releasable label having a first and second identification thereon. The first identification is located on the non-releasable label of the first section such that when the first section is inserted into the second envelope, the first indentification is in registry with the window of the second envelope. The second portion of the insert comprises a releasable label having the second identification thereon.
Abstract: In a cargo-carrying vehicle having a power unit, a first cargo-carrying unit releasably affixed to the power unit, the first cargo-carrying unit not being pivotal on the power unit, and a second cargo-carrying unit releasably and pivotally connected to the first cargo-carrying unit, wherein the improvement comprises:a folding door including a first and second halves, each half having a first and a second section, a plurality of hinges mounting said first section to said cargo unit, a hinge mounting said first section to said second section, a predetermined distance between the first and second cargo-carrying unit, said first section having a width less than the predetermined distance.
Abstract: A gas-sensitive composite material comprises a porous dielectric having micropores and a thin film consisting of ultrafine metal particles dispersed in, and supported by, at least the porous surface layers of the dielectric.The gas-sensitive composite material is produced by a method comprising the steps of: forming a thin film of conductive ultrafine metal particles on at least the porous surface layers of a porous dielectric and dispersing the thin film metal, in a size similar to the pore opening, continuously or partly discontinuously in the porous layers, whereby a three-dimensional composite material is obtained.
Abstract: A combined laundry bag and clothes hamper in which a bag is suspended from a removable hanger which frames the bag opening, the bag being internally partitioned to allow segregation of clothes and being provided at its bottom with a zipper to permit ready removal of soiled laundry from the hamper bag. The hamper bag can be removed from the hanger, and has a drawcord to permit closure of its top to facilitate its being used to carry soiled laundry to a laundramat, washing machine or other cleaning facility.
Abstract: A precision power saw assembly which includes a saw table manufactured for exceeding close tolerance cutting of metals by a circular saw blade. The saw blade and its arbor are mounted for horizontal translation from one end of the saw table to the other by means of a servo controlled drive motor which is attached to a ball screw type drive so as to prevent backlash. The arbor is supported on a carriage way positioned vertically below the arbor and is stabilized by a second horizontally positioned carriage way. Each carriage way is attached to a single side of the support frame below the work piece support surface. The saw blade is driven by a constant speed motor having a variable speed transmission and gear box so as to permit selective adjustment of the cutting speed of the saw blade. The work piece is clamped on opposite sides of the cut and a precision work piece positioning apparatus is provided so as to further effectuate the cutting operation within a close tolerance range.
Abstract: An ink filter system including a self-washing filter provided with upper and lower cylinder chambers and a piston reciprocable between upper and lower positions in the upper cylinder chamber. First and second inlets are provided for introducing fluid into the upper cylinder chamber on opposite sides of the piston. The filter screen is mounted in the lower cylinder chamber. The filter is cleaned on the upstroke of a spray nozzle which is connected to the piston. The spray nozzle is cleaned on the downstroke of the piston.
Abstract: A photoelectric-piezoelectric velocity and impact sensor has a plurality of photoelectric light sources and associated photodetectors disposed on axes defining an array of light beams. A first electronic circuit is operatively coupled to the photodetectors for generating a signal representative of the moment in time when at least one light beam of the array is broken by a projectile passing through the array. A substantially planar transducer is disposed coplanar with and spaced apart from the array for generating a signal when the projectile strikes the transducer after passing through the array. A second electronic circuit responsive to the signal from the transducer is provided for generating a signal representative of the moment in time when the projectile strikes the transducer. A calculating circuit responsive to the signal from the first circuit and the signal from the second circuit is provided for calculating the velocity of the projectile as a function of the time difference between the signals.
Abstract: There is provided a high-purity molybdenum target or high-purity molybdenum silicide target for LSI electrodes which comprises a high-purity metallic molybdenum having an alkali metal content of not more than 100 ppb and a radioactive element content of not more than 10 ppb. Further, a process is provided for producing such target comprising a wet purification processing followed by a series of dry processings.
June 23, 1986
Date of Patent:
September 13, 1988
Nihon Kogyo Kabushiki Kaisha, Nippon Telegraph and Telephone Corporation
Abstract: A surgical knife, particularly for use in radial keratotomy, comprises a blade, such as a diamond, which is movable for adjustment of the depth of cut by an invariant coupling to a micrometer mechanism, without provision for full retraction of the blade, and a removable protective end cap adapted to encompass the blade when the knife is not in use. The invariant coupling of the blade to the micrometer mechanism is via a mechanical linkage which incorporates a rotatable spindle having two axially separate screw-thread connections. The end cap is provided with holes for the passage of sterilizing fluid to and around the blade.
December 2, 1986
Date of Patent:
September 6, 1988
Duckworth & Kent Surgical Instruments Limited, Medical Titanium Corporation
Abstract: A two-part mould for moulding an article has the mould parts adapted to be moved together under vacuum to cause moulding material to be evenly distributed around a reinforcement structure. Sealing means for sealing the mold cavity against ambient atmosphere, comprises a primary seal operative during the movement of the mould parts, the action of the primary seal being assisted by a secondary seal which becomes effective when the mould parts reach the final closed position. A collection chamber is formed in one of the mould parts for collection of surplus resin through pinch-off means, including a flexible part, which closes off flow of resin into the collection chamber in the closed position, of the mould parts. The collection chamber is preferably located to permit drainage of resin back to the mould cavity until the pinch-off means becomes effective.
Abstract: A container for shipping and storing articles such as semi-conductor materials, comprises a first case member having a bottom wall, a second case member having an annular flange, and a supporting sheet having a thin flexible base film and an adhesive layer applied thereto. The adhesive layer is capable of tentatively adhering thereto an article to be packaged. The first and second case members is adapted to make with each other in a sealed manner and to cooperate to define an internal space therebetween when mated together. The supporting sheet is placed in said first case member with the adhesive layer facing toward the second case member and with the peripheral margin of the supporting sheet held between the bottom wall of the first case member and the annular flange of the second case member.
Abstract: An apparatus for reinflating an object such as a punctured automobile tire. The apparatus including a valve assembly having a housing with two inputs which are connected to an outlet through passageways within the housing. A valve is provided such that the input passageway which receives the output from a compressed air source is connected, in its normal position, to the outlet of the housing for connection to an automobile tire or inflatable object. The second input to the valve assembly is opened by placing the valve in the second position. The second position of the valve closes the first input from the compressor to the outlet and seals the first input from the second input. The second input includes a threaded fitting on an aerosol type can which seals the input to the housing as well as it seals with respect to the can to which it is attached.
Abstract: An assembly for supporting a glass globe having a recessed neck portion the globe is retained within a receptacle or holder by a separate arcuate band of metal which is compressed and resiliently retained within the receptacle and has formed on surface portions of its perimeter a pair of spaced extrusions or nibs which fit within the recess of the globe neck. The band is additionally provided with a threaded bushing for receipt of a screw which when seated in the bushing holds the band in position within the holder and provides, with the nibs, a three-point suspension for the globe.
May 6, 1987
Date of Patent:
August 16, 1988
Kidde Consumer Durables Corp.
John A. Fretz, III, Robert T. Gallagher
Abstract: 1,2,4-Triazolo[4,3-d]-4-azatricyclo[18.104.22.168.sup.3,8 ]-undecane and 3-derivatives and intermediates thereof are described. The compounds are useful and antiinflammatory and antihypoxia agents.
Abstract: A substantially uniform mesophase pitch is prepared by treating a mesophase forming pitch material at elevated temperatures above about 380.degree. C. to produce a mixture of mesophase and non-mesophase pitch containing about 20% to about 80% mesophase. The mixture is then maintained at a temperature below about 400.degree. C. for a time sufficient to allow the mesophase to coalesce and settle as a lower separable layer. A mesophase pitch so produced may contain from 90 to 100% mesophase with a softening point of less than 320.degree. C.