Patents Represented by Law Firm Wells & Wells
  • Patent number: 4661585
    Abstract: Pulverulent polyamide coating compositions consisting of a mixture of similar polyamides having on the average at least nine aliphatically bound carbon atoms per carbonamide group and of different relative viscosity, the difference in relative viscosities amounting to at least 0.04 and at most 0.1 units.The mixtures are obtained by mixing powders prepared both by precipitation or by cold grinding or also by mixing the corresponding granulates which subsequently are then cold ground.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: April 28, 1987
    Assignee: Huls AG
    Inventors: Rainer Feldmann, Gunter Hess
  • Patent number: 4661410
    Abstract: The heat-hardenable binder mixture based on organic resins comprises an organic resin having primary and/or secondary and, if appropriate, also additional tertiary amino groups and a cross-linking agent based on an organic compound containing at least 2 carbalkoxymethyl groups. The binder mixture can additionally contain pigments, fillers, cross-linking catalysts, corrosion inhibitors and further finish auxiliaries. The binder mixture is used in a process for preparing coatings by applying a coating agent in the form of a film to a substrate and subsequently hardening the film by baking.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: April 28, 1987
    Assignee: BASF Farben & Fasern AG
    Inventor: Michael Geist
  • Patent number: 4650094
    Abstract: A regulator having turbulence generating device for controlling thrust. A differential piston (2) is biased by a spring (3) located in a discharge channel (8a) of a medium under pressure. The spring (3) is weighted in such a way that it is compressed at a given pressure within the container so that the differential piston (2) takes a first end position and decreases the opening of the discharge channel (8a) to a minimum. The spring (3) expands proportionally to the pressure drop due to the discharge of the medium (18) from the container and shifts the piston (2) so that the opening of the discharge channel (8a) increases gradually until the piston (2) has reached a second end position as soon as a given minimum pressure has been reached in the container.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: March 17, 1987
    Inventor: Winfried J. Werding
  • Patent number: 4649575
    Abstract: A toilet seat cover made from expanded polymer foam sheet material has an elastic tape secured to the curved edges of the cover with no tape secured to the rear flat edge. The cover is held on a toilet seat by the elastic curved edges.
    Type: Grant
    Filed: April 5, 1986
    Date of Patent: March 17, 1987
    Inventors: David R. Blair, Kathy I. Blair
  • Patent number: 4640054
    Abstract: Sashes and matching frames for windows and glazed doors, of which the shaped sections each consist of at least one inner hollow aluminum shaped section and one outer plastic casing are designed to substantially improve their thermal insulation.The invention provides a two-part hollow aluminum shaped section, the partial shaped sections so formed being separated thermally from each other approximately in the central region of the shaped section and the thermal separation consisting of the plastic of the outer coverings of the two partial shaped sections.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: February 3, 1987
    Assignee: Fulgurit GmbH & Co., Kommanditgesellschaft
    Inventors: Kurt Breimeier, Heinrich Eickhoff, Hans-Walter Erdmann, Hans D. Kuhnel
  • Patent number: 4639110
    Abstract: The application describes an automatic focusing system for photographic cameras. The system functions by means of an infrared light source and an infrared detector. The infrared radiation is focused as a function of object distance in such a manner on the detector that this detector is divided into two detector segments each of which supplies a partial current of which the ratio depends directly on the object distance. The detector is followed by an electronic computing circuit which sets the objective as a function of a preselection implemented by a switch to one of the following modes of operation:(a) the focus is on the object to be photographed(b) the depth of field is extended from the object toward the camera(c) the depth of field is extended from the object to the rear(d) the depth of field is extended from the object to infinity(e) the depth of field is extended to between two consecutively targeted objects.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: January 27, 1987
    Assignee: Minox GmbH
    Inventors: Juergen Rinn, Fritz Belitz
  • Patent number: 4638917
    Abstract: The invention concerns a tamper proof closure for a threaded mouth. The closure comprises a plastic cap provided by means of tear-off elements with a ring. If when the mouth is sealed the ring is still on the cap, then it displays the fact it was not opened yet. The ring is secured against a screwing-off motion by lock elements at the mouth. The ring is provided with at least one aperture entered by a catch on the cap. When the cap is rotated off, the catch destroys the ring. This can be facilitated by providing predetermined rupture sites in the shape of narrow connection strips between certain ring parts.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: January 27, 1987
    Assignee: Zeller Plastik Koehn, Graebner & Co.
    Inventor: Alois Persch
  • Patent number: 4635564
    Abstract: A furniture construction such as bookcases, shelves and room dividers is assembled without fasteners from three basic interlocking notched elements. The three elements are planar, longitudinal horizontal and vertical support elements and shelf units. The horizontal support elements and a first shelf unit form the base and the vertical support elements are interconnected with the base and additional shelving units by the notches in each of the elements. The vertical supports on the ends have the notches in the leading edges and the vertical supports intermediate the ends have the notches in the following edges.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: January 13, 1987
    Inventor: Stanton E. Baxter
  • Patent number: 4632545
    Abstract: A test device for setting motor-vehicle headlight beams is described, which essentially consists of a base plate (1) and the two open-up parts, namely the lens holder (2) and the test surface (3). The lens holder contains an aspheric lens (4) of which the optical axis (5) is parallel to the rest surface (6) of the base plate (1) and simultaneously perpendicular to the test surface when the device is in the opened-up, operational position. The lens is of such height and so corrected that the light of headlights mounted low, normally or high is passed without headlight elevation adjustment and is imaged on the test surface located approximately in the lens focus, and in that the test result is entirely independent of the particular headlight elevation.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: December 30, 1986
    Inventor: Rudi Schael
  • Patent number: 4632567
    Abstract: A vessel for receiving, transporting and mixing viscous, especially highly viscous, liquids, with a motor-driven mixing paddle which is located on a shaft arranged offset relative to the center of the vessel and driven in a to-and-fro movement, and the height of which is less than the height of the vessel, wherein the drive shaft (3) is arranged vertically and the cross-section of the vessel (1) is essentially square, the drive shaft (3) being arranged centrally in one of the four quadrants (8) of the vessel (1).
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: December 30, 1986
    Assignee: BASF Farben & Fasern A.G.
    Inventors: Georg F. Vock, Lutz Kuter
  • Patent number: 4631134
    Abstract: A process for the aeration of off-water or the like media in an aeration tank with the aid of an aeration face arranged below the water surface as well as an aeration device for carrying out this process in practice are described. The device comprises a rigid, self-supporting supporting body provided with throughholes or being of porous material and covered with an elastic diaphragm; air is supplied to the supporting face of the body at the center of gravity or a gravity line thereof into a deflecting region and from there to the periphery of the body which is slightly raised vis-a-vis the central region of the body, from where the air escapes with decreasing pressure into the water to be aerated. The aeration face can be adapted to be swivelled, and the cross-sectional area of the supporting body can be of pyramid, wedge, circular or frustoconical configuration or it can be vaulted in a concave or convex manner.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: December 23, 1986
    Inventor: Karl H. Schussler
  • Patent number: 4627876
    Abstract: The invention relates to a printing ink which is to be used for printing paper and which consists of pigment, an alkyd resin binder which has been modified with fatty acids having an iodine number below 20, and, if desired, further binder and further customary constituents, such as lubricants, solvents, thickeners and thixotropic agents. The alkyd resin is an epoxy alkyd resin having an acid number below 11 and is present in the printing ink in an amount of at least 40% by weight, based on the total binder content. It has been prepared by reacting(a) a fatty acid of 6-20 carbon atoms or a mixture of such acids or triglycerides thereof,(b) a polyol,(c) an epoxy resin having a molecular weight of 380-2,900, an epoxide equivalent weight of 175 to 2,050 and an ester equivalent weight of 80 to 200 and(d) a dicarboxylic acid, the proportion of the epoxy resin amounting to 1 to 40 mole %, based on the total amount of polyol and epoxy resin.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: December 9, 1986
    Assignee: BASF Farben & Fasern AG
    Inventors: Werner Fries, Karl-Wilhelm Klemm
  • Patent number: 4625900
    Abstract: Vehicle attached outboard motor mounts comprising a rectangular metal plate having an outboard motor support at the upper end and connectors at the bottom end for attachment of the mounts to spare tires, spare tire carriers, or bumpers. The metal plate has at least two bends which space the bottom end from the upper end while being parallel to one another. Braces extending from the upper end to the bottom end are optionally employed to stabilize the mounts.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: December 2, 1986
    Inventor: Darryl Lawson
  • Patent number: 4625504
    Abstract: A pitched cable is sheathed over a defined length with a plastic polyamide film. The method includes the steps of slipping a plastic polyamide tube over a pitched cable and affixing this tube to the cable by hammering. An additional procedural step is also described, namely the prior reduction of the outside diameter of the pitched cable, so that with appropriate dimensions of the plastic tube, it is possible to make a plastic sheathing for the pitched cable, with the outside diameter of the plastic tube then being only trivially larger than the outside diameter of the unsheathed cable length.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: December 2, 1986
    Assignee: Kuster & Co. GmbH
    Inventor: Franz Burghardt
  • Patent number: 4622117
    Abstract: The invention relates to a self-crosslinking heat-curable binder, in particular for electrocoating finishes, based on an organic synthetic resin which contains primary and/or secondary hydroxyl groups, esterified carboxyl groups and quaternary ammonium groups and can be diluted with water as a result of partial or complete neutralization with acids. The esterified carboxyl groups are activated in the alcohol component by a substituent which has a negative inductive effect.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: November 11, 1986
    Assignee: BASF Farben & Fasern AG
    Inventors: Michael Geist, Gunther Ott
  • Patent number: 4621989
    Abstract: In a pumping apparatus having a flexible diaphragm a disc is arranged for supporting the diaphragm. The support disc has holes through which the pump liquid passes. For preventing the diaphragm from being drawn into the holes plugs are inserted in the holes in such a way that openings or slots are formed which are sufficiently wide for the liquid to flow therethrough but are not wide enough for the diaphragm to be sucked into the support disc. The diaphragm is thus prevented from becoming damaged. Various embodiments of suitable plugs are illustrated which either form the narrow openings in combination with the surrounding wall of the holes in the support disc or are provided with holes or slots in the plug body.
    Type: Grant
    Filed: July 15, 1980
    Date of Patent: November 11, 1986
    Inventor: Herwig Burgert
  • Patent number: 4619165
    Abstract: An apparatus with a cutting device for cutting-off pieces of a wire comb binding material for binding packs of sheets with marginal perforation. The pieces to be cut-off from the material shall have an entire number of teeth. The apparatus has a guide and a conveying wheel for the material. A brake or a catch provides for the pitch-correct cutting of the material. An adjusting device for adjusting the conveying length is provided in the drive connection to the conveying wheel. For this purpose a sector gear wheel comprises partial sector gear wheels. These are rotatable and capable of being fixed with respect to one another. Alternatively, an eccent arrangement may be used for adjusting the conveying length. The radial eccenter distance of the arrangement is adjustable. A chain driven thereby is itself driving a chain wheel, which on its turn drives a catch wheel for driving the conveying wheel.
    Type: Grant
    Filed: January 3, 1985
    Date of Patent: October 28, 1986
    Inventor: Peter Renz
  • Patent number: 4618468
    Abstract: A process for controlling bead size in the production of expandable styrene polymers by suspension polymerization is carried out by adding protective colloids to the aqueous phase before polymerization begins, such protective colloids being used which are homogeneously soluble in water over the entire temperature range from 25.degree. to 125.degree. C. and in which the concentration range being employed shall not lower the boundary surface tension water/styrene below 18 N/mm.sup.2. Lastly, the protective colloids are selected according to their molecular weight and the weight ratio of aqueous to organic phase lies in the range of 0.9:1 to 1:1.25, preferably in the range of 1:1. A grain spectrum is maintained predominantly greater than 0.41 to less than 2.5 mm by varying the molecular weights of the protective colloids.
    Type: Grant
    Filed: August 27, 1984
    Date of Patent: October 21, 1986
    Assignee: Chemische Werke Huls Aktiengesellschaft
    Inventors: Josef K. Rigler, Horst Leithauser
  • Patent number: D287369
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: December 23, 1986
    Assignee: Ernst Leitz Wetzlar G.m.b.H.
    Inventors: Heinrich Janke, Alfred Hengst, Hans-Kurt Uellenberg
  • Patent number: D292412
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: October 20, 1987
    Assignee: Ernst Leitz Wetzlar G.m.b.H
    Inventors: Heinrich Janke, Alfred Hengst, Hans-Kurt Uellenberg