Patents by Inventor Othmar Bachmann

Othmar Bachmann 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).

  • Publication number: 20070137000
    Abstract: The invention relates to elements for a carding machine, which maintain the desired surface shape during a specific production following a possible warm-up phase when producing card slivers while ensuring the same distance between the roller fittings and the opposite element across the entire operating width of the roller.
    Type: Application
    Filed: April 6, 2004
    Publication date: June 21, 2007
    Inventors: Othmar Bachmann, Martin Tobler, Hugo Biberstein
  • Publication number: 20040016076
    Abstract: The present invention relates to a method or device for removing dust, waste and short fibres in the removal zone of a carder or carding machine, having a stripper roller or doffer, a doffing cylinder, an upper and a lower press roller, and a transverse conveyor belt. A solution according to the present invention provides at least one of the following means: means, for example a compressed air device, for generating a preset air flow in the region between the stripper roller, the doffing cylinders and the press rollers; an exhaust device for the area of the lower stripper and the lower press roller; an exhaust device for the area above the upper mote knife.
    Type: Application
    Filed: February 25, 2003
    Publication date: January 29, 2004
    Applicant: MASCHINENFABRIK RIETER AG
    Inventors: Philipp Gautschi, Peter Gujer, Jurg Bischofberger, Jurg Faas, Othmar Bachmann, Roland Styner, Christian Sauter
  • Patent number: 5048156
    Abstract: The invention relates to a method of treating cotton contaminated or imbued with honeydew. For this purpose, cotton flocks are fed into a microwave oven, in which the cotton flocks are heated by microwave energy, thus reducing the stickiness or tackiness of the honeydew such that there are no processing disadvantages on subsequent machinery. The microwave oven basically comprises a conveyor belt on which the cotton flocks are conveyed through a passage or channel provided with microwave generators. At the exit or outlet of the microwave oven the cotton flocks are transferred to an opening unit which transfers the cotton flocks into a feed chute or shaft.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: September 17, 1991
    Assignee: Maschinenfabrik Rieter, AG
    Inventors: Rene Waeber, Fritz Knabenhans, Othmar Bachmann
  • Patent number: 5008978
    Abstract: The invention relates to an apparatus for treating cotton contaminated or imbued with honeydew. For this purpose, cotton flocks are fed into a microwave oven, in which the cotton flocks are heated by microwave energy, thus reducing the stickiness or tackiness of the honeydew such that there are no processing disadvantages on subsequent machinery. The microwave oven basically comprises a conveyor belt on which the cotton flocks are conveyed through a passage or channel provided with microwave generators. At the exit or outlet of the microwave oven the cotton flocks are transferred to an opening unit which transfers the cotton flocks into a feed chute or shaft.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: April 23, 1991
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Rene Waeber, Fritz Knabenhans, Othmar Bachmann
  • Patent number: 5003670
    Abstract: The invention relates to an apparatus for reducing the stickiness or tackiness of cotton flocks. For this purpose, cotton flocks delivered by any suitable conveyor structure are received in a flock chute and brought, by rolls or rollers, as a fiber batt between a number of heated rolls or rollers, in order to be heated such that the stickiness or tackiness of the honeydew on the cotton is thus reduced to an extent which no longer has an adverse effect on subsequent machinery. Downstream of the heated rolls or rollers the fiber batt is again opened into cotton flocks by an opening roll or roller and fed to a pneumatic conveyor line through which the cotton flocks are fed to the subsequent machine.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: April 2, 1991
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Rene Waeber, Robert Demuth, Fritz Knabenhans, Othmar Bachmann
  • Patent number: 4999925
    Abstract: The invention relates to an apparatus for reducing the stickiness or tackiness of the fibers of honeydew-contaminated cotton flocks by heating the same. For this purpose, the cotton flocks while still in bale form are heated in a high-frequency electrical or electromagnetic field until the honeydew is brought to an elevated temperature and the water contained in the honeydew contamination is substantially evaporated, the temperature preferably being such that the cotton flocks reach a temperature in the region of the temperature of ebullition of boiling point of water.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: March 19, 1991
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Fritz Knabenhans, Othmar Bachmann
  • Patent number: 4999926
    Abstract: The invention relates to a method of and an apparatus for reducing the stickiness or tackiness of the fibers of honeydew-contaminated cotton flocks by heating the same. For this purpose, the cotton flocks while still in bale form are heated in a high-frequency electrical or electromagnetic field until the honeydew is brought to an elevated temperature and the water contained in the honeydew contamination is substantially evaporated, the temperature preferably being such that the cotton flocks reach a temperature in the region of the temperature of ebullition or boiling point of water.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: March 19, 1991
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Fritz Knabenhans, Othmar Bachmann
  • Patent number: 4969234
    Abstract: The invention relates to a method of reducing the stickiness or tackiness of cotton flocks. For this purpose, cotton flocks delivered by any suitable conveyor mechanism are received in a flock chute and brought, by rolls or rollers, as a fiber batt between a number of heated rolls or rollers, in order to be heated such that the stickiness or tackiness of the honeydew on the cotton is thus reduced to an extend which no longer has an adverse effect on subsequent machinery. Downstream of the heated rolls or rollers the fiber batt is again opened into cotton flocks by an opening roll or roller and fed to a pneumatic conveyor line through which the cotton flocks are fed to the subsequent machine.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: November 13, 1990
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Rene Waeber, Robert Demuth, Fritz Knabenhans, Othmar Bachmann
  • Patent number: 4964267
    Abstract: A reserve feed stock is pieced with a production feed stock, particularly a roving of a ring spinning machine. The piecing operation can be accomplished by applying twist to predetermine portions of the reserve and production feed stocks and then releasing such applied twist upon separation of the reserve and production feed stocks at predeterminate locations thereof.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: October 23, 1990
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Peter Oehy, Daniel Brennwalder, Othmar Bachmann