Patents Represented by Law Firm Snyder, Brown & Ramik
  • Patent number: 4317291
    Abstract: A device for treating solid and/or liquid materials comprises a drum driven for rotation about a horizontal axis by means of an endless chain.An expensive toothed rim surrounding the drum is avoided, as it is possible that the chain engages a toothless portion of the drum periphery.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: March 2, 1982
    Assignee: Expert N.V.
    Inventors: Marinus H. Weststrate, Jan Willemsen
  • Patent number: 4189237
    Abstract: A method of mixing concrete and containers for providing predetermined quantities of cement and aggregate to be transported to a site for on site mixing of concrete. The containers have two compartments which are self closing due to the weight of the contents, one compartment containing cement and the other aggregate. When placed on a ring-like support the compartments move relatively to release their contents. The hopper of the concrete mixer has a ring-like support to open the containers and has a water spray curtain to prevent the fine cement powder to be taken away by the wind, with the water spray providing the correct amount of water for the concrete.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: February 19, 1980
    Inventor: Willem J. H. Bake
  • Patent number: 4177659
    Abstract: A rapidly rotatable piercing tool for forming, substantially by frictional heat and pressure, a bossed hole in a metal plate or tube wall, said tool comprising a head of greater diameter, whereby a shoulder facing the leading end of the tool is formed for so shaping one of the end faces of the boss surrounding the hole, as to round off, to bevel off or to deepen said end face towards the hole in an annular region bordering the hole.
    Type: Grant
    Filed: January 24, 1978
    Date of Patent: December 11, 1979
    Assignee: Technisch Handels- en Adviesbureau van Geffen B.V.
    Inventor: Johannes A. van Geffen
  • Patent number: 4175413
    Abstract: A method of and an apparatus for forming by frictional heat and pressure a bossed hole in a metal plate or a tube wall with the aid of a rapidly rotating piercing tool, of which the axial feed is controlled, in such a manner, that during a predetermined time from the point of time, at which the tool comes into contact with the plate or tube wall the axial movement of the tool is slower and after that time said movement is faster than a movement of given speed.
    Type: Grant
    Filed: January 24, 1978
    Date of Patent: November 27, 1979
    Assignee: Technisch Handels- en Adviesbureau van Geffen B.V.
    Inventor: Johannes A. van Geffen
  • Patent number: 4175342
    Abstract: A suction dredger, comprising a vessel and a suspension conveying conduit provided with a pump and having a nozzle suspended by means of at least one cable of a lifting device on the vessel, is improved for preventing breaking of the cable or damage of other dredger parts. To this aim the lifting device comprises a cable length variator having a piston movable in a cylinder, a pick-up system for picking up the travel of the piston, a fluid conduit communicating with the cylinder for supplying and discharging fluid and control circuitry for controlling the supply and discharge of the fluid so in dependence on the travel picked up by the pick-up system, that the piston is pushed backwards into a prescribed stretch.
    Type: Grant
    Filed: February 23, 1976
    Date of Patent: November 27, 1979
    Assignee: Goyo Ballast Company Ltd.
    Inventors: Jan de Koning, Gerrit H. van Zeggelaar
  • Patent number: 4172539
    Abstract: An aerating or fluidizing device is located adjacent the gravity discharge opening of a hopper. The device is in the form of a flexible, resilient member fixed so that a marginal edge normally contacts and defines an interface with an associated surface. Air under pressure is fed to the interface in such fashion as to cause the marginal edge of the resilient member to flutter and allow the air to escape in randomly directed "puffs." The fluttering movement combined with the intermittent puffs of air causes pulverulent material to be agitated, aerated and/or fluidized as it passes to the discharge opening.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: October 30, 1979
    Assignee: Fruehauf Corporation
    Inventor: Lawrence A. Botkin
  • Patent number: 4170799
    Abstract: A swimming apparatus of restricted dimensions comprising a basin and a supporting device is provided, the supporting device being supported in the basin and having members for engaging a swimmer's trunk while being pivotable about at least two horizontal orthogonal axes in order to allow the swimmer mobility while keeping his center of gravity fixed.
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: October 16, 1979
    Inventor: Johannes B. Ratelband
  • Patent number: 4143931
    Abstract: A miniaturized electrical system comprises a number of electrical devices interconnected by conductive tape. The electrical devices and metal foil conductors are electrically connected in the system directly or indirectly to the metal foil conductors of the conductive tape and the entire system may be adhesively secured to the surfaces of a miniature device such as a doll house with the metal foil conductors fully covered and protected and adapted to be painted over so as not to be discernible. Brads are used to penetrate the conductive foils either to enhance the electrical connection between directly contacted foils or to establish electrical connection between foils separated by an adhesive strip. The kit of electrical devices and conductive tape features a miniaturized wall outlet which is physically secured to and electrically connected with the conductive tape by brads.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: March 13, 1979
    Assignee: Cir-Kit Concepts, Inc.
    Inventors: Vern E. Skare, Dana D. Sokol
  • Patent number: 4140542
    Abstract: A method and a device for recovering the various materials of a composite body having a restricted circumference as compared with its length, for example, cables; the object of the invention is to provide a possibility of recovering separately the constituents, particularly the metals, so that these metals maintain a high degree of purity and their original properties; the method is characterized by cutting the composite body along at least one transverse plane and at least one longitudinal plane and by subsequently sorting out the portions of materials reduced in size and separated from one another by the cutting operation; the device is characterized by a clipping apparatus for shortening the body into portions, by a splitting apparatus for cutting through each shortened portion at least along the longitudinal plane and by a sorting system, in which a degreasing section may be provided between the clipping section and the sorting section.
    Type: Grant
    Filed: December 3, 1976
    Date of Patent: February 20, 1979
    Assignee: Handelsmaatschappij OSBO B.V.
    Inventor: Leendert Visser
  • Patent number: 4138342
    Abstract: A device for separating water from light-weight and/or heavy substances contained therein. The separation takes place in a packet of parallel separation channels.In order to prevent that too many light-weight substances enter the upper separation channels, the flow into the upper separation channels is throttled.Also the lower separation channels may be throttled for restricting the heavy substances entering therein.
    Type: Grant
    Filed: April 19, 1977
    Date of Patent: February 6, 1979
    Assignees: Ballast-Nedam Groep N.V., Skimovex B.V.
    Inventors: Cornelis G. Middelbeek, Tjako A. Wolters, Jan B. Den Boer
  • Patent number: 4137783
    Abstract: The invention relates to a device for converting a rotary movement into an oscillating movement frequently employed in agricultural implements, comprising a rotatable driving shaft, a fly-wheel rigidly secured thereto, an oscillatorily driven body adapted to oscillate about an axis crossing or intersecting the driving shaft axis and a coupling element pivoted to said body and journalled eccentrically in the fly-wheel; to adjusting in a simple manner the magnitude of the oscillating movement or the amplitude thereof, the device is adapted in that the bearing of the coupling element in the fly-wheel is arranged in a displaceable manner for varying the eccentricity and hence the amplitude of the oscillatory movement.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: February 6, 1979
    Assignee: Multinorm B.V.
    Inventors: Pieter A. Oosterling, Antoine M. R. Baecke
  • Patent number: 4134239
    Abstract: The construction and method of constructing a burial field involves forming one or more tiers of burial chambers from commonly shared wall sections placed on a concrete slab or floor. The wall sections form natural drainage for the field and cover sections not only accommodate for earth fill and grass but also natural drainage into a water reservoir. The reservoir provides irrigation for the fill and the construction is at least partially above ground.
    Type: Grant
    Filed: April 19, 1977
    Date of Patent: January 16, 1979
    Inventor: Tulio E. Obonaga-Calle
  • Patent number: 4134005
    Abstract: A potter's oven includes an electrical heating element for controlling the temperature in the oven. Power to this heating element is controlled by a bimetallic switch and an electrically energized heater therefor and the percentage of power supplied to the oven heating element is controlled in dependence upon the value of resistance in series with the heater for the bimetallic switch. The value of this resistance is increased in stepwise fashion under control of at least one sensor which determines the outside wall temperature of the oven, the temperature at which the sensor responds being chosen to cause the temperature inside the oven to reach a predetermined value and to hold such value for a predetermined time.
    Type: Grant
    Filed: January 18, 1977
    Date of Patent: January 9, 1979
    Assignee: Keramisch Instituut Haarlem, B.V.
    Inventor: Hindrik E. H. Eppens
  • Patent number: 4133570
    Abstract: A hoisting apparatus includes a hoisting shank slidably engaged with a yoke, the yoke having parallelogram linkages which carry a pair of gripping jaws. The shank is connected with the jaws to spread them apart as the shank moves downwardly with respect to the yoke, and is provided with locking mechanism normally connecting the shank directly to the yoke. A work-engaging mechanism automatically releases the locking mechanism and allows the shank to shift upwardly with respect to the yoke and cause the jaws to grip a load.
    Type: Grant
    Filed: July 22, 1977
    Date of Patent: January 9, 1979
    Assignee: B. V. Nederlandse Kraanbouw Maatschappij NKM
    Inventors: Willem C. Hammink, Cornelis A. M. Verheul
  • Patent number: 4126089
    Abstract: A device for compressing crop into bales comprising a compression chamber having an inlet opening and a pressing member adapted to reciprocate along said opening and feeder mechanism for introducing the crop through the inlet opening into the compression chamber, which device is intended for making bales having a high specific weight; the device is able to be operated continuously.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: November 21, 1978
    Assignee: Expert N.V.
    Inventors: Pieter A. Oosterling, Adriaan Van Zweeden
  • Patent number: 4124299
    Abstract: A method of comparing circumferential shapes, particularly the outer circumference of a desired clearance wth the real clearance between obstacles arranged alongside a railway track, for example, signalling posts, overhead structures and quay walls, wherein from a point on the railway track, with the aid of field-glasses, in the viewing field of which is arranged an image of the outer circumference of the desired clearance made from a given distance, the real clearance is observed in the direction of length of the track at said given distance.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: November 7, 1978
    Assignee: Electrorail N.V.
    Inventor: Adriaan Heystek
  • Patent number: 4114814
    Abstract: The invention relates to an agricultural implement comprising a tool oscillating about a vertical axis, for example a spreading pipe of a fertilizer distributor, a mechanism for producing the oscillatory movement of the tool being formed by a rotatably driven flywheel and a coupling element eccentrically in said flywheel and engaging the tool or a holder thereof at a distance to said axis, and comprising a frame carrying the tool and the driving mechanism; the objects of the invention are to provide an improved frame, flywheel and toolholder respectively in particular the arrangement of the bearings relative to each other in order to achieve a more quiet run of the implement resulting in a light weight construction, longer lifetime and lower cost price.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: September 19, 1978
    Assignee: Multinorm, B.V.
    Inventors: Pieter Adriaan Oosterling, Antoine Marinus Rene Baecke
  • Patent number: 4110959
    Abstract: A mowing device comprises a transverse housing and cutters rotatably mounted thereon, each cutting member comprising at least one lower ring skimming the top surface of the housing and having a substantially circular, uninterrupted circumference, an upper ring covering the lower ring and at least one cutter fastened at the circumference of the cutting member between the upper and lower rings to a pin, the cutters of adjacent cutting members being relatively off-set in the circumferential direction. Upon an impact on a stone the cutter may bent over upwardly. In order to reduce the risk of damage of the cutting members and to maintain a more sharply defined level of the paths of the undamaged cutters the lower ring of each cutting member is left uncovered at the area of the passing path of each cutter of a neighboring cutting member.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: September 5, 1978
    Assignee: Multinorm, B.V.
    Inventors: Pieter Adriaan Oosterling, Hendricus Cornelis VAN Staveren
  • Patent number: 4099369
    Abstract: A mowing device having rotating cutting members above a transverse housing comprises a screen arranged near one end of said housing and having a front portion disposed in front of the outermost cutting member, viewed in the direction of travel, and being located just inside the outermost path of said cutting member but at a higher level than said cutting member. In order to provide a distinct separation between mown crop and the crop still to be cut the lower rim of the screen near the outermost cutting member is disposed further outwardly than the front portion and outside the outermost cutting member, the lower rim of the screen being located at a higher level than the supporting surface, that is to say, approximately at the cutting level of the outermost cutting member.
    Type: Grant
    Filed: October 5, 1976
    Date of Patent: July 11, 1978
    Assignee: Multinorm, B.V.
    Inventors: Pieter Adriaan Oosterling, Hendricus Cornelis VAN Staveren
  • Patent number: RE29709
    Abstract: An apparatus for cooling castings and cooling and drying moulding sand, comprising a horizontal drum rotatable about its longitudinal axis and having an inlet opening for castings and casting moulds at one end and an outlet opening for castings at the other end. The drum wall first has an impermeable part which is followed by a perforate part for the discharge of moulding sand. An underlying descriptive line of the drum viewed in the direction from the inlet end to the outlet end slopes upwardly at least for a part and this gives rise to several embodiments.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: July 25, 1978
    Assignee: Expert, N.V.
    Inventor: Herbert Vissers, deceased