Patents by Inventor Fischer

Fischer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Biguanide salts
    Patent number: 4028402
    Abstract: Biguanide salts of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and n are as hereinafter set forth, are described. The aforementioned biguanides are useful as hypoglycemic agents.
    Type: Grant
    Filed: October 8, 1975
    Date of Patent: June 7, 1977
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Ulf Fischer, Eckehard Lorch
  • 4-(M,M'-DI-T-BUTYL-P-HYDROXYPHENYL) BUTYL-2 COMPOUNDS
    Patent number: 4026952
    Abstract: Novel 4-(m,m'-di-t-butyl-p-hydroxyphenyl)-butyl-2 compounds whihc are intermediates in the manufacture of dyes, pesticides and plastics auxiliaries, particularly stabilizers for polyolefins and polyamides. When molten, they form specific solvents for alkylphenols and are perfumes or form ingredients of perfume compositions having a fruity odor.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: May 31, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Roman Fischer, Werner Fliege, Wolfgang Keernig, Peter Horn
  • Apparatus for extracting bulk material from dumps
    Patent number: 4026423
    Abstract: An improved bulk extracting apparatus comprises a pivoted chain scraper conveyor which in the horizontal position acts to remove material from the transverse face of a dump. Various clearing means are provided to loosen material from the face of the dump which is then carried by gravity to feed the scraper conveyor. Alternatively, the scraper conveyor may be pivoted upwardly to clear the dump so that the apparatus may be easily moved either to a different dump or to a different position on the same dump. The scraper conveyor may also be partially lowered to act to remove material from a lateral side of the dump. Finally, stacking means may be additionally provided for adding material onto the dump such as for mixing purposes.
    Type: Grant
    Filed: September 24, 1975
    Date of Patent: May 31, 1977
    Assignee: Gustav Schade Maschinenfabrik
    Inventors: Fritz Schade, Gunter Strocker, Gerhard Fischer
  • Particulate oil-black masterbatch
    Patent number: 4026933
    Abstract: Synthetic rubber-black-plasticizer masterbatches are prepared in a particulate form, in contrast with their normal massed form, by a process which involves halogenating the rubber-black masterbatch after coagulation, but before addition of the plasticizer.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: May 31, 1977
    Assignee: Polysar Limited
    Inventors: Douglas Cameron Edwards, Erhardt Fischer
  • O-alkylsulfonylglycolic anilides
    Patent number: 4025544
    Abstract: New and valuable 0-(alkylsulfonyl)-glycolic anilides having a good herbicidal action, herbicides containing these compounds, a process for controlling the growth of unwanted plants with these compounds, and a process for their production.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: May 24, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Fischer, Hanspeter Hansen, Wolfgang Rohr
  • High speed wide angle objective lens system
    Patent number: 4025169
    Abstract: An extremely high speed wide angle objective lens system, wherein a reducing Newtonian finder telescope is arranged in front of an objective lens group which produces a real image on an image plane. Rules or conditions are stated, and several specific examples are given. In many of the examples, the back focus distance is relatively large, thus making the lens system suitable for use with a mirror reflex camera where room is needed for swinging the reflex mirror.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: May 24, 1977
    Assignee: Carl Zeiss-Stiftung
    Inventors: Helmut Fischer, Erhard Glatzel, Walter Jahn, Heinz Zajadatz
  • Twist brakes for projectiles
    Patent number: 4023495
    Abstract: An improved twist brake for the separable payload of a twist or spin-stabilized flare or smoke projectile is described. A pair of pivotable wings, secured at one end to a portion of a central shaft of the payload, is normally engaged by the inner surface of a guide shoe which prevents contact of the wing with the separable housing of the payload. Cooperable projections and slots on the guide shoe and the central support shaft prevent substantial axial and circumferential movement of the shoe, while permitting outward movement of the wings and the guide shoes when the payload separates from the housing. During such separation, the guide shoe is also separated from the wings so that the latter can pivot to their maximum extent to provide an optimum rotational braking action on the payload.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: May 17, 1977
    Assignee: Rheinmetall G.m.b.H.
    Inventors: Siegmar Fischer, Karl-Heinz Silligmann, Juergen Prochnow
  • Distance indicating mirror device
    Patent number: 4023029
    Abstract: A convex mirror has a frosted non-reflective elongated and horizontal line, approximately midway of the mirror and of a width less than the thickness of the mirror, and a light source is disposed adjacent the reflective surface with a colored filter positioned between the light source and the frosted line whereby a predetermined safe distance is indicated for changing lanes into a position in front of the immediately passed vehicle. In another mirror, safe turning distances are indicated by predetermined lines extending vertically of the convex mirror.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: May 10, 1977
    Inventor: Kenneth J. Fischer
  • Herbicide
    Patent number: 4021223
    Abstract: New and valuable herbicide comprising mixtures of benzofuranylalkylamino sulfonates, and methyl .alpha.-chloro-.beta.-(4-chlorophenyl)-propionate.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: May 3, 1977
    Assignee: BASF Aktiengesellschaft
    Inventor: Adolf Fischer, deceased
  • Magnetic bubble PROM memory
    Patent number: 4021791
    Abstract: A fast access, major-minor, magnetic bubble memory is provided by defining a separate set of address minor loops in addition to the minor loops of a main storage area in which data is stored. A search operation is restricted to the address loops, selected data being read out of the main storage area only after the selected address is acquired.
    Type: Grant
    Filed: April 20, 1976
    Date of Patent: May 3, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Andrew Henry Bobeck, Robert Frederick Fischer
  • Thiol carbamates
    Patent number: 4021222
    Abstract: The new compound S-(2,3-dichloroallyl)-(2,2,4-trimethylazetidine)-1-carbothiolate, herbicides containing this compound as active ingredient, a process for controlling the growth of unwanted plants with this compound, and a process for its manufacture.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: May 3, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Adolf Fischer, deceased, Hanspeter Hansen, Wolfgang Rohr
  • Method of dissolving a silver coating in a photo tank
    Patent number: 4021264
    Abstract: Silver coatings in photographic tanks are dissolved with an aqueous solution of an alkali mono or di peroxysulfate, an alkali bisulfate and thiourea.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: May 3, 1977
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Helmut Knorre, Joachim Fischer
  • Electrodynamic force measuring apparatus
    Patent number: 4020687
    Abstract: An electrodynamic force measuring apparatus comprising a force coil arranged in a stationary magnetic field and movable out of a null position by means of the force which is to be measured. The force coil is supplied with a current through the agency of an amplifier as a function of its deviation out of the null position as detected by a feeler. This current, under the action of the stationary magnetic field, produces a restoring force which forces back the force coil into the null position. The force coil is connected in series with a compensation coil which varies the field intensity of the stationary magnetic field. The compensation coil is dimensioned to alter the magnetic field resulting from the stationary magnetic field and the magnetic field produced by the current in the force coil in such a manner that the restoring force acting upon the force coil remains proportional to the current.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: May 3, 1977
    Inventor: Peter Fischer
  • Herbicides
    Patent number: 4021226
    Abstract: New and valuable herbicide based on 1-phenyl-4-amino-5-chloro (or -5-bromo)-pyridazone-(6) in the form of an aqueous suspension.
    Type: Grant
    Filed: October 8, 1975
    Date of Patent: May 3, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Preugschas, Ewald Daubach, Roman Fischer, Manfred Herrmann
  • Production of high molecular weight .alpha.,.beta.-unsaturated aldehydes
    Patent number: 4021411
    Abstract: A process for the production of high molecular weight .alpha.,.beta.-unsaturated aldehydes by alkylation of the .gamma.-carbon atom of a lower molecular weight .alpha.,.beta.-unsaturated aldehyde with a substituted allyl alcohol which has a chain branching in the 4-position carbon atom or a phenyl radical in the 4-position or of a corresponding allyl alcohol carboxylic ester at elevated temperature in the liquid phase.The products are valuable intermediates for the production of natural substances and odorants.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: May 3, 1977
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Norbert Goetz, Roman Fischer
  • Analytical reagent for cyanide
    Patent number: 4019860
    Abstract: In a method for the determination of cyanide wherein the cyanide is reacted with chloramine-T to form cyanogen chloride, said cyanogen chloride is reacted with pyridine to form glutaconic dialdehyde, and said dialdehyde is reacted with an organic compound to form a colored compound,Wherein the improvement comprises employing as said organic compound, N,N'-dialkyl barbituric acid, the alkyl groups being preferably each of 1-6 carbon atoms, and especially N,N'-dimethylbarbituric acid. The latter in a solution of dimethyl sulfoxide has a shelf life of at least one year.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: April 26, 1977
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Wolfgang Fischer, Renate Linck
  • Anchoring device for use in masonry and like structures and having protection against deleterious influences
    Patent number: 4019420
    Abstract: A first element is adapted to be received and anchored in a hole of a structure. An expander member is provided for expanding at least a leading end of the first element. A second element has a first portion located in the hole and connected with the expander member, and a second portion having a part which extends outwardly from the hole and is adapted to carry an object to be mounted on the structure. An axially yieldable protective sleeve sealingly surrounds the second element intermediate the expander member and the object so as to prevent the access of corrosion-producing media to the elements.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: April 26, 1977
    Inventor: Artur Fischer
  • Electrochemical storage cell
    Patent number: 4018969
    Abstract: An electrochemical storage cell or battery based on alkali metal and sulfur with at least one anode chamber containing alkali metal and one cathode chamber containing sulfur-alkali compounds separated from each other by an ion-conducting solid electrolyte wherein the sulfur-alkali compounds are at least partially dissolved in an organic liquid solvent with a boiling point above the operating temperature of the cell, the operating temperature being in the range of about 100.degree. to 200 C. The solvent permits lower operating temperature with reduced rate of corrosion.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: April 19, 1977
    Assignee: Brown, Boveri & Cie. A.G.
    Inventors: Wilfried Fischer, Herbert Kleinschmager, Wilheim Haar, Gert Weddigen, Franz-Josef Rohr
  • Process for demetalation and desulfurization of petroleum oils
    Patent number: 4016067
    Abstract: This invention is concerned with removing metal and sulfur contaminants from residual oil fractions by catalytic contact in a novel dual bed system. In this process the oil is first contacted with a catalyst comprising a Group VIB metal and an iron group metal oxide, such as a mixture of cobalt and molybdenum oxides, composited with an alumina support that contains delta or theta phase alumina, the catalyst having at least 60% of its pore volume in pores of 100A to 200A diameter, at least about 5% of its pore volume in pores having a diameter greater than 500A, and a surface area up to about 110m.sup.2 /g. The oil is then contacted with a second catalyst of the high surface-area, cobalt-molybdenum on alumina type. The second catalyst has a major fraction of its pores in the 30 to 100A diameter range.
    Type: Grant
    Filed: February 21, 1975
    Date of Patent: April 5, 1977
    Assignee: Mobil Oil Corporation
    Inventors: Ronald H. Fischer, Donald Milstein
  • Self-balancing hybrid circuit
    Patent number: RE29189
    Abstract: A self-balancing telephone-type hybrid having two sets of conjugate ports, wherein conjugacy is maintained between receiving and transmitting ports despite wide variations in impedance conditions at the line and/or balance ports. Included are means of differentiating between bridge unbalance due to impedance unbalance and that due to a signal being injected into the line port.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: April 19, 1977
    Assignee: GTE Automatic Electric Laboratories Incorporated
    Inventor: Russell C. Fischer