Patents Represented by Law Firm Bachman and LaPointe
  • Patent number: 4287834
    Abstract: The stops of a draft gear housing of a rail car central coupler have to meet relatively large tractive and compressive forces in service. Up to now the expense involved in the fastening of such stops has been very great. In many cases, where the stops or bearings were joined to the center or stub sill, cracks formed and/or the sill became deformed. This incurs considerable expense for repairs and means a loss of service while the vehicle is being repaired. In accordance with the instant disclosure, to avoid such problems the center or stub sill of the rail car is now made such that the front stop and the rear stop are integral parts of the sill.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: September 8, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Jurg Zehnder, Erich Neumeier
  • Patent number: 4283895
    Abstract: A thermally improved expanded store front system is disclosed including vertical mullions and horizontal members. The vertical mullions comprise a structural mullion portion which is securely attached to the sill and head members and an exterior mullion half removably secured by anchor means to said structural mullion. The mullions when assembled are adapted to receive clip means which secure the horizontal members in place without the need for screws thereby allowing the members to expand and contract without undue stress. The vertical mullions and horizontal members, which are cut to predetermined lengths may be easily spliced for typical multi-story applications.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: August 18, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventor: Ronald D. Sukolics
  • Patent number: 4274550
    Abstract: The present invention relates to a low cost throwaway medicament dispensing device characterized by structural integrity for dispensing a medicament to a user in a time controlled manner so as to discourage the taking of an overdose of the medicament by the user without interfering with the dispensing of a prescribed amount of the medicament.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: June 23, 1981
    Assignee: Myer B. Shimelman
    Inventor: George Feldstein
  • Patent number: 4274541
    Abstract: A closure system for containers, particularly semi-rigid containers has inlet- and outlet opening which can be varied in size, and can be covered by an adhesive strip. A tongue is formed by an essentially U-shaped cut in the container wall and may be raised up for opening the filling opening of the container, and on the innermost side of the container wall, on the area beyond the hinge line of the tongue, a piece of foil is adhesively fixed or sealed on which--on opening the closure system by tearing further the tongue cut line at its ends to form a larger emptying opening--is suitable for guiding the tear along its edge and thus determines the course of the tear lines.
    Type: Grant
    Filed: November 28, 1978
    Date of Patent: June 23, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Werner Festag, Hans-Ueli Muller, Oldrich Stanek
  • Patent number: 4266416
    Abstract: The invention concerns device for the manufacture of blisters with high barrier properties using metal-plastic composite foils which can be deep drawn, in particular an aluminum-plastic composite foil which is clamped firmly in the clamping facility of a device for manufacturing blisters. The process is such that the composite foil is pre-stretched in a first step and then shaped into a blister in a second step.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: May 12, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Werner Festag, Hans-Ueli Muller
  • Patent number: 4267239
    Abstract: Improved coating compositions for use in diversified applications, curable by permeation of a tertiary amine vapor or without permeation at room temperature. The composition and the coating process are characterized by the modification of an alkyd resin, having free hydroxyl groups, by reaction with p-hydroxybenzoic acid. The coatings display good flexibility and high gloss as well as good color retention and good adhesion to substrates.
    Type: Grant
    Filed: September 19, 1979
    Date of Patent: May 12, 1981
    Assignee: J.G.L. Chemicals Ltd.
    Inventors: Chacko Thankachan, John G. Ritchie, Eugene Sahayada, Asok Sengupta
  • Patent number: 4265343
    Abstract: A controlled wheel braking system for vehicles wherein fluid pressure on the wheel brake cylinder is relieved at the moment of wheel lock up so as to prohibit skidding and at the same time optimize the braking of the vehicle. The system includes a control valve positioned in the brake fluid line between the master cylinder and the wheel brake cylinder which is responsive to imminent wheel lock up. The control valve senses wheel lock up and upon sensing bleeds brake fluid from the wheel brake cylinder thereby preventing skidding.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: May 5, 1981
    Inventor: Fred C. Stevens
  • Patent number: 4265659
    Abstract: The present invention provides a highly efficient, ceramic foam material for filtering molten metal which is characterized by improved strength reliability. The filter of the present invention is prepared by impregnating an organic foam material with an aqueous ceramic slurry containing ceramic fibers. In accordance with the present invention it has been found that it is possible to prepare a low cost, porous ceramic filtration medium having improved strength reliability.
    Type: Grant
    Filed: October 9, 1979
    Date of Patent: May 5, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventor: James C. Blome
  • Patent number: 4261807
    Abstract: Longitudinally arranged electrolytic cells for the production of aluminum in particular, incur high investment and operating costs due to the arrangement of the busbars outside the cells. These busbars induce magnetic fields which in turn cause stirring effects in the metal in the cell.If at least the last cathode bar ends (in terms of the direction of flow I of current) on both sides of the cell are connected via busbars to the end of the anode beam at the current ingoing end of the next cell or the other end of the anode beam, this gives rise to an asymmetry which eliminates the harmful effects of the magnetic fields and helps to lower the investment and operational costs.
    Type: Grant
    Filed: March 20, 1980
    Date of Patent: April 14, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventor: Jean M. Blanc
  • Patent number: 4256488
    Abstract: Moderate strength extrudable dilute Al-Mg-Si aluminum base alloys are prepared comprising from 0.30 to 0.60% magnesium, from 0.45 to 0.70% silicon and from 0.10 to 0.30% copper, which may also include controlled amounts of elements such as chromium, zirconium, manganese, iron, zinc and titanium, wherein the silicon content must not exceed more than 0.30% over that needed to combine with magnesium and iron. Such alloys display lower hot flow stresses and reduced quench sensitivity as compared to AA Alloy 6063 while achieving the same strength levels.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: March 17, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventor: Ronald J. Livak
  • Patent number: 4253584
    Abstract: The process of the present invention allows the manufacture of lacquered aluminum or tin-plate rings which have the inner edge thereof bent over outwards so that they are suitable for the closures on cans for foodstuffs. A ring blank made of lacquered sheet is pre-shaped by deep drawing to form the curvature needed for bending over the inner cut edge. The final shaping of the pre-shaped blank into a ring for a can lid takes place, after stamping out the opening, by stretching and bending over the cut edge. When a tear-back membrane is sealed on to the bent-over edge, the ring is suitable as an easyly opened closure for cans for foodstuffs.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: March 3, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Siegfried Bloeck, Rudolf Luthi
  • Patent number: 4250950
    Abstract: A mold for casting metals is provided with a roughened surface so that, on first contact of the mold with the melt, heat transfer is controlled in such a way that the melt comes into contact only with the peaks of the projections on the mold surface and an air gap is formed between the melt and the valleys on the surface. The pattern of roughness on the mold surface comprises a uniform arrangement of pyramidal or blunted-cone shaped projections. Neighboring projections are spaced a distance d of 0.05 to 1 mm apart and have a height h of 0.1d<h<d. The pyramid or blunted con surfaces satisfy the condition of 0.05<.function./d.sup.2 <0.5. A process which does not involve deformation is preferred for producing the rough pattern, for example, a photochemical etching process. The molds are suitable for many casting processes, in particular for continuous D.C. ingot or strip casting with moving molds and caterpillar track type mold belts.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: February 17, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Kurt Buxmann, Martin Bolliger, Ivan Gyongyos
  • Patent number: 4250220
    Abstract: The present invention concerns a composite panel with two cover sheets and between these a core made from a mixture of a granular filler material and a binding agent. The resultant panel meets the requirements governing incombustible building components in various countries, and can therefore be put in the class of incombustible building components.The core material used in known composite panels can be inorganic and incombustible, but all such composite panels known to date suffer from severe disadvantages.To avoid these disadvantages 100 parts by weight of the core material of the panel contains: 85-95 wt % of granular filler material which has an average particle size of over 100 .mu.m and at least 50 wt % Al(OH).sub.3 and 5-15 wt % of a binding agent.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: February 10, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Reinhard Schlatter, Arnold Grass
  • Patent number: 4249518
    Abstract: The present invention resides in a method and apparatus for maintaining a substantially constant salt density gradient in a non-convecting salt gradient pond. The apparatus for carrying out the method of the present invention enables one to maintain a substantially constant salt density gradient automatically in a highly efficient, simple and economic manner.
    Type: Grant
    Filed: October 22, 1979
    Date of Patent: February 10, 1981
    Inventor: Rush D. Holt
  • Patent number: 4248332
    Abstract: The present invention is drawn to a fluid gear coupling in which the lock up RPM between the drive member or power input shaft and the driven member or power output shaft is variable depending on the torque or power applied to the drive member or power input shaft. The present invention employs valves on the drive member which close off the exit ports of a pump disposed between the drive member and the driven member which are responsive to both pressure and centrifugal force. In the preferred embodiment of the present invention, check valves are provided in the main inlet ports of the pump along with auxiliary inlet ports so as to brake the device and prevent freewheeling upon deceleration.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: February 3, 1981
    Inventor: Wilfred C. Noyes
  • Patent number: 4248849
    Abstract: The invention relates to a continuous, two-stage process for complete dehydration and subsequent calcination of aluminum fluoride hydrates.The known processes used for this purpose are satisfactory for producing relatively small quantities of aluminum fluoride. In the production of larger quantities of aluminum fluoride however several problems arise with respect to trouble free control and supervision of the process and maintainance of the equipment.The disadvantages which up to now have been mainly due to the process itself are removed by the combination of the following process steps:(a) Dehydrating the aluminum fluoride hydrate in a first step, to produce aluminum semi-hydrate AlF.sub.3.0.5H.sub.2 O by means of a generally known method(b) heating the aluminum semi-hydrate in a second stage in an indirectly heated, horizontal rotary kiln to remove the remaining water of crystallization, and then calcining at ca. 500.degree.-600.degree. C.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: February 3, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Arankathu Skaria, Reiner Stark
  • Patent number: 4247381
    Abstract: The new conductor facility for electrodes, in particular for electrodes immersed in corrosive molten salts, features the following components:(a) A graphite pipe or tube which is open at both ends, fits tightly into a recess in the electrode and passes through the furnace or cell wall or roof.(b) A metallic electrical conductor, which is positioned inside the graphite pipe and can be pushed forward inside it, is made of a metal with a melting point lower than the temperature of the molten salt charge and makes contact with the electrode in the liquid state at the operating temperature of the furnace or cell.(c) A protective pipe, which surrounds the graphite pipe and is made of a dense, electrically insulating ceramic material, has one end tightly embedded in the electrode and the other end passing through the wall or roof, and is stable under the operating conditions of the furnace or cell.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: January 27, 1981
    Assignee: Swiss Aluminum Ltd.
    Inventors: Joachim Schirnig, Hanspeter Alder, Jobst Weber
  • Patent number: 4244791
    Abstract: The object of this invention was to find a Sn.sup.II -containing electrolyte for galvanizing or coloring anodized aluminum and its alloys which, in the first place, contains substances which stabilize Sn.sup.II better than substances used up to now for this purpose, secondly, exhibits better throwing power and therefore better current distribution and thirdly is not harmful to the environment, or at least not to such a degree as the electrolytes used up to now. The electrolyte of the invention is such that it contains one or more additives having the general structure R.sub.1 --S--R.sub.2, where R.sub.1 can be a hydrogen atom or a hydrocarbon group with or without a hydroxy or carboxy group, R.sub.2 a hydrocarbon with hydroxy or carboxy group. A particularly preferred additive is 2.2'-di-hydroxy-di-ethyl-thio-ether (or 2.2'-thio-di-ethanol) HOCH.sub.2 CH.sub.2 --S--CH.sub.2 CH.sub.2 OH.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: January 13, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Jean F. Paulet, Bruno Boetsch
  • Patent number: 4243502
    Abstract: A wettable cathode for an electrolytic cell for the electrolysis of a molten charge, in particular for the production of aluminum, where the said cathode comprises individual, exchangeable elements each with a component part for the supply of electrical power. The elements are connected electrically, via a supporting element, by molten metal which has separated out in the process. The interpolar distance between the anodes and the vertically movable cathode elements is at most 2 cm.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: January 6, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventor: Tibor Kugler
  • Patent number: 4242300
    Abstract: Disclosure teaches a method for rapid processing parisons, especially a method for maintaining a relatively elevated inside temperature of said parison at the time of its removal from the parison mold characterized by removing the core from the parison while confining it on its outside and while maintaining a positive fluid pressure on the inside of the parison whereby a neck mold may be kept in engagement with the parison.
    Type: Grant
    Filed: December 12, 1978
    Date of Patent: December 30, 1980
    Inventor: Emery I. Valyi