Patents by Inventor Rudolf Wehrli
Rudolf Wehrli 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).
-
Patent number: 5048157Abstract: The drafting arrangement is provided with a guide element between the front roller pair and the operative unit formed by an apron and a roller. The guide element is disposed for guiding a length of fiber between the roller of the operative unit and the front roller pair. The guide element may be of D-shaped cross-section, circular cross-section or in the form of a curved plate. Where cylindrical, the guide element may also be rotated.Type: GrantFiled: July 10, 1989Date of Patent: September 17, 1991Assignee: Rieter Machine Works, Ltd.Inventor: Rudolf Wehrli
-
Patent number: 5016323Abstract: The drawframe has a preliminary drafting zone with a draft of from 4 to 8 as well as a main drafting zone with a draft of at least 30. In addition, a deflecting rod is disposed in the preliminary drafting zone in order to deflect the flow of fiber by about 1 millimeter. The deflecting rod is positioned centrally between the nips of the rollers defining the preliminary drafting zone. The guide surface of the deflecting rod may be convexly rounded not only transversely but also longitudinally in guiding the fiber flow thereover.Type: GrantFiled: August 31, 1989Date of Patent: May 21, 1991Assignee: Rieter Machine Works, Ltd.Inventors: Rudolf Wehrli, Herbert Stalder
-
Patent number: 4782087Abstract: Prop-1-ynyl-3-phenoxybenzyl-2,2-dimethyl-3-(2',2'-dihalovinyl)-cyclopropane -1-carboxylates of the formula ##STR1## in which X.sub.1 if fluorine, chlorine or bromine, and their use in combating pests.Type: GrantFiled: June 6, 1983Date of Patent: November 1, 1988Assignee: Ciba-Geigy CorporationInventors: Saleem Farooq, Peter Ackermann, Jozef Drabek, Laurenz Gsell, Odd Kristiansen, Rudolf Wehrli
-
Patent number: 4490375Abstract: 4-N,N-Dimethylcarbamoyloxy-6-aminopyrimidines, and salts thereof, of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently of one another are each hydrogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -haloalkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.2 -C.sub.5 -alkenyl or C.sub.2 -C.sub.5 -alkynyl, or together they are a C.sub.2 -C.sub.5 -alkylene group, R.sub.3 is halogen or C.sub.1 -C.sub.5 -alkyl, and R.sub.4 is C.sub.1 -C.sub.5 -alkyl, or R.sub.3 is hydrogen and R.sub.4 is C.sub.2 -C.sub.5 -alkyl.There are described a process for producing these pyrimidines, their use for combating pests, and also the intermediates of the formula ##STR2## wherein R.sub.1 and R.sub.2 independently of one another are each hydrogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -haloalkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.2 -C.sub.5 -alkenyl or C.sub.2 -C.sub.5 -alkynyl, or together they are a C.sub.2 -C.sub.5 -alkylene group, R.sub.3 is halogen or C.sub.1 -C.sub.5 -alkyl, and R.sub.4 is C.sub.1 -C.sub.5 -alkyl, or R.Type: GrantFiled: November 18, 1982Date of Patent: December 25, 1984Assignee: Ciba-Geigy CorporationInventors: Karl Hoegerle, Laurenz Gsell, Rudolf Wehrli
-
Patent number: 4391810Abstract: 2-Methyl-4-N,N-dimethylcarbamoyloxy-6-amino-pyrimidines, and salts thereof, of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen, C.sub.1 -C.sub.5 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.2 -C.sub.5 -alkenyl or C.sub.2 -C.sub.5 -alkynyl, or together they are a C.sub.2 -C.sub.5 -alkylene group; a process for producing these pyrimidines; and their use for combating pests.Type: GrantFiled: December 30, 1981Date of Patent: July 5, 1983Assignee: Ciba-Geigy CorporationInventors: Karl Hoegerle, Laurenz Gsell, Rudolf Wehrli
-
Patent number: 4378372Abstract: The invention relates to cyclopropanecarboxylic acid esters of the formula ##STR1## wherein X.sub.1 is methyl or halogen, R.sub.1 is hydrogen, cyano, --CSNH.sub.2, allenyl, C.sub.2 -C.sub.3 alkenyl or C.sub.2 -C.sub.3 alkynyl, and R.sub.2 is unsubstituted or substituted alkenyl or alkynyl.A process for obtaining these compounds and their use in pest control are also disclosed.Type: GrantFiled: February 19, 1982Date of Patent: March 29, 1983Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Laurenz Gsell, Rudolf Wehrli
-
Patent number: 4377593Abstract: The invention relates to .alpha.-isopropyl- and .alpha.-cyclopropylphenylacetates of the formula ##STR1## wherein R.sub.1 is hydrogen, cyano, --CSNH.sub.2, allenyl, C.sub.2 -C.sub.3 alkenyl or C.sub.2 -C.sub.3 alkynyl, R.sub.2 is unsubstituted or substituted alkenyl or alkynyl, R.sub.3 is isopropyl or cyclopropyl, and each of R.sub.4 and R.sub.5 is halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, or both together are the methylenedioxy radical.A process for the production of these compounds and their use in pest control are disclosed.Type: GrantFiled: February 19, 1982Date of Patent: March 22, 1983Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Laurenz Gsell, Rudolf Wehrli
-
Patent number: 4377532Abstract: The invention relates to 3-phenoxybenzyl compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, cyano, --CSNH.sub.2, C.sub.2 -C.sub.3 alkenyl or C.sub.2 -C.sub.3 alkynyl and R.sub.2 is alkenyl or alkynyl, as intermediates for the production of biocides.The preparation of the 3-phenoxybenzaldehydes employed as intermediates is described. Novel 3-phenoxybenzaldehydes used as starting materials and the production thereof are also disclosed.Type: GrantFiled: February 19, 1982Date of Patent: March 22, 1983Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Laurenz Gsell, Rudolf Wehrli
-
Patent number: 4349567Abstract: Cyclopropanecarboxylic acid esters of the formula ##STR1## wherein R.sub.1 is hydrogen, halogen, methyl, trifluoromethyl or methoxy, and X.sub.1 and X.sub.2 are each halogen.A process for producing the above compounds and their use in pest control, as well as .alpha.-haloethynyl-3-phenoxy-benzyl alcohols.Type: GrantFiled: August 4, 1980Date of Patent: September 14, 1982Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Jozef Drabek, Saleem Farooq, Laurenz Gsell, Odd Kristiansen, Rudolf Wehrli
-
Patent number: 4348408Abstract: The invention describes cyclopropanecarboxylic acid .alpha.-allenyl-3-phenoxybenzyl esters of the formula ##STR1## wherein X.sub.1 is halogen and each of Y.sub.1 and Y.sub.2 is hydrogen or halogen, a process for the production of these compounds, and the use thereof for controlling a variety of pests of animals and plants. The intermediates of the formula ##STR2## wherein X is hydroxyl or halogen and each of Y.sub.1 and Y.sub.2 is hydrogen or halogen, are also described.Type: GrantFiled: August 12, 1981Date of Patent: September 7, 1982Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Laurenz Gsell, Rudolf Wehrli
-
Patent number: 4338468Abstract: .alpha.-Prop-1-ynyl-3-phenoxybenzyl alcohols of the formula ##STR1## wherein Y represents hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.3 alkoxy, cyano or dimethylamino, a process for their manufacture and their use as intermediates for the synthesis of compounds which are suitable for pest control, and which are especially suitable because of their low fish toxicity, for the control of rice pests e.g. Chilo suppressalis in rice paddies where fish are kept.Type: GrantFiled: December 9, 1980Date of Patent: July 6, 1982Assignee: Ciba-Geigy CorporationInventors: Saleem Farooq, Peter Ackermann, Jozef Drabek, Laurenz Gsell, Odd Kristiansen, Rudolf Wehrli
-
Patent number: 4335118Abstract: Phenylacetates of the formula ##STR1## wherein R.sub.1 is isopropyl or cyclopropyl, R.sub.2 is hydrogen, cyano, ethynyl, prop-1-ynyl or --CSNH.sub.2, and X.sub.1 is hydrogen, methyl, fluorine or chlorine, a process for their production and method of use thereof in pest control.Type: GrantFiled: October 9, 1980Date of Patent: June 15, 1982Assignee: Ciba-Geigy CorporationInventors: Hanspeter Fischer, Rudolph C. Thummel, Rudolf Wehrli
-
Patent number: 4331682Abstract: Cyclopropanecarboxylic acid-.alpha.-haloethynyl-m-phenoxybenzyl esters of the formula ##STR1## wherein R.sub.1 is ##STR2## R.sub.2 is hydrogen, fluorine, chlorine, bromine, methyl, trifluoromethyl or methoxy, andX.sub.1 is halogen,processes for producing them, and their use for combating insect pests.Type: GrantFiled: March 2, 1981Date of Patent: May 25, 1982Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Jozef Drabek, Saleem Farooq, Laurenz Gsell, Odd Kristiansen, Rudolf Wehrli
-
Patent number: 4309555Abstract: 1-(Dicyano-trimethylsiloxy)methyl-2,2-dimethylcyclopropane derivatives of the formula ##STR1## wherein R.sub.1 is ##STR2## and X.sub.1 is halogen. A process for the production of these compounds and their use as intermediates for obtaining biocidal compounds is described.Type: GrantFiled: December 9, 1980Date of Patent: January 5, 1982Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Jozef Drabek, Saleem Farooq, Laurenz Gsell, Rudolf Wehrli
-
Patent number: 4277494Abstract: Acetates of the formula ##STR1## wherein X.sub.1 represents hydrogen, halogen or C.sub.1 -C.sub.4 alkyl, X.sub.2 represents hydrogen or halogen, and Y represents hydrogen, halogen or methyl, processes for their manufacture and a method of controlling pests which comprises the use of these compounds.Type: GrantFiled: June 18, 1979Date of Patent: July 7, 1981Assignee: Ciba-Geigy CorporationInventors: Saleem Farooq, Peter Ackermann, Jozef Drabek, Laurenz Gsell, Odd Kristiansen, Rudolf Wehrli
-
Patent number: 4265897Abstract: Triazolylcarbamates of the formula ##STR1## wherein R.sub.1 is hydrogen, chlorine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkylthio, processes for producing them, and their use for combating insect pests.Type: GrantFiled: November 5, 1979Date of Patent: May 5, 1981Assignee: Ciba-Geigy CorporationInventors: Laurenz Gsell, Peter Ackermann, Rudolf Wehrli
-
Patent number: 4264624Abstract: .alpha.-Phenyl-.alpha.-cyclopropylacetates of the formula ##STR1## wherein X.sub.1 represents hydrogen, halogen or C.sub.1 -C.sub.4 alkyl, X.sub.2 represents hydrogen, methyl or halogen, R.sub.1 represents hydrogen, cyano, vinyl or ethynyl, and Y represents fluorine or bromine, processes for their manufacture, and a method of controlling pests which comprises the use of these novel esters.Type: GrantFiled: June 18, 1979Date of Patent: April 28, 1981Assignee: Ciba-Geigy CorporationInventors: Jozef Drabek, Peter Ackermann, Saleem Farooq, Laurenz Gsell, Odd Kristiansen, Rudolf Wehrli
-
Patent number: 4225616Abstract: Cyclopropanecarboxylic acid esters of the formula ##STR1## in which X.sub.1 is fluorine, chlorine or bromine, R.sub.1 and R.sub.2 are each hydrogen, fluorine, chlorine, bromine or methyl, R.sub.3 and R.sub.4 are each hydrogen, fluorine, chlorine, bromine, methyl, methoxy, nitro or dimethylamine, or together are methylenedioxy, and R.sub.5 is hydrogen or methyl, processes for producing them, and their use in controlling insect pests.Type: GrantFiled: June 21, 1979Date of Patent: September 30, 1980Assignee: Ciba-Geigy CorporationInventors: Peter Ackermann, Jozef Drabek, Saleem Farooq, Laurenz Gsell, Odd Kristiansen, Rudolf Wehrli