Patents Represented by Attorney John A. Robertson
  • Patent number: 4073215
    Abstract: The disclosure relates to a tooling set up and subplate means for machine tools wherein a subplate is provided with intersecting rows of openings; said rows precisely intersecting each other at right angles and some of said openings having precision locating bushings therein and others of said fixture openings being internally screwthreaded fixture openings. The locating openings are in rows adapted to be precisely aligned with the two axes of movement of the machine tool table and hold down means adapted to secure said subplate on the machine tool table and tooling members having fixture receiving openings and locating openings adapted to coincide with the respective openings in said subplate so as to precisely align tooling with the movement axes of a machine tool and to thereby alleviate the time usually devoted to the alignment of a piece of work on a machine tool with respect to its directions of movement.
    Type: Grant
    Filed: October 1, 1976
    Date of Patent: February 14, 1978
    Assignee: Stevens Engineering
    Inventors: Robert L. Coope, Lowell W. Munson
  • Patent number: 4057283
    Abstract: A motorcycle trailer comprising two body parts hingedly connected with each part having triangular sides and a rear wall on the upper part. A wheel suspension is secured to the lower part and comprises a pair of leaf springs having a transverse tubular member secured to their lower ends and a pair of shock absorbers between the tubular member and the lower body part. A pair of wheels are mounted on spindles at the ends of the tubular member. A pair of link assemblies hold the upper body part in an open position at an acute angle. A bed comprising two parts hingedly connected is positioned in the lower body part. With the bed in open position the part extending from the lower body part is supported by a pair of U shaped frames pivoted to the underside of that part. A canopy is supported by the partially open upper body part and a collapsible frame. A universal hitch is provided for attaching the trailer to the luggage rack of a motorcycle.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: November 8, 1977
    Assignee: Robert L. Howard
    Inventor: David L. Barnett
  • Patent number: 4049046
    Abstract: A solar heating and cooling system comprising a multi-tiered collector and heat exchanger that is mounted on a roof or installed in a vertical wall. Each tier of the exchanger includes a plurality of longitudinal channels with upper and lower manifolds communicating with all of the channels. A duct extends from each manifold into the premises being heated with one duct being connected to an air blower. The exchanger also includes an upper or outer flat metallic sheet with a perforated feed pipe extending across the upper end of this sheet and a drain pipe that communicates with the lower end of this sheet. A heat trap in the form of a transparent sheet is spaced from this sheet. A multi-decked, louvered, enclosed evaporator is mounted on the ground over a non-pressurized liquid storage tank with the upper end of the evaporator below the lower end of the exchanger.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: September 20, 1977
    Inventor: Mark N. Worthington
  • Patent number: 4042882
    Abstract: A signal for indicating the location of one or more people in distress comprising a rectangular tank containing helium, an inflatable balloon enclosed by a casing of aluminum foil and tubular connections between the tank and the balloon and which include valves. A radio transmitter is connected to the balloon by a short cable and a nylon cord which functions as a tether is connected to the transmitter. The other end of this tether is taken up on a reel. A trigger on the transmitter is tripped when the tether is payed out a predetermined distance to activate the transmitter. The balloon, the transmitter, and the reel are all mounted on the top of the tank together with a first aid survival kit and a cover which is hinged at one end to the tank encloses these elements. A clip is provided for securing the entire unit to the person of a user.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: August 16, 1977
    Inventors: Gustavo G. Camacho, Edward J. Shackleford
  • Patent number: 4033134
    Abstract: A heat engine comprising a cylindrical heat chamber having an end wall of insulating material and on which is mounted a cylinder. An opening in the end wall communicates between the heat chamber and the cylinder. The cylinder is surrounded by a cooling jacket and a piston reciprocates in the cylinder. The end of the cylinder remote from the end wall is open and a connecting rod has one end secured to the cylinder and the other end to a fly wheel. A second rod extends from the cylinder through the opening in the end wall and through another opening in a second end wall in the heat chamber. A disc like valve is slideably mounted on this rod and is moveable into a position opening and closing the opening. Cooperating elements of a dash pot are formed on the piston rod and valve at each end of the latter. A heat sink is provided on the lower side of the heat chamber and a throttle passage extends between the heat chamber and the cylinder.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: July 5, 1977
    Inventor: Arthur P. Bentley
  • Patent number: 4033588
    Abstract: This invention relates to a numbers game apparatus, among other things, for taking money, giving change, printing and giving out tickets, validating tickets, finding and checking winners, finding out the odds, and determining the amounts won by winning tickets. Apparatus is provided at a plurality of points remote from a central location where the money is taken, change, if any, is given, the amount bet is selected and a ticket is given out printed with, among other information, the numbers bet, the amount of the bet, the number, time, and date of the game, and the remote location. Also, at the remote locations, the winning numbers are posted and the local machine is prevented from accepting bets on a game just prior to numbers being drawn for that game. The ticket validation, the records, and the paying desk including manned payout windows and manned betting windows and of course the machine for drawing numbers is located at the central office or location.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: July 5, 1977
    Inventor: James P. Watts
  • Patent number: 4032195
    Abstract: A push-pull mining system comprising a pre-formed arrangement of personnel entry shafts, laterally extending service tunnels, flumes in the form of ditches extending substantially throughout each service tunnel, a holding tunnel at one side of each service tunnel and a chamber below the lowermost service tunnel at the end opposite to the holding tunnel for receiving a separation tank, a slurry mix tank, and an underground water reservoir. A mobile mining unit, comprising a mining machine at each end and carriers therebetween, is of substantially the same length as the holding tunnel. The mobile mining unit moves across the service tunnel to mine the opposing face and form a working tunnel which when finished is of the same length as the mobile unit. A mobile water station is mounted in the service tunnel and is connected to the mid-carrier which conveys the water to the mining machine at the end which is effective.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: June 28, 1977
    Inventor: Oliver B. Kilroy
  • Patent number: 4028013
    Abstract: A device for multiplying the effective pulsations on a column of liquid which operates an underground pump. The pulsations are created by a pulse generator at the ground surface and are transmitted through the column of liquid being pumped to operate the underground pump. The pulse multiplier is interposed in the single tube at the ground surface and is effective to partially divert the flow of liquid from the tube to a receiving tank when gas pockets in the column of liquid reach a predetermined degree and relieve the column of the gas pockets by by-passing the liquid under pulsations from the pulse generator back to the receiving tank.
    Type: Grant
    Filed: November 13, 1975
    Date of Patent: June 7, 1977
    Inventor: Arthur P. Bentley
  • Patent number: 4025119
    Abstract: A method of strip mining in which a plurality of vertical shafts of square cross section are formed closely adjacent to one another with each shaft extending through overburden and a layer of valuable material such as coal. As spoil is removed in forming one shaft it is conveyed to a previously formed shaft and deposited therein. The apparatus includes a casing of square cross section, a cylindrical auger casing within the square casing, an auger rotatable in the auger casing and a square cutter at the lower end of the square casing. The latter is slidably mounted on a vertical track and is power driven vertically to force the cutter into the earth formation being worked. The auger is rotated under power to cut into the earth formation and remove spoil and coal therefrom. The upper end portions of both casings are formed with two sets of aligned discharge ports. A movable closure is provided for each set and a rake for each set.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: May 24, 1977
    Inventor: James P. Watts
  • Patent number: 4013233
    Abstract: A ball mill including the usual drum and a trommel screen rotatable therewith together with mechanism for returning damaged balls and large pieces of aggregate directly from the trommel screen to the drum. This mechanism comprises a plurality of blades mounted on the inner surface of the cylindrical screen which pick up material in the trommel screen as an incident to rotation thereof and dump it onto a trough which extends from the screen to the drum. A jet of water is introduced into the trough at its outer end and passes the materials back into the drum.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: March 22, 1977
    Inventor: Kenneth G. Nylund
  • Patent number: 4004778
    Abstract: A portable roof winch comprising a collapsible frame that is adjustable to accommodate the slant of a roof, an extensible beam consisting of two telescoping parts one of which is pivotally mounted on the frame on a vertical axis and the other part being moveable with respect to the pivot and having a manually operable winch mounted thereon at a location adjacent to and spaced from the free end of the moveable part, together with a seat for an operator on the moveable part beyond the winch. A cable is taken up on the winch, extends along the beam and is passed over a pulley at the free end of the fixed beam part. A load engaging hook is attached to the end of this cable.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: January 25, 1977
    Inventor: George J. Steinhagen
  • Patent number: 4003345
    Abstract: An internal combustion engine in which heat is derived from the engine cooling system and/or the exhaust to heat a working fluid in a closed circulatory system. This heat transforms the working fluid into a gas which is delivered to a turbine which drives a generator. The generator delivers DC current to an electrolysis cell in which water is decomposed. The water is decomposed by the electric current into its oxygen and hydrogen components. The oxygen is passed to the air intake of the engine carburetors, while the hydrogen is conveyed to a carburetor therefor. Also included is a carburetor for conventional hydrocarbon fuels. The two carburetors are connected by linkage which may be operated either manually or by pressure to vary the ratio of the carbureted fuels which are delivered to the engine.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: January 18, 1977
    Inventor: Curtis E. Bradley
  • Patent number: 4003204
    Abstract: An internal combustion engine in which heat is derived from the engine cooling system and/or the exhaust to heat a working fluid in a closed circulatory system. This heat transforms the working fluid into a gas which is delivered to a turbine which drives a generator. The generator delivers DC current to an electrolysis cell in which water is decomposed. The water is decomposed by the electric current into its oxygen and hydrogen components. The oxygen is passed to the air intake of the engine carburetors, while the hydrogen is conveyed to a carburetor therefor. Also included is a carburetor for conventional hydrocarbon fuels. The two carburetors are connected by linkage which may be operated either manually or by pressure to vary the ratio of the carbureted fuels which are delivered to the engine.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: January 18, 1977
    Inventor: Curtis E. Bradley
  • Patent number: 4003344
    Abstract: An internal combustion engine in which heat is derived from the engine cooling system and/or the exhaust to heat a working fluid in a closed circulatory system. This heat transforms the working fluid into a gas which is delivered to a turbine which drives a generator. The generator delivers DC current to an electrolysis cell in which water is decomposed. The water is decomposed by the electric current into its oxygen and hydrogen components. The oxygen is passed to the air intake of the engine carburetors, while the hydrogen is conveyed to a carburetor therefor. Also included is a carburetor for conventional hydrocarbon fuels. The two carburetors are connected by linkage which may be operated either manually or by pressure to vary the ratio of the carbureted fuels which are delivered to the engine.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: January 18, 1977
    Inventor: Curtis E. Bradley
  • Patent number: 3998423
    Abstract: A combination die and pallet of honeycombed construction comprising an upper rectangular die plate having frusto conical depressions stamped therein and side and end flanges integrally joined to and depending from the die plate together with a base plate of the same size and shape as the die plate formed with longitudinal ribs pressed therefrom and extending between rows of depressions in the die plate with the base plate being spot welded to the bottom of the depressions and to the lower edges of the flanges.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: December 21, 1976
    Inventor: Wayne L. Mullins
  • Patent number: 3993354
    Abstract: A hydraulic mining system for a mine including a plurality of horizontal stopes each of which has a mining face. The apparatus comprises a main slurry mix tank at the lowermost stope, a hydraulic mining device in each stope, slurry forming mechanism in each stope for converting mined ore into slurry form, a flexible conduit extending from each stope to the main slurry mix tank for conveying mined ore in slurry form to the mix tank, an upflow tube having its lower end at said slurry mix tank and extending upwardly to the ground surface, and a pump for moving slurry upwardly in said tube.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: November 23, 1976
    Inventor: Oliver B. Kilroy
  • Patent number: 3974538
    Abstract: A turquoise scrubber comprising a base and a casing upstanding from the base and having closed and open ends. A motor driven shaft extends through the casing centrally thereof and is journalled in supports upstanding from the base. A cylindrical screen is driveably mounted on the shaft and is spaced from the casing. A motor driven brush is swingably mounted on the base and extends into the screen. A discharge scoop is carried by a frame that is pivoted on the shaft and is located within the screen where it is adapted to be either spaced from the screen or have its leading edge in engagement therewith. Mechanism is provided to impart a limited arcuate movement to the scoop in reverse directions. A loading chute is positioned at the open face of the casing and includes a tube which extends into the screen. An exhaust conduit communicates with the closed end of the casing to withdraw fumes therefrom.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: August 17, 1976
    Inventor: Kenneth G. Nylund
  • Patent number: 3965709
    Abstract: A bicycle lock comprising three units, namely, a ring assembly, a wire cable and a padlock. The ring assembly includes an arcuate tubular ring having a gap therein. A solid metallic rod is slidable in the ring and has a gap therein. The ring is formed on its outer contour with a slot that is closed at both ends. A stem passes through this slot and its inner end is secured to the rod which is moveable into positions either opening or closing the gap in the ring. The ring is formed with two passages either of which is adapted to receive the hasp of the padlock. A transverse bracket on the ring is attached to the frame of a bicycle wheel. The wire cable is formed with a loop at each end. One loop is permanently attached to the ring and the other loop receives a portion of the solid rod when the latter closes the gap in the ring. In unlocked position the latter loop receives the hasp of the padlock which is passed through one of said passages.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: June 29, 1976
    Assignee: David P. Belke
    Inventor: Carl F. Belke
  • Patent number: 3957109
    Abstract: A solar heating and cooling system comprising a double tiered solar collector and heat exchanger that is mounted on a roof at an angle ranging from 30.degree. to 45.degree. with respect to the horizontal, with its upper surface being blackened. Each tier of the heat exchanger includes a series of longitudinal channels, there being upper and lower manifolds communicating with all of the channels. A duct depends from the middle of the upper channel and is connected to an air blower that takes air from the premises being heated or cooled. Another pair of ducts depend from the lower manifold at the opposite end thereof and discharge heated air into the premises. A heat trap in the form of a transparent plastic sheet is removably mounted above the collector and heat exchanger in close proximity thereto.
    Type: Grant
    Filed: October 31, 1974
    Date of Patent: May 18, 1976
    Inventor: Mark N. Worthington
  • Patent number: 3952858
    Abstract: Apparatus for collecting and loading auger spoil comprising a spinning plate having a central opening co-axial with an auger hole, power means for rotating said spinning plate; a fixed circular wall structure spaced from the periphery of the spinning plate, having a lower edge spaced from the upper surface of said spinning plate and formed with a gap; a conveyor belt having one end located at said gap; and a series of rings detachably secured together in stepped relation with the outermost ring connected to the spinning plate at the edge defining the opening therein whereby one or more of said rings may be removed from or added to said series to provide a plate opening of the same diameter as that of a particular auger hole.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: April 27, 1976
    Inventor: James P. Watts